Bug 22010

Summary: [945GM] [Bisected] X hang after suspend
Product: xorg Reporter: Jie Luo <clotho67>
Component: Driver/intelAssignee: Carl Worth <cworth>
Status: RESOLVED DUPLICATE QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: 7.4 (2008.09)   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
intel_gpu_top
none
intel_gpu_dump none

Description Jie Luo 2009-05-30 19:43:29 UTC 
The screen corrupt and stayed still after suspend. You can move cursor around, but the server does not response. I can access to the machine through ssh, nothing show up in the log and dmesg. The cpu usage is normal too. I can't restart X, and have to restart the whole machine.

After doing some bitsect with git, I found the bad commit is

commit 8e942b70cb9a784b3f1311affd6fc74c4bcf68bb
Author: Carl Worth <cworth@cworth.org>
Date:   Thu May 21 13:12:52 2009 -0700

    Revert "Rely on BO pixmaps being present in acceleration paths."
    
    This reverts commit 4653a7db622ad54a3182d93c81331765d930db34.
    
    Eric was getting a little too ambitious about our brave, new world.
    We do still want the driver to work with old, non-GEM kernels
    after all.


After revert this one, everything is fine.

kernel: 2.6.30-rc7-git4
xserver: 1.6.1.901
xf86-video-intel: 8e942b70cb9a784b3f1311affd6fc74c4bcf68bb
Comment 1 Jie Luo 2009-06-05 19:40:03 UTC 
Some updates on this bug. It seams that with kernel 2.6.29.3 everything works fine. Besides after revert 8e942b70cb9a784b3f1311affd6fc74c4bcf68bb I still hang for one time. So the bug might be lurk in somewhere else. I'll retest with latest kernel and report back.
Comment 2 Jie Luo 2009-06-05 19:58:08 UTC 
OK, after retest with kernel 2.6.30-r8-git1, the hang still there. Maybe it is a regression of the kernel drm driver. I'll try to bisect the kernel instead.
Comment 3 Jie Luo 2009-06-05 19:59:08 UTC 
Created attachment 26480 [details]
intel_gpu_top
Comment 4 Jie Luo 2009-06-05 20:07:39 UTC 
Created attachment 26481 [details]
intel_gpu_dump

This is what intel_gpu_dump shows after stripe a lot of MI_NOOP at the end of file.
Comment 5 Jie Luo 2009-06-12 23:31:43 UTC 
It seams the same issue has also been reported as http://bugs.freedesktop.org/show_bug.cgi?id=22039
Comment 6 Jesse Barnes 2009-06-16 15:24:09 UTC 
Marking as a DUP of an older 945GM hang... this is a high priority bug.

*** This bug has been marked as a duplicate of bug 20520 ***

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