[Bug 106433] Android: surfaceflinger dies on GPU HANG with latest drm

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https://bugs.freedesktop.org/show_bug.cgi?id=106433

--- Comment #5 from Mauro Rossi <issor.oruam at gmail.com> ---
Created attachment 140072
  --> https://bugs.freedesktop.org/attachment.cgi?id=140072&action=edit
dmesg of several Android GUI restarts

Hi,
as an update I have conducted further tests on Mesa branches 18.0, 18.1
(including also Android-IA patches) and mesa-dev
prior to start blind bisecting, which with my setup would take ages.

The results are that for all versions from 18.0 to mesa-dev I get the same
problem that Android boot does not complete, but the GUI restart does not
happen always at the same time and in the same way.

In most cases the bootanimation is interrupted, in some others GUI freezes at
Status Bar drawing.

Reiterating the GUI restarts for a while I have collected dmesg and logcat
with drm.debug=30 in order to trace for problems happening during several
attempts

Could you please have a look, because GPU hang is not systematic, I'd like to
understand what is causing SurfaceFlinger process to Hang.

Mauro

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