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Subject: Re: Revert 737a3bb9416ce2a7c7a4170852473a4fcc9c67e8 ?
From: Michel =?ISO-8859-1?Q?D=E4nzer?= <michel@daenzer.net>
To: Gabriel Paubert <paubert@iram.es>
Date: Wed, 13 Apr 2011 14:12:16 +0200
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Cc: Greg KH <greg@kroah.com>, linuxppc-dev@lists.ozlabs.org,
	dri-devel@lists.freedesktop.org, LKML <linux-kernel@vger.kernel.org>,
	Uwe =?ISO-8859-1?Q?Kleine-K=F6nig?= <u.kleine-koenig@pengutronix.de>,
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On Mit, 2011-04-13 at 09:59 +0200, Gabriel Paubert wrote:=20
> On Tue, Apr 12, 2011 at 07:29:22PM +0200, Michel D=C3=A4nzer wrote:
> > On Die, 2011-04-12 at 14:00 +0200, Gabriel Paubert wrote:
> > > On Tue, Apr 12, 2011 at 01:46:10PM +0200, Michel D=C3=A4nzer wrote:
> > > > >=20
> > > > > With no_wb=3D1 the driver goes a bit further but the X server end=
s
> > > > > up in an infinite ioctl loop and the logs are:=20
> > > >=20
> > > > Which ioctl does it loop on? Please provide the Xorg.0.log file as =
well.
> > >=20
> > > From memory, the code was 0x64, which is DRM_RADEON_GEM_WAIT_IDLE.
> >=20
> > Note that it's normal for this ioctl to be called every time before the
> > GPU accessible pixmap memory is accessed by the CPU. Unless the ioctl
> > always returns an error, this may not indicate a problem on its own.=
=20
>=20
> It seems to be an infinite loop, always returning EINTR because
> of regular SIGALRM delivery.

That does sound like the GPU locks up. Do you get any messages in dmesg
about lockups and attempts to reset the GPU at any time?


--=20
Earthling Michel D=C3=A4nzer           |                http://www.vmware.c=
om
Libre software enthusiast         |          Debian, X and DRI developer