[Bug 102322] System crashes after "[drm] IP block:gmc_v8_0 is hung!" / [drm] IP block:sdma_v3_0 is hung!

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Comment # 55 on bug 102322 from
(In reply to dwagner from comment #54)
> (In reply to Andrey Grodzovsky from comment #53)
> > Created attachment 141198 [details] [review] [review] [review]
> > add_debug_info2.patch
> > 
> > Try this patch instead, i might be missing some prints in the first one.
> 
> Can try that this evening.
> 
> > In the last log you attached I haven't seen any UMR dumps or GPU fault
> > prints in dmesg. THe GPU fault has to be in the log to compare the faulty
> > address against the debug prints in the patch.
> 
> In above attached file "xz-compressed output of gpu_debug3.sh" there is umr
> output at the time of the crash (238 seconds after the reboot):
> 
> ----------------------------------------------
> ...
>           mpv/vo-897   [005] ....   235.191542: dma_fence_wait_start:
> driver=drm_sched timeline=gfx context=162 seqno=87
>           mpv/vo-897   [005] d...   235.191548: dma_fence_enable_signal:
> driver=drm_sched timeline=gfx context=162 seqno=87
>      kworker/0:2-92    [000] ....   238.275988: dma_fence_signaled:
> driver=amdgpu timeline=sdma1 context=11 seqno=210
>      kworker/0:2-92    [000] ....   238.276004: dma_fence_signaled:
> driver=amdgpu timeline=sdma1 context=11 seqno=211
> [  238.180634] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma0
> timeout, signaled seq=32624, emitted seq=32626
> [  238.180641] amdgpu 0000:0a:00.0: GPU reset begin!
> [  238.180641] amdgpu 0000:0a:00.0: GPU reset begin!
> 
> crash detected!
> 
> executing umr -O halt_waves -wa
> No active waves!

Did you use amdgpu.vm_fault_stop=2 parameter ? In case a fault happened that
should have froze GPUs compute units and hence the above command would produce
a lot of wave info.

> 
> 
> executing umr -O verbose -R gfx[.]
> 
> polaris11.gfx.rptr == 1792
> polaris11.gfx.wptr == 1792
> polaris11.gfx.drv_wptr == 1792
> polaris11.gfx.ring[1761] == 0xffff1000    ... 
> polaris11.gfx.ring[1762] == 0xffff1000    ... 
> polaris11.gfx.ring[1763] == 0xffff1000    ... 
> polaris11.gfx.ring[1764] == 0xffff1000    ... 
> polaris11.gfx.ring[1765] == 0xffff1000    ... 
> polaris11.gfx.ring[1766] == 0xffff1000    ... 
> polaris11.gfx.ring[1767] == 0xffff1000    ... 
> polaris11.gfx.ring[1768] == 0xffff1000    ... 
> polaris11.gfx.ring[1769] == 0xffff1000    ... 
> polaris11.gfx.ring[1770] == 0xffff1000    ... 
> polaris11.gfx.ring[1771] == 0xffff1000    ... 
> polaris11.gfx.ring[1772] == 0xffff1000    ... 
> polaris11.gfx.ring[1773] == 0xffff1000    ... 
> polaris11.gfx.ring[1774] == 0xffff1000    ... 
> polaris11.gfx.ring[1775] == 0xffff1000    ... 
> polaris11.gfx.ring[1776] == 0xffff1000    ... 
> polaris11.gfx.ring[1777] == 0xffff1000    ... 
> polaris11.gfx.ring[1778] == 0xffff1000    ... 
> polaris11.gfx.ring[1779] == 0xffff1000    ... 
> polaris11.gfx.ring[1780] == 0xffff1000    ... 
> polaris11.gfx.ring[1781] == 0xffff1000    ... 
> polaris11.gfx.ring[1782] == 0xffff1000    ... 
> polaris11.gfx.ring[1783] == 0xffff1000    ... 
> polaris11.gfx.ring[1784] == 0xffff1000    ... 
> polaris11.gfx.ring[1785] == 0xffff1000    ... 
> polaris11.gfx.ring[1786] == 0xffff1000    ... 
> polaris11.gfx.ring[1787] == 0xffff1000    ... 
> polaris11.gfx.ring[1788] == 0xffff1000    ... 
> polaris11.gfx.ring[1789] == 0xffff1000    ... 
> polaris11.gfx.ring[1790] == 0xffff1000    ... 
> polaris11.gfx.ring[1791] == 0xffff1000    ... 
> polaris11.gfx.ring[1792] == 0xc0032200    rwD 
> 
> trying to get ADR from dmesg output for 'umr -O verbose -vm ...'
> trying to get VMID from dmesg output for 'umr -O verbose -vm ...'
> 
> done after crash, flashing NUMLOCK LED.
>      amdgpu_cs:0-799   [001] ....   286.852838: amdgpu_bo_list_set:
> list=0000000099c16b5c, bo=000000001771c26f, bo_size=131072
>      amdgpu_cs:0-799   [001] ....   286.852846: amdgpu_bo_list_set:
> list=0000000099c16b5c, bo=0000000046bfd439, bo_size=131072
> ...
> ----------------------------------------------
> 
> But sure, there were no "VM_CONTEXT1_PROTECTION_FAULT_ADDR" error messages
> this time. Sometimes such are emitted, sometimes not.


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