From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753590Ab1LUV1B (ORCPT ); Wed, 21 Dec 2011 16:27:01 -0500 Received: from os.inf.tu-dresden.de ([141.76.48.99]:58154 "EHLO os.inf.tu-dresden.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751418Ab1LUV07 (ORCPT ); Wed, 21 Dec 2011 16:26:59 -0500 Date: Wed, 21 Dec 2011 22:26:26 +0100 From: Udo Steinberg To: Keith Packard Cc: Linux Kernel Mailing List , dri-devel@lists.freedesktop.org Subject: Re: GPU hung with Linux-3.2-rc6 Message-ID: <20111221222626.0b8c3a30@x220.fritz.box> In-Reply-To: <864nwty9sq.fsf@sumi.keithp.com> References: <20111221195410.5e4c065a@x220.fritz.box> <864nwty9sq.fsf@sumi.keithp.com> X-Mailer: X-Mailer 5.0 Gold Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/pq.Dowg.Cp=z7cgcTmzcP4n"; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/pq.Dowg.Cp=z7cgcTmzcP4n Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Wed, 21 Dec 2011 12:00:37 -0800 Keith Packard (KP) wrote: KP> On Wed, 21 Dec 2011 19:54:10 +0100, Udo Steinberg = wrote: KP> > Hi, KP> >=20 KP> > With Linux-3.2-rc6 I'm frequently seeing GPU hangs when large amounts= of KP> > text scroll in an xterm, such as when extracting a tar archive. Such = as this KP> > one (note the timestamps): KP>=20 KP> Can you try with semaphores disabled? KP>=20 KP> i915.semaphores=3D0 That makes the problem go away. If you need more help tracking down the problem, then let me know. I can reproduce it fairly easily with something as simple as: while true; do dmesg; done KP> And, you should be able to remove the explicit rc6 argument now; if it KP> will work, the kernel should turn it on automatically. Ok. Cheers, - Udo --Sig_/pq.Dowg.Cp=z7cgcTmzcP4n Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk7yTwIACgkQnhRzXSM7nSmk3gCfTOg8AE/rTkkT1w2LsJI+Lbm0 XeoAnjPscc6VayA608FmWBAtjkKphdnN =4vWj -----END PGP SIGNATURE----- --Sig_/pq.Dowg.Cp=z7cgcTmzcP4n--