Bug 36330

Summary: 2.6.38 kernel fails to boot with nouveau driver active
Product: xorg Reporter: ghutzl
Component: Driver/nouveauAssignee: Nouveau Project <nouveau>
Status: RESOLVED DUPLICATE QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
my kernel config for a 2.6.38.2 vanilla kernel none

Description ghutzl 2011-04-17 13:28:16 UTC 
Created attachment 45742 [details]
my kernel config for a 2.6.38.2 vanilla kernel

Hello!

My 2.6.38 kernel fails to boot when using the nouveau driver. See these pictures of the kernel output while booting:

http://tinypic.com/r/xefq6e/7
http://tinypic.com/r/2w5kc8w/7
http://tinypic.com/r/30wmlmv/7

I made 3 pictures because I wanted to show the effect of the "shifted" text in the fullscreen picture where you can barely read the text. The other two pictures show the text.

I am running gentoo linux and I used kernel 2.6.37 for quite a while with no problems but was not able to produce a working 2.6.38 kernel. I have tried the gentoo-sources-2.6.38-r1 and also a vanilla 2.6.38.2 kernel and the behaviour is the same for both. I have attached my kernel config.
Comment 1 ghutzl 2011-04-17 13:50:00 UTC 
Looks like I found the culprit:

In a desperate attempt I have deactivated the boot logo display in my kernel and now it boots with no problems.

Please tell me if and how I can help debugging this. For the moment I can perfectly live without the boot logo but I would like to contribute something to nouveau development if I can.
Comment 2 Marcin Slusarz 2011-04-17 14:28:27 UTC 
This is probably the same bug which was reported recently:
https://lkml.org/lkml/2011/4/15/27
https://bugs.freedesktop.org/show_bug.cgi?id=36248
Comment 3 Marcin Slusarz 2011-04-22 07:37:10 UTC 
Yes, it's the same bug and it's fixed by commit a18d89ca026140eb8ac4459bf70a01c571dd9a32 "drm/nouveau: fix
notifier memory corruption bug" (after 2.6.39-rc4).

It will soon go to 2.6.38-stable.

If you are impatient, you can apply it manually from: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=a18d89ca026140eb8ac4459bf70a01c571dd9a32

*** This bug has been marked as a duplicate of bug 35374 ***

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