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

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102322

--- Comment #58 from dwagner <jb5sgc1n.nya at 20mm.eu> ---
Here comes another trace log, with your info2.patch applied.

Something must have changed since the last test, as it took pretty long this
time to reproduce the crash. Could that have been caused by
https://cgit.freedesktop.org/~agd5f/linux/commit/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c?h=amd-staging-drm-next&id=b385925f3922faca7435e50e31380bb2602fd6b8
now being part of the kernel?

However, the latest trace you find attached below is not much different to the
last one, xzcat /tmp/gpu_debug5.txt.xz  | grep '^\[' will tell you:

[ 1510.023112] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma0 timeout,
signaled seq=475104, emitted seq=475106
[ 1510.023117] [drm] GPU recovery disabled.

     amdgpu_cs:0-806   [012] ....  1787.493126: amdgpu_vm_bo_cs:
soffs=00001001a0, eoffs=00001001b9, flags=70
     amdgpu_cs:0-806   [012] ....  1787.493127: amdgpu_vm_bo_cs:
soffs=0000100200, eoffs=00001021e0, flags=70
     amdgpu_cs:0-806   [012] ....  1787.493127: amdgpu_vm_bo_cs:
soffs=0000102200, eoffs=00001041e0, flags=70
     amdgpu_cs:0-806   [012] ....  1787.493129: amdgpu_vm_bo_cs:
soffs=000010c1e0, eoffs=000010c2e1, flags=70
     amdgpu_cs:0-806   [012] ....  1787.493131: drm_sched_job:
entity=00000000406345a7, id=10239, fence=000000007a120377, ring=gfx, job
count:8, hw job count:0

And later in the file you can find:
------------------------------------------------------
crash detected!

executing umr -O halt_waves -wa
No active waves!

executing umr -O verbose -R gfx[.]

polaris11.gfx.rptr == 512
polaris11.gfx.wptr == 512
polaris11.gfx.drv_wptr == 512
polaris11.gfx.ring[ 481] == 0xffff1000    ... 
polaris11.gfx.ring[ 482] == 0xffff1000    ... 
polaris11.gfx.ring[ 483] == 0xffff1000    ... 
polaris11.gfx.ring[ 484] == 0xffff1000    ... 
polaris11.gfx.ring[ 485] == 0xffff1000    ... 
polaris11.gfx.ring[ 486] == 0xffff1000    ... 
polaris11.gfx.ring[ 487] == 0xffff1000    ... 
polaris11.gfx.ring[ 488] == 0xffff1000    ... 
polaris11.gfx.ring[ 489] == 0xffff1000    ... 
polaris11.gfx.ring[ 490] == 0xffff1000    ... 
polaris11.gfx.ring[ 491] == 0xffff1000    ... 
polaris11.gfx.ring[ 492] == 0xffff1000    ... 
polaris11.gfx.ring[ 493] == 0xffff1000    ... 
polaris11.gfx.ring[ 494] == 0xffff1000    ... 
polaris11.gfx.ring[ 495] == 0xffff1000    ... 
polaris11.gfx.ring[ 496] == 0xffff1000    ... 
polaris11.gfx.ring[ 497] == 0xffff1000    ... 
polaris11.gfx.ring[ 498] == 0xffff1000    ... 
polaris11.gfx.ring[ 499] == 0xffff1000    ... 
polaris11.gfx.ring[ 500] == 0xffff1000    ... 
polaris11.gfx.ring[ 501] == 0xffff1000    ... 
polaris11.gfx.ring[ 502] == 0xffff1000    ... 
polaris11.gfx.ring[ 503] == 0xffff1000    ... 
polaris11.gfx.ring[ 504] == 0xffff1000    ... 
polaris11.gfx.ring[ 505] == 0xffff1000    ... 
polaris11.gfx.ring[ 506] == 0xffff1000    ... 
polaris11.gfx.ring[ 507] == 0xffff1000    ... 
polaris11.gfx.ring[ 508] == 0xffff1000    ... 
polaris11.gfx.ring[ 509] == 0xffff1000    ... 
polaris11.gfx.ring[ 510] == 0xffff1000    ... 
polaris11.gfx.ring[ 511] == 0xffff1000    ... 
polaris11.gfx.ring[ 512] == 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.
-------------------------------------------

So even without GPU reset, still no "waves". And the error message also does
not state any VM fault address.

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