Bug 90621

Summary:	Graphics card locks up fom time to time (ERROR radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD))
Product:	Drivers	Reporter:	Andre (aceone)
Component:	Video(DRI - non Intel)	Assignee:	drivers_video-dri
Status:	NEW ---
Severity:	normal	CC:	alexdeucher, szg00000
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	3.18.1	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	last message in log dmesg

Description Andre 2015-01-02 18:08:38 UTC

Created attachment 162311 [details]
last message in log

The System is locking up, not even magic keys work only hard reset. Not often maybe 2 times a week. 

Screen blackens for a second than gets back again but everything is frozen.

I NEVER do Resume or Hibernation or Standby. So this happens occasionally. 

If you search can find some others who have the same problem starting with 3.17
https://www.google.de/search?q=radeon++fence+driver+on+ring+5+use+gpu+addr++and+cpu+addr++%5Bdrm%3Ar600_ring_test%5D+*ERROR*+radeon%3A+ring+0+test+failed+%28scratch%280x8504%29%3D0xCAFEDEAD%29+

Comment 1 Andre 2015-01-02 18:10:09 UTC

Created attachment 162321 [details]
dmesg

Comment 2 Alex Deucher 2015-01-02 22:35:00 UTC

If this is a regression, can you bisect?  Also what version of mesa are you using?  You might try a newer version of mesa.

Comment 3 Andre 2015-01-05 13:31:48 UTC

Currently using mesa 10.2.8

Will try to install mesa 10.3.5-r1 now.

The error didn't occur since writing this bug. So it's not very often but i will try.