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Forum: Kernel

Request help with Linux kernel compilation, theory, programming, or other kernel related issues

  1. latency spikes with SCHED_RR (rhel 6.3)

    Recently a crucial low latency application was moved to a new server and it is suffering from sporadic huge latency spikes. We think it might be...

    Started by kernelexplorer, 03-12-2013
    • Replies: 2
    • Views: 1,904
    03-18-2013 Go to last post
  2. kernel panic - not syncing no init found. try passing init= option to

    Dear all, I am engineering student.I am trying to build linux distro for programming enivironment from debian based distro. I can succesfull...

    Started by new2linus, 03-02-2013
    • Replies: 7
    • Views: 7,421
    03-12-2013 Go to last post
  3. kernel panic error(debian based distro)

    Dear All, Sorry to cross post..My previous thread was marked as solved and I am not able to change prefix..So I am starting new thread..Sorry.. ...

    Started by new2linus, 03-11-2013
    • Replies: 1
    • Views: 685
    03-11-2013 Go to last post
  4. Huge lock contention when doing I/O

    Hi, I have a Fedora 16 system with Intel i7 970 processor, 12GB RAM, which seems sometimes to succumb to incredibly bad lock contention problems....

    Started by mcgd, 03-07-2013
    • Replies: 5
    • Views: 1,344
    03-09-2013 Go to last post
  5. CFS and Processor Affinity

    WIth the O(N) scheduler it is well documented that there is separate run queue for each processor. Documentation for CFS only refers to a single...

    Started by kmand, 02-27-2013
    • Replies: 2
    • Views: 1,421
    03-06-2013 Go to last post
  6. no ioctl command

    While running the function in kernel space kernel_sock_ioctl(socket, FIONBIO, &on) it returns error ENOIOCTLCMD 515 /* No ioctl command */ ...

    Started by rescue, 03-06-2013
    • Replies: 0
    • Views: 929
    03-06-2013 Go to last post
  7. Linux on GRUB Prompt

    Hi I have a machine running Centos 6.2 32 bit with two harddisks with RAID-1. First partition is /boot. Second is LVM for /home and Swap. It...

    Started by zulqarnainhabib, 03-06-2013
    • Replies: 2
    • Views: 1,370
    03-06-2013 Go to last post
  8. [SOLVED] Specifying Physical Memory Addresses

    Hello Linux Community, I am working on a kernel (3.4.3) and trying to figure out if I can specify (to some degree) the physical memory addresses a...

    Started by Misiu10, 02-27-2013
    • Replies: 8
    • Views: 1,549
    03-05-2013 Go to last post
  9. r6040 net-driver on new kernels not work(3.X.X)

    Hello. I have a problem. I have a motherboard with processor RDC8610. As PHY-chip used tlk100 (Texas Instruments). tlk100 uses "Generic...

    Started by Yaroslav, 03-05-2013
    • Replies: 2
    • Views: 1,231
    03-05-2013 Go to last post
  10. Which process gets spinlock when multiple processes are trying to get

    Hi, I am trying to understand the spinlock concept. But I have a question on it, if more than one process is trying to get a spinlock which process...

    Started by tutika, 03-01-2013
    • Replies: 5
    • Views: 1,783
    03-05-2013 Go to last post
  11. Question serial callback function

    Hi, i have a project where i have to read incoming serial-data from an other kernel-module. Is it possible to register a callback-function in the...

    Started by core_, 10-29-2012
    • Replies: 1
    • Views: 786
    03-05-2013 Go to last post
  12. pci problem - 2 BARs given same address

    Hi I am using an imx6 SOC by freescale and a 3.0.35 kernel created by them. When plugging in a pci device (which works perfectly on intel), I can see...

    Started by mukiwa, 02-05-2013
    • Replies: 1
    • Views: 643
    03-02-2013 Go to last post
  13. Question How to limit or reset PIDs

    Hi, Say I have a C program that does: While(1){system(“ls”);} The system() call creates a new PID at each call. Therefore, when the...

    Started by svc1, 02-27-2013
    • Replies: 1
    • Views: 668
    03-01-2013 Go to last post
  14. Smile how to get a process status according to process name in the kernel?

    Hi, I am writting a kernel module which needs to get a process status(running or not) according to its name(I know the name of the executive file)...

    Started by liudonghua123, 02-26-2013
    • Replies: 1
    • Views: 1,009
    03-01-2013 Go to last post
  15. Wink how to check a port is listening in the kernel?

    Hi I am using Android 4.2 which the kernel is 3.0. So I post my question here. And I want to know how can I get the status of a port in the kernel...

    Started by liudonghua123, 02-26-2013
    • Replies: 1
    • Views: 695
    03-01-2013 Go to last post
  16. F17 freezing apparently caused by kernel.

    Hi I am using Fedora 17 on an Asus M2N68-AM PLUS motherboard, with AMD Phenom 9600 Quad and 4 GB RAM I have posted this on the Fedora Forum -...

    Started by JGSheppard, 02-21-2013
    • Replies: 1
    • Views: 863
    02-22-2013 Go to last post
  17. Thumbs up Video Issues with Linux Kernel Build???

    Don't know if this is a video issue or a boot issue. Have built a Linux Kernel for a custom BSP based on the Freescale i.MX6 ARM processor. The...

    Started by pauldemet, 02-18-2013
    • Replies: 1
    • Views: 1,683
    02-21-2013 Go to last post
  18. devtmpfs: error mounting -2

    hi i need help i compile the kernel 3.4 with gcc , when i run the uImage kernel on cubox (solid-run) it appers error : VFS: Mounted root...

    Started by esmairi, 02-16-2013
    • Replies: 2
    • Views: 7,584
    02-19-2013 Go to last post
  19. Allocate sk_buff pool from specific address range?

    Is it possible to instruct the kernel to allocate all its sk_buffs from a specific address range? I have a system where part of the physical memory...

    Started by jarango, 02-18-2013
    • Replies: 0
    • Views: 859
    02-18-2013 Go to last post
  20. Lightbulb adapting linux kernel for future multi core architecture

    Dear Sir, I am mtech student of IITkgp,India working on a project i.e. adapting linux kernel for scalable multi core architecture, I found that...

    Started by ranjuchhatna, 02-02-2013
    • Replies: 2
    • Views: 1,122
    02-11-2013 Go to last post

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