Dear friends,

I have hacked a kernel and created a module that invokes some functions from this kernel. The mods work perfectly on my workstation, but I'm having several problems on a 64bit server which runs the exactly same Linux distribution.

The distro is a Ubuntu 7.04 and the kernel is 2.6.20.3-ubuntu1.

The only difference is that my workstation is i686 and the server is x86_64.

Hi, i am trying to hook readdir call in proc filesystem.

        struct file_operations *fops;

	fops = proc_root.proc_fops;
	readdir_old = fops->readdir;
	fops->readdir = readdir_new;

       

But, proc_root is no longer exported. So, how can I get it?
(No System.map, /dev/kmem ...)

Thank you

What is the source of info for the backtrace API to display the symboling names of API sequence?

I am trying to write a MAC driver for Arm 11 MPcore in 2.6.23. The DMA'ble memory required is supposed to be non-cached for performance reasons.

A chunk of memory(~ 6MB) is allocated at startup using bigphys area patch. This physical area in the RAM is mmap'd to userspace as follows and thereafter carved into network buffers:

fd = open("/dev/mem", O_RDWR|O_SYNC);

What is the reason of error msg:
glibc detected *** free(): invalid pointer 0x2aca1e6c ***

I faced the following error once in my linux machine:
swap_dup: Bad swap file entry

What this error indicates?

Hi I am trying to compile a new kernel (2.6.9) so that I can install rtlinux however when I run sudo make bzImage I get the following error:

include/asm/mpspec_def.h:78: warning: 'packed' attribute ignored for field of type 'unsigned char[6]'
arch/i386/kernel/process.c: In function 'show_regs':

Hi All,

I have query regarding exposing SCSI target with file system & data on it. I am using 32-bit machine.

Hi
I have a system that consists of 14 processoes .Under high load one processor shows 100% usage and rest show normal behaviour.Driver is NAPI compliant.So is it a driver issue or scheduler issue?. Kernel is 2.6. The output of "top" commands show that the cpu that is 100% consumed is running ksoftirqd and it is 0% idle and 100% SI.

Interrupts are evenly distributed over the system

I am using Debian Lenny with 2.6.30 kernel on my Intel Atom Poulsbo chipset computer and I get the following messages in my dmesg when I start the X server:


[ 22.760737] mtrr: type mismatch for 3ffc0000,10000 old: write-back new: write-combining
[ 22.760805] mtrr: type mismatch for 3ff80000,40000 old: write-back new: write-combining

Hello,
could anyone save me from recompiling the whole kernel and rebooting, if I need tun.ko?

I want to use a vanilla kernel on my embedded x86 machine.
I have 3 options:
1. Run Dan kegel's last script: it uses 2.6.15.4
2. Use the LFS 6.4: It uses 2.6.27.4
3. Use the last version in kernel.org: 2.6.30.1, But with what tools version ?

can anyone explain the metadata btree structure of btrfs ??