From: Chris Wilson <chris@chris-wilson.co.uk>
To: Daniel J Blueman <daniel.blueman@gmail.com>
Cc: intel-gfx@lists.freedesktop.org, Keith Packard <keith.packard@intel.com>
Subject: Re: Sandy Bridge GPU hang reproducer...
Date: Wed, 18 May 2011 19:04:47 +0100 [thread overview]
Message-ID: <e0d58a$fki7@orsmga002.jf.intel.com> (raw)
In-Reply-To: <BANLkTimKiP0W0A3pQRS7iA-wVibYU+aEtw@mail.gmail.com>
On Wed, 18 May 2011 12:38:44 +0100, Daniel J Blueman <daniel.blueman@gmail.com> 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
next prev parent reply other threads:[~2011-05-18 18:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-18 11:38 Sandy Bridge GPU hang reproducer Daniel J Blueman
2011-05-18 18:04 ` Chris Wilson [this message]
2011-05-20 10:10 ` Daniel J Blueman
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