Bug 93614 - Tonga general protection fault in libdrm_amdgpu at di.fm
Summary: Tonga general protection fault in libdrm_amdgpu at di.fm
Status: RESOLVED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
QA Contact:
URL:
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Keywords:
Depends on:
Blocks:
 
Reported: 2016-01-06 20:22 UTC by Brian Paterni
Modified: 2016-01-16 16:27 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Attachments
Debian's xserver-xorg-video-amdgpu bugscript output (106.46 KB, text/plain)
2016-01-06 20:22 UTC, Brian Paterni
no flags Details
xorg.log (103.52 KB, text/plain)
2016-01-06 20:25 UTC, Brian Paterni
no flags Details
gdb captured backtrace of segmentation fault (6.46 KB, text/plain)
2016-01-07 02:40 UTC, Brian Paterni
no flags Details

Description Brian Paterni 2016-01-06 20:22:58 UTC
Created attachment 120836 [details]
Debian's xserver-xorg-video-amdgpu bugscript output

Dear Maintainer,

di.fm's f2p streaming service is now only available through their website -- the downloadable playlist steams that used to be available now redirect people to the website -- and as a result I pulled up di.fm to attempt to play one of their steam. But instead of music, I see that the flashplugin has apparently crashed and a general protection fault pointing to libdrm_amdgpu has occurred and is reported in dmesg:

[21182.057540] traps: plugin-containe[32761] general protection ip:7f33d2ce0148 sp:7fff24852d60 error:0 in libdrm_amdgpu.so.1.0.0[7f33d2cdc000+7000]

Attached should be the output given by debian's xserver-xorg-video-amdgpu bugscript
Comment 1 Brian Paterni 2016-01-06 20:25:06 UTC
Created attachment 120837 [details]
xorg.log

The debian bugscript seems to still use xorg logs from /var/log so here is a current one from .local/usr/xorg
Comment 2 Michel Dänzer 2016-01-07 01:34:23 UTC
We need to see a backtrace of a crash.
Comment 3 Brian Paterni 2016-01-07 02:40:20 UTC
Created attachment 120850 [details]
gdb captured backtrace of segmentation fault

So it turns out I am able to stream successfully from di.fm, I think I may have just needed to sign up(!) :-)

Regardless though, launching of the web player does seem to be a bit spotty. Though I'm not sure if it caused by this bug or something else...

(In reply to Michel Dänzer from comment #2)
> We need to see a backtrace of a crash.

I was able to get the attached backtrace by attaching to the browser's flashplugin subprocess! Hopefully it does help. To reproduce, all that seems necessary is to visit di.fm.
Comment 4 Brian Paterni 2016-01-16 16:27:08 UTC
Not sure exactly which package provided the fix, but now I'm no longer seeing the fault, and also the stream on di.fm launches more consistently now. Recently updated packages and versions:

libdrm: 2.4.66-2
mesa:   11.1.1-2

Thanks to all working on this! :)

Closing this bug


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