Serial Driver HW FIFO over flow and 64K tty buffer over flow

[hiharsh]

Hi All,

We are using the following
cat /proc/cpuinfo Processor : ARMv7 Processor rev 7 (v7l) BogoMIPS : 597.64 Features : swp half thumb fastmult vfp edsp neon vfpv3 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x1 CPU part : 0xc08 CPU revision : 7

Hardware : OMAP3517/AM3517 EVM Revision : 0020 Serial : 0000000000000000

We are using Linux kernel version 2.6.32
# uname -a Linux ti-omap3-am3517-evm 2.6.32.8 #71 PREEMPT Mon Nov 5 15:37:19 EST 2012 armv7l unknown

The issue (HW FIFO over flow) we are facing is with serial driver (driver/serial/8250.c) uart_rx_char(). The serial port has 64 bytes FIFO and it is configured to generate interrupt upon receiving 32 bytes.

We are reading/writing data from/to serial port at 460800 baud rate. The regression test runs over the period of 7-8 hours in which we send and receive data to/from the serial port. After a couple of hours what we see is that HWFIFO over flow happens and we have no clue why it is happening. We are assuming that either one of the following two things are happening.

1) The serial interrupt is skipped because other interrupts (Ethernet/ i2c and MMC (out of which we don't use MMC and i2c during the regression test ) in the systems takes too long that serial interrupts are skipped and by the time the serial ISR gets a chance to run the HW FIFO is already full.

2) The other assumption is that we must process the ISR in less than 1msec (one milisecond) as such 460800 bits per second => 460800/1000 ms ~= 460 bits/ms ~= 52bytes/ms and since we have configured serial port to generate interrupt at every 32 bytes it gives us 32/50 ms ~= 0.64 ms to complete ISR. ( I have ignred start and stop bit) but it gives rough estimated ball park.

How do I confirm the point 1 and point 2 I mentioned above? Any pointers will be appreciated.

We also assume that the 8250.c (serial driver) is fairly old and robust and it shouldn't behave the way it is for us.

Let me know if you need more information.

The 8250.c driver can be found at this lxr free electron arm v 2.6.32

One more question I have is that the serial port used on our target board is ST16654 based which has following configuration.

[PORT_16654] = { .name = "ST16654", .fifo_size = 64, .tx_loadsz = 32, .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_01 | UART_FCR_T_TRIG_10, .flags = UART_CAP_FIFO | UART_CAP_EFR | UART_CAP_SLEEP }

I checked the code and to me it looks rx trigger is set for 16 bytes wheres as tx trigger is set to 32 bytes defined this lxr free electron arm v 2.6.32

I recompiled the kernel with FTRACE support. Also, I made changes in 8250.c so that serial port rx and tx interrupt happens when the FIFO is 8 bytes full. (It was 16 bytes in rx direction and 32 bytes in tx direction). I observed that the HW FIFO overflow happened followed by 64k buffer over flow and I had a program that triggered the cat trace.


Attached are the information about trace and current kernel configuration.
Does any one know why this HW over flow and 64k buffer over flow are happening? As far as 64K buffer over run is concerned I found that flush_to_ldisc keeps requesting buffers for a long time , but why I don't understand. Any pointers?

# hrtimer: interrupt took 610352 ns
HWFIFO OVERFLOW
[12/03/2012|23:04:27.899] : checkOverRun : buf_overrun(0) overrun(1) frame(0) parity(0) brk(0) buffer(-820453800)
[12/03/2012|23:04:27.906] : Begin Dump)
# tracer: preemptoff
#
# preemptoff latency trace v1.1.5 on 2.6.32.8
# --------------------------------------------------------------------
# latency: 2288 us, #713/713, CPU#0 | (Mreempt VP:0, KP:0, SP:0 HP:0)
# -----------------
# | task: -1251 (uid:0 nice:0 policy:0 rt_prio:0)
# -----------------
# => started at: schedule
# => ended at: schedule
#
#
# _------=> CPU#
# / _-----=> irqs-off
# | / _----=> need-resched
# || / _---=> hardirq/softirq
# ||| / _--=> preempt-depth
# |||| /_--=> lock-depth
# |||||/ delay
# cmd pid |||||| time | caller
# \ / |||||| \ | /
<...>-1252 0d..1. 0us : enqueue_hrtimer <-__hrtimer_start_range_ns
<...>-1252 0...1. 0us : __hrtimer_start_range_ns
<...>-1252 0...1. 0us : trace_preempt_on <-__hrtimer_start_range_ns
<...>-1252 0...1. 0us : schedule
<...>-1252 0d..1. 0us : add_preempt_count <-schedule
<...>-1252 0d..2. 0us : omap34xx_32k_read <-sched_clock
<...>-1252 0d..2. 0us : omap_readl <-omap34xx_32k_read
<...>-1252 0d..2. 0us+: deactivate_task <-schedule
<...>-1252 0d..2. 31us : dequeue_task <-deactivate_task
<...>-1252 0d..2. 31us : update_avg <-dequeue_task
<...>-1252 0d..2. 31us : dequeue_task_fair <-dequeue_task
<...>-1252 0d..2. 31us : dequeue_entity <-dequeue_task_fair
<...>-1252 0d..2. 31us : update_curr <-dequeue_entity
<...>-1252 0d..2. 31us : update_min_vruntime <-update_curr
<...>-1252 0d..2. 31us : clear_buddies <-dequeue_entity
<...>-1252 0d..2. 31us : update_min_vruntime <-dequeue_entity
<...>-1252 0d..2. 31us : put_prev_task_fair <-schedule
<...>-1252 0d..2. 31us+: check_spread <-put_prev_task_fair
<...>-1252 0d..2. 61us : update_curr <-put_prev_task_fair
<...>-1252 0d..2. 61us : calc_delta_mine <-update_curr
<...>-1252 0d..2. 61us : update_min_vruntime <-update_curr
<...>-1252 0d..2. 61us : check_spread <-put_prev_task_fair
<...>-1252 0d..2. 61us : __enqueue_entity <-put_prev_task_fair
<...>-1252 0d..2. 61us : pick_next_task_fair <-schedule
<...>-1252 0d..2. 61us : __pick_next_entity <-pick_next_task_fair
<...>-1252 0d..2. 61us : clear_buddies <-pick_next_task_fair
<...>-1252 0d..2. 61us : set_next_entity <-pick_next_task_fair
<...>-1252 0d..2. 61us : update_stats_wait_end <-set_next_entity
<...>-1252 0d..2. 61us+: __dequeue_entity <-set_next_entity
<...>-1252 0d..2. 92us : __pick_next_entity <-pick_next_task_fair
<...>-1252 0d..2. 92us : clear_buddies <-pick_next_task_fair
<...>-1252 0d..2. 92us : set_next_entity <-pick_next_task_fair
<...>-1252 0d..2. 92us : update_stats_wait_end <-set_next_entity
<...>-1252 0d..2. 92us : __dequeue_entity <-set_next_entity
<...>-1252 0d..3. 92us : asm_do_IRQ <-__irq_svc
<...>-1252 0d..3. 92us : irq_enter <-asm_do_IRQ
<...>-1252 0d..3. 92us : rcu_irq_enter <-irq_enter
<...>-1252 0d..3. 92us+: idle_cpu <-irq_enter
<...>-1252 0d..3. 122us : add_preempt_count <-irq_enter
<...>-1252 0d.h3. 122us : irq_to_desc <-asm_do_IRQ
<...>-1252 0d.h3. 122us : handle_level_irq <-asm_do_IRQ
<...>-1252 0d.h3. 122us : add_preempt_count <-handle_level_irq
<...>-1252 0d.h4. 122us : omap_mask_irq <-handle_level_irq
<...>-1252 0d.h4. 122us : intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.h4. 122us : omap_mask_ack_irq <-handle_level_irq
<...>-1252 0d.h4. 122us : omap_mask_irq <-omap_mask_ack_irq
<...>-1252 0d.h4. 122us : intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.h4. 122us : omap_ack_irq <-omap_mask_ack_irq
<...>-1252 0d.h4. 122us+: intc_bank_write_reg <-omap_ack_irq
<...>-1252 0d.h4. 153us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.h3. 153us : handle_IRQ_event <-handle_level_irq
<...>-1252 0d.h3. 153us : omap2_gp_timer_interrupt <-handle_IRQ_event
<...>-1252 0d.h3. 153us : omap_dm_timer_write_status <-omap2_gp_timer_interrupt
<...>-1252 0d.h3. 153us : omap_dm_timer_write_reg <-omap_dm_timer_write_status
<...>-1252 0d.h3. 153us : hrtimer_interrupt <-omap2_gp_timer_interrupt
<...>-1252 0d.h3. 153us+: ktime_get <-hrtimer_interrupt
<...>-1252 0d.h3. 183us : omap34xx_32k_read <-ktime_get
<...>-1252 0d.h3. 183us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.h3. 183us : ktime_add_ns <-ktime_get
<...>-1252 0d.h3. 183us : add_preempt_count <-hrtimer_interrupt
<...>-1252 0d.h4. 183us : __run_hrtimer <-hrtimer_interrupt
<...>-1252 0d.h4. 183us : __remove_hrtimer <-__run_hrtimer
<...>-1252 0d.h4. 183us : sub_preempt_count <-__run_hrtimer
<...>-1252 0d.h3. 183us : hrtimer_wakeup <-__run_hrtimer
<...>-1252 0d.h3. 183us : wake_up_process <-hrtimer_wakeup
<...>-1252 0d.h3. 183us+: try_to_wake_up <-wake_up_process
<...>-1252 0d.h3. 214us : add_preempt_count <-try_to_wake_up
<...>-1252 0d.h4. 214us : task_rq_lock <-try_to_wake_up
<...>-1252 0d.h4. 214us : add_preempt_count <-task_rq_lock
<...>-1252 0d.h5. 214us : omap34xx_32k_read <-sched_clock
<...>-1252 0d.h5. 214us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.h5. 214us : activate_task <-try_to_wake_up
<...>-1252 0d.h5. 214us : enqueue_task <-activate_task
<...>-1252 0d.h5. 214us : enqueue_task_fair <-enqueue_task
<...>-1252 0d.h5. 214us+: enqueue_entity <-enqueue_task_fair
<...>-1252 0d.h5. 244us : update_curr <-enqueue_entity
<...>-1252 0d.h5. 244us : update_min_vruntime <-update_curr
<...>-1252 0d.h5. 244us : place_entity <-enqueue_entity
<...>-1252 0d.h5. 244us : check_spread <-enqueue_entity
<...>-1252 0d.h5. 244us : __enqueue_entity <-enqueue_entity
<...>-1252 0d.h5. 244us : check_preempt_wakeup <-try_to_wake_up
<...>-1252 0d.h5. 244us : update_curr <-check_preempt_wakeup
<...>-1252 0d.h5. 244us : wakeup_preempt_entity <-check_preempt_wakeup
<...>-1252 0d.h5. 244us+: resched_task <-check_preempt_wakeup
<...>-1252 0d.h5. 275us : sub_preempt_count <-try_to_wake_up
<...>-1252 0d.h4. 275us : sub_preempt_count <-try_to_wake_up
<...>-1252 0d.h3. 275us : add_preempt_count <-__run_hrtimer
<...>-1252 0d.h4. 275us : sub_preempt_count <-hrtimer_interrupt
<...>-1252 0d.h3. 275us : tick_program_event <-hrtimer_interrupt
<...>-1252 0d.h3. 275us : tick_dev_program_event <-tick_program_event
<...>-1252 0d.h3. 275us : ktime_get <-tick_dev_program_event
<...>-1252 0d.h3. 275us : omap34xx_32k_read <-ktime_get
<...>-1252 0d.h3. 275us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.h3. 275us+: ktime_add_ns <-ktime_get
<...>-1252 0d.h3. 305us : clockevents_program_event <-tick_dev_program_event
<...>-1252 0d.h3. 305us : omap2_gp_timer_set_next_event <-clockevents_program_event
<...>-1252 0d.h3. 305us : omap_dm_timer_set_load_start <-omap2_gp_timer_set_next_event
<...>-1252 0d.h3. 305us : omap_dm_timer_write_reg <-omap_dm_timer_set_load_start
<...>-1252 0d.h3. 305us : omap_dm_timer_write_reg <-omap_dm_timer_set_load_start
<...>-1252 0d.h3. 305us : note_interrupt <-handle_level_irq
<...>-1252 0d.h3. 305us : add_preempt_count <-handle_level_irq
<...>-1252 0d.h4. 305us : omap_unmask_irq <-handle_level_irq
<...>-1252 0d.h4. 305us+: intc_bank_write_reg <-omap_unmask_irq
<...>-1252 0d.h4. 336us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.h3. 336us : irq_exit <-asm_do_IRQ
<...>-1252 0d.h3. 336us : sub_preempt_count <-irq_exit
<...>-1252 0d..4. 336us : rcu_irq_exit <-irq_exit
<...>-1252 0d..4. 336us : idle_cpu <-irq_exit
<...>-1252 0d..4. 336us : sub_preempt_count <-irq_exit
<...>-1252 0d..3. 336us : asm_do_IRQ <-__irq_svc
<...>-1252 0d..3. 336us : irq_enter <-asm_do_IRQ
<...>-1252 0d..3. 336us : rcu_irq_enter <-irq_enter
<...>-1252 0d..3. 336us+: idle_cpu <-irq_enter
<...>-1252 0d..3. 366us : add_preempt_count <-irq_enter
<...>-1252 0d.h3. 366us : irq_to_desc <-asm_do_IRQ
<...>-1252 0d.h3. 366us : handle_level_irq <-asm_do_IRQ
<...>-1252 0d.h3. 366us : add_preempt_count <-handle_level_irq
<...>-1252 0d.h4. 366us : omap_mask_irq <-handle_level_irq
<...>-1252 0d.h4. 366us : intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.h4. 366us : omap_mask_ack_irq <-handle_level_irq
<...>-1252 0d.h4. 366us : omap_mask_irq <-omap_mask_ack_irq
<...>-1252 0d.h4. 366us : intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.h4. 366us : omap_ack_irq <-omap_mask_ack_irq
<...>-1252 0d.h4. 366us+: intc_bank_write_reg <-omap_ack_irq
<...>-1252 0d.h4. 397us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.h3. 397us : handle_IRQ_event <-handle_level_irq
<...>-1252 0d.h4. 397us : add_preempt_count <-serial8250_handle_port
<...>-1252 0d.h5. 397us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 397us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 397us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 397us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 427us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 427us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 427us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 427us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 427us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 427us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 427us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 427us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 427us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 427us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 458us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 458us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 458us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 458us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 458us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 458us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 458us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 458us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 458us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 458us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 488us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 488us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 488us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 488us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 488us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 488us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 488us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 488us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 488us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 488us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 519us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 519us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 519us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 519us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 519us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 519us : sub_preempt_count <-serial8250_handle_port
<...>-1252 0d.h4. 519us : tty_flip_buffer_push <-serial8250_handle_port
<...>-1252 0d.h4. 519us : add_preempt_count <-tty_flip_buffer_push
<...>-1252 0d.h5. 519us+: sub_preempt_count <-tty_flip_buffer_push
<...>-1252 0d.h4. 549us : schedule_delayed_work <-tty_flip_buffer_push
<...>-1252 0d.h4. 549us : queue_delayed_work <-schedule_delayed_work
<...>-1252 0d.h4. 549us : queue_delayed_work_on <-queue_delayed_work
<...>-1252 0d.h4. 549us : add_timer <-queue_delayed_work_on
<...>-1252 0d.h4. 549us : mod_timer <-add_timer
<...>-1252 0d.h4. 549us : lock_timer_base <-mod_timer
<...>-1252 0d.h4. 549us : add_preempt_count <-lock_timer_base
<...>-1252 0d.h5. 549us : internal_add_timer <-mod_timer
<...>-1252 0d.h5. 549us : sub_preempt_count <-mod_timer
<...>-1252 0d.h4. 549us+: add_preempt_count <-serial8250_handle_port
<...>-1252 0d.h5. 580us : check_modem_status <-serial8250_handle_port
<...>-1252 0d.h5. 580us : mem_serial_in <-check_modem_status
<...>-1252 0d.h5. 580us : transmit_chars <-serial8250_handle_port
<...>-1252 0d.h3. 580us : note_interrupt <-handle_level_irq
<...>-1252 0d.h3. 580us : add_preempt_count <-handle_level_irq
<...>-1252 0d.h4. 580us : omap_unmask_irq <-handle_level_irq
<...>-1252 0d.h4. 580us : intc_bank_write_reg <-omap_unmask_irq
<...>-1252 0d.h4. 580us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.h3. 580us+: irq_exit <-asm_do_IRQ
<...>-1252 0d.h3. 610us : sub_preempt_count <-irq_exit
<...>-1252 0d..4. 610us : rcu_irq_exit <-irq_exit
<...>-1252 0d..4. 610us : idle_cpu <-irq_exit
<...>-1252 0d..4. 610us : sub_preempt_count <-irq_exit
<...>-1252 0d..3. 610us : asm_do_IRQ <-__irq_svc
<...>-1252 0d..3. 610us : irq_enter <-asm_do_IRQ
<...>-1252 0d..3. 610us : rcu_irq_enter <-irq_enter
<...>-1252 0d..3. 610us : idle_cpu <-irq_enter
<...>-1252 0d..3. 610us : add_preempt_count <-irq_enter
<...>-1252 0d.h3. 610us : irq_to_desc <-asm_do_IRQ
<...>-1252 0d.h3. 610us+: handle_level_irq <-asm_do_IRQ
<...>-1252 0d.h3. 641us : add_preempt_count <-handle_level_irq
<...>-1252 0d.h4. 641us : omap_mask_irq <-handle_level_irq
<...>-1252 0d.h4. 641us : intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.h4. 641us : omap_mask_ack_irq <-handle_level_irq
<...>-1252 0d.h4. 641us : omap_mask_irq <-omap_mask_ack_irq
<...>-1252 0d.h4. 641us : intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.h4. 641us : omap_ack_irq <-omap_mask_ack_irq
<...>-1252 0d.h4. 641us : intc_bank_write_reg <-omap_ack_irq
<...>-1252 0d.h4. 641us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.h3. 641us+: handle_IRQ_event <-handle_level_irq
<...>-1252 0d.h3. 671us : omap2_gp_timer_interrupt <-handle_IRQ_event
<...>-1252 0d.h3. 671us : omap_dm_timer_write_status <-omap2_gp_timer_interrupt
<...>-1252 0d.h3. 671us : omap_dm_timer_write_reg <-omap_dm_timer_write_status
<...>-1252 0d.h3. 671us : hrtimer_interrupt <-omap2_gp_timer_interrupt
<...>-1252 0d.h3. 671us : ktime_get <-hrtimer_interrupt
<...>-1252 0d.h3. 671us : omap34xx_32k_read <-ktime_get
<...>-1252 0d.h3. 671us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.h3. 671us : ktime_add_ns <-ktime_get
<...>-1252 0d.h3. 671us : add_preempt_count <-hrtimer_interrupt
<...>-1252 0d.h4. 671us+: __run_hrtimer <-hrtimer_interrupt
<...>-1252 0d.h4. 702us : __remove_hrtimer <-__run_hrtimer
<...>-1252 0d.h4. 702us : sub_preempt_count <-__run_hrtimer
<...>-1252 0d.h3. 702us : hrtimer_wakeup <-__run_hrtimer
<...>-1252 0d.h3. 702us : wake_up_process <-hrtimer_wakeup
<...>-1252 0d.h3. 702us : try_to_wake_up <-wake_up_process
<...>-1252 0d.h3. 702us : add_preempt_count <-try_to_wake_up
<...>-1252 0d.h4. 702us : task_rq_lock <-try_to_wake_up
<...>-1252 0d.h4. 702us : add_preempt_count <-task_rq_lock
<...>-1252 0d.h5. 702us+: omap34xx_32k_read <-sched_clock
<...>-1252 0d.h5. 732us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.h5. 732us : activate_task <-try_to_wake_up
<...>-1252 0d.h5. 732us : enqueue_task <-activate_task
<...>-1252 0d.h5. 732us : enqueue_task_fair <-enqueue_task
<...>-1252 0d.h5. 732us : enqueue_entity <-enqueue_task_fair
<...>-1252 0d.h5. 732us : update_curr <-enqueue_entity
<...>-1252 0d.h5. 732us : update_min_vruntime <-update_curr
<...>-1252 0d.h5. 732us : place_entity <-enqueue_entity
<...>-1252 0d.h5. 732us+: check_spread <-enqueue_entity
<...>-1252 0d.h5. 763us : __enqueue_entity <-enqueue_entity
<...>-1252 0d.h5. 763us : check_preempt_wakeup <-try_to_wake_up
<...>-1252 0d.h5. 763us : sub_preempt_count <-try_to_wake_up
<...>-1252 0d.h4. 763us : sub_preempt_count <-try_to_wake_up
<...>-1252 0d.h3. 763us : add_preempt_count <-__run_hrtimer
<...>-1252 0d.h4. 763us : sub_preempt_count <-hrtimer_interrupt
<...>-1252 0d.h3. 763us : tick_program_event <-hrtimer_interrupt
<...>-1252 0d.h3. 763us : tick_dev_program_event <-tick_program_event
<...>-1252 0d.h3. 763us : ktime_get <-tick_dev_program_event
<...>-1252 0d.h3. 763us+: omap34xx_32k_read <-ktime_get
<...>-1252 0d.h3. 793us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.h3. 793us : ktime_add_ns <-ktime_get
<...>-1252 0d.h3. 793us : clockevents_program_event <-tick_dev_program_event
<...>-1252 0d.h3. 793us : omap2_gp_timer_set_next_event <-clockevents_program_event
<...>-1252 0d.h3. 793us : omap_dm_timer_set_load_start <-omap2_gp_timer_set_next_event
<...>-1252 0d.h3. 793us : omap_dm_timer_write_reg <-omap_dm_timer_set_load_start
<...>-1252 0d.h3. 793us : omap_dm_timer_write_reg <-omap_dm_timer_set_load_start
<...>-1252 0d.h3. 793us : note_interrupt <-handle_level_irq
<...>-1252 0d.h3. 793us+: add_preempt_count <-handle_level_irq
<...>-1252 0d.h4. 824us : omap_unmask_irq <-handle_level_irq
<...>-1252 0d.h4. 824us : intc_bank_write_reg <-omap_unmask_irq
<...>-1252 0d.h4. 824us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.h3. 824us : irq_exit <-asm_do_IRQ
<...>-1252 0d.h3. 824us : sub_preempt_count <-irq_exit
<...>-1252 0d..4. 824us : rcu_irq_exit <-irq_exit
<...>-1252 0d..4. 824us : idle_cpu <-irq_exit
<...>-1252 0d..4. 824us : sub_preempt_count <-irq_exit
<...>-1252 0d..3. 824us : asm_do_IRQ <-__irq_svc
<...>-1252 0d..3. 824us+: irq_enter <-asm_do_IRQ
<...>-1252 0d..3. 854us : rcu_irq_enter <-irq_enter
<...>-1252 0d..3. 854us : idle_cpu <-irq_enter
<...>-1252 0d..3. 854us : add_preempt_count <-irq_enter
<...>-1252 0d.h3. 854us : irq_to_desc <-asm_do_IRQ
<...>-1252 0d.h3. 854us : handle_level_irq <-asm_do_IRQ
<...>-1252 0d.h3. 854us : add_preempt_count <-handle_level_irq
<...>-1252 0d.h4. 854us : omap_mask_irq <-handle_level_irq
<...>-1252 0d.h4. 854us : intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.h4. 854us : omap_mask_ack_irq <-handle_level_irq
<...>-1252 0d.h4. 854us : omap_mask_irq <-omap_mask_ack_irq
<...>-1252 0d.h4. 854us+: intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.h4. 885us : omap_ack_irq <-omap_mask_ack_irq
<...>-1252 0d.h4. 885us : intc_bank_write_reg <-omap_ack_irq
<...>-1252 0d.h4. 885us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.h3. 885us : handle_IRQ_event <-handle_level_irq
<...>-1252 0d.h4. 885us : add_preempt_count <-serial8250_handle_port
<...>-1252 0d.h5. 885us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 885us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 885us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 885us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 916us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 916us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 916us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 916us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 916us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 916us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 916us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 916us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 916us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 916us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 946us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 946us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 946us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 946us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 946us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 946us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 946us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 946us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 946us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 977us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 977us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 977us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 977us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 977us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 977us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 977us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 977us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 977us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 977us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1007us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1007us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1007us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1007us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1007us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1007us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1007us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1007us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1007us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1038us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1038us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1038us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1038us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1038us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1038us : sub_preempt_count <-serial8250_handle_port
<...>-1252 0d.h4. 1038us : tty_flip_buffer_push <-serial8250_handle_port
<...>-1252 0d.h4. 1038us : add_preempt_count <-tty_flip_buffer_push
<...>-1252 0d.h5. 1038us : sub_preempt_count <-tty_flip_buffer_push
<...>-1252 0d.h4. 1038us+: schedule_delayed_work <-tty_flip_buffer_push
<...>-1252 0d.h4. 1068us : queue_delayed_work <-schedule_delayed_work
<...>-1252 0d.h4. 1068us : queue_delayed_work_on <-queue_delayed_work
<...>-1252 0d.h4. 1068us : add_preempt_count <-serial8250_handle_port
<...>-1252 0d.h5. 1068us : check_modem_status <-serial8250_handle_port
<...>-1252 0d.h5. 1068us : mem_serial_in <-check_modem_status
<...>-1252 0d.h5. 1068us : transmit_chars <-serial8250_handle_port
<...>-1252 0d.h6. 1068us : asm_do_IRQ <-__irq_svc
<...>-1252 0d.h6. 1068us : irq_enter <-asm_do_IRQ
<...>-1252 0d.h6. 1068us : rcu_irq_enter <-irq_enter
<...>-1252 0d.h6. 1068us : idle_cpu <-irq_enter
<...>-1252 0d.h6. 1068us+: add_preempt_count <-irq_enter
<...>-1252 0d.h6. 1099us : irq_to_desc <-asm_do_IRQ
<...>-1252 0d.h6. 1099us : handle_level_irq <-asm_do_IRQ
<...>-1252 0d.h6. 1099us : add_preempt_count <-handle_level_irq
<...>-1252 0d.h7. 1099us : omap_mask_irq <-handle_level_irq
<...>-1252 0d.h7. 1099us : intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.h7. 1099us : omap_mask_ack_irq <-handle_level_irq
<...>-1252 0d.h7. 1099us : omap_mask_irq <-omap_mask_ack_irq
<...>-1252 0d.h7. 1099us : intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.h7. 1099us : omap_ack_irq <-omap_mask_ack_irq
<...>-1252 0d.h7. 1099us+: intc_bank_write_reg <-omap_ack_irq
<...>-1252 0d.h7. 1129us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.h6. 1129us : handle_IRQ_event <-handle_level_irq
<...>-1252 0d.h6. 1129us : omap2_gp_timer_interrupt <-handle_IRQ_event
<...>-1252 0d.h6. 1129us : omap_dm_timer_write_status <-omap2_gp_timer_interrupt
<...>-1252 0d.h6. 1129us : omap_dm_timer_write_reg <-omap_dm_timer_write_status
<...>-1252 0d.h6. 1129us : hrtimer_interrupt <-omap2_gp_timer_interrupt
<...>-1252 0d.h6. 1129us : ktime_get <-hrtimer_interrupt
<...>-1252 0d.h6. 1129us : omap34xx_32k_read <-ktime_get
<...>-1252 0d.h6. 1129us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.h6. 1129us+: ktime_add_ns <-ktime_get
<...>-1252 0d.h6. 1160us : add_preempt_count <-hrtimer_interrupt
<...>-1252 0d.h7. 1160us : __run_hrtimer <-hrtimer_interrupt
<...>-1252 0d.h7. 1160us : __remove_hrtimer <-__run_hrtimer
<...>-1252 0d.h7. 1160us : sub_preempt_count <-__run_hrtimer
<...>-1252 0d.h6. 1160us : tick_sched_timer <-__run_hrtimer
<...>-1252 0d.h6. 1160us : ktime_get <-tick_sched_timer
<...>-1252 0d.h6. 1160us : omap34xx_32k_read <-ktime_get
<...>-1252 0d.h6. 1160us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.h6. 1160us+: ktime_add_ns <-ktime_get
<...>-1252 0d.h6. 1190us : tick_do_update_jiffies64 <-tick_sched_timer
<...>-1252 0d.h6. 1190us : add_preempt_count <-tick_do_update_jiffies64
<...>-1252 0d.h7. 1190us : do_timer <-tick_do_update_jiffies64
<...>-1252 0d.h7. 1190us : update_wall_time <-do_timer
<...>-1252 0d.h7. 1190us : omap34xx_32k_read <-update_wall_time
<...>-1252 0d.h7. 1190us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.h7. 1190us : calc_global_load <-do_timer
<...>-1252 0d.h7. 1190us+: sub_preempt_count <-tick_do_update_jiffies64
<...>-1252 0d.h6. 1221us : update_process_times <-tick_sched_timer
<...>-1252 0d.h6. 1221us : account_process_tick <-update_process_times
<...>-1252 0d.h6. 1221us : account_system_time <-account_process_tick
<...>-1252 0d.h6. 1221us : run_local_timers <-update_process_times
<...>-1252 0d.h6. 1221us : hrtimer_run_queues <-run_local_timers
<...>-1252 0d.h6. 1221us : raise_softirq <-run_local_timers
<...>-1252 0d.h6. 1221us : softlockup_tick <-run_local_timers
<...>-1252 0d.h6. 1221us : get_timestamp <-softlockup_tick
<...>-1252 0d.h6. 1221us+: omap34xx_32k_read <-sched_clock
<...>-1252 0d.h6. 1251us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.h6. 1251us : rcu_check_callbacks <-update_process_times
<...>-1252 0d.h6. 1251us : __rcu_pending <-rcu_check_callbacks
<...>-1252 0d.h6. 1251us : cpu_has_callbacks_ready_to_invoke <-__rcu_pending
<...>-1252 0d.h6. 1251us : cpu_needs_another_gp <-__rcu_pending
<...>-1252 0d.h6. 1251us : rcu_gp_in_progress <-__rcu_pending
<...>-1252 0d.h6. 1251us : __rcu_pending <-rcu_check_callbacks
<...>-1252 0d.h6. 1251us+: cpu_has_callbacks_ready_to_invoke <-__rcu_pending
<...>-1252 0d.h6. 1282us : cpu_needs_another_gp <-__rcu_pending
<...>-1252 0d.h6. 1282us : rcu_gp_in_progress <-__rcu_pending
<...>-1252 0d.h6. 1282us : printk_tick <-update_process_times
<...>-1252 0d.h6. 1282us : scheduler_tick <-update_process_times
<...>-1252 0d.h6. 1282us : add_preempt_count <-scheduler_tick
<...>-1252 0d.h7. 1282us : omap34xx_32k_read <-sched_clock
<...>-1252 0d.h7. 1282us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.h7. 1282us : task_tick_fair <-scheduler_tick
<...>-1252 0d.h7. 1282us+: update_curr <-task_tick_fair
<...>-1252 0d.h7. 1312us : update_min_vruntime <-update_curr
<...>-1252 0d.h7. 1312us : sched_slice <-task_tick_fair
<...>-1252 0d.h7. 1312us : calc_delta_mine <-sched_slice
<...>-1252 0d.h7. 1312us : calc_delta_mine <-sched_slice
<...>-1252 0d.h7. 1312us : __pick_next_entity <-task_tick_fair
<...>-1252 0d.h7. 1312us : resched_task <-task_tick_fair
<...>-1252 0d.h7. 1312us : update_curr <-task_tick_fair
<...>-1252 0d.h7. 1312us : calc_delta_mine <-update_curr
<...>-1252 0d.h7. 1312us : update_min_vruntime <-update_curr
<...>-1252 0d.h7. 1312us+: sub_preempt_count <-scheduler_tick
<...>-1252 0d.h6. 1343us : run_posix_cpu_timers <-update_process_times
<...>-1252 0d.h6. 1343us : profile_tick <-tick_sched_timer
<...>-1252 0d.h6. 1343us : hrtimer_forward <-tick_sched_timer
<...>-1252 0d.h6. 1343us : ktime_add_safe <-hrtimer_forward
<...>-1252 0d.h6. 1343us : ktime_add_safe <-hrtimer_forward
<...>-1252 0d.h6. 1343us : add_preempt_count <-__run_hrtimer
<...>-1252 0d.h7. 1343us : enqueue_hrtimer <-__run_hrtimer
<...>-1252 0d.h7. 1343us : sub_preempt_count <-hrtimer_interrupt
<...>-1252 0d.h6. 1343us+: tick_program_event <-hrtimer_interrupt
<...>-1252 0d.h6. 1373us : tick_dev_program_event <-tick_program_event
<...>-1252 0d.h6. 1373us : ktime_get <-tick_dev_program_event
<...>-1252 0d.h6. 1373us : omap34xx_32k_read <-ktime_get
<...>-1252 0d.h6. 1373us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.h6. 1373us : ktime_add_ns <-ktime_get
<...>-1252 0d.h6. 1373us : clockevents_program_event <-tick_dev_program_event
<...>-1252 0d.h6. 1373us : omap2_gp_timer_set_next_event <-clockevents_program_event
<...>-1252 0d.h6. 1373us : omap_dm_timer_set_load_start <-omap2_gp_timer_set_next_event
<...>-1252 0d.h6. 1373us+: omap_dm_timer_write_reg <-omap_dm_timer_set_load_start
<...>-1252 0d.h6. 1404us : omap_dm_timer_write_reg <-omap_dm_timer_set_load_start
<...>-1252 0d.h6. 1404us : note_interrupt <-handle_level_irq
<...>-1252 0d.h6. 1404us : add_preempt_count <-handle_level_irq
<...>-1252 0d.h7. 1404us : omap_unmask_irq <-handle_level_irq
<...>-1252 0d.h7. 1404us : intc_bank_write_reg <-omap_unmask_irq
<...>-1252 0d.h7. 1404us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.h6. 1404us : irq_exit <-asm_do_IRQ
<...>-1252 0d.h6. 1404us : sub_preempt_count <-irq_exit
<...>-1252 0d.h7. 1404us : rcu_irq_exit <-irq_exit
<...>-1252 0d.h7. 1404us+: idle_cpu <-irq_exit
<...>-1252 0d.h7. 1434us : sub_preempt_count <-irq_exit
<...>-1252 0d.h4. 1434us : add_preempt_count <-serial8250_handle_port
<...>-1252 0d.h5. 1434us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1434us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1434us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1434us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1434us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1434us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1434us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1465us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1465us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1465us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1465us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1465us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1465us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1465us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1465us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1465us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1465us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1495us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1495us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1495us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1495us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1495us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1495us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1495us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1495us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1495us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1495us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1526us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1526us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1526us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1526us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1526us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1526us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1526us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1526us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1526us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1556us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1556us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1556us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1556us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1556us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1556us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1556us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1556us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1556us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1556us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1587us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1587us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1587us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1587us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1587us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.h5. 1587us : sub_preempt_count <-serial8250_handle_port
<...>-1252 0d.h4. 1587us : tty_flip_buffer_push <-serial8250_handle_port
<...>-1252 0d.h4. 1587us : add_preempt_count <-tty_flip_buffer_push
<...>-1252 0d.h5. 1587us : sub_preempt_count <-tty_flip_buffer_push
<...>-1252 0d.h4. 1587us+: schedule_delayed_work <-tty_flip_buffer_push
<...>-1252 0d.h4. 1617us : queue_delayed_work <-schedule_delayed_work
<...>-1252 0d.h4. 1617us : queue_delayed_work_on <-queue_delayed_work
<...>-1252 0d.h4. 1617us : add_preempt_count <-serial8250_handle_port
<...>-1252 0d.h5. 1617us : check_modem_status <-serial8250_handle_port
<...>-1252 0d.h5. 1617us : mem_serial_in <-check_modem_status
<...>-1252 0d.h5. 1617us : transmit_chars <-serial8250_handle_port
<...>-1252 0d.h3. 1617us : note_interrupt <-handle_level_irq
<...>-1252 0d.h3. 1617us : add_preempt_count <-handle_level_irq
<...>-1252 0d.h4. 1617us : omap_unmask_irq <-handle_level_irq
<...>-1252 0d.h4. 1617us+: intc_bank_write_reg <-omap_unmask_irq
<...>-1252 0d.h4. 1648us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.h3. 1648us : irq_exit <-asm_do_IRQ
<...>-1252 0d.h3. 1648us : sub_preempt_count <-irq_exit
<...>-1252 0d..4. 1648us : __do_softirq <-irq_exit
<...>-1252 0d..4. 1648us : __local_bh_disable <-__do_softirq
<...>-1252 0d.s5. 1648us : asm_do_IRQ <-__irq_svc
<...>-1252 0d.s5. 1648us : irq_enter <-asm_do_IRQ
<...>-1252 0d.s5. 1648us : rcu_irq_enter <-irq_enter
<...>-1252 0d.s5. 1648us+: idle_cpu <-irq_enter
<...>-1252 0d.s5. 1678us : add_preempt_count <-irq_enter
<...>-1252 0d.H5. 1678us : irq_to_desc <-asm_do_IRQ
<...>-1252 0d.H5. 1678us : handle_level_irq <-asm_do_IRQ
<...>-1252 0d.H5. 1678us : add_preempt_count <-handle_level_irq
<...>-1252 0d.H6. 1678us : omap_mask_irq <-handle_level_irq
<...>-1252 0d.H6. 1678us : intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.H6. 1678us : omap_mask_ack_irq <-handle_level_irq
<...>-1252 0d.H6. 1678us : omap_mask_irq <-omap_mask_ack_irq
<...>-1252 0d.H6. 1678us : intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.H6. 1678us : omap_ack_irq <-omap_mask_ack_irq
<...>-1252 0d.H6. 1678us+: intc_bank_write_reg <-omap_ack_irq
<...>-1252 0d.H6. 1709us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.H5. 1709us : handle_IRQ_event <-handle_level_irq
<...>-1252 0d.H5. 1709us : omap2_gp_timer_interrupt <-handle_IRQ_event
<...>-1252 0d.H5. 1709us : omap_dm_timer_write_status <-omap2_gp_timer_interrupt
<...>-1252 0d.H5. 1709us : omap_dm_timer_write_reg <-omap_dm_timer_write_status
<...>-1252 0d.H5. 1709us : hrtimer_interrupt <-omap2_gp_timer_interrupt
<...>-1252 0d.H5. 1709us : ktime_get <-hrtimer_interrupt
<...>-1252 0d.H5. 1709us : omap34xx_32k_read <-ktime_get
<...>-1252 0d.H5. 1709us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.H5. 1709us+: ktime_add_ns <-ktime_get
<...>-1252 0d.H5. 1740us : add_preempt_count <-hrtimer_interrupt
<...>-1252 0d.H6. 1740us : __run_hrtimer <-hrtimer_interrupt
<...>-1252 0d.H6. 1740us : __remove_hrtimer <-__run_hrtimer
<...>-1252 0d.H6. 1740us : sub_preempt_count <-__run_hrtimer
<...>-1252 0d.H5. 1740us : hrtimer_wakeup <-__run_hrtimer
<...>-1252 0d.H5. 1740us : wake_up_process <-hrtimer_wakeup
<...>-1252 0d.H5. 1740us : try_to_wake_up <-wake_up_process
<...>-1252 0d.H5. 1740us : add_preempt_count <-try_to_wake_up
<...>-1252 0d.H6. 1740us : task_rq_lock <-try_to_wake_up
<...>-1252 0d.H6. 1740us+: add_preempt_count <-task_rq_lock
<...>-1252 0d.H7. 1770us : omap34xx_32k_read <-sched_clock
<...>-1252 0d.H7. 1770us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.H7. 1770us : activate_task <-try_to_wake_up
<...>-1252 0d.H7. 1770us : enqueue_task <-activate_task
<...>-1252 0d.H7. 1770us : enqueue_task_fair <-enqueue_task
<...>-1252 0d.H7. 1770us : enqueue_entity <-enqueue_task_fair
<...>-1252 0d.H7. 1770us : update_curr <-enqueue_entity
<...>-1252 0d.H7. 1770us : update_min_vruntime <-update_curr
<...>-1252 0d.H7. 1770us : place_entity <-enqueue_entity
<...>-1252 0d.H7. 1770us+: check_spread <-enqueue_entity
<...>-1252 0d.H7. 1801us : __enqueue_entity <-enqueue_entity
<...>-1252 0d.H7. 1801us : check_preempt_wakeup <-try_to_wake_up
<...>-1252 0d.H7. 1801us : sub_preempt_count <-try_to_wake_up
<...>-1252 0d.H6. 1801us : sub_preempt_count <-try_to_wake_up
<...>-1252 0d.H5. 1801us : add_preempt_count <-__run_hrtimer
<...>-1252 0d.H6. 1801us : sub_preempt_count <-hrtimer_interrupt
<...>-1252 0d.H5. 1801us+: tick_program_event <-hrtimer_interrupt
<...>-1252 0d.H5. 1831us : tick_dev_program_event <-tick_program_event
<...>-1252 0d.H5. 1831us : ktime_get <-tick_dev_program_event
<...>-1252 0d.H5. 1831us : omap34xx_32k_read <-ktime_get
<...>-1252 0d.H5. 1831us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.H5. 1831us : ktime_add_ns <-ktime_get
<...>-1252 0d.H5. 1831us : clockevents_program_event <-tick_dev_program_event
<...>-1252 0d.H5. 1831us : omap2_gp_timer_set_next_event <-clockevents_program_event
<...>-1252 0d.H5. 1831us : omap_dm_timer_set_load_start <-omap2_gp_timer_set_next_event
<...>-1252 0d.H5. 1831us : omap_dm_timer_write_reg <-omap_dm_timer_set_load_start
<...>-1252 0d.H5. 1831us+: omap_dm_timer_write_reg <-omap_dm_timer_set_load_start
<...>-1252 0d.H5. 1862us : note_interrupt <-handle_level_irq
<...>-1252 0d.H5. 1862us : add_preempt_count <-handle_level_irq
<...>-1252 0d.H6. 1862us : omap_unmask_irq <-handle_level_irq
<...>-1252 0d.H6. 1862us : intc_bank_write_reg <-omap_unmask_irq
<...>-1252 0d.H6. 1862us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.H5. 1862us : irq_exit <-asm_do_IRQ
<...>-1252 0d.H5. 1862us : sub_preempt_count <-irq_exit
<...>-1252 0d.s6. 1862us : rcu_irq_exit <-irq_exit
<...>-1252 0d.s6. 1862us : idle_cpu <-irq_exit
<...>-1252 0d.s6. 1862us+: sub_preempt_count <-irq_exit
<...>-1252 0d.s5. 1892us : asm_do_IRQ <-__irq_svc
<...>-1252 0d.s5. 1892us : irq_enter <-asm_do_IRQ
<...>-1252 0d.s5. 1892us : rcu_irq_enter <-irq_enter
<...>-1252 0d.s5. 1892us : idle_cpu <-irq_enter
<...>-1252 0d.s5. 1892us : add_preempt_count <-irq_enter
<...>-1252 0d.H5. 1892us : irq_to_desc <-asm_do_IRQ
<...>-1252 0d.H5. 1892us : handle_level_irq <-asm_do_IRQ
<...>-1252 0d.H5. 1892us : add_preempt_count <-handle_level_irq
<...>-1252 0d.H6. 1892us : omap_mask_irq <-handle_level_irq
<...>-1252 0d.H6. 1892us+: intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.H6. 1923us : omap_mask_ack_irq <-handle_level_irq
<...>-1252 0d.H6. 1923us : omap_mask_irq <-omap_mask_ack_irq
<...>-1252 0d.H6. 1923us : intc_bank_write_reg <-omap_mask_irq
<...>-1252 0d.H6. 1923us : omap_ack_irq <-omap_mask_ack_irq
<...>-1252 0d.H6. 1923us : intc_bank_write_reg <-omap_ack_irq
<...>-1252 0d.H6. 1923us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.H5. 1923us : handle_IRQ_event <-handle_level_irq
<...>-1252 0d.H5. 1923us : add_preempt_count <-lock_timer_base
<...>-1252 0d.H6. 1923us+: internal_add_timer <-mod_timer
<...>-1252 0d.H6. 1953us : add_preempt_count <-serial8250_handle_port
<...>-1252 0d.H7. 1953us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1953us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1953us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1953us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1953us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1953us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1953us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1953us+: mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1984us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1984us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1984us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1984us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1984us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1984us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1984us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1984us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1984us : mem_serial_in <-serial8250_handle_port
<...>-1252 0d.H7. 1984us+: sub_preempt_count <-serial8250_handle_port
<...>-1252 0d.H6. 2014us : tty_flip_buffer_push <-serial8250_handle_port
<...>-1252 0d.H6. 2014us : add_preempt_count <-tty_flip_buffer_push
<...>-1252 0d.H7. 2014us : sub_preempt_count <-tty_flip_buffer_push
<...>-1252 0d.H6. 2014us : schedule_delayed_work <-tty_flip_buffer_push
<...>-1252 0d.H6. 2014us : queue_delayed_work <-schedule_delayed_work
<...>-1252 0d.H6. 2014us : queue_delayed_work_on <-queue_delayed_work
<...>-1252 0d.H6. 2014us : add_preempt_count <-serial8250_handle_port
<...>-1252 0d.H7. 2014us : check_modem_status <-serial8250_handle_port
<...>-1252 0d.H7. 2014us : mem_serial_in <-check_modem_status
<...>-1252 0d.H7. 2014us+: transmit_chars <-serial8250_handle_port
<...>-1252 0d.H5. 2045us : note_interrupt <-handle_level_irq
<...>-1252 0d.H5. 2045us : add_preempt_count <-handle_level_irq
<...>-1252 0d.H6. 2045us : omap_unmask_irq <-handle_level_irq
<...>-1252 0d.H6. 2045us : intc_bank_write_reg <-omap_unmask_irq
<...>-1252 0d.H6. 2045us : sub_preempt_count <-handle_level_irq
<...>-1252 0d.H5. 2045us : irq_exit <-asm_do_IRQ
<...>-1252 0d.H5. 2045us : sub_preempt_count <-irq_exit
<...>-1252 0d.s6. 2045us : rcu_irq_exit <-irq_exit
<...>-1252 0d.s6. 2045us : idle_cpu <-irq_exit
<...>-1252 0d.s6. 2045us+: sub_preempt_count <-irq_exit
<...>-1252 0d.s4. 2075us : add_preempt_count <-run_timer_softirq
<...>-1252 0d.s4. 2075us : add_preempt_count <-__queue_work
<...>-1252 0d.s5. 2075us : insert_work <-__queue_work
<...>-1252 0d.s6. 2075us : add_preempt_count <-probe_workqueue_insertion
<...>-1252 0d.s7. 2075us : sub_preempt_count <-probe_workqueue_insertion
<...>-1252 0d.s5. 2075us : __wake_up <-insert_work
<...>-1252 0d.s5. 2075us+: add_preempt_count <-__wake_up
<...>-1252 0d.s6. 2106us : __wake_up_common <-__wake_up
<...>-1252 0d.s6. 2106us : autoremove_wake_function <-__wake_up_common
<...>-1252 0d.s6. 2106us : default_wake_function <-autoremove_wake_function
<...>-1252 0d.s6. 2106us : try_to_wake_up <-default_wake_function
<...>-1252 0d.s6. 2106us : add_preempt_count <-try_to_wake_up
<...>-1252 0d.s7. 2106us : task_rq_lock <-try_to_wake_up
<...>-1252 0d.s7. 2106us : add_preempt_count <-task_rq_lock
<...>-1252 0d.s8. 2106us : omap34xx_32k_read <-sched_clock
<...>-1252 0d.s8. 2106us : omap_readl <-omap34xx_32k_read
<...>-1252 0d.s8. 2106us+: activate_task <-try_to_wake_up
<...>-1252 0d.s8. 2136us : enqueue_task <-activate_task
<...>-1252 0d.s8. 2136us : enqueue_task_fair <-enqueue_task
<...>-1252 0d.s8. 2136us : enqueue_entity <-enqueue_task_fair
<...>-1252 0d.s8. 2136us : update_curr <-enqueue_entity
<...>-1252 0d.s8. 2136us : update_min_vruntime <-update_curr
<...>-1252 0d.s8. 2136us : place_entity <-enqueue_entity
<...>-1252 0d.s8. 2136us : check_spread <-enqueue_entity
<...>-1252 0d.s8. 2136us : __enqueue_entity <-enqueue_entity
<...>-1252 0d.s8. 2136us : check_preempt_wakeup <-try_to_wake_up
<...>-1252 0d.s8. 2136us+: sub_preempt_count <-try_to_wake_up
<...>-1252 0d.s7. 2167us : sub_preempt_count <-try_to_wake_up
<...>-1252 0d.s6. 2167us : sub_preempt_count <-__wake_up
<...>-1252 0d.s4. 2167us : add_preempt_count <-run_timer_softirq
<...>-1252 0d.s4. 2167us : _local_bh_enable <-__do_softirq
<...>-1252 0d.s4. 2167us : sub_preempt_count <-_local_bh_enable
<...>-1252 0d..4. 2167us : rcu_irq_exit <-irq_exit
<...>-1252 0d..4. 2167us : idle_cpu <-irq_exit
<...>-1252 0d..4. 2167us+: sub_preempt_count <-irq_exit
llrpserv-1248 0dN.1. 2197us : add_preempt_count <-schedule
llrpserv-1248 0dN.2. 2197us : omap34xx_32k_read <-sched_clock
llrpserv-1248 0dN.2. 2197us : omap_readl <-omap34xx_32k_read
llrpserv-1248 0d..2. 2197us : update_avg <-schedule
llrpserv-1248 0d..2. 2197us : put_prev_task_fair <-schedule
llrpserv-1248 0d..2. 2197us : update_curr <-put_prev_task_fair
llrpserv-1248 0d..2. 2197us : update_min_vruntime <-update_curr
llrpserv-1248 0d..2. 2197us+: check_spread <-put_prev_task_fair
llrpserv-1248 0d..2. 2228us : __enqueue_entity <-put_prev_task_fair
llrpserv-1248 0d..2. 2228us : update_curr <-put_prev_task_fair
llrpserv-1248 0d..2. 2228us : calc_delta_mine <-update_curr
llrpserv-1248 0d..2. 2228us : update_min_vruntime <-update_curr
llrpserv-1248 0d..2. 2228us : check_spread <-put_prev_task_fair
llrpserv-1248 0d..2. 2228us : __enqueue_entity <-put_prev_task_fair
llrpserv-1248 0d..2. 2228us : pick_next_task_rt <-schedule
llrpserv-1248 0d..2. 2228us : pick_next_task_fair <-schedule
llrpserv-1248 0d..2. 2228us : __pick_next_entity <-pick_next_task_fair
llrpserv-1248 0d..2. 2228us+: clear_buddies <-pick_next_task_fair
llrpserv-1248 0d..2. 2258us : set_next_entity <-pick_next_task_fair
#err64k
#noroom
#buf_overrun


# preemptoff latency trace v1.1.5 on 2.6.32.8
# --------------------------------------------------------------------
# latency: 3021 us, #966/966, CPU#0 | (Mreempt VP:0, KP:0, SP:0 HP:0)
# -----------------
# | task: -5 (uid:0 nice:0 policy:0 rt_prio:0)
# -----------------
# => started at: flush_to_ldisc
# => ended at: flush_to_ldisc
#
#
# _------=> CPU#
# / _-----=> irqs-off
# | / _----=> need-resched
# || / _---=> hardirq/softirq
# ||| / _--=> preempt-depth
# |||| /_--=> lock-depth
# |||||/ delay
# cmd pid |||||| time | caller
# \ / |||||| \ | /
events/0-5 0...1. 0us : trace_preempt_on <-worker_thread
events/0-5 0d..1. 0us : tty_ldisc_try
events/0-5 0...1. 0us : tty_ldisc_try
events/0-5 0...1. 0us : trace_preempt_on <-tty_ldisc_try
events/0-5 0d..1. 0us : flush_to_ldisc
events/0-5 0d..1. 0us+: schedule_delayed_work <-flush_to_ldisc
events/0-5 0d..1. 31us : queue_delayed_work <-schedule_delayed_work
events/0-5 0d..1. 31us : queue_delayed_work_on <-queue_delayed_work
events/0-5 0d..1. 31us : add_timer <-queue_delayed_work_on
events/0-5 0d..1. 31us : mod_timer <-add_timer
events/0-5 0d..1. 31us : lock_timer_base <-mod_timer
events/0-5 0d..1. 31us : add_preempt_count <-lock_timer_base
events/0-5 0d..2. 31us : internal_add_timer <-mod_timer
events/0-5 0d..2. 31us+: sub_preempt_count <-mod_timer
events/0-5 0d..2. 61us : asm_do_IRQ <-__irq_svc
events/0-5 0d..2. 61us : irq_enter <-asm_do_IRQ
events/0-5 0d..2. 61us : rcu_irq_enter <-irq_enter
events/0-5 0d..2. 61us : idle_cpu <-irq_enter
events/0-5 0d..2. 61us : add_preempt_count <-irq_enter
events/0-5 0d.h2. 61us : irq_to_desc <-asm_do_IRQ
events/0-5 0d.h2. 61us : handle_level_irq <-asm_do_IRQ
events/0-5 0d.h2. 61us : add_preempt_count <-handle_level_irq
events/0-5 0d.h3. 61us : omap_mask_irq <-handle_level_irq
events/0-5 0d.h3. 61us+: intc_bank_write_reg <-omap_mask_irq
events/0-5 0d.h3. 92us : omap_mask_ack_irq <-handle_level_irq
events/0-5 0d.h3. 92us : omap_mask_irq <-omap_mask_ack_irq
events/0-5 0d.h3. 92us : intc_bank_write_reg <-omap_mask_irq
events/0-5 0d.h3. 92us : omap_ack_irq <-omap_mask_ack_irq
events/0-5 0d.h3. 92us : intc_bank_write_reg <-omap_ack_irq
events/0-5 0d.h3. 92us : sub_preempt_count <-handle_level_irq
events/0-5 0d.h2. 92us : handle_IRQ_event <-handle_level_irq
events/0-5 0d.h3. 92us : add_preempt_count <-serial8250_handle_port
events/0-5 0d.h4. 92us+: mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 122us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 122us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 122us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 122us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 122us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 122us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 122us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 122us+: tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 153us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 153us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 153us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 153us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 153us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 153us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 153us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 153us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 153us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 153us+: mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 183us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 183us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 183us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 183us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 183us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 183us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 183us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 183us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 183us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 183us+: add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 214us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 214us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 214us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 214us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 214us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 214us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 214us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 214us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 214us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 214us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 214us+: tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 244us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 244us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 244us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 244us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 244us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 244us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 244us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 244us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 244us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 244us+: mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 275us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 275us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 275us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 275us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 275us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 275us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 275us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 275us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 275us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 275us+: sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 305us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 305us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 305us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 305us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 305us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 305us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 305us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 305us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 305us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 305us+: tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 336us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 336us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 336us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 336us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 336us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 336us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 336us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 336us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 336us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 336us+: mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 366us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 366us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 366us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 366us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 366us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 366us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 366us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 366us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 366us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 366us+: sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 397us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 397us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 397us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 397us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 397us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 397us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 397us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 397us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 397us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 397us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 397us+: add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 427us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 427us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 427us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 427us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 427us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 427us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 427us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 427us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 427us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 427us+: tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 458us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 458us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 458us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 458us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 458us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 458us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 458us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 458us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 458us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 458us+: mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 488us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 488us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 488us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 488us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 488us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 488us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 488us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 488us+: tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 519us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 519us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 519us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 519us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 519us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 519us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 519us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 519us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 519us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 519us+: mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 549us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 549us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 549us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 549us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 549us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 549us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 549us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 549us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 549us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 549us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 549us+: sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 580us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 580us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 580us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 580us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 580us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 580us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 580us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 580us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 580us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 580us+: tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 610us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 610us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 610us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 610us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 610us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 610us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 610us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 610us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 610us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 610us+: mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 641us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 641us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 641us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 641us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 641us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 641us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 641us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 641us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 641us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 641us+: sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 671us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 671us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 671us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 671us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 671us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 671us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 671us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 671us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 671us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 671us+: tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 702us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 702us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 702us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 702us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 702us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 702us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 702us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 702us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 702us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 702us+: mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 732us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 732us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 732us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 732us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 732us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 732us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 732us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 732us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 732us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 732us+: sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 763us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 763us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 763us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 763us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 763us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 763us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 763us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 763us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 763us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 763us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 763us+: add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 793us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 793us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 793us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 793us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 793us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 793us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 793us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 793us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 793us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 793us+: tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 824us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 824us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 824us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 824us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 824us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 824us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 824us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 824us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 824us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 824us+: mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 854us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 854us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 854us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 854us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 854us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 854us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 854us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 854us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 854us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 854us+: add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 885us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 885us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 885us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 885us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 885us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 885us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 885us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 885us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 885us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 885us+: tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 916us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 916us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 916us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 916us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 916us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 916us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 916us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 916us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 916us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 916us+: mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 946us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 946us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 946us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 946us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 946us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 946us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 946us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 946us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 946us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 946us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 946us+: sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 977us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 977us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 977us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 977us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 977us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 977us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 977us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 977us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 977us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 977us+: tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1007us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1007us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1007us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1007us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1007us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 1007us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1007us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1007us+: sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1038us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1038us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1038us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 1038us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1038us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1038us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1038us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1038us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1038us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 1038us+: tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1068us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1068us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1068us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1068us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1068us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 1068us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1068us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1068us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1068us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1068us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1068us+: tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 1099us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1099us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1099us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1099us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1099us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1099us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 1099us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1099us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1099us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1099us+: mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1129us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1129us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 1129us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1129us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1129us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1129us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1129us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1129us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 1129us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1129us+: add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1160us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1160us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1160us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1160us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 1160us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1160us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1160us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1160us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1160us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1160us+: tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 1190us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1190us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1190us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1190us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1190us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1190us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 1190us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1190us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1190us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1190us+: mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1221us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1221us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0d.h4. 1221us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0d.h4. 1221us : add_preempt_count <-tty_buffer_request_room
events/0-5 0d.h5. 1221us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0d.h4. 1221us : mem_serial_in <-serial8250_handle_port
events/0-5 0d.h4. 1221us : sub_preempt_count <-serial8250_handle_port
events/0-5 0d.h3. 1221us : tty_flip_buffer_push <-serial8250_handle_port
events/0-5 0d.h3. 1221us : add_preempt_count <-tty_flip_buffer_push
events/0-5 0d.h4. 1221us+: sub_preempt_count <-tty_flip_buffer_push
events/0-5 0d.h3. 1251us : schedule_delayed_work <-tty_flip_buffer_push
events/0-5 0d.h3. 1251us : queue_delayed_work <-schedule_delayed_work
events/0-5 0d.h3. 1251us : queue_delayed_work_on <-queue_delayed_work
events/0-5 0d.h3. 1251us : add_preempt_count <-serial8250_handle_port
events/0-5 0d.h4. 1251us : check_modem_status <-serial8250_handle_port
events/0-5 0d.h4. 1251us : mem_serial_in <-check_modem_status
events/0-5 0d.h4. 1251us : transmit_chars <-serial8250_handle_port
events/0-5 0d.h5. 1251us : asm_do_IRQ <-__irq_svc
events/0-5 0d.h5. 1251us : irq_enter <-asm_do_IRQ
events/0-5 0d.h5. 1251us+: rcu_irq_enter <-irq_enter
events/0-5 0d.h5. 1282us : idle_cpu <-irq_enter
events/0-5 0d.h5. 1282us : add_preempt_count <-irq_enter
events/0-5 0d.h5. 1282us : irq_to_desc <-asm_do_IRQ
events/0-5 0d.h5. 1282us : handle_level_irq <-asm_do_IRQ
events/0-5 0d.h5. 1282us : add_preempt_count <-handle_level_irq
events/0-5 0d.h6. 1282us : omap_mask_irq <-handle_level_irq
events/0-5 0d.h6. 1282us : intc_bank_write_reg <-omap_mask_irq
events/0-5 0d.h6. 1282us : omap_mask_ack_irq <-handle_level_irq
events/0-5 0d.h6. 1282us : omap_mask_irq <-omap_mask_ack_irq
events/0-5 0d.h6. 1282us : intc_bank_write_reg <-omap_mask_irq
events/0-5 0d.h6. 1282us+: omap_ack_irq <-omap_mask_ack_irq
events/0-5 0d.h6. 1312us : intc_bank_write_reg <-omap_ack_irq
events/0-5 0d.h6. 1312us : sub_preempt_count <-handle_level_irq
events/0-5 0d.h5. 1312us : handle_IRQ_event <-handle_level_irq
events/0-5 0d.h6. 1312us : asm_do_IRQ <-__irq_svc
events/0-5 0d.h6. 1312us : irq_enter <-asm_do_IRQ
events/0-5 0d.h6. 1312us : rcu_irq_enter <-irq_enter
events/0-5 0d.h6. 1312us : idle_cpu <-irq_enter
events/0-5 0d.h6. 1312us : add_preempt_count <-irq_enter
events/0-5 0d.h6. 1312us : irq_to_desc <-asm_do_IRQ
events/0-5 0d.h6. 1312us+: handle_level_irq <-asm_do_IRQ
events/0-5 0d.h6. 1343us : add_preempt_count <-handle_level_irq
events/0-5 0d.h7. 1343us : omap_mask_irq <-handle_level_irq
events/0-5 0d.h7. 1343us : intc_bank_write_reg <-omap_mask_irq
events/0-5 0d.h7. 1343us : omap_mask_ack_irq <-handle_level_irq
events/0-5 0d.h7. 1343us : omap_mask_irq <-omap_mask_ack_irq
events/0-5 0d.h7. 1343us : intc_bank_write_reg <-omap_mask_irq
events/0-5 0d.h7. 1343us : omap_ack_irq <-omap_mask_ack_irq
events/0-5 0d.h7. 1343us : intc_bank_write_reg <-omap_ack_irq
events/0-5 0d.h7. 1343us : sub_preempt_count <-handle_level_irq
events/0-5 0d.h6. 1343us+: handle_IRQ_event <-handle_level_irq
events/0-5 0d.h6. 1373us : omap2_gp_timer_interrupt <-handle_IRQ_event
events/0-5 0d.h6. 1373us : omap_dm_timer_write_status <-omap2_gp_timer_interrupt
events/0-5 0d.h6. 1373us : omap_dm_timer_write_reg <-omap_dm_timer_write_status
events/0-5 0d.h6. 1373us : hrtimer_interrupt <-omap2_gp_timer_interrupt
events/0-5 0d.h6. 1373us : ktime_get <-hrtimer_interrupt
events/0-5 0d.h6. 1373us : omap34xx_32k_read <-ktime_get
events/0-5 0d.h6. 1373us : omap_readl <-omap34xx_32k_read
events/0-5 0d.h6. 1373us : ktime_add_ns <-ktime_get
events/0-5 0d.h6. 1373us+: add_preempt_count <-hrtimer_interrupt
events/0-5 0d.h7. 1404us : __run_hrtimer <-hrtimer_interrupt
events/0-5 0d.h7. 1404us : __remove_hrtimer <-__run_hrtimer
events/0-5 0d.h7. 1404us : sub_preempt_count <-__run_hrtimer
events/0-5 0d.h6. 1404us : hrtimer_wakeup <-__run_hrtimer
events/0-5 0d.h6. 1404us : wake_up_process <-hrtimer_wakeup
events/0-5 0d.h6. 1404us : try_to_wake_up <-wake_up_process
events/0-5 0d.h6. 1404us : add_preempt_count <-try_to_wake_up
events/0-5 0d.h7. 1404us : task_rq_lock <-try_to_wake_up
events/0-5 0d.h7. 1404us+: add_preempt_count <-task_rq_lock
events/0-5 0d.h8. 1434us : omap34xx_32k_read <-sched_clock
events/0-5 0d.h8. 1434us : omap_readl <-omap34xx_32k_read
events/0-5 0d.h8. 1434us : activate_task <-try_to_wake_up
events/0-5 0d.h8. 1434us : enqueue_task <-activate_task
events/0-5 0d.h8. 1434us : enqueue_task_fair <-enqueue_task
events/0-5 0d.h8. 1434us : enqueue_entity <-enqueue_task_fair
events/0-5 0d.h8. 1434us : update_curr <-enqueue_entity
events/0-5 0d.h8. 1434us : update_min_vruntime <-update_curr
events/0-5 0d.h8. 1434us+: place_entity <-enqueue_entity
events/0-5 0d.h8. 1465us : check_spread <-enqueue_entity
events/0-5 0d.h8. 1465us : __enqueue_entity <-enqueue_entity
events/0-5 0d.h8. 1465us : check_preempt_wakeup <-try_to_wake_up
events/0-5 0d.h8. 1465us : update_curr <-check_preempt_wakeup
events/0-5 0d.h8. 1465us : wakeup_preempt_entity <-check_preempt_wakeup
events/0-5 0d.h8. 1465us : resched_task <-check_preempt_wakeup
events/0-5 0dNh8. 1465us : sub_preempt_count <-try_to_wake_up
events/0-5 0dNh7. 1465us+: preempt_schedule <-try_to_wake_up
events/0-5 0dNh7. 1495us : sub_preempt_count <-try_to_wake_up
events/0-5 0dNh6. 1495us : preempt_schedule <-try_to_wake_up
events/0-5 0dNh6. 1495us : add_preempt_count <-__run_hrtimer
events/0-5 0dNh7. 1495us : __run_hrtimer <-hrtimer_interrupt
events/0-5 0dNh7. 1495us : __remove_hrtimer <-__run_hrtimer
events/0-5 0dNh7. 1495us : sub_preempt_count <-__run_hrtimer
events/0-5 0dNh6. 1495us : preempt_schedule <-__run_hrtimer
events/0-5 0dNh6. 1495us : tick_sched_timer <-__run_hrtimer
events/0-5 0dNh6. 1495us : ktime_get <-tick_sched_timer
events/0-5 0dNh6. 1495us+: omap34xx_32k_read <-ktime_get
events/0-5 0dNh6. 1526us : omap_readl <-omap34xx_32k_read
events/0-5 0dNh6. 1526us : ktime_add_ns <-ktime_get
events/0-5 0dNh6. 1526us : tick_do_update_jiffies64 <-tick_sched_timer
events/0-5 0dNh6. 1526us : add_preempt_count <-tick_do_update_jiffies64
events/0-5 0dNh7. 1526us : do_timer <-tick_do_update_jiffies64
events/0-5 0dNh7. 1526us : update_wall_time <-do_timer
events/0-5 0dNh7. 1526us : omap34xx_32k_read <-update_wall_time
events/0-5 0dNh7. 1526us+: omap_readl <-omap34xx_32k_read
events/0-5 0dNh7. 1556us : calc_global_load <-do_timer
events/0-5 0dNh7. 1556us : sub_preempt_count <-tick_do_update_jiffies64
events/0-5 0dNh6. 1556us : preempt_schedule <-tick_do_update_jiffies64
events/0-5 0dNh6. 1556us : update_process_times <-tick_sched_timer
events/0-5 0dNh6. 1556us : account_process_tick <-update_process_times
events/0-5 0dNh6. 1556us : account_system_time <-account_process_tick
events/0-5 0dNh6. 1556us+: run_local_timers <-update_process_times
events/0-5 0dNh6. 1587us : hrtimer_run_queues <-run_local_timers
events/0-5 0dNh6. 1587us : raise_softirq <-run_local_timers
events/0-5 0dNh6. 1587us : softlockup_tick <-run_local_timers
events/0-5 0dNh6. 1587us : get_timestamp <-softlockup_tick
events/0-5 0dNh6. 1587us : omap34xx_32k_read <-sched_clock
events/0-5 0dNh6. 1587us : omap_readl <-omap34xx_32k_read
events/0-5 0dNh6. 1587us : rcu_check_callbacks <-update_process_times
events/0-5 0dNh6. 1587us : __rcu_pending <-rcu_check_callbacks
events/0-5 0dNh6. 1587us+: cpu_has_callbacks_ready_to_invoke <-__rcu_pending
events/0-5 0dNh6. 1617us : cpu_needs_another_gp <-__rcu_pending
events/0-5 0dNh6. 1617us : rcu_gp_in_progress <-__rcu_pending
events/0-5 0dNh6. 1617us : __rcu_pending <-rcu_check_callbacks
events/0-5 0dNh6. 1617us : cpu_has_callbacks_ready_to_invoke <-__rcu_pending
events/0-5 0dNh6. 1617us : cpu_needs_another_gp <-__rcu_pending
events/0-5 0dNh6. 1617us : rcu_gp_in_progress <-__rcu_pending
events/0-5 0dNh6. 1617us : printk_tick <-update_process_times
events/0-5 0dNh6. 1617us : scheduler_tick <-update_process_times
events/0-5 0dNh6. 1617us+: add_preempt_count <-scheduler_tick
events/0-5 0dNh7. 1648us : omap34xx_32k_read <-sched_clock
events/0-5 0dNh7. 1648us : omap_readl <-omap34xx_32k_read
events/0-5 0dNh7. 1648us : task_tick_fair <-scheduler_tick
events/0-5 0dNh7. 1648us : update_curr <-task_tick_fair
events/0-5 0dNh7. 1648us : update_min_vruntime <-update_curr
events/0-5 0dNh7. 1648us : sched_slice <-task_tick_fair
events/0-5 0dNh7. 1648us : calc_delta_mine <-sched_slice
events/0-5 0dNh7. 1648us : calc_delta_mine <-sched_slice
events/0-5 0dNh7. 1648us : resched_task <-task_tick_fair
events/0-5 0dNh7. 1648us+: clear_buddies <-task_tick_fair
events/0-5 0dNh7. 1678us : update_curr <-task_tick_fair
events/0-5 0dNh7. 1678us : calc_delta_mine <-update_curr
events/0-5 0dNh7. 1678us : update_min_vruntime <-update_curr
events/0-5 0dNh7. 1678us : sub_preempt_count <-scheduler_tick
events/0-5 0dNh6. 1678us : preempt_schedule <-scheduler_tick
events/0-5 0dNh6. 1678us : run_posix_cpu_timers <-update_process_times
events/0-5 0dNh6. 1678us : profile_tick <-tick_sched_timer
events/0-5 0dNh6. 1678us+: hrtimer_forward <-tick_sched_timer
events/0-5 0dNh6. 1709us : ktime_add_safe <-hrtimer_forward
events/0-5 0dNh6. 1709us : ktime_add_safe <-hrtimer_forward
events/0-5 0dNh6. 1709us : add_preempt_count <-__run_hrtimer
events/0-5 0dNh7. 1709us : enqueue_hrtimer <-__run_hrtimer
events/0-5 0dNh7. 1709us : sub_preempt_count <-hrtimer_interrupt
events/0-5 0dNh6. 1709us : preempt_schedule <-hrtimer_interrupt
events/0-5 0dNh6. 1709us : tick_program_event <-hrtimer_interrupt
events/0-5 0dNh6. 1709us : tick_dev_program_event <-tick_program_event
events/0-5 0dNh6. 1709us : ktime_get <-tick_dev_program_event
events/0-5 0dNh6. 1709us+: omap34xx_32k_read <-ktime_get
events/0-5 0dNh6. 1740us : omap_readl <-omap34xx_32k_read
events/0-5 0dNh6. 1740us : ktime_add_ns <-ktime_get
events/0-5 0dNh6. 1740us : clockevents_program_event <-tick_dev_program_event
events/0-5 0dNh6. 1740us : ktime_get <-hrtimer_interrupt
events/0-5 0dNh6. 1740us : omap34xx_32k_read <-ktime_get
events/0-5 0dNh6. 1740us : omap_readl <-omap34xx_32k_read
events/0-5 0dNh6. 1740us : ktime_add_ns <-ktime_get
events/0-5 0dNh6. 1740us : add_preempt_count <-hrtimer_interrupt
events/0-5 0dNh7. 1740us+: __run_hrtimer <-hrtimer_interrupt
events/0-5 0dNh7. 1770us : __remove_hrtimer <-__run_hrtimer
events/0-5 0dNh7. 1770us : sub_preempt_count <-__run_hrtimer
events/0-5 0dNh6. 1770us : preempt_schedule <-__run_hrtimer
events/0-5 0dNh6. 1770us : hrtimer_wakeup <-__run_hrtimer
events/0-5 0dNh6. 1770us : wake_up_process <-hrtimer_wakeup
events/0-5 0dNh6. 1770us : try_to_wake_up <-wake_up_process
events/0-5 0dNh6. 1770us : add_preempt_count <-try_to_wake_up
events/0-5 0dNh7. 1770us : task_rq_lock <-try_to_wake_up
events/0-5 0dNh7. 1770us : add_preempt_count <-task_rq_lock
events/0-5 0dNh8. 1770us : omap34xx_32k_read <-sched_clock
events/0-5 0dNh8. 1770us+: omap_readl <-omap34xx_32k_read
events/0-5 0dNh8. 1801us : activate_task <-try_to_wake_up
events/0-5 0dNh8. 1801us : enqueue_task <-activate_task
events/0-5 0dNh8. 1801us : enqueue_task_fair <-enqueue_task
events/0-5 0dNh8. 1801us : enqueue_entity <-enqueue_task_fair
events/0-5 0dNh8. 1801us : update_curr <-enqueue_entity
events/0-5 0dNh8. 1801us : update_min_vruntime <-update_curr
events/0-5 0dNh8. 1801us : place_entity <-enqueue_entity
events/0-5 0dNh8. 1801us : check_spread <-enqueue_entity
events/0-5 0dNh8. 1801us+: __enqueue_entity <-enqueue_entity
events/0-5 0dNh8. 1831us : check_preempt_wakeup <-try_to_wake_up
events/0-5 0dNh8. 1831us : sub_preempt_count <-try_to_wake_up
events/0-5 0dNh7. 1831us : preempt_schedule <-try_to_wake_up
events/0-5 0dNh7. 1831us : sub_preempt_count <-try_to_wake_up
events/0-5 0dNh6. 1831us : preempt_schedule <-try_to_wake_up
events/0-5 0dNh6. 1831us : add_preempt_count <-__run_hrtimer
events/0-5 0dNh7. 1831us : sub_preempt_count <-hrtimer_interrupt
events/0-5 0dNh6. 1831us : preempt_schedule <-hrtimer_interrupt
events/0-5 0dNh6. 1831us : tick_program_event <-hrtimer_interrupt
events/0-5 0dNh6. 1831us : tick_dev_program_event <-tick_program_event
events/0-5 0dNh6. 1831us+: ktime_get <-tick_dev_program_event
events/0-5 0dNh6. 1862us : omap34xx_32k_read <-ktime_get
events/0-5 0dNh6. 1862us : omap_readl <-omap34xx_32k_read
events/0-5 0dNh6. 1862us : ktime_add_ns <-ktime_get
events/0-5 0dNh6. 1862us : clockevents_program_event <-tick_dev_program_event
events/0-5 0dNh6. 1862us : ktime_get <-hrtimer_interrupt
events/0-5 0dNh6. 1862us : omap34xx_32k_read <-ktime_get
events/0-5 0dNh6. 1862us : omap_readl <-omap34xx_32k_read
events/0-5 0dNh6. 1862us : ktime_add_ns <-ktime_get
events/0-5 0dNh6. 1862us : add_preempt_count <-hrtimer_interrupt
events/0-5 0dNh7. 1862us+: __run_hrtimer <-hrtimer_interrupt
events/0-5 0dNh7. 1892us : __remove_hrtimer <-__run_hrtimer
events/0-5 0dNh7. 1892us : sub_preempt_count <-__run_hrtimer
events/0-5 0dNh6. 1892us : preempt_schedule <-__run_hrtimer
events/0-5 0dNh6. 1892us : hrtimer_wakeup <-__run_hrtimer
events/0-5 0dNh6. 1892us : wake_up_process <-hrtimer_wakeup
events/0-5 0dNh6. 1892us : try_to_wake_up <-wake_up_process
events/0-5 0dNh6. 1892us : add_preempt_count <-try_to_wake_up
events/0-5 0dNh7. 1892us : task_rq_lock <-try_to_wake_up
events/0-5 0dNh7. 1892us : add_preempt_count <-task_rq_lock
events/0-5 0dNh8. 1892us : omap34xx_32k_read <-sched_clock
events/0-5 0dNh8. 1892us+: omap_readl <-omap34xx_32k_read
events/0-5 0dNh8. 1923us : activate_task <-try_to_wake_up
events/0-5 0dNh8. 1923us : enqueue_task <-activate_task
events/0-5 0dNh8. 1923us : enqueue_task_fair <-enqueue_task
events/0-5 0dNh8. 1923us : enqueue_entity <-enqueue_task_fair
events/0-5 0dNh8. 1923us : update_curr <-enqueue_entity
events/0-5 0dNh8. 1923us : update_min_vruntime <-update_curr
events/0-5 0dNh8. 1923us : place_entity <-enqueue_entity
events/0-5 0dNh8. 1923us : check_spread <-enqueue_entity
events/0-5 0dNh8. 1923us+: __enqueue_entity <-enqueue_entity
events/0-5 0dNh8. 1953us : check_preempt_wakeup <-try_to_wake_up
events/0-5 0dNh8. 1953us : sub_preempt_count <-try_to_wake_up
events/0-5 0dNh7. 1953us : preempt_schedule <-try_to_wake_up
events/0-5 0dNh7. 1953us : sub_preempt_count <-try_to_wake_up
events/0-5 0dNh6. 1953us : preempt_schedule <-try_to_wake_up
events/0-5 0dNh6. 1953us : add_preempt_count <-__run_hrtimer
events/0-5 0dNh7. 1953us : sub_preempt_count <-hrtimer_interrupt
events/0-5 0dNh6. 1953us : preempt_schedule <-hrtimer_interrupt
events/0-5 0dNh6. 1953us : tick_program_event <-hrtimer_interrupt
events/0-5 0dNh6. 1953us : tick_dev_program_event <-tick_program_event
events/0-5 0dNh6. 1953us+: ktime_get <-tick_dev_program_event
events/0-5 0dNh6. 1984us : omap34xx_32k_read <-ktime_get
events/0-5 0dNh6. 1984us : omap_readl <-omap34xx_32k_read
events/0-5 0dNh6. 1984us : ktime_add_ns <-ktime_get
events/0-5 0dNh6. 1984us : clockevents_program_event <-tick_dev_program_event
events/0-5 0dNh6. 1984us : omap2_gp_timer_set_next_event <-clockevents_program_event
events/0-5 0dNh6. 1984us : omap_dm_timer_set_load_start <-omap2_gp_timer_set_next_event
events/0-5 0dNh6. 1984us : omap_dm_timer_write_reg <-omap_dm_timer_set_load_start
events/0-5 0dNh6. 1984us+: omap_dm_timer_write_reg <-omap_dm_timer_set_load_start
events/0-5 0dNh6. 2014us : note_interrupt <-handle_level_irq
events/0-5 0dNh6. 2014us : add_preempt_count <-handle_level_irq
events/0-5 0dNh7. 2014us : omap_unmask_irq <-handle_level_irq
events/0-5 0dNh7. 2014us : intc_bank_write_reg <-omap_unmask_irq
events/0-5 0dNh7. 2014us : sub_preempt_count <-handle_level_irq
events/0-5 0dNh6. 2014us : preempt_schedule <-handle_level_irq
events/0-5 0dNh6. 2014us : irq_exit <-asm_do_IRQ
events/0-5 0dNh6. 2014us : sub_preempt_count <-irq_exit
events/0-5 0dNh7. 2014us : rcu_irq_exit <-irq_exit
events/0-5 0dNh7. 2014us : idle_cpu <-irq_exit
events/0-5 0dNh7. 2014us+: sub_preempt_count <-irq_exit
events/0-5 0dNh5. 2045us : add_preempt_count <-lock_timer_base
events/0-5 0dNh6. 2045us : internal_add_timer <-mod_timer
events/0-5 0dNh6. 2045us : add_preempt_count <-serial8250_handle_port
events/0-5 0dNh7. 2045us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh7. 2045us : check_modem_status <-serial8250_handle_port
events/0-5 0dNh7. 2045us : mem_serial_in <-check_modem_status
events/0-5 0dNh7. 2045us+: transmit_chars <-serial8250_handle_port
events/0-5 0dNh7. 2075us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2075us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2075us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2075us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2075us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2075us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2075us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2075us : mem_serial_out <-transmit_chars
events/0-5 0dNh5. 2075us : note_interrupt <-handle_level_irq
events/0-5 0dNh5. 2075us+: add_preempt_count <-handle_level_irq
events/0-5 0dNh6. 2106us : omap_unmask_irq <-handle_level_irq
events/0-5 0dNh6. 2106us : intc_bank_write_reg <-omap_unmask_irq
events/0-5 0dNh6. 2106us : sub_preempt_count <-handle_level_irq
events/0-5 0dNh5. 2106us : preempt_schedule <-handle_level_irq
events/0-5 0dNh5. 2106us : irq_exit <-asm_do_IRQ
events/0-5 0dNh5. 2106us : sub_preempt_count <-irq_exit
events/0-5 0dNh6. 2106us : rcu_irq_exit <-irq_exit
events/0-5 0dNh6. 2106us : idle_cpu <-irq_exit
events/0-5 0dNh6. 2106us+: sub_preempt_count <-irq_exit
events/0-5 0dNh3. 2136us : add_preempt_count <-serial8250_handle_port
events/0-5 0dNh4. 2136us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2136us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2136us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2136us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2136us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2136us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2136us : preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2136us+: mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2167us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2167us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2167us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2167us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2167us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2167us : preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2167us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2167us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2167us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2167us+: tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2197us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2197us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2197us : preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2197us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2197us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2197us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2197us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2197us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2197us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2197us : preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2197us+: mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2228us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2228us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2228us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2228us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2228us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2228us : preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2228us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2228us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2228us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2228us+: tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2258us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2258us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2258us : preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2258us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2258us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2258us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2258us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2258us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2258us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2258us : preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2258us+: mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2289us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2289us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2289us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2289us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2289us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2289us : preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2289us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2289us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2289us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2289us+: tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2319us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2319us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2319us : preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2319us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2319us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2319us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2319us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2319us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2319us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2319us+: preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2350us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2350us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2350us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2350us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2350us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2350us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2350us : preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2350us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2350us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2350us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2350us+: tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2380us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2380us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2380us : preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2380us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2380us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2380us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2380us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2380us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2380us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2380us+: preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2411us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2411us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2411us : tty_insert_flip_string_flags <-serial8250_handle_port
events/0-5 0dNh4. 2411us : tty_buffer_request_room <-tty_insert_flip_string_flags
events/0-5 0dNh4. 2411us : add_preempt_count <-tty_buffer_request_room
events/0-5 0dNh5. 2411us : sub_preempt_count <-tty_buffer_request_room
events/0-5 0dNh4. 2411us : preempt_schedule <-tty_buffer_request_room
events/0-5 0dNh4. 2411us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh4. 2411us : sub_preempt_count <-serial8250_handle_port
events/0-5 0dNh3. 2411us : preempt_schedule <-serial8250_handle_port
events/0-5 0dNh3. 2411us+: tty_flip_buffer_push <-serial8250_handle_port
events/0-5 0dNh3. 2441us : add_preempt_count <-tty_flip_buffer_push
events/0-5 0dNh4. 2441us : sub_preempt_count <-tty_flip_buffer_push
events/0-5 0dNh3. 2441us : preempt_schedule <-tty_flip_buffer_push
events/0-5 0dNh3. 2441us : schedule_delayed_work <-tty_flip_buffer_push
events/0-5 0dNh3. 2441us : queue_delayed_work <-schedule_delayed_work
events/0-5 0dNh3. 2441us : queue_delayed_work_on <-queue_delayed_work
events/0-5 0dNh3. 2441us : add_preempt_count <-serial8250_handle_port
events/0-5 0dNh4. 2441us : check_modem_status <-serial8250_handle_port
events/0-5 0dNh4. 2441us : mem_serial_in <-check_modem_status
events/0-5 0dNh4. 2441us+: transmit_chars <-serial8250_handle_port
events/0-5 0dNh5. 2472us : asm_do_IRQ <-__irq_svc
events/0-5 0dNh5. 2472us : irq_enter <-asm_do_IRQ
events/0-5 0dNh5. 2472us : rcu_irq_enter <-irq_enter
events/0-5 0dNh5. 2472us : idle_cpu <-irq_enter
events/0-5 0dNh5. 2472us : add_preempt_count <-irq_enter
events/0-5 0dNh5. 2472us : irq_to_desc <-asm_do_IRQ
events/0-5 0dNh5. 2472us : handle_level_irq <-asm_do_IRQ
events/0-5 0dNh5. 2472us : add_preempt_count <-handle_level_irq
events/0-5 0dNh6. 2472us : omap_mask_irq <-handle_level_irq
events/0-5 0dNh6. 2472us : intc_bank_write_reg <-omap_mask_irq
events/0-5 0dNh6. 2472us+: omap_mask_ack_irq <-handle_level_irq
events/0-5 0dNh6. 2502us : omap_mask_irq <-omap_mask_ack_irq
events/0-5 0dNh6. 2502us : intc_bank_write_reg <-omap_mask_irq
events/0-5 0dNh6. 2502us : omap_ack_irq <-omap_mask_ack_irq
events/0-5 0dNh6. 2502us : intc_bank_write_reg <-omap_ack_irq
events/0-5 0dNh6. 2502us : sub_preempt_count <-handle_level_irq
events/0-5 0dNh5. 2502us : preempt_schedule <-handle_level_irq
events/0-5 0dNh5. 2502us : handle_IRQ_event <-handle_level_irq
events/0-5 0dNh5. 2502us : omap2_gp_timer_interrupt <-handle_IRQ_event
events/0-5 0dNh5. 2502us : omap_dm_timer_write_status <-omap2_gp_timer_interrupt
events/0-5 0dNh5. 2502us : omap_dm_timer_write_reg <-omap_dm_timer_write_status
events/0-5 0dNh5. 2502us+: hrtimer_interrupt <-omap2_gp_timer_interrupt
events/0-5 0dNh5. 2533us : ktime_get <-hrtimer_interrupt
events/0-5 0dNh5. 2533us : omap34xx_32k_read <-ktime_get
events/0-5 0dNh5. 2533us : omap_readl <-omap34xx_32k_read
events/0-5 0dNh5. 2533us : ktime_add_ns <-ktime_get
events/0-5 0dNh5. 2533us : add_preempt_count <-hrtimer_interrupt
events/0-5 0dNh6. 2533us : __run_hrtimer <-hrtimer_interrupt
events/0-5 0dNh6. 2533us : __remove_hrtimer <-__run_hrtimer
events/0-5 0dNh6. 2533us : sub_preempt_count <-__run_hrtimer
events/0-5 0dNh5. 2533us : preempt_schedule <-__run_hrtimer
events/0-5 0dNh5. 2533us+: hrtimer_wakeup <-__run_hrtimer
events/0-5 0dNh5. 2563us : wake_up_process <-hrtimer_wakeup
events/0-5 0dNh5. 2563us : try_to_wake_up <-wake_up_process
events/0-5 0dNh5. 2563us : add_preempt_count <-try_to_wake_up
events/0-5 0dNh6. 2563us : task_rq_lock <-try_to_wake_up
events/0-5 0dNh6. 2563us : add_preempt_count <-task_rq_lock
events/0-5 0dNh7. 2563us : omap34xx_32k_read <-sched_clock
events/0-5 0dNh7. 2563us : omap_readl <-omap34xx_32k_read
events/0-5 0dNh7. 2563us : activate_task <-try_to_wake_up
events/0-5 0dNh7. 2563us : enqueue_task <-activate_task
events/0-5 0dNh7. 2563us+: enqueue_task_fair <-enqueue_task
events/0-5 0dNh7. 2594us : enqueue_entity <-enqueue_task_fair
events/0-5 0dNh7. 2594us : update_curr <-enqueue_entity
events/0-5 0dNh7. 2594us : update_min_vruntime <-update_curr
events/0-5 0dNh7. 2594us : place_entity <-enqueue_entity
events/0-5 0dNh7. 2594us : check_spread <-enqueue_entity
events/0-5 0dNh7. 2594us : __enqueue_entity <-enqueue_entity
events/0-5 0dNh7. 2594us : check_preempt_wakeup <-try_to_wake_up
events/0-5 0dNh7. 2594us+: sub_preempt_count <-try_to_wake_up
events/0-5 0dNh6. 2625us : preempt_schedule <-try_to_wake_up
events/0-5 0dNh6. 2625us : sub_preempt_count <-try_to_wake_up
events/0-5 0dNh5. 2625us : preempt_schedule <-try_to_wake_up
events/0-5 0dNh5. 2625us : add_preempt_count <-__run_hrtimer
events/0-5 0dNh6. 2625us : __run_hrtimer <-hrtimer_interrupt
events/0-5 0dNh6. 2625us : __remove_hrtimer <-__run_hrtimer
events/0-5 0dNh6. 2625us : sub_preempt_count <-__run_hrtimer
events/0-5 0dNh5. 2625us : preempt_schedule <-__run_hrtimer
events/0-5 0dNh5. 2625us : hrtimer_wakeup <-__run_hrtimer
events/0-5 0dNh5. 2625us+: wake_up_process <-hrtimer_wakeup
events/0-5 0dNh5. 2655us : try_to_wake_up <-wake_up_process
events/0-5 0dNh5. 2655us : add_preempt_count <-try_to_wake_up
events/0-5 0dNh6. 2655us : task_rq_lock <-try_to_wake_up
events/0-5 0dNh6. 2655us : add_preempt_count <-task_rq_lock
events/0-5 0dNh7. 2655us : omap34xx_32k_read <-sched_clock
events/0-5 0dNh7. 2655us : omap_readl <-omap34xx_32k_read
events/0-5 0dNh7. 2655us : activate_task <-try_to_wake_up
events/0-5 0dNh7. 2655us : enqueue_task <-activate_task
events/0-5 0dNh7. 2655us : enqueue_task_fair <-enqueue_task
events/0-5 0dNh7. 2655us+: enqueue_entity <-enqueue_task_fair
events/0-5 0dNh7. 2686us : update_curr <-enqueue_entity
events/0-5 0dNh7. 2686us : update_min_vruntime <-update_curr
events/0-5 0dNh7. 2686us : place_entity <-enqueue_entity
events/0-5 0dNh7. 2686us : check_spread <-enqueue_entity
events/0-5 0dNh7. 2686us : __enqueue_entity <-enqueue_entity
events/0-5 0dNh7. 2686us : check_preempt_wakeup <-try_to_wake_up
events/0-5 0dNh7. 2686us : sub_preempt_count <-try_to_wake_up
events/0-5 0dNh6. 2686us : preempt_schedule <-try_to_wake_up
events/0-5 0dNh6. 2686us : sub_preempt_count <-try_to_wake_up
events/0-5 0dNh5. 2686us+: preempt_schedule <-try_to_wake_up
events/0-5 0dNh5. 2716us : add_preempt_count <-__run_hrtimer
events/0-5 0dNh6. 2716us : sub_preempt_count <-hrtimer_interrupt
events/0-5 0dNh5. 2716us : preempt_schedule <-hrtimer_interrupt
events/0-5 0dNh5. 2716us : tick_program_event <-hrtimer_interrupt
events/0-5 0dNh5. 2716us : tick_dev_program_event <-tick_program_event
events/0-5 0dNh5. 2716us : ktime_get <-tick_dev_program_event
events/0-5 0dNh5. 2716us : omap34xx_32k_read <-ktime_get
events/0-5 0dNh5. 2716us : omap_readl <-omap34xx_32k_read
events/0-5 0dNh5. 2716us : ktime_add_ns <-ktime_get
events/0-5 0dNh5. 2716us : clockevents_program_event <-tick_dev_program_event
events/0-5 0dNh5. 2716us+: omap2_gp_timer_set_next_event <-clockevents_program_event
events/0-5 0dNh5. 2747us : omap_dm_timer_set_load_start <-omap2_gp_timer_set_next_event
events/0-5 0dNh5. 2747us : omap_dm_timer_write_reg <-omap_dm_timer_set_load_start
events/0-5 0dNh5. 2747us : omap_dm_timer_write_reg <-omap_dm_timer_set_load_start
events/0-5 0dNh5. 2747us : note_interrupt <-handle_level_irq
events/0-5 0dNh5. 2747us : add_preempt_count <-handle_level_irq
events/0-5 0dNh6. 2747us : omap_unmask_irq <-handle_level_irq
events/0-5 0dNh6. 2747us : intc_bank_write_reg <-omap_unmask_irq
events/0-5 0dNh6. 2747us : sub_preempt_count <-handle_level_irq
events/0-5 0dNh5. 2747us+: preempt_schedule <-handle_level_irq
events/0-5 0dNh5. 2777us : irq_exit <-asm_do_IRQ
events/0-5 0dNh5. 2777us : sub_preempt_count <-irq_exit
events/0-5 0dNh6. 2777us : rcu_irq_exit <-irq_exit
events/0-5 0dNh6. 2777us : idle_cpu <-irq_exit
events/0-5 0dNh6. 2777us : sub_preempt_count <-irq_exit
events/0-5 0dNh5. 2777us : asm_do_IRQ <-__irq_svc
events/0-5 0dNh5. 2777us : irq_enter <-asm_do_IRQ
events/0-5 0dNh5. 2777us : rcu_irq_enter <-irq_enter
events/0-5 0dNh5. 2777us : idle_cpu <-irq_enter
events/0-5 0dNh5. 2777us : add_preempt_count <-irq_enter
events/0-5 0dNh5. 2777us+: irq_to_desc <-asm_do_IRQ
events/0-5 0dNh5. 2808us : handle_level_irq <-asm_do_IRQ
events/0-5 0dNh5. 2808us : add_preempt_count <-handle_level_irq
events/0-5 0dNh6. 2808us : omap_mask_irq <-handle_level_irq
events/0-5 0dNh6. 2808us : intc_bank_write_reg <-omap_mask_irq
events/0-5 0dNh6. 2808us : omap_mask_ack_irq <-handle_level_irq
events/0-5 0dNh6. 2808us : omap_mask_irq <-omap_mask_ack_irq
events/0-5 0dNh6. 2808us : intc_bank_write_reg <-omap_mask_irq
events/0-5 0dNh6. 2808us : omap_ack_irq <-omap_mask_ack_irq
events/0-5 0dNh6. 2808us : intc_bank_write_reg <-omap_ack_irq
events/0-5 0dNh6. 2808us : sub_preempt_count <-handle_level_irq
events/0-5 0dNh5. 2808us+: preempt_schedule <-handle_level_irq
events/0-5 0dNh5. 2838us : handle_IRQ_event <-handle_level_irq
events/0-5 0dNh6. 2838us : add_preempt_count <-serial8250_handle_port
events/0-5 0dNh7. 2838us : mem_serial_in <-serial8250_handle_port
events/0-5 0dNh7. 2838us : check_modem_status <-serial8250_handle_port
events/0-5 0dNh7. 2838us : mem_serial_in <-check_modem_status
events/0-5 0dNh7. 2838us : transmit_chars <-serial8250_handle_port
events/0-5 0dNh7. 2838us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2838us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2838us+: mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2869us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2869us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2869us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2869us : mem_serial_out <-transmit_chars
events/0-5 0dNh7. 2869us : mem_serial_out <-transmit_chars
events/0-5 0dNh5. 2869us : note_interrupt <-handle_level_irq
events/0-5 0dNh5. 2869us : add_preempt_count <-handle_level_irq
events/0-5 0dNh6. 2869us : omap_unmask_irq <-handle_level_irq
events/0-5 0dNh6. 2869us : intc_bank_write_reg <-omap_unmask_irq
events/0-5 0dNh6. 2869us+: sub_preempt_count <-handle_level_irq
events/0-5 0dNh5. 2899us : preempt_schedule <-handle_level_irq
events/0-5 0dNh5. 2899us : irq_exit <-asm_do_IRQ
events/0-5 0dNh5. 2899us : sub_preempt_count <-irq_exit
events/0-5 0dNh6. 2899us : rcu_irq_exit <-irq_exit
events/0-5 0dNh6. 2899us : idle_cpu <-irq_exit
events/0-5 0dNh6. 2899us : sub_preempt_count <-irq_exit
events/0-5 0dNh2. 2899us : note_interrupt <-handle_level_irq
events/0-5 0dNh2. 2899us : add_preempt_count <-handle_level_irq
events/0-5 0dNh3. 2899us : omap_unmask_irq <-handle_level_irq
events/0-5 0dNh3. 2899us+: intc_bank_write_reg <-omap_unmask_irq
events/0-5 0dNh3. 2930us : sub_preempt_count <-handle_level_irq
events/0-5 0dNh2. 2930us : preempt_schedule <-handle_level_irq
events/0-5 0dNh2. 2930us : irq_exit <-asm_do_IRQ
events/0-5 0dNh2. 2930us : sub_preempt_count <-irq_exit
events/0-5 0dN.3. 2930us : __do_softirq <-irq_exit
events/0-5 0dN.3. 2930us : __local_bh_disable <-__do_softirq
events/0-5 0dNs3. 2930us+: add_preempt_count <-run_timer_softirq
events/0-5 0dNs3. 2960us : add_preempt_count <-__queue_work
events/0-5 0dNs4. 2960us : insert_work <-__queue_work
events/0-5 0dNs5. 2960us : add_preempt_count <-probe_workqueue_insertion
events/0-5 0dNs6. 2960us : sub_preempt_count <-probe_workqueue_insertion
events/0-5 0dNs5. 2960us : preempt_schedule <-probe_workqueue_insertion
events/0-5 0dNs4. 2960us : preempt_schedule <-insert_work
events/0-5 0dNs4. 2960us : __wake_up <-insert_work
events/0-5 0dNs4. 2960us : add_preempt_count <-__wake_up
events/0-5 0dNs5. 2960us+: __wake_up_common <-__wake_up
events/0-5 0dNs5. 2991us : sub_preempt_count <-__wake_up
events/0-5 0dNs4. 2991us : preempt_schedule <-__wake_up
events/0-5 0dNs3. 2991us : add_preempt_count <-run_timer_softirq
events/0-5 0dNs3. 2991us : _local_bh_enable <-__do_softirq
events/0-5 0dNs3. 2991us : sub_preempt_count <-_local_bh_enable
events/0-5 0dN.3. 2991us : rcu_irq_exit <-irq_exit
events/0-5 0dN.3. 2991us : idle_cpu <-irq_exit
events/0-5 0dN.3. 2991us : sub_preempt_count <-irq_exit
events/0-5 0.N.1. 2991us+: flush_to_ldisc
events/0-5 0.N.1. 3021us : trace_preempt_on <-flush_to_ldisc

[Rubberman]

What are you using for flow control? Hardware (CTS/RTS, DTR/DSR), or software (XON/XOFF), or none? If hardware, then are you sure the signals are being asserted properly, and recognized by the other end? What about cables? What is the length of your cables? Are you using twisted-pair? If software, then at your data rates that could indeed be a problem.