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Forum: Kernel

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

  1. Unhappy Linux virtual subsystem

    Hi, I am trying to implement a mmap system call, so I went through the linux virtual memory subsystem concepts.:) I got to know about the 1GB kernel...

    Started by div123, 01-16-2009
    • Replies: 4
    • Views: 704
    01-21-2009 Go to last post
  2. disabling interrupts to approach RT performance?

    Please advise if this question is OT. (If so, where can I post it or read more about said topic?) I have an application that grabs frames from a...

    Started by CelticDaddio, 01-20-2009
    • Replies: 0
    • Views: 653
    01-20-2009 Go to last post
  3. Out of order data when performing R/W through mmaped memory

    Hello I'm writing a driver for a PCIe board. This board is configurable through IO memory regions, non-prefetchable, located at bars 0 and 1. I...

    Started by marc_ba, 01-20-2009
    • Replies: 1
    • Views: 619
    01-20-2009 Go to last post
  4. Want to make sure I have something right...

    I compiled a kernel following this guide How To Compile A Kernel - The Ubuntu Way - Page 2 | HowtoForge - Linux Howtos and Tutorials I'm left with...

    Started by SagaciousKJB, 01-11-2009
    • Replies: 1
    • Views: 503
    01-20-2009 Go to last post
  5. Kernel rebuild issue

    Follow the Kernel for Newbies on how to recompile the kernel. Made it through but when I reboot it does a couple of weird things 1) I get verbose...

    Started by ds1001, 01-13-2009
    • Replies: 1
    • Views: 579
    01-20-2009 Go to last post
  6. a question about copy_from_user/copy_to_user

    Hi,everyone I am newbie to linux kernel, I'm write ioctl function, the input argument is integer, kernel space need to use this integer argument...

    Started by IanWu, 01-19-2009
    • Replies: 2
    • Views: 3,815
    01-20-2009 Go to last post
  7. Signals question

    Hello, I read lately about the signals mechanism, and I have a couple of question that I couldn't find the answer to them. it would be great if...

    Started by yoyo2009, 01-18-2009
    • Replies: 0
    • Views: 485
    01-18-2009 Go to last post
  8. How to find your own file descriptor

    Hi everyone, I'm quite new to Linux module programming, however circumstance has me writing a socket module for interprocess communication (don't...

    Started by iluvlollipops08, 01-17-2009
    • Replies: 2
    • Views: 1,016
    01-17-2009 Go to last post
  9. A little help required

    I am currently working on taking a hard drive and putting a screen on it. The basic idea is so you will be able to view, edit, zip and unzip files...

    Started by Swinson, 01-01-2009
    3 Pages
    1 2 3
    • Replies: 22
    • Views: 2,117
    01-15-2009 Go to last post
  10. Page initialization

    I had a question regarding the page initialization. On a page fault to a page that has never been touched before the kernel under some conditions...

    Started by sidc7, 01-14-2009
    • Replies: 0
    • Views: 550
    01-14-2009 Go to last post
  11. How to write a keyboard driver?

    How to write a keyboard driver with interrupt driven? the platform is ARM and the interface is SRAMC with I/O mapped. What should my handler and read...

    Started by rkkcorleone, 01-13-2009
    • Replies: 0
    • Views: 672
    01-13-2009 Go to last post
  12. pl2303X

    Hi, I have 2.6.26 kernel on my debian and trying to use pl2303x device which is said to be different from 2303 and there exists patch for that but...

    Started by vnv, 01-07-2009
    • Replies: 2
    • Views: 2,591
    vnv
    01-13-2009 Go to last post
  13. Arrow kernel compile problem 2.6.27-gentoo-r7

    Hi, I compiled already two kernels on the new system ( pentium core duo E2000, 4 GB Ram, Biostar TF7150U-M7 Mainboard) but now I ran out of luck....

    Started by ikaros, 01-12-2009
    • Replies: 0
    • Views: 901
    01-12-2009 Go to last post
  14. Linux 2.6.17 -PCI interface-IRQ discrepency in sysfs and config space

    I'm writing a driver for a PCI based Dual UART controller and there is disparity in the IRQ line assignments I'm getting from sysfs (IRQ 169 ) and...

    Started by Sebefore, 01-12-2009
    • Replies: 0
    • Views: 1,080
    01-12-2009 Go to last post
  15. User process and cr3 register

    Arch - Linux 2.6.27.7-9-default x86_64 GNU/Linux Can a user process, while in kernel mode, dereference the address in the cr3 register to obtain...

    Started by gerard4143, 12-21-2008
    • Replies: 3
    • Views: 2,763
    01-11-2009 Go to last post
  16. TCP impelementations

    As far as I know since linux kernel 2.6.19 CUBIC is used as the standard TCP implemantation. Is this still true for the current kernel, how can I...

    Started by haneugen, 01-10-2009
    • Replies: 0
    • Views: 527
    01-10-2009 Go to last post
  17. mmap function returns 0 instead of the mapped address

    Hi all, I am writing a mmap function for a new socket family. The function looks like the following. The memory that's being mapped is a...

    Started by btklee, 01-09-2009
    • Replies: 0
    • Views: 657
    01-09-2009 Go to last post
  18. inittab

    can i configure the time taken by the inittab to respawn ?

    Started by velu_fr, 01-09-2009
    • Replies: 0
    • Views: 544
    01-09-2009 Go to last post
  19. cpu idle time

    I am transitioning our data processing center from Unix to Linux. One of the frequently used commands under Unix was sar. I used this to analyze...

    Started by mtmigs, 01-08-2009
    • Replies: 5
    • Views: 4,790
    01-09-2009 Go to last post
  20. Problem decompressing kernel

    Hi, I'm trying to make a kernel that can boot up into as many laptops as possible, so I'm testing them on as many laptops as I can get my hands...

    Started by galapogos, 01-09-2009
    • Replies: 0
    • Views: 737
    01-09-2009 Go to last post

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