Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754189AbZGBBDU (ORCPT ); Wed, 1 Jul 2009 21:03:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752393AbZGBBDN (ORCPT ); Wed, 1 Jul 2009 21:03:13 -0400 Received: from 69-30-77-85.dq1sn.easystreet.com ([69.30.77.85]:47896 "EHLO kingsolver.anholt.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750907AbZGBBDM (ORCPT ); Wed, 1 Jul 2009 21:03:12 -0400 Subject: Re: X server hung, kernel said "task blocked for >120 secs" (2.6.30) From: Eric Anholt To: Sanjoy Mahajan Cc: Andrew Morton , linux-kernel@vger.kernel.org, dri-devel@lists.sourceforge.net In-Reply-To: References: Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-lYg+CWomkDZh4fL3wukq" Date: Wed, 01 Jul 2009 18:03:15 -0700 Message-Id: <1246496595.16527.3.camel@gaiman.anholt.net> Mime-Version: 1.0 X-Mailer: Evolution 2.26.1.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1611 Lines: 48 --=-lYg+CWomkDZh4fL3wukq Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Wed, 2009-07-01 at 12:48 -0400, Sanjoy Mahajan wrote: > [Have been away for 10 days and just saw the message] >=20 > > I assume this is a regression? Since 2.6.29? >=20 > I never saw it before using 2.6.30 and haven't been able to reproduce > it even running 2.6.30. =20 >=20 > So it could be a regression. Or it could be a recurring problem (I had > a few X lockups with earlier kernels) now exposed by a blocked-task > timer (the "INFO: task events/0:9 blocked for more than 120 seconds" > message) -- if that notification code is new in 2.6.30? This message appears when the GPU is hung but somebody is still trying to use it. The problem is that the GPU is hung, not the presence of the message (so you can't use the message to indicate any particular bug, and the bug is almost always in userland). --=20 Eric Anholt eric@anholt.net eric.anholt@intel.com --=-lYg+CWomkDZh4fL3wukq Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEUEABECAAYFAkpMB1MACgkQHUdvYGzw6vd1+gCdGe5ZIzOxypjEsejRT/GVgFCM l+kAmMgj6dcuCdKDKaNvLeOFDfITXOs= =wuJT -----END PGP SIGNATURE----- --=-lYg+CWomkDZh4fL3wukq-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/