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Forum: Kernel

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

  1. device write() system calls

    Hi All, How does the write() system call work if it's writing it to a device port and how would I know if the data is being sent immediately and...

    Started by hanku, 05-10-2006
    • Replies: 7
    • Views: 16,534
    10-30-2008 Go to last post
  2. Block Device driver in User mode

    Hi, I want to write a block device driver in user mode so that the read and write calls from the FileSystem comes to user mode component than a...

    Started by tarrot, 10-30-2008
    • Replies: 0
    • Views: 3,142
    10-30-2008 Go to last post
  3. location of libc code

    hi all I want to find where the functions of libc are located. When we call "open" from an application, it is libc open function which calls...

    Started by siddhi, 10-30-2008
    • Replies: 0
    • Views: 2,121
    10-30-2008 Go to last post
  4. What kind of driver?

    Hi, The company I work for has created a baseboard for a Computer On Module. On the baseboard is a little microprocessor that talks to the COM via...

    Started by Transpread, 10-30-2008
    • Replies: 0
    • Views: 694
    10-30-2008 Go to last post
  5. Problem after kernel compilation

    Hi all, I have a workstation that support SATA drives. I install Linux(in "Compatible" mode) OS with 2.6.18 kernel and upgrade it to 2.6.27 by...

    Started by alex1983-0112, 10-29-2008
    • Replies: 0
    • Views: 745
    10-29-2008 Go to last post
  6. Module not cleanly unloaded?

    Hi all, I have a moderately sized module, which has the following: registers a misc_device and on exit, deregisters it. Of late When I rmmod...

    Started by prasadae31, 10-29-2008
    • Replies: 0
    • Views: 702
    10-29-2008 Go to last post
  7. How to detect ip change

    I'm doing some kernel module programming. What I am considering is how to detect if the ip of the host is changed. I would prefer not to try the...

    Started by LegolasV, 08-05-2005
    • Replies: 2
    • Views: 4,597
    10-28-2008 Go to last post
  8. Cool Why are drivers built into the Linux kernel?

    Hi, this is a question from someone new to the workings of Linux. Why are the drivers built into the kernel? Why are they not "pluggable" or...

    Started by aidave, 10-27-2008
    • Replies: 4
    • Views: 2,629
    10-28-2008 Go to last post
  9. Need help on making a decision on drivers

    Can someone help me in making a decision. I am trying out one thing - to encrypt the data that is written to external USB storage device ONLY. I...

    Started by vlksskr, 10-27-2008
    • Replies: 0
    • Views: 717
    10-27-2008 Go to last post
  10. calling sync from kernel

    hi i am kind of stuck up with this situation. how do i call sync from kernel without jumping out to user space. kernel libs dont recognise sync...

    Started by wildkrishh, 10-27-2008
    • Replies: 0
    • Views: 915
    10-27-2008 Go to last post
  11. Does klist_iter_exit delete the entry from list??

    (Sorry if this is a double-post -- don't know what happened to the first one.) As I read klist.c, calling klist_iter_exit to close an iteration...

    Started by jcrowley3, 10-26-2008
    • Replies: 1
    • Views: 1,006
    10-27-2008 Go to last post
  12. wait_event_interruptible and multithreading

    Hi, I'm pretty new to writing linux device drivers and I'm a little confused about the wait_event_interruptible function in the Linux Kernel....

    Started by nickgillett, 10-25-2008
    • Replies: 0
    • Views: 5,606
    10-25-2008 Go to last post
  13. memory management and task structs

    Once a thread terminates, does anyone know where the call is to free memory used by that task struct in the slab allocator? Thanks

    Started by Captain Pierce, 10-24-2008
    • Replies: 2
    • Views: 1,558
    10-24-2008 Go to last post
  14. Linux not booting with seagate harddisk

    Dear all We are using on Montavista linux 3(kernel version 2.4.18_mvl30, GCC version 3.2.1) for our product powered with Motorola power pc...

    Started by raghatns, 10-24-2008
    • Replies: 0
    • Views: 795
    10-24-2008 Go to last post
  15. kerenel addess space

    I have following understanding, please correct it if it is wrong. 1) kernel has direct mapping for first 896 MB of RAM. 2) kernel sets up the page...

    Started by matt_kleviar, 10-09-2008
    • Replies: 6
    • Views: 1,347
    10-23-2008 Go to last post
  16. Exclamation filtering i/o at block layer

    Hi does anybody tell me how bio structure of kernel is used? I want to capture i/o request at block layer...if is there any source code available...

    Started by npchanda, 10-23-2008
    • Replies: 0
    • Views: 915
    10-23-2008 Go to last post
  17. TSC value differs across multi-core in recent kernel

    My machine has an AMD Opteron dual-core. In order to maintain a high-accuracy timer, I wrote a program to read TSC (Timestamp Clock) value. The TSC...

    Started by George Meng, 10-22-2008
    • Replies: 0
    • Views: 1,455
    10-22-2008 Go to last post
  18. Upgraded to kernel 2.6.27 - does not boot

    I have updated my kernel to version 2.6.27. But now my computer does not boot. No error message, last line says: pci 0000:00:00.0: Enabling HT MSI...

    Started by soccerjonp, 10-16-2008
    • Replies: 3
    • Views: 1,640
    10-22-2008 Go to last post
  19. How to look how many kernel threads running on linux machine

    Hi All, I fi need to know how many threads and which threads running on linux machine? Is there any command to look those threads? As well as...

    Started by venkatb18, 10-21-2008
    • Replies: 2
    • Views: 7,730
    10-22-2008 Go to last post
  20. thread scheduling

    I read that I can achieve soft real time performance using the SCHED_FIFO policy.The priorities possible are from 1 -99 (0 being the priority of...

    Started by mandar.tigga, 08-10-2006
    • Replies: 1
    • Views: 4,507
    10-22-2008 Go to last post

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