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Forum: Kernel

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

  1. 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: 466
    08-15-2012 Go to last post
  2. 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: 690
    08-12-2012 Go to last post
  3. 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: 1,528
    08-12-2012 Go to last post
  4. 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: 510
    08-11-2012 Go to last post
  5. 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: 580
    08-11-2012 Go to last post
  6. 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: 1,814
    08-09-2012 Go to last post
  7. 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: 451
    08-08-2012 Go to last post
  8. 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: 1,702
    08-06-2012 Go to last post
  9. 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: 728
    08-06-2012 Go to last post
  10. 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: 1,452
    08-06-2012 Go to last post
  11. Question Save data/config from the Kernel

    Hi, I'm working on a battery driver. And ran into the need to save configuration and other variables to a disk, so the driver can reload it, and...

    Started by mmaaxx, 07-27-2012
    • Replies: 1
    • Views: 397
    08-04-2012 Go to last post
  12. Extract kernel headers from kernel sources

    Hello, I compiled a kernel from vanialla sources and now I'd like to provide someone else the kernel headers like you can find them in /usr/src/...

    Started by FabianS, 08-01-2012
    • Replies: 1
    • Views: 790
    08-01-2012 Go to last post
  13. Exclamation Changing libc/ld (m)mapping in process address space

    Apologies if not the correct zone to put this question. I'm trying to load libc/ld much lower in the process address space... I'm trying to...

    Started by raj.aprilfool, 08-01-2012
    • Replies: 0
    • Views: 512
    08-01-2012 Go to last post
  14. nice() is not nice to my app..

    Hey guys, I'm working on an Embedded Linux kernel 2.6.36.4. This machine runs a main utility that interacts with the kernel. Let's call this...

    Started by thehadar, 07-31-2012
    • Replies: 1
    • Views: 455
    08-01-2012 Go to last post
  15. [SOLVED] How to get the number of elements in a SystemV queue

    Hello everybody, I'm trying to create a function that takes a pointer of a task_struct process in input and returns the number of elements in a...

    Started by droms, 07-26-2012
    • Replies: 2
    • Views: 440
    07-27-2012 Go to last post
  16. [SOLVED] Differnce between module and build in code?

    Hi guys, I am building my own driver for Linux 3.0. It already works as a module, when I load it manually or at startup automatically. But when I...

    Started by FabianS, 07-26-2012
    • Replies: 3
    • Views: 570
    07-26-2012 Go to last post
  17. High precision timer in kernel module

    Hello, I am building a kernel dirver for a backlight control. The problem is that the backlight driver expects a PWM signal but it is connected...

    Started by FabianS, 07-25-2012
    • Replies: 6
    • Views: 994
    07-26-2012 Go to last post
  18. [SOLVED] How to read the file system type of a partition in kernel space

    There's some ways to read the types of file system in each partition in user space, like blkid. Now I want to transplant it under kernel space. By...

    Started by livevil, 07-12-2012
    • Replies: 2
    • Views: 446
    07-25-2012 Go to last post
  19. Question Compiling error when compiling link kernel 3.3 for MPC83XX

    Hi, I am trying to build kernel for my powerpc MPC83XX board. Starting linux kernel version 3.3.0, I am getting this build error; AS ...

    Started by aflesch, 07-23-2012
    • Replies: 4
    • Views: 901
    07-25-2012 Go to last post
  20. kernel log using dmesg

    I was asked to do the following, but I have no clue what to do because I am new in Linux world: "Could you provide: kernel log(using "dmesg") for...

    Started by ivan2116, 07-23-2012
    • Replies: 2
    • Views: 672
    07-23-2012 Go to last post

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