Bug 81255

Summary: EDEADLK with S. Islands APU+dGPU during ib test on ring 5
Product: DRI Reporter: joshua.r.marshall.1991
Component: DRM/RadeonAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED WORKSFORME QA Contact:
Severity: normal    
Priority: medium    
Version: XOrg git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
sudo lshw -sanitize
none
sudo journalctl -b -kxam
none
Xorg.0.log
none
Xorg.0.log.old none

Description joshua.r.marshall.1991 2014-07-12 01:58:11 UTC 
Created attachment 102648 [details]
sudo lshw -sanitize

Recently installed a R9 270x on my system.  For the life of me, I cannot determine what is wrong.  The BIOS uses it by default, during early boot the system uses it, but during the VT switchoff, my system switches to APU graphics during a series of GPU page faults.  Also, when running startxfce, the first time after boot fails, and the following uses only the APU graphics.

sudo lshw -sanitize > http://pastebin.com/tkihM4rH

sudo journalctl -b -kxam > http://pastebin.com/EJcwcYU6

cat /var/log/Xorg.0.log > http://pastebin.com/wCbzws9d

cat /var/log/Xorg.o.log.old > http://pastebin.com/GaAL5Tqa

Xorg is working on auto.
Comment 1 joshua.r.marshall.1991 2014-07-12 01:58:54 UTC 
Created attachment 102649 [details]
sudo journalctl -b -kxam
Comment 2 joshua.r.marshall.1991 2014-07-12 01:59:22 UTC 
Created attachment 102650 [details]
Xorg.0.log
Comment 3 joshua.r.marshall.1991 2014-07-12 01:59:49 UTC 
Created attachment 102651 [details]
Xorg.0.log.old
Comment 4 joshua.r.marshall.1991 2014-07-12 02:05:14 UTC 
I would start at <KERNEL ROOT>/drivers/gpu/drm/radeon/radeon_fence.c:368 since that is the clause being hit.  So on line 364 on iteration 5 (the last) radeon_ring_is_lockup returns true.  The function's definition is beyond me, so that's where I'll have to leave you off.
Comment 5 Kertesz Laszlo 2014-07-12 07:50:11 UTC 
You should try disabling the APU from the BIOS.
Comment 6 joshua.r.marshall.1991 2014-07-12 12:47:14 UTC 
That is not a BIOS option.
Comment 7 joshua.r.marshall.1991 2014-07-12 13:26:23 UTC 
Re-read the manual.  There is an option...albeit described as something else.

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