[Bug 80229] [HSW] hang loading ctx

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80229

--- Comment #32 from dhead666 <myfoolishgames at gmail.com> ---
I also see the following error messages:
[drm:ivybridge_set_fifo_underrun_reporting] *ERROR* uncleared fifo underrun on
pipe A
[drm:ivb_err_int_handler] *ERROR* Pipe A FIFO underrun

I believe they appears when:
* Running X (rootless) on tty1 and changing to tty2.
* Running X (rootless) on tty1, Wayland on tt2, after running some X apps on
the Wayland session it crashes and usually output the error message.
All sessions are Gnome desktop.

I enabled i915.mmio_debug=1, I don't know if more debug details added to the
gpu crash dump but here's it:
https://www.dropbox.com/s/47xsk1yllvrczfr/3.17rc6_gpu_crash_dump_fifo_underrun.log?dl=0

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