[Mesa-dev] [Bug 106696] repeatable drm:amdgpu_job_timedout with vulkan toy

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue May 29 09:16:09 UTC 2018


https://bugs.freedesktop.org/show_bug.cgi?id=106696

Dave Gilbert <freedesktop at treblig.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|NOTABUG                     |---
             Status|RESOLVED                    |REOPENED

--- Comment #4 from Dave Gilbert <freedesktop at treblig.org> ---
(In reply to Christian K├Ânig from comment #3)
> GPU reset and recovery can be enabled using amdgpu.gpu_recovery=1.
> 
> Otherwise a shader with an endless loop will just keep running forever.

Hmm; that's a dangerous situation.

1) Recovery doesn't work - I tried it, and it did at least make the machine
rebootable, but the GPU state was very broken after the reset attempt.

2) An unprivileged user being able to make the system need & fail to reboot by
default is a security issue; couldn't this be triggered by something like
WebGL?

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