[Bug 30102] New: Radeon : ring test failed

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=30102

           Summary: Radeon : ring test failed
           Product: Drivers
           Version: 2.5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri at kernel-bugs.osdl.org
        ReportedBy: b747xx at gmail.com
        Regression: No


Created an attachment (id=49622)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=49622)
dmesg

On the radoen module load, I got this error:

[    9.874444] [drm:r600_ring_test] *ERROR* radeon: ring test failed
(scratch(0x8504)=0xCAFEDEAD)
[    9.874447] radeon 0000:01:05.0: disabling GPU acceleration
[    9.875771] radeon 0000:01:05.0: ffff88043c78dc00 unpin not necessary

This is intermittent. I got theses error two weeks ago and it vanish after a
reboot about 1 week ago. The video acceleration was working perfectly until
yesterday reboot (adding an option in the kernel) and now the problem is back.

After the problem came back, I tried booting on the 3 others kernels I used
this week (when it was working correctly) and the problem is still there with
them.

I have attached the dmesg and my .config if this can help find the problem.

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