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Forum: Kernel

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

  1. kernel headers

    hello am using fedora 12 . i have installed kernel-devel package but still the kernel headers are not available at /lib/moudles/2.6.31.***/build: ...

    Started by rakeshkumar, 02-09-2010
    • Replies: 5
    • Views: 2,499
    02-11-2010 Go to last post
  2. Red face finding unix datagram queue in kernel

    hi all.. I need to reverse the order of recvfrom() (userspace) command (turning the packet queue to a stack or something like that) meaning: if...

    Started by biobizz, 02-09-2010
    • Replies: 3
    • Views: 1,019
    02-10-2010 Go to last post
  3. kernel socket clos and re-opened - how to?

    We have an embedded kernel module that opens a listening socket, and then calls accept() and establishes a connection, then the far end closes the...

    Started by douglaskbell, 02-10-2010
    • Replies: 0
    • Views: 705
    02-10-2010 Go to last post
  4. Need help with compiled kernel

    I have tried compiling my own kernel, version 2.6.32.7 from kernel.org. I ran a defconfig and then selected options from menuconfig. After compiling...

    Started by CrystalKaeru, 02-10-2010
    • Replies: 0
    • Views: 682
    02-10-2010 Go to last post
  5. irq_disable

    irq_disable is causing trouble to my kernel code. How do you suggest to tackle it? it hangs the code....

    Started by ngandhi, 02-09-2010
    • Replies: 1
    • Views: 2,233
    02-09-2010 Go to last post
  6. what does this error mean? new one

    Kernel Module is in use.... what does it mean when the compiler gives this error and what causes the error?

    Started by ngandhi, 02-09-2010
    • Replies: 5
    • Views: 931
    02-09-2010 Go to last post
  7. Global variables in multi-file device driver

    Hi, I am writing a Linux Device driver for 2.6 kernel (for the first time). There is plenty of code so I decided to split it into 2 files. I have...

    Started by agaurav, 02-08-2010
    • Replies: 2
    • Views: 2,015
    02-09-2010 Go to last post
  8. what does this error mean?

    kernel module does not exist.... what does this error message mean? I have to reboot everytime I get this and the error goes away. I am lookin for a...

    Started by ngandhi, 02-08-2010
    • Replies: 1
    • Views: 834
    02-09-2010 Go to last post
  9. device driver - problem while reading cascaded symlinks

    Hello I have a strange problem with a device driver. Let me describe the problem: There is symlink, L1 and it shows another symlink, L2 and L2...

    Started by xyzt, 02-08-2010
    • Replies: 0
    • Views: 866
    02-08-2010 Go to last post
  10. networking functions not in kernel

    select() and shutdown() and SOCK_NOBLOCK don't compile in a kernel module build. Are they renamed?

    Started by douglaskbell, 02-05-2010
    • Replies: 6
    • Views: 1,076
    02-08-2010 Go to last post
  11. Lightbulb How the first console driver output text to monitor?

    Hi, All: How the first console driver output text to monitor? How could the DUMMY vga_con.con_putcs() realize the output? ...

    Started by gfz2004xy, 02-08-2010
    • Replies: 0
    • Views: 1,126
    02-08-2010 Go to last post
  12. Smile Which is the actual console driver used by printk function? (x86, 32bit)

    Hi All: Which is the actual console driver used by printk function? (x86, 32bit) When boot the kernel, the printk output message...

    Started by gfz2004xy, 02-05-2010
    • Replies: 5
    • Views: 1,926
    02-08-2010 Go to last post
  13. Low speed for PCI express driver

    Hi, I am currently writing a PCI-express driver for a lab-PCIcard with a lots of memory on it. The driver should be used to access the memory and...

    Started by orback, 02-05-2010
    • Replies: 3
    • Views: 3,269
    02-07-2010 Go to last post
  14. how is 'sleep()' and rand() done in kernel module?

    I'm getting "warning: implicit declaration of function 'sleep' and 'rand'. How can I track elapsed time (seconds, or milliseconds) in the kernal?...

    Started by douglaskbell, 02-01-2010
    • Replies: 9
    • Views: 15,351
    02-07-2010 Go to last post
  15. how to do sched_yield() in the kernel?

    How is a sched_yield() done in a kernel module? The problem is that the kernel module is sending TCP out, but the thread never yields to allow...

    Started by douglaskbell, 02-02-2010
    • Replies: 2
    • Views: 3,620
    02-07-2010 Go to last post
  16. SCTP client implementation in kernel space

    I want to make a simple SCTP client server module in kernel space. I used Fedora core 6 (kernel 2.6.18.1) and installed lksctp 1.0.6. I run the...

    Started by Jinkle Wei, 10-24-2007
    • Replies: 3
    • Views: 3,340
    02-06-2010 Go to last post
  17. Is there a way to view processes weight values

    Hi, I am working on a school project which involves manipulating the timeslice allocated to processes. I know I can adjust the process priorities...

    Started by colinragoo, 02-05-2010
    • Replies: 2
    • Views: 728
    02-06-2010 Go to last post
  18. how to detect TCP disconnection

    How is loss of a TCP connection detected, and handled so that another connection can be made? We have an embedded Linux kernel module that listens...

    Started by douglaskbell, 02-05-2010
    • Replies: 0
    • Views: 1,222
    02-05-2010 Go to last post
  19. [SOLVED] 2.6.30 compilation problem

    hi i am using fedora 12 with kernel version 2.6.31 i have downloaded kernel 2.6.30 and when untar and compile it make menuconfig make and...

    Started by rakeshkumar, 02-05-2010
    • Replies: 2
    • Views: 840
    02-05-2010 Go to last post
  20. PCI Device Driver

    Hi, I am writing a PCI device driver. After I load (insmod) my driver, kernel seems to create a link in /sys/bus/pci/devices 0000:06:00.0 ->...

    Started by jxu1106, 02-03-2010
    • Replies: 1
    • Views: 1,514
    02-03-2010 Go to last post

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