[Bug 111481] AMD Navi GPU frequent freezes on both Manjaro/Ubuntu with kernel 5.3 and mesa 19.2 -git/llvm9

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111481

L.S.S. <ragnaros39216 at yandex.com> changed:

           What    |Removed                     |Added
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 Attachment #145807|0                           |1
        is obsolete|                            |

--- Comment #163 from L.S.S. <ragnaros39216 at yandex.com> ---
Created attachment 145814
  --> https://bugs.freedesktop.org/attachment.cgi?id=145814&action=edit
Newly captured GCVM_L2_PROTECTION_FAULT errors. This was captured on 5.4(rc)
kernel, and with AMD_DEBUG=nodma.

I got a few more freezes when using Nemo. This time with AMD_DEBUG=nodma or
AMD_DEBUG="nodma,nongg".

I put AMD_DEBUG to /etc/environment, and I can indeed confirm it from terminal
(echo $AMD_DEBUG). It seems this doesn't work, as the freezes I got this time
are also sdma0 type, same as before.

I also captured some new GCVM_L2_PROTECTION_FAULT errors. Not sure if they're
different from last time. This is captured on 5.4(rc) kernel with
AMD_DEBUG=nodma.

In the end, the sdma0 error doesn't seem to go away and I'm not even sure
whether the parameter was set correctly. Where am I supposed to put the
AMD_DEBUG parameters on Manjaro?

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