[Bug 112157] [CI][SHARDS]igt at kms_frontbuffer_tracking@psr-modesetfrombusy - dmesg-warn - GEM_BUG_ON(((tail) & ~((typeof(tail))((64)-1))) == ((ring->head) & ~((typeof(ring->head))((64)-1))) && tail < ring->head)

Tue Oct 29 11:41:18 UTC 2019

https://bugs.freedesktop.org/show_bug.cgi?id=112157

--- Comment #2 from Chris Wilson <chris at chris-wilson.co.uk> ---
At least this has happened more than once, so we may be in luck and be able to
add some more debug.

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[Bug 112157] [CI][SHARDS]igt at kms_frontbuffer_tracking@psr-modesetfrombusy - dmesg-warn - GEM_BUG_ON(((tail) & ~((__typeof__(tail))((64)-1))) == ((ring->head) & ~((__typeof__(ring->head))((64)-1))) && tail < ring->head)

[Bug 112157] [CI][SHARDS]igt at kms_frontbuffer_tracking@psr-modesetfrombusy - dmesg-warn - GEM_BUG_ON(((tail) & ~((typeof(tail))((64)-1))) == ((ring->head) & ~((typeof(ring->head))((64)-1))) && tail < ring->head)