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Forum: Kernel

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

  1. Memory Mapped File Corrupted on Shutdown

    I have a library that provides access to a shared file for several applications. It uses mmap(... MAP_SHARED ...) to create a mapping to the file...

    Started by jay214128, 1 Week Ago
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 525
    4 Days Ago Go to last post
  2. Using Qemu for completely new os

    Hi all, We are developing a custom os for e500v2 core. Using the cross compiler for power-pc. We have generated the build and tested on the actual...

    Started by techieanupam, 2 Weeks Ago
    • Replies: 1
    • Views: 211
    6 Days Ago Go to last post
  3. Uncompressed Kernel

    How do I build a kernel with no compression, such as : Gzip (KERNEL_GZIP) Bzip2 (KERNEL_BZIP2) LZMA (KERNEL_LZMA) XZ (KERNEL_XZ) LZO...

    Started by splash_wave, 1 Week Ago
    2 Pages
    1 2
    • Replies: 10
    • Views: 329
    1 Week Ago Go to last post
  4. Terminating 'init' during shutdown

    If the 'init' process ever terminates, there will be a kernel panic. (This can be most easily tested by setting init to eg. /bin/sh and then exiting...

    Started by Warp, 1 Week Ago
    • Replies: 3
    • Views: 127
    1 Week Ago Go to last post
  5. intrrupt service routine in "struct v4l2_subdev_core_ops" (V4L2)

    Hi All, I am discovering usage of struct v4l2_subdev_core_ops following Link: lxr.free-electrons.com/source/include/media/v4l2-subdev.h?v=3.2 In...

    Started by sukhoivietnam, 2 Weeks Ago
    • Replies: 0
    • Views: 137
    2 Weeks Ago Go to last post
  6. Crashdump problem

    Is this the place to ask for help installing crashdump on a Ubuntu server system?

    Started by brilyant, 2 Weeks Ago
    • Replies: 2
    • Views: 226
    2 Weeks Ago Go to last post
  7. Essential Kernel Features

    What linux kernel features are essential for popular programs to run? The only one I know is IPC. This is for my study of the smallest possible...

    Started by splash_wave, 3 Weeks Ago
    • Replies: 4
    • Views: 240
    3 Weeks Ago Go to last post
  8. ld: No symbol found for architecure x86_64

    I'm trying to make menuconfig the 3.18.1 Linux Kernel on OS X and it spits out ld: symbol(s) not found for architecture x86_64 clang: error: linker...

    Started by splash_wave, 3 Weeks Ago
    2 Pages
    1 2
    • Replies: 11
    • Views: 354
    3 Weeks Ago Go to last post
  9. Reg : Linux Traceback

    Hi All, I am working for a Networking company, where device is built upon Linux kernel. Normally we gets cases for device crash and we analyse...

    Started by Neo4891, 4 Weeks Ago
    • Replies: 1
    • Views: 284
    3 Weeks Ago Go to last post
  10. samsung-laptop module in UEFI

    Hi everyone, I'm new here and after searching the internet I found no good answer to this. I know that the samsung-laptop module is automatically...

    Started by argand, 12-17-2014
    • Replies: 4
    • Views: 346
    4 Weeks Ago Go to last post
  11. Why sys_writev() cannot be hooked in sys call table?

    I'm writing a security module that hooks system calls. I successfully hooked sys_ptrace so far but sys_writev causes the module to crash on Linux 3.2...

    Started by antoniocruz, 12-20-2014
    • Replies: 3
    • Views: 203
    12-20-2014 Go to last post
  12. Question Minimum compile required for /drivers/serial/serial_core.c

    Hi, I need to change the behaviour of serial_core.c for an embedded system. I have downloaded the kernel source tree 2.6.18 to my development...

    Started by Trajan, 12-17-2014
    • Replies: 1
    • Views: 212
    12-19-2014 Go to last post
  13. Permissions for executables using libraries

    If a program is owned by "fred", and accesses lib.so which is owned by "mark", what exactly happens within the system? Thanks

    Started by resetreset, 12-16-2014
    • Replies: 5
    • Views: 244
    12-17-2014 Go to last post
  14. Redirect I/O from one device to another - possible?

    If a program is writing to /dev/sda1 , and I want it to seamlessly write to /dev/sda2 without the program realising it, under OS control, ....is...

    Started by resetreset, 12-16-2014
    • Replies: 5
    • Views: 191
    12-17-2014 Go to last post
  15. Question [SOLVED] creating five device file using device_create but getting error?

    This is the code for a single major no five successive minor number with device file name. I'm trying to create but getting error. static int...

    Started by ganesh8977, 12-12-2014
    • Replies: 4
    • Views: 336
    12-16-2014 Go to last post
  16. Early IO memmap

    I need to be able to read an internal MCU register (GPIO access) early in the boot process. This needs to happen before paging_init() from the...

    Started by jay214128, 12-10-2014
    • Replies: 5
    • Views: 250
    12-15-2014 Go to last post
  17. [SOLVED] Get the root dir of a chrooted process in string format

    I run this in Linux 3.2 in a kernel module but get "rootdir: /" instead of the chroot directory which should be "rootdir: /chrootdir". char...

    Started by antoniocruz, 12-13-2014
    • Replies: 4
    • Views: 282
    12-14-2014 Go to last post
  18. rootfs changes after new built-in module?

    hello. i'm trying to learn more about linux. i want to experiment with built-in modules. i can build "my own" kernel, but it's the same as when...

    Started by pgib8, 12-10-2014
    • Replies: 0
    • Views: 172
    12-10-2014 Go to last post
  19. Is it possible to make a keylogger for Linux?

    ... what's involved, and how difficult is it, exactly? Thanks.

    Started by resetreset, 12-05-2014
    • Replies: 3
    • Views: 262
    12-09-2014 Go to last post
  20. Two Rate Three Color Marker support by Linux kernel

    Hello, Does anyone knows if rfc2698 (A Two Rate Three Color Marker) or rfc4115 (A Differentiated Service Two-Rate, Three-Color Marker with Efficient...

    Started by zismane, 12-07-2014
    • Replies: 1
    • Views: 224
    12-07-2014 Go to last post

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