[Bug 104919] R9285 4.17-wip locks/vmfaults since drm/amdgpu: revert "drm/amdgpu: use AMDGPU_GEM_CREATE_VRAM_CLEARED for VM PD/PTs" v2

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104919

Andy Furniss  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|NEW |RESOLVED

--- Comment #7 from Andy Furniss  ---
Fix is in affected kernels.

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[Bug 104919] R9285 4.17-wip locks/vmfaults since drm/amdgpu: revert "drm/amdgpu: use AMDGPU_GEM_CREATE_VRAM_CLEARED for VM PD/PTs" v2

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https://bugs.freedesktop.org/show_bug.cgi?id=104919

--- Comment #6 from Andy Furniss  ---
That fixes it, thanks.

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[Bug 104919] R9285 4.17-wip locks/vmfaults since drm/amdgpu: revert "drm/amdgpu: use AMDGPU_GEM_CREATE_VRAM_CLEARED for VM PD/PTs" v2

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104919

Christian König  changed:

   What|Removed |Added

 CC||ckoenig.leichtzumerken@gmai
   ||l.com

--- Comment #5 from Christian König  ---
Created attachment 137166
  --> https://bugs.freedesktop.org/attachment.cgi?id=137166=edit
Possible fix

One thing I've found while looking at the code.

Please test if that fixed the issue.

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[Bug 104919] R9285 4.17-wip locks/vmfaults since drm/amdgpu: revert "drm/amdgpu: use AMDGPU_GEM_CREATE_VRAM_CLEARED for VM PD/PTs" v2

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104919

--- Comment #4 from Andy Furniss  ---
(In reply to Andy Furniss from comment #3)

> Seems good with that.
> Just a quick test as got to be AFK, will try more later.

Still good after a bit more time.

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[Bug 104919] R9285 4.17-wip locks/vmfaults since drm/amdgpu: revert "drm/amdgpu: use AMDGPU_GEM_CREATE_VRAM_CLEARED for VM PD/PTs" v2

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104919

--- Comment #3 from Andy Furniss  ---
(In reply to Christian König from comment #2)
> At least I now knew that the PASID handling is working fine.
> 
> Does it work if you disable the new clear method? E.g. just add a "return
> 0;" to the beginning of amdgpu_vm_clear_bo().

Seems good with that.
Just a quick test as got to be AFK, will try more later.

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[Bug 104919] R9285 4.17-wip locks/vmfaults since drm/amdgpu: revert "drm/amdgpu: use AMDGPU_GEM_CREATE_VRAM_CLEARED for VM PD/PTs" v2

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104919

--- Comment #2 from Christian König  ---
At least I now knew that the PASID handling is working fine.

Does it work if you disable the new clear method? E.g. just add a "return 0;"
to the beginning of amdgpu_vm_clear_bo().

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[Bug 104919] R9285 4.17-wip locks/vmfaults since drm/amdgpu: revert "drm/amdgpu: use AMDGPU_GEM_CREATE_VRAM_CLEARED for VM PD/PTs" v2

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104919

--- Comment #1 from Andy Furniss  ---
Created attachment 137138
  --> https://bugs.freedesktop.org/attachment.cgi?id=137138=edit
error logging from corruption/locks

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[Bug 104919] R9285 4.17-wip locks/vmfaults since drm/amdgpu: revert "drm/amdgpu: use AMDGPU_GEM_CREATE_VRAM_CLEARED for VM PD/PTs" v2

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=104919

Bug ID: 104919
   Summary: R9285 4.17-wip locks/vmfaults since drm/amdgpu: revert
"drm/amdgpu: use AMDGPU_GEM_CREATE_VRAM_CLEARED for VM
PD/PTs" v2
   Product: DRI
   Version: DRI git
  Hardware: Other
OS: All
Status: NEW
  Severity: normal
  Priority: medium
 Component: DRM/AMDgpu
  Assignee: dri-devel@lists.freedesktop.org
  Reporter: adf.li...@gmail.com

last couple of agd5f 4.17-wips have locked with unreal tournament alpha for me
on R9 285.

Seems to be

first bad commit: [d712b817ceb9311cffad47867da26311c06a812b] drm/amdgpu: revert
"drm/amdgpu: use AMDGPU_GEM_CREATE_VRAM_CLEARED for VM PD/PTs" v2

Though it takes a while to lock, and sometimes only after restarting the game,
so slight chance of a false good.

This game requests slightly more than the 2 gig vram I have - maybe relevant if
others have more and can't reproduce.

Attached examples of logging retrieved after a lock. Usually sysrq will do,
once needed hard reset, first chunk got before a lock by quickly quitting the
game after seeing some new artifacts.

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