[Bug 85421] radeon stalled, GPU lockup, reset and failed on resume; crashed by firefox.

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=85421

Jorn Amundsen <jorn.amundsen at ntnu.no> changed:

           What    |Removed                     |Added
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                 CC|                            |jorn.amundsen at ntnu.no

--- Comment #13 from Jorn Amundsen <jorn.amundsen at ntnu.no> ---
I also experience similar hangs, with a F20 system with mesa 10.3.3. In total,
I have F20 installed on four systems, two using the nvidia kernel driver, one
with i915 and one with radeon. Only the radeon system experience hangs. I get

Nov 28 10:17:15 t kernel: radeon 0000:01:00.0: ring 5 stalled for more than
10000msec
Nov 28 10:17:15 t kernel: radeon 0000:01:00.0: GPU lockup (waiting for
0x0000000000000004 last fence id 0x0000000000000002 on ring 5)
Nov 28 10:17:15 t kernel: [drm:uvd_v1_0_ib_test] *ERROR* radeon: fence wait
failed (-35).
Nov 28 10:17:15 t kernel: [drm:radeon_ib_ring_tests] *ERROR* radeon: failed
testing IB on ring 5 (-35).
Nov 28 10:17:15 t kernel: [drm:si_dpm_set_power_state] *ERROR* si_set_sw_state
failed
Nov 28 10:17:15 t kernel: radeon 0000:01:00.0: GPU fault detected: 146
0x06c24804
Nov 28 10:17:15 t kernel: radeon 0000:01:00.0:  
VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x000125B6
Nov 28 10:17:15 t kernel: radeon 0000:01:00.0:  
VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x02048004
Nov 28 10:17:15 t kernel: VM fault (0x04, vmid 1) at page 75190, read from TC
(72)
Nov 28 10:17:15 t kernel: radeon 0000:01:00.0: GPU fault detected: 146
0x04a33d04
Nov 28 10:17:15 t kernel: radeon 0000:01:00.0:  
VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x00012EA5
Nov 28 10:17:15 t kernel: radeon 0000:01:00.0: 
VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x0303D004
Nov 28 10:17:15 t kernel: VM fault (0x04, vmid 1) at page 77477, write from
DMA1 (61)
Nov 28 10:17:42 t sh: abrt-watch-log: Warning, '/usr/bin/abrt-dump-xorg' did
not process its input
...

I can not pinpoint one specific action which triggers the hang. First time it
was firefox, next time Konsole and other times it simply hangs a while after
locking the screen. I am considering downgrading mesa. Let me know if there are
other measures I can take to help resolving this bug.

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