@leozinho29-eu The kernel from comment 34 was just a plain 5.4.0-26
kernel, with nothing added to it (which wasn't intentional). Could you
reproduce the atomic update failure messages with an official Ubuntu
kernel installed, and then create a new launchpad bug for it?
Given that you encountered the atomic update failures with comment 34's
kernel, which was just an unmodified Ubuntu kernel, I don't think the
problem is related to the fix for this bug.
The bisect from your duplicate doesn't make sense, but I think there's a
reasonable explanation for that. This kernel panic is caused by a race,
so any changes to code that could affect the timing of the GPU driver's
code execution, in some indirect way, could either exacerbate or
alleviate the crash.
That said, there is a clear diagnosis for this bug, and it is definitely
fixed by the upstream commit da42104f589d ("drm/i915: Hold reference to
intel_frontbuffer as we track activity").
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https://bugs.launchpad.net/bugs/1868551
Title:
Intel GPU Hangs : random screen freezing w/ Ubuntu 20.04 (Linux 5.4)
i915_active_acquire
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