[Bug 107945] System crashes seconds after a GPU hang with kernel newer than 4.18

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107945

--- Comment #8 from leozinho29_eu at hotmail.com ---
Considering the steps:

1) A GPU hang must happen (for example, the hangs caused by Vulkan);
2) A task with significant video load is closed (watching a video and then
closing the media player window, for example);
3) When the focus of the window is changed, the system crashes.

To trigger the crash, a GPU hang MUST happen, which is the step 1.

>From there no, it's not 100% chance that doing steps 2 and 3 will trigger the
crash. So I can do that step 2 and 3 a few times with no crash, but then in
another try it may crash.

If estimating a percentage, from my experiences I would say 20% of the times I
do the steps 2 and 3 the crash happens. I would say that, after step 1, the
system will for sure crash later, the question is "how later?".

I will see if I can get a 32 GB pen-drive to install Xubuntu on it to test, as
then the HDD will be powered off and I will be able to test with no risks of
damaging it.

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