Did you know LQ has a Linux Hardware Compatibility List?
Go Back > Forums > Linux Forums > Linux - Software > Linux - Kernel
User Name
Linux - Kernel This forum is for all discussion relating to the Linux kernel.


  Search this Thread
Old 08-08-2012, 05:42 AM   #1
LQ Newbie
Registered: Jul 2012
Posts: 4

Rep: Reputation: Disabled
Linux kernel 3.4.4 and 3.4.7 panic

Hi All,

I've character driver for PCIe based DMA and it is working fine till kernel version number 3.3.7 on fedora 16.

But when I updated my kernel to 3.4.4, I am getting oops message while doing memory mapping for DMA. Oops messages are coming at function dma_map_single. The message which I am getting is:

Kernel BUG at lib/iommu-helper.c:13
Invalid Opcode and then Stack Dump.....

Same thing happening on kernel 3.4.7.

Any help will be highly appreciated.

Thanks in advance.
Old 08-10-2012, 03:49 PM   #2
Registered: Feb 2002
Location: Grenoble
Distribution: Debian
Posts: 9,547

Rep: Reputation: 160Reputation: 160
This is caused by:
Is the area size you're allocating a power of two?


kernel oops, kernel panic

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Kernel Panic in 64bit Arch Linux after Kernel Recompile: 2.6.35-rc3 jackerybakery Linux - General 3 06-16-2010 11:21 AM
Linux Kernel Problem -- Kernel panic: CPU context corrupt crcooney Linux - Distributions 0 01-15-2004 09:48 AM

All times are GMT -5. The time now is 01:30 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration