Bug 67277 - Lockdep splat on kernel 3.10.0
Summary: Lockdep splat on kernel 3.10.0
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/nouveau (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Nouveau Project
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-07-24 21:03 UTC by Peter Hurley
Modified: 2014-11-20 20:11 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Attachments
lockdep splat in kernel log (6.05 KB, text/plain)
2013-07-24 21:03 UTC, Peter Hurley
no flags Details
dmesg log (56.70 KB, text/plain)
2013-07-24 21:05 UTC, Peter Hurley
no flags Details
Xorg log (37.93 KB, text/plain)
2013-07-24 21:11 UTC, Peter Hurley
no flags Details
lockep splat 3.11-rc6+ (10.84 KB, text/plain)
2013-08-21 08:17 UTC, Salah Coronya
no flags Details

Description Peter Hurley 2013-07-24 21:03:58 UTC
Created attachment 82961 [details]
lockdep splat in kernel log

On vanilla 3.10 mainline, before the user session loads, I get the attached lockdep report.
Comment 1 Peter Hurley 2013-07-24 21:05:37 UTC
Created attachment 82962 [details]
dmesg log
Comment 2 Peter Hurley 2013-07-24 21:11:47 UTC
Created attachment 82963 [details]
Xorg log
Comment 3 Salah Coronya 2013-08-21 08:17:03 UTC
Created attachment 84371 [details]
lockep splat 3.11-rc6+

I have the same thing in the current nouveau head (	3b56bba6abaa70d629fccdcf8490e087ea3a1ab4). Same lock but triggered differently.
Comment 4 Ilia Mirkin 2013-08-21 16:31:09 UTC
There is a patch available at:

http://lists.freedesktop.org/archives/dri-devel/2013-August/043406.html

Which should fix the issue.
Comment 5 Emil Velikov 2013-08-22 00:54:18 UTC
and for prenv50 cards you might also need
http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?id=3b56bba6abaa70d629fccdcf8490e087ea3a1ab4
Comment 6 Ilia Mirkin 2014-11-20 20:11:49 UTC
This code has been changed significantly by now, hopefully these issues are also long gone. Feel free to reopen if it's the same issue; if you're seeing different lockdep splats, please open a new issue not to have polluted history.


Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.