From: Chris Wilson <chris@chris-wilson.co.uk>
To: Daniel Vetter <daniel@ffwll.ch>, CC <ccomren@gmail.com>
Cc: intel-gfx@lists.freedesktop.org, Ben Widawsky <ben@bwidawsk.net>
Subject: Re: I've got the RC6 bug
Date: Wed, 18 Jan 2012 11:17:52 +0000 [thread overview]
Message-ID: <e0d58a$2v9e3m@orsmga002.jf.intel.com> (raw)
In-Reply-To: <20120118002426.GB4093@phenom.ffwll.local>
On Wed, 18 Jan 2012 01:24:26 +0100, Daniel Vetter <daniel@ffwll.ch> wrote:
> On Wed, Jan 18, 2012 at 01:16:02AM +0100, CC wrote:
> > I attached the error state.
>
> Nice one, your gpu seems to have simply disappeared. And the ringbuffer
> contains a rather peculiar cmd sequence. Putting Chris (maybe he
> recognizes the pattern) and Ben (he's got a patch in the works to dump a
> debug register that might be interesting here) on cc. It's too late atm
> for me to think about this some more.
Not simply disappeared, someone clobbered it with an extremely large
hammer. The GPU was killed by a stray write to address 0 which took out
the render ring buffer and its hws page. So my first thought is a
missing relocation, and i965g springs to mind.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2012-01-18 11:18 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-16 16:18 I've got the RC6 bug CC
2012-01-16 16:36 ` Daniel Vetter
2012-01-18 0:16 ` CC
2012-01-18 0:24 ` Daniel Vetter
2012-01-18 11:17 ` Chris Wilson [this message]
2012-01-18 17:51 ` Eric Anholt
2012-01-18 20:09 ` Daniel Vetter
2012-01-20 10:30 ` Daniel Vetter
2012-01-20 10:46 ` Daniel Vetter
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