[Bug 110848] Everything using GPU gets stuck after running+killing parallel Media loads (after running 3D benchmarks)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110848

--- Comment #24 from David Weinehall <david.weinehall at intel.com> ---
I managed to find an easy way to reproduce unrecoverable hangs. The full test
set isn't necessary; it's enough to run 5-10 iterations of the
gstreamer_hd22_p50 testcase.

Eero's lockdep enabled configuration wasn't enough (I'm assuming he used the
options you provided), but I enabled a few more debugging options which gave
quite a lot of output--hopefully some of it useful. dmesg attached (well, as
much as fit in the scrollback on the console where I followed it).

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