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Threads 861 to 880 of 3697

Forum: Kernel

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

  1. Kernel start address

    How can I programatically obtain the kernel code segment start address and the end address ? Facts I've gathered: - For 32 bit machine it...

    Started by novice10, 06-15-2011
    • Replies: 0
    • Views: 2,703
    06-15-2011 Go to last post
  2. Difficult in kernel level read/write to file

    Why it is so difficult to peform file operation (Read/write) in kernel level...wat happens if something goes wrong...... Thanks

    Started by coeteam, 06-14-2011
    • Replies: 0
    • Views: 661
    06-14-2011 Go to last post
  3. Request function in block driver

    How to end the request(I/O) in block driver for particular disk drive without affecting other request intended for some other drives.

    Started by coeteam, 06-13-2011
    • Replies: 0
    • Views: 675
    06-13-2011 Go to last post
  4. help implementing an "ip filter" in socket.c

    hi there so, i was given an assignment: implement a syscall that blocks all packets sent to a given IP (without using iptables) i'm really new...

    Started by lgfaria, 06-12-2011
    • Replies: 0
    • Views: 793
    06-12-2011 Go to last post
  5. Implementing priority based preemtive pthread

    Hi.. I am trying to create 2 pthreads from my main thread with different scheduling priorities. I want to create a scenario when one of my threads...

    Started by bhatta_sobs, 05-28-2010
    • Replies: 2
    • Views: 2,232
    06-11-2011 Go to last post
  6. Help need in Block driver

    hi, We are currently working on block level driver in linux ubuntu .we are having a storage controller and we are trying to capture and filling...

    Started by coeteam, 06-11-2011
    • Replies: 0
    • Views: 687
    06-11-2011 Go to last post
  7. Thumbs down poll_wait( ) is not waiting in the driver

    Hello All, I am writing a simple char device driver on 2.6.28 linux kernel, in which it needs a polling feature implemented. I have created...

    Started by tanniru, 06-09-2011
    • Replies: 0
    • Views: 2,732
    06-09-2011 Go to last post
  8. Kernel preemption and current task variable

    Hello, In Kernel space context (Kernel 2.6.35), I know that in the case of IRQ context ,the current task is preempted, then the handler is executed...

    Started by baba0044, 06-08-2011
    • Replies: 0
    • Views: 1,384
    06-08-2011 Go to last post
  9. Question no condition is checked between prepare_to_wait() and schedule()

    I'm reading "linux kernel development 3rd". I have a question about the recommended method for sleeping on page 59. The method is: ...

    Started by robertx, 06-07-2011
    • Replies: 0
    • Views: 1,604
    06-07-2011 Go to last post
  10. Question A Query on Compat Ioctl

    Suppose I have defined the following. #define MY_IOCTL_CMD1 _IOR(MAGIC_NUMBER, 0x01, arg1) #define MY_IOCTL_CMD2 _IOW(MAGIC_NUMBER, 0x02, arg2)...

    Started by bmukherjee, 06-07-2011
    • Replies: 0
    • Views: 1,857
    06-07-2011 Go to last post
  11. my driver vs. usbhid driver

    Hi, I'm currently in the process of writing a usb device driver but i have a issue i can't find the answer to so i thought i'd put it to the forum...

    Started by okiura, 06-03-2011
    • Replies: 0
    • Views: 1,655
    06-03-2011 Go to last post
  12. missed interrupts with level sensitive IRQ

    Is this actually possible? I am chasing a very infrequent bug which results in a timeout on a comms link and it seems to be caused by the IRQ...

    Started by davewooff, 06-03-2011
    • Replies: 0
    • Views: 1,203
    06-03-2011 Go to last post
  13. USB Serial Driver

    A general question about the Linux USB serial driver that has puzzled me. In drivers/usb/serial/option.c, there is a function called...

    Started by jay214128, 06-03-2011
    • Replies: 0
    • Views: 3,015
    06-03-2011 Go to last post
  14. Built-in.o

    Hi all , A query related to the kernel build system .. Why do I sometime see a built-in.o file inside some of my kernel drivers ? The...

    Started by Rajesh_CB, 06-02-2011
    • Replies: 0
    • Views: 1,380
    06-02-2011 Go to last post
  15. Is there a compat_read/compat_write (CONFIG_COMPAT)???

    Hello all, I am porting the code of a device driver from 32bit to 64bit. We have both 32bit and 64bit processes talking to the driver through...

    Started by pvpnguyen, 05-31-2011
    • Replies: 2
    • Views: 2,938
    06-01-2011 Go to last post
  16. user mode callback from kernel

    Hi, I have a requirement to use a freeware linux user mode library for data processing. The input data is purely in kernel space and we are finding...

    Started by nitin78, 05-28-2011
    • Replies: 1
    • Views: 1,107
    05-29-2011 Go to last post
  17. ramoops

    Anyone familiar with "ramoops"? Allow me to give some context... I'm loading the 2.6.35 kernel on a test machine and receive this message in...

    Started by dsteelenet, 05-26-2011
    • Replies: 0
    • Views: 1,535
    05-26-2011 Go to last post
  18. libata

    Hi I am looking for an ATA IOCTL command that would provide the capability to set up a buffer in which data can be returned from the drive/sent to...

    Started by odomae, 05-26-2011
    • Replies: 1
    • Views: 1,003
    05-26-2011 Go to last post
  19. Exclamation kernel panic help

    Hi everybody! I have been having issues with a Red Hat Enterprise 5 server for a while now. I wanted to squeeze a little more performance out of...

    Started by Blue|Fusion, 05-21-2011
    • Replies: 4
    • Views: 1,983
    05-23-2011 Go to last post
  20. NETDEV WATCHDOG: eth1: transmit timed out error

    Hi, I have written a driver for a Wireless LAN chip for PXA270M arm platform. The wireless lan interface is eth1. I am able to ping the...

    Started by sumitv, 05-18-2011
    • Replies: 3
    • Views: 3,446
    05-22-2011 Go to last post

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