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Forum: Kernel

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

  1. DRM troubles with kernel >=2.6.33

    since 2.6.33 while i turn KMS on all opengl programms is freezing with backtrace like this: ~/workspace/uirs/uirs/build $ gdb `which glxgears`...

    Started by tonn, 09-17-2011
    • Replies: 2
    • Views: 883
    09-21-2011 Go to last post
  2. Wrong command number is received by ioctl

    Hi, I am writing a device driver with an ioctl in driver module. When I execute ioctl from user space and try to access the driver, the command...

    Started by rainbow82, 09-15-2011
    • Replies: 4
    • Views: 2,146
    09-21-2011 Go to last post
  3. Fast LZ decompression

    I know there are different options in the kernel for compression, such as LZO and GZIP. I haven't seen anything about Fast LZ. Does anyone know if...

    Started by GGlaser, 09-20-2011
    • Replies: 0
    • Views: 1,366
    09-20-2011 Go to last post
  4. Error Attaching Device Data :(

    Hi am new to linux.I am trying to load a kernel module but I get a No suck Device error and when I dmesg, I findh the following error.What should I...

    Started by knightraj007, 09-15-2011
    • Replies: 7
    • Views: 2,392
    09-16-2011 Go to last post
  5. insmod: error inserting 'video_server.ko' no such device

    Hi, I am new to Linux, and I have been trying to insert a kernel module that I have complied but I get the following error. ---insmod: error...

    Started by knightraj007, 09-14-2011
    • Replies: 0
    • Views: 1,853
    09-14-2011 Go to last post
  6. Error coming in Oracle BRM during starting the pipeline.

    When i was starting the pipeline in Oracle BRM, i got an error: Pipeline Server / Version 7.3 10092 started at 08.09.2011 13:23:42. Copyright...

    Started by sourabhsamar, 09-08-2011
    • Replies: 5
    • Views: 2,118
    09-14-2011 Go to last post
  7. Unhappy Unmounting Detachable devices(eSATA,USB storage) in linux

    A detachable device like eSATA,USB can be abruptly removed (by simply pulling the plug). Then, if there are open file handles on a partition , then...

    Started by solid_state, 09-07-2011
    • Replies: 7
    • Views: 2,458
    09-13-2011 Go to last post
  8. How to declare C structure for assembly file

    Hi, The below structure is declared in (arch/arm/include/asm/smp.h) header file. struct secondary_data { unsigned long pgdir; ...

    Started by tkarthi85, 09-13-2011
    • Replies: 1
    • Views: 1,378
    09-13-2011 Go to last post
  9. Post A query related to the sctp in linux

    Hi, I am facing a problem and i want to know what is the behavior of the file /proc/net/sctp/assoc. I want to know that /proc/net/sctp/assoc...

    Started by vimal_itsu, 09-13-2011
    • Replies: 0
    • Views: 825
    09-13-2011 Go to last post
  10. Unhappy A question about kvm module

    Hello there, I am not good at tracing code really, if anyone can give me some advice that will be very helpful.:( A qemu process in user space...

    Started by NonerKao, 09-10-2011
    • Replies: 0
    • Views: 955
    09-10-2011 Go to last post
  11. store a block device information in sb_info struct of ext4 file system

    Hi, I have created an image file and mounted it with ext4 file system. I want to store its information in sb_info structure of ext4 file system...

    Started by shwety1085, 09-06-2011
    2 Pages
    1 2
    • Replies: 11
    • Views: 1,987
    09-09-2011 Go to last post
  12. x86_64: long mode -> compatibility mode -> protected mode

    Hello, In x86_64, how would one go about writing kernel code that takes the kernel down to compatibility mode, then to protected mode, run some...

    Started by wshin, 09-03-2011
    • Replies: 1
    • Views: 1,933
    09-06-2011 Go to last post
  13. Lightbulb Real-Time-Kernel-Event-Handler

    Hi everyone, I'm a computer engineer student from Berlin and I'm writing my final theses about a Real-Time-Kernel-Event-Handler on a Debian 2.6...

    Started by JOJBerlin, 09-02-2011
    • Replies: 5
    • Views: 1,040
    09-06-2011 Go to last post
  14. How does device driver know to which process to pass retrieved data?

    I will explain my question. Say DMA is not used in following example. Say process 1 and process 2 simultaneously open the same device and issue a...

    Started by Marnix, 09-03-2011
    • Replies: 0
    • Views: 663
    09-03-2011 Go to last post
  15. Trying to create a race condition.

    Hello all. I'm playing around with the locking mechanisms within the Linux kernel. I've got a global variable which gets incremented every time a...

    Started by phil128, 09-01-2011
    • Replies: 2
    • Views: 1,014
    09-03-2011 Go to last post
  16. Need guidance/suggestion in writing BSP afresh for a new board

    Hello to everyone I am a beginner.I got hold of a Standard development board with ARM processor.Now I want to write BSP for that board.Need some...

    Started by wjkd64, 09-03-2011
    • Replies: 0
    • Views: 744
    09-03-2011 Go to last post
  17. Problem in boot of new kernel

    Hi; I have ubuntu 10.04 on VirtualBox and get kernel source 2.6.39-3 from and compiled it. After boot, I see this message: The disk...

    Started by Fered, 08-19-2011
    • Replies: 2
    • Views: 1,169
    09-03-2011 Go to last post
  18. USB hub driver

    HI, I want to write a usb hub driver, can anybody please give me details how to start it(sample code). thnx

    Started by rajkumarmadhani, 08-19-2011
    • Replies: 1
    • Views: 1,231
    09-03-2011 Go to last post
  19. Kernel build option for (ATA) TRIM support

    Hi Community, since kernel 2.6.33 the ATA TRIM command should be supported but I can't find the involved kernel build option for that feature. I...

    Started by prosys, 08-25-2011
    • Replies: 1
    • Views: 968
    09-03-2011 Go to last post
  20. Confusion regarding TLB flush

    Hi All, I as trying to track down sources of TLB flushes (x86_64, kernel version 2.6.31). In the process I found something interesting that I...

    Started by ArkaB, 09-03-2011
    • Replies: 1
    • Views: 1,742
    09-03-2011 Go to last post

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