[Bug 85058] [snb][regression] Crash when scaling Java application window

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85058

--- Comment #8 from Chris Wilson <chris at chris-wilson.co.uk> ---
The root cause is that the ShmPixmap doesn't appear to be valid. The final
failure is that we recuse inside our execbuffer trying to fix things up. That
at least should be fixed by

commit 9a5ca59d2b7b209e6f56dd3f94d4ae6f06e1ecdc
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Oct 15 16:51:42 2014 +0100

    sna: Prevent recursion during last-gasp disabling of outputs

    If we fail an execbuffer, we disable outputs and try again. (In case we
    have severe fragmentation issues and need to rearrange the scanouts in
    GTT.) Afterwards we re-enable the outputs, but this causes us to flush
    the pending rendering and so recurse into the execbuffer. Prevent this
    with a slight hack during enabling of outputs.

    References: https://bugs.freedesktop.org/show_bug.cgi?id=85058
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

and so now when you resize, it should just blink and complain bitterly instead.

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