Bug 110422 - AMD_DEBUG=forcedma will crash OpenGL aps with SIGFAULT on VegaM 8706G
Summary: AMD_DEBUG=forcedma will crash OpenGL aps with SIGFAULT on VegaM 8706G
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Gallium/radeonsi (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
QA Contact: Default DRI bug account
Depends on:
Reported: 2019-04-14 16:01 UTC by Dimitar Atanasov
Modified: 2019-06-04 15:00 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Unigen Heaven same command (5.33 KB, text/plain)
2019-04-14 16:01 UTC, Dimitar Atanasov

Description Dimitar Atanasov 2019-04-14 16:01:12 UTC
Created attachment 143966 [details]
Unigen Heaven same command

DRI_PRIME=1 AMD_DEBUG=forcedma glxinfo

[26320.370012] amdgpu 0000:01:00.0: GPU pci config reset
[26332.450816] [drm] PCIE GART of 256M enabled (table at 0x000000F400000000).
[26332.574698] [drm] UVD and UVD ENC initialized successfully.
[26332.684628] [drm] VCE initialized successfully.
[26332.747280] glxinfo[28470]: segfault at 0 ip 0000000000000000 sp 00007fff9ef92e08 error 14 in glxinfo[56271c220000+c000]
[26332.747284] Code: Bad RIP value.

but same command with glxgears work correct.
Unigen will crash also
Comment 1 Pierre-Eric Pelloux-Prayer 2019-06-03 19:12:15 UTC
Should be fixed on master by https://gitlab.freedesktop.org/mesa/mesa/commit/4583f09caa5aef719a1eec282f24a86c789cbba6.

Can you test and confirm?
Comment 2 Dieter Nützel 2019-06-04 00:31:24 UTC
(In reply to Pierre-Eric Pelloux-Prayer from comment #1)
> Should be fixed on master by
> https://gitlab.freedesktop.org/mesa/mesa/commit/
> 4583f09caa5aef719a1eec282f24a86c789cbba6.
> Can you test and confirm?

Hello Pierre-Eric,

I can confirm with Polaris 20 (RX580) running Unigine_Heaven-4.0 with

SOURCE/Unigine_Heaven-4.0> echo $AMD_DEBUG 
SOURCE/Unigine_Heaven-4.0> echo $R600_DEBUG 

sigfaulted for me before, too.
Could be closed after Dimitar confirmed, too.

BTW Are you one of the 'new' AMD OSS guys?
Comment 3 Dimitar Atanasov 2019-06-04 09:11:52 UTC
Working correct now with Vega M. Please close.

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