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Forum: Kernel

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

  1. Question vboxpci: IOMMU not found (not registered)

    I'm not sure if this is a kernel issue or OS issue (Ubuntu 16.04 64 bit) or a BIOS issue but I'll start here. IOMMU is enabled in the kernel and...

    Started by eelstrebor, 05-13-2017
    • Replies: 5
    • Views: 4,672
    05-13-2017 Go to last post
  2. Adding custom info to TCP Header Options by changing Linux Kernel Source code

    Greetings, I am trying to add a custom information (of size 16-bytes) to TCP Header Options by changing the implementation of function...

    Started by abhishek_linuxforum, 08-27-2010
    • Replies: 1
    • Views: 4,850
    05-02-2017 Go to last post
  3. Interrupt kernel module when user process terminates/receives signal?

    I am working on a kernel module where I need to be "aware" that a given process has crashed. Right now my approach is to set up a periodic timer...

    Started by yaronshr, 04-10-2017
    • Replies: 1
    • Views: 3,554
    04-12-2017 Go to last post
  4. Spawning processes with display output from Linux kernel module

    I am trying to spawn a process from a kernel module, that has visual output - for now, I'm just trying to spawn xeyes. I am trying to do this using...

    Started by yaronshr, 03-29-2017
    • Replies: 1
    • Views: 1,606
    04-05-2017 Go to last post
  5. How to update a kernel?

    So I have this problem with the new kernel I'm using. It's 2.6.32-642.15.1.el6 for CentOS 6.7. Whenever I update my kernel, no matter what version...

    Started by edomingox, 04-04-2017
    • Replies: 1
    • Views: 689
    04-04-2017 Go to last post
  6. Drop pagecache from kernel space

    Hi there! I'm pretty new in kernel developing and but I have a problem to solve, maybe someone can help. (I apologize in advance for my...

    Started by just_paul, 03-30-2017
    • Replies: 1
    • Views: 2,103
    03-31-2017 Go to last post
  7. Why My Linux Booting In to Emergency Mode ?

    Hi, I have an appliance which is running FreeBSD. I wanted to boot WindRiver Linux when I reboot the appliance. There are more than one partition...

    Started by ajayss, 03-01-2017
    • Replies: 1
    • Views: 5,433
    03-07-2017 Go to last post
  8. Kernel Panic : Unable To Mount Root FS on Unknown Block (0,0)

    Hi, I have an appliance which is running FreeBSD. I wanted to boot WindRiver Linux when I reboot the appliance. There are more than one partition...

    Started by ajayss, 02-24-2017
    • Replies: 3
    • Views: 3,106
    03-07-2017 Go to last post
  9. Kernel module level controls for mutual resource access?

    I know a little about semaphores and locks I am using for locking read and write operations to complete. However, for a specific hardware for a given...

    Started by pyzahl, 10-27-2016
    • Replies: 1
    • Views: 2,228
    02-22-2017 Go to last post
  10. The first Linux Kernel (linux-1.0)

    https://www.kernel.org/pub/linux/kernel/v1.0/ So. What to do with it? I kinda want to compile it, but i dont want to run linux-1.0 on my...

    Started by mindsword, 01-18-2017
    • Replies: 8
    • Views: 2,142
    02-21-2017 Go to last post
  11. Lightbulb Alternate working directory

    Please add an 'alternate working directory' link and make it accessible through '/proc/<pid>'. It should be initially set to the login directory and...

    Started by mtew, 01-17-2017
    • Replies: 7
    • Views: 2,634
    01-29-2017 Go to last post
  12. What do CAL interrupts do and is there a way to disable them?

    I am currently working on highly latency-sensitive software and I have a problem with interrupts. To make sure, processing is as fast as possible, I...

    Started by radschapur, 10-15-2016
    • Replies: 1
    • Views: 2,017
    01-13-2017 Go to last post
  13. Booting The Kernel

    Hello. I'm new in the forum and linux. I want to make my own simple OS. I want to run this OS on VM. But the VM says "No bootable medium found" What...

    Started by UygarKoc, 12-24-2016
    • Replies: 8
    • Views: 1,816
    12-26-2016 Go to last post
  14. usb_modeswitch unsccessful for MediaTek MT6225

    Hi, I am trying to do usb_mode-switch in my almond 3 router but it is not working.Its seems it is not finding the device ,the router is embed...

    Started by pankajcharpe, 12-15-2016
    • Replies: 0
    • Views: 989
    12-15-2016 Go to last post
  15. Question How Does Linux CFS Scheduler Define Domains and Groups?

    Hi Experts, I'm currently learning the source code of Linux kernel CFS. I know the load balancing is based on the schedule domains(sd) and...

    Started by simonwan, 10-11-2016
    • Replies: 0
    • Views: 810
    10-11-2016 Go to last post
  16. Question Updated and detailed description for kernel configurations?

    Hi all! I'm in the process of creating an optimized kernel image for my Zenbook UX303LB which I mainly use to do 3D programming for the browser...

    Started by Edu, 10-09-2016
    • Replies: 2
    • Views: 901
    10-09-2016 Go to last post
  17. Lightbulb A long time issue, Kthreadd stuck processes.

    these kthreadds came from a virtual box instance. What i read is it is stuck on the HDD or some hardware somewhere waiting for a signal to get...

    Started by zzRemix, 09-29-2016
    • Replies: 9
    • Views: 1,884
    09-29-2016 Go to last post
  18. Question Enlarging Linux Kernel Log Buffer more than 4MiB

    I want to have a large log buffer for my logging needs on an Android device (Nexus 5). I've already increased the log buffer size to 4MiB by changing...

    Started by m-d, 09-23-2016
    • Replies: 3
    • Views: 2,529
    09-25-2016 Go to last post
  19. What page replacement algorithms are being used?

    Hi, I read some articles about the memory management in Linux. Some of them say that the page replacement algorithm is LRU. Some say that it...

    Started by syko, 09-05-2016
    • Replies: 2
    • Views: 2,596
    09-06-2016 Go to last post
  20. Problem tracing arguments of compat_sys_execve with ftrace/Perf

    While trying to trace arguments of the 'compat_sys_execve' system call using ftrace or Perf, I noticed that not all arguments are always captured....

    Started by dhendriks, 09-01-2016
    • Replies: 1
    • Views: 1,045
    09-02-2016 Go to last post

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