Bug 75494

Summary: Kabini [Radeon HD 8240] Xorg segfault on resume from suspend with glamor and radeonsi
Product: DRI Reporter: Jarno Leppänen <jarno.leppanen>
Component: DRM/RadeonAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED FIXED QA Contact:
Severity: critical    
Priority: medium CC: blaze, jarno.leppanen
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg
none
gdb full backtrace
none
Xorg.log none

Description Jarno Leppänen 2014-02-25 11:52:42 UTC 
The bug is probably the same as https://bugs.freedesktop.org/show_bug.cgi?id=75433

Xorg.log, dmesg log and full backtrace from gdb are included.

Hardware:
Lenovo Thinkpad E145
AMD/ATI Kabini [Radeon HD 8240]

Software:
linux 3.13.5
glamor-egl 0.6.0
mesa 10.0.3
xorg-server 1.15.0
xf86-video-ati 7.3.0
Comment 1 Jarno Leppänen 2014-02-25 11:56:05 UTC 
Created attachment 94713 [details]
dmesg
Comment 2 Jarno Leppänen 2014-02-25 11:57:13 UTC 
Created attachment 94714 [details]
gdb full backtrace
Comment 3 Jarno Leppänen 2014-02-25 11:57:58 UTC 
Created attachment 94715 [details]
Xorg.log
Comment 4 Michel Dänzer 2014-02-27 07:12:05 UTC 
(In reply to comment #1)
> Created attachment 94713 [details]
> dmesg

Looks like the GPU locks up on resume, and the GPU reset fails to get it back in shape.

Does this also happen with DPM disabled?
Comment 5 Jarno Leppänen 2014-02-27 07:20:46 UTC 
Yes, setting kernel parameter radeon.dpm=0 doesn't help.
Comment 6 Jarno Leppänen 2014-02-27 07:33:40 UTC 
Also, I need to reboot the machine in order to get hardware acceleration working again. If I try to restart X after the crash it reverts to software rendering with Xorg.log complaining that "Screen 0 is not DRI2 capable". Nothing on dmesg though.
Comment 7 Jarno Leppänen 2014-03-20 10:16:57 UTC 
This problem seems to be fixed in mainline kernel version 3.14-rc7. Closing bug. Thanks!
Comment 8 Jarno Leppänen 2014-03-26 16:42:36 UTC 
Works now also on linux stable 3.13.7

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