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Forum: Kernel

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

  1. [SOLVED] Driver compiling in 3.5.2

    I am moving a driver from 3.1.2 to latest stabe (3.5.2). The driver gets compiled in 3.1.2 but throws errors in the latest one. Any help is...

    Started by prashanth_s, 08-24-2012
    • Replies: 1
    • Views: 2,416
    08-27-2012 Go to last post
  2. Compile Kernel 3.5.2 on Ubuntu 12.04 with Kernel 3.2.0-29-generic-pae?

    Hi, all: A naive question: First, my environment: Ubuntu 12.04, with kernel 3.2.0-29-generic-pae peijia:~$ uname -a Linux peijia...

    Started by jiapei100, 08-23-2012
    • Replies: 1
    • Views: 2,476
    08-26-2012 Go to last post
  3. attach preempt_notifier to user process in linux

    I am needing to identify whether a user process was ever preempted somehow, I understand we have hooks in preempt.h and sched.c which allow us to...

    Started by maheshma, 08-14-2012
    • Replies: 3
    • Views: 569
    08-25-2012 Go to last post
  4. The performance governor for cpufreq doesn't seem to behave as adverti

    The kernel in use: 3.2.0-23-generic on Ubuntu 12.04LTS For example, I issue the following command: sudo cpufreq-set -c 0 -g performance Then I...

    Started by mgoldshteyn, 08-23-2012
    • Replies: 0
    • Views: 460
    08-23-2012 Go to last post
  5. Linux on QEMU stucks at "Uncompressing Linux... done, booting the ker"

    I built linux kernel 2.6.33.7 and 2.6.38 image using armtool chain 2011 and tried to run it on qemu 15.0. I took root file system from...

    Started by rupeshkp, 08-22-2012
    • Replies: 0
    • Views: 817
    08-22-2012 Go to last post
  6. Confused about semaphores

    Hi, I am trying to allow a kernel thread to sleep while it waits for a buffered write to complete. Essentially I was trying: Created a: ...

    Started by rjmarshall17, 08-20-2012
    • Replies: 2
    • Views: 440
    08-20-2012 Go to last post
  7. Question Update first before compiling a new kernel?

    Hi, Tried to search but can't easily find the answer, maybe this has been asked before. Current kernel is 2.6.18, planning to compile to the...

    Started by htan68, 08-17-2012
    • Replies: 1
    • Views: 395
    08-17-2012 Go to last post
  8. multiple independant multicast routing instances

    I worte a multicast proxy (mcproxy - mcproxy.realmv6.org), some time ago. The Proxy is using the Linux Kernel routing tables and supports multiple...

    Started by Aufgang001, 08-08-2012
    • Replies: 3
    • Views: 963
    08-16-2012 Go to last post
  9. [SOLVED] Using msgctl() function in the kernel side

    Hello, I have already used the function msgctl() in user space without any problem, in order to obtain the number of messages in queue from its ID...

    Started by droms, 07-30-2012
    • Replies: 8
    • Views: 668
    08-15-2012 Go to last post
  10. system programming

    Hi I have some ideas about cpu scheduler program and I want to implement my own , but I dont know how to change its codes . 1 ) where can I find...

    Started by ajansketab, 08-15-2012
    • Replies: 1
    • Views: 483
    08-15-2012 Go to last post
  11. Wink wraplinux-build kernel error

    :confused: Hi everyone, I want to build a 2.6.18-rc2 kernel iamge by wraplinux. I make the bzImage; and make the initramfs.cpio.gz rootfs. But...

    Started by hanxiaodong, 08-14-2012
    • Replies: 1
    • Views: 476
    08-15-2012 Go to last post
  12. Blank Shadow File

    While trying telnet I got error message "no valid shadow password" I am using BusyBox v1.00 and giving command #cd etc && cat shadow I...

    Started by mjmatrix, 08-11-2012
    • Replies: 3
    • Views: 739
    08-12-2012 Go to last post
  13. Kernel/Why do i get Unhandled fault: imprecise external abort?

    I have this in kernel module: /*global scope declared*/ static char array={1,2,3,4,5,6,7,8,9,10}; and I have functions for open...

    Started by zozo1234, 08-08-2012
    • Replies: 2
    • Views: 1,632
    08-12-2012 Go to last post
  14. Issue with allocating dma memory pool on ppc 476

    Hi, I am fairly new to Linux device driver development and I am working on porting a device driver written for red hat Linux to work on Linux...

    Started by ankurm, 08-08-2012
    • Replies: 1
    • Views: 531
    08-11-2012 Go to last post
  15. How to switch from user mode to kernel mode in linux

    I'm learning about linux kernel but i don't understand how to switch from user mode to kernel mode in linux. how it work? could you give me some...

    Started by ngtrieuvi92, 08-11-2012
    • Replies: 1
    • Views: 596
    08-11-2012 Go to last post
  16. why online shrink is not supported in EXT4_IOC_RESIZE_FS ioctl?

    Hi, I referred EXT4_IOC_RESIZE_FS ioctl implementation in linux kernel ver 3.3.8. Online shrinking is not supported and the code is as below. ...

    Started by joshua2009, 08-03-2012
    • Replies: 1
    • Views: 1,900
    08-09-2012 Go to last post
  17. Virtual Thick Client

    Hi Guys I wanted to develop a kernel for my server. It will work in following way: * Notepad++ process is running on client(local data) w/o...

    Started by mitser, 08-07-2012
    • Replies: 4
    • Views: 474
    08-08-2012 Go to last post
  18. help with kernel panic in qemu (arm)

    hi, So i have been cross compiling a Linux kernel with a busy box file system and testing it with qemu. i am also building my own gcc cross...

    Started by larry7, 07-27-2012
    • Replies: 2
    • Views: 1,807
    08-06-2012 Go to last post
  19. mutex never fails

    Hi, I have tried in many ways to get the atleast once, but i never could do it. Plese help me in achieving that.

    Started by oxpac, 07-30-2012
    2 Pages
    1 2
    • Replies: 11
    • Views: 750
    08-06-2012 Go to last post
  20. Linux Kernel change 2.6.33 / 2.6.32 NFS mount

    I have determined that some part of the changes between Linux kernel 2.6.32 and 2.6.33 effected mounting NFS shares. It is definitely a kernel issue...

    Started by jeduffey, 06-19-2012
    • Replies: 6
    • Views: 1,507
    08-06-2012 Go to last post

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