On Wed, 18 May 2011 12:38:44 +0100, Daniel J Blueman <[email protected]> wrote: > Hi Chris et al, > > On my Sandy Bridge GPU (8086:0126 rev 09) laptop, I often see hangs > that are correctly recovered and sometimes ones which aren't (causing > X lockup or kernel hard lock), hurting usability. > > I'm able to reproduce GPU hangs often with the composite tests in > rendercheck (may need to restart a few times): > > $ ./rendercheck -t composite,cacomposite > Begin composite mask test on a8 > <command hang, maybe GPU hang too>
Reproducing use rendercheck is unusual, as that is something that we do run frequently. Looking through the i915_error_state made me wince (lots of 1x1 copies over the same pixel...) but it does remind me of https://bugzilla.kernel.org/show_bug.cgi?id=27892 for which the workaround is to flush the caches after every op (Option "DebugFlushCaches" "True"). -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
