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Forum: Kernel

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

  1. mount syscall usage

    Can anyone help me to know how to use mount and unmount syscall for mounting,unmounting root file system from my process.RFS is in /dev/sda1...

    Started by Shibupthomas, 01-10-2011
    • Replies: 0
    • Views: 630
    01-10-2011 Go to last post
  2. [SOLVED] hello world module problem

    Hello friends! I'm following the guide "The linux kernel module programming guide". I'm trying with the hello world mode, wich code is this: ...

    Started by jesusitoLinux, 01-05-2011
    • Replies: 4
    • Views: 1,111
    01-08-2011 Go to last post
  3. mprotect like functionality

    I need to somehow impliment mprotect functionality that isn't restricted to PAGESIZE (4k). I need to be able to protect an area of memory, defined...

    Started by dtracy00, 01-07-2011
    • Replies: 0
    • Views: 576
    01-07-2011 Go to last post
  4. JFFS2 error: jffs2_build_inode_pass1:appears to be a hardlink

    Hi all I am facing one bug while booting my arm based board with jffs2 filesystem. Is booting fine, but RFS throwing error as follows. ...

    Started by sjremya, 01-05-2011
    • Replies: 0
    • Views: 1,547
    01-05-2011 Go to last post
  5. TASK_RUNNING undeclared

    Hello friends! I am developing using a sytem calls and macros. When I use TASK_RUNNING and compile I get this error message: ...

    Started by jesusitoLinux, 12-25-2010
    • Replies: 5
    • Views: 1,024
    01-04-2011 Go to last post
  6. Question shmget vs creating a file...

    Hi, I was just trying to get two processes to share some data.... I just wanted to know if there is any advantage of using shmget vs creating a...

    Started by dasman, 01-03-2011
    • Replies: 1
    • Views: 526
    01-03-2011 Go to last post
  7. Problem Compiling the Kernel

    when i use the make command i get the error ]# make oldconfig make: *** No rule to make target `missing-syscalls'. Stop. make: *** Error 2

    Started by techieanupam, 12-30-2010
    • Replies: 5
    • Views: 1,411
    01-03-2011 Go to last post
  8. [SOLVED] jffs2 warning while booting CLEANMARKER node found at ....

    Hi all I have created a root file system image (jffs2) using following command mkfs.jffs2 -r <rfs_source> -p -o <rfs_image.jffs2> I...

    Started by sjremya, 12-14-2010
    • Replies: 2
    • Views: 2,442
    01-03-2011 Go to last post
  9. Bottom halves

    Hi All, Could you please clarify my doubts related to softirqs and tasklets. While googling I observerd below points about softirqs and tasklets....

    Started by kumar1, 12-23-2010
    • Replies: 1
    • Views: 1,785
    01-02-2011 Go to last post
  10. Question edit kernel source file

    is it nesscary to recompile the complete kernel if i simply want to add one printk statement in some C file in the kernel source code ? example in...

    Started by akshaybahetii, 12-28-2010
    • Replies: 2
    • Views: 1,161
    01-02-2011 Go to last post
  11. Accessing device over PCI (libpci related)

    Hi, I am working on an embedded system connected to a Linux PC host over PCIe. Right now, in the devel phase, I often need to power off and power...

    Started by agaurav, 12-28-2010
    • Replies: 3
    • Views: 1,689
    12-30-2010 Go to last post
  12. Hard is not detecting in etch

    I am trying to install the debian etch distribution in IBM X3650 M3. The hard disk is not detecting properly. 4 x 500GB 10K 6GBps NL SAS 2.5...

    Started by kuppusamy, 12-29-2010
    • Replies: 1
    • Views: 752
    12-30-2010 Go to last post
  13. Kernel not loading firmware.

    Hi. So finally registered in Linuxforums. I've an ATI RS690m which requires firmware loaded to work properly and thus churn sustainable FPS. On...

    Started by dE_logics, 12-22-2010
    • Replies: 0
    • Views: 786
    12-22-2010 Go to last post
  14. Difference between different memory types

    hey guys i m confused totally about the memory management in operating systems. the tutorial at tldp.org under memory management under section...

    Started by techieanupam, 12-16-2010
    • Replies: 1
    • Views: 1,058
    12-21-2010 Go to last post
  15. Converting time_t to unsigned int

    I need to convert 'time_t' to "unsigned int". I am using x86 system and have no option of using 64bit systems. I just need to be able to set my...

    Started by sudeepkc@pookmail.com, 07-17-2008
    • Replies: 1
    • Views: 8,234
    12-14-2010 Go to last post
  16. System RAM relocation to address higher than 4G

    Hi, I have running 2.6.26. Linux on x86 system that has the following BIOS mappings: BIOS-provided physical RAM map: BIOS-e820:...

    Started by jacks76, 12-08-2010
    • Replies: 6
    • Views: 849
    12-13-2010 Go to last post
  17. Config 2.6.36.1 kernel (from kernel.org) using CentOS 5.4 x86_64 kernel .config

    I have installed CentOS 5.4 x86_64 in my pc. The kernel version is 2.6.18-164.el5 (uname -r). I want to compile a custom kernel (2.6.36.1) from...

    Started by whitewolf573, 12-10-2010
    • Replies: 2
    • Views: 2,114
    12-11-2010 Go to last post
  18. Empty Flash Message in Kernel, OneNand Flash and JFFS2 File System

    Hi, I have ported linux kernel 2.6.19-1 on PXA270 ARM Xscale platform. We are using OneNand Flash in our product. Sometimes I see messages...

    Started by sumitv, 05-27-2010
    2 Pages
    1 2
    • Replies: 13
    • Views: 6,881
    12-10-2010 Go to last post
  19. Stop at "xscale iwmmxt coprocessor detected"

    Hi, I run a compiled 2.6.29 kernel in my target board, but it stops after printing "XScale iWMMxt coprocessor detected." Who knows why?

    Started by keblues, 12-09-2010
    • Replies: 2
    • Views: 1,213
    12-10-2010 Go to last post
  20. Performance hit by creating new thread

    Will there be any performance hit on the running process by spawning many threads? Somebody please explain about the scheduling policy of a thread.

    Started by arunalapati, 12-01-2010
    • Replies: 6
    • Views: 1,392
    12-09-2010 Go to last post

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