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Forum: Kernel

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

  1. Killed messages in Linux kernel module

    Hello everyone, I am trying to write a kernel module. The code is below. What I am trying to do here is basically hook the read system call and...

    Started by nmahendru, 11-22-2014
    • Replies: 1
    • Views: 662
    11-25-2014 Go to last post
  2. NEED SOME HELP regarding IVT to IDT transition when in protected mode

    Hello all, as a part of the coursework I have been taking my semister's assignment involved mini-kernel design that emphasizes on multi-tasking and...

    Started by gglf000, 11-23-2014
    • Replies: 0
    • Views: 480
    11-23-2014 Go to last post
  3. Mapping Noncontiguous Physical RAM

    I'm working with an ARM based system using kernel 3.2.6. This system has two physical RAM banks located in noncontiguous addresses. What is the...

    Started by jay214128, 11-19-2014
    • Replies: 1
    • Views: 628
    11-19-2014 Go to last post
  4. [SOLVED] Unable to open a file from procfs after setcap.

    Hello! I've got some problem with procfs and process capabilities. After updating to kernel 3.16, applications which use procfs (/proc/self/*)...

    Started by idgrasp, 10-27-2014
    • Replies: 6
    • Views: 1,366
    11-18-2014 Go to last post
  5. [Wandcam ov5640] Can't use high resolution modes with width and height

    Hi everybody, Few days ago, I've been playing with a WandCam (Sensor OmniVision OV5460) and with my Wandboard Solo's target (Freescale i.MX6...

    Started by Boadrius, 11-18-2014
    • Replies: 0
    • Views: 1,248
    11-18-2014 Go to last post
  6. Implement PMI (Performance monitoring interrupt) handler on x86_64

    Hi guys, I want to implement my own PMI (Performance monitoring interrupt) handler in my kernel module on x86_64 architecture. Is there any...

    Started by ZverBle, 11-17-2014
    • Replies: 0
    • Views: 418
    11-17-2014 Go to last post
  7. Post TLB Data Miss is different for using mmap with MAP_SHARED or MAP_PRIVA

    I tested the TLB Data Miss for a large piece of memery(e.g. 2GB), and found that it is different for malloc and mmap with MAP_SHARED, MAP_ANONYMOUS....

    Started by woodslong, 11-14-2014
    • Replies: 0
    • Views: 551
    11-14-2014 Go to last post
  8. Proc filesystem deprecated

    Hi, I heard that the proc file system will be depricated from the future versions of the Linux kernel. I would like to if this is true or not,...

    Started by kemosparc, 11-12-2014
    • Replies: 5
    • Views: 2,250
    11-13-2014 Go to last post
  9. Exclamation Qemu Memory addresses print

    I am new to qemu development. I wanted to print the corresponding addresses involved when a memory has been assigned to a virtual machine. For...

    Started by Shivaramakrishnan, 10-30-2014
    • Replies: 0
    • Views: 825
    10-30-2014 Go to last post
  10. Why Linux swappines is so high while HDD is slower than RAM?

    Why linux default (i have Redhat CenOS) swappiness (Swappiness - Wikipedia, the free encyclopedia) value is 60 (to rather use disc than RAM?) while...

    Started by postcd, 10-28-2014
    • Replies: 3
    • Views: 707
    10-29-2014 Go to last post
  11. Page table allocation!

    Hi experts, A quick question about allocation of page tables. Is it possible to force Linux kernel to allocate pages only at a specific part of the...

    Started by hnnemati, 10-29-2014
    • Replies: 0
    • Views: 521
    10-29-2014 Go to last post
  12. compile specific source file in Linux coreutils package

    I need to compile a specific version of cp (copy) command from the Linux coreutils source file. Instead of compiling the whole package. iam just add...

    Started by san_man, 10-27-2014
    • Replies: 1
    • Views: 574
    10-27-2014 Go to last post
  13. Exclamation OS Development Resources Related

    Hello, I am new to OS System Development. I have the concepts behind as to how an OS works,how paging, scheduling etc work, but now want to...

    Started by Shivaramakrishnan, 07-31-2014
    • Replies: 4
    • Views: 2,294
    10-20-2014 Go to last post
  14. Where to start learning?

    I've been learning C for a bit and would really like to start learning about how to work on my own personal Linux-based OS. If anyone could recommend...

    Started by roar411, 10-11-2014
    • Replies: 2
    • Views: 769
    10-20-2014 Go to last post
  15. How to edit files in /sys/kernel folder

    Hi, Please let me know how to edit a file content in /sys/kernel folder. Currently in my case I am trying to edit the value of kexec_crash_loaded...

    Started by linuxbeginner32, 10-16-2014
    • Replies: 3
    • Views: 1,003
    10-16-2014 Go to last post
  16. Question When is storage allocated for a newly created ext2 inode?

    I'm reading in Understanding the Linux Kernel, 3rd Edition on how to create a new regular file on ext2fs. (Book is found at multiple places : not...

    Started by ronbarak, 10-15-2014
    • Replies: 2
    • Views: 541
    10-15-2014 Go to last post
  17. Exclamation directions for simpler and similar to Qemu emulators for x86 machines

    Hello , I am new to emulators. I wanted to know if someone could point out a simpler and easier emulator to play with. I wanted to emulate some...

    Started by Shivaramakrishnan, 10-14-2014
    • Replies: 0
    • Views: 586
    10-14-2014 Go to last post
  18. params referred by bootloader to decide if reboot after kernel panic

    Currently I am using kexec-tools for kdump analysis. I am able to use the crash dump successfully. But further wanted to understand how this works. ...

    Started by linuxbeginner32, 10-10-2014
    • Replies: 2
    • Views: 808
    10-13-2014 Go to last post
  19. Kernel Module Upgrade with minmal downtime and no reboot

    I have a dynamically loaded character driver module say with Major number X which is which reading the serial port traffic and then an application is...

    Started by gaurav_vohra, 10-08-2014
    • Replies: 1
    • Views: 581
    10-08-2014 Go to last post
  20. can a kernel module acts like a patch!!..??

    Hello, I am wondering if a kernel module can act like a patch,I mean I have kernel patch that adds files and changes existance ones in the kernel,...

    Started by hissokaaaa, 10-05-2014
    • Replies: 0
    • Views: 478
    10-05-2014 Go to last post

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