From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keith Packard Subject: Re: Memory corruption starting in i915 code, in 3.2-rc5 Date: Sun, 11 Dec 2011 12:46:14 -0800 Message-ID: <86bore4z1l.fsf@sumi.keithp.com> References: <4EE4F82E.9010801@palosanto.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1750466566==" Return-path: Received: from keithp.com (home.keithp.com [63.227.221.253]) by gabe.freedesktop.org (Postfix) with ESMTP id 8CFE39EB24 for ; Sun, 11 Dec 2011 12:53:17 -0800 (PST) In-Reply-To: <4EE4F82E.9010801@palosanto.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: Alex =?utf-8?Q?Villac=C3=ADs?= Lasso , David Airlie , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1750466566== Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On Sun, 11 Dec 2011 13:36:30 -0500, Alex Villac=C3=ADs Lasso wrote: > My system is a Fedora 16 x86_64 running self-compiled vanilla kernel=20 > (.config attached for -rc5). I am getting an apparent memory corruption=20 > that starts since linux 3.2-rc5. No such corruption was noticed in=20 > 3.2-rc4. On the first instance, I eventually got a NULL pointer=20 > dereference and the screen went black, the keyboard was unresponsive,=20 > and I had to hard-reboot the machine. On the second instance, I managed=20 > to reboot the machine normally. The full message log is attached. An=20 > extract of the first WARNING: The only patch in the i915 code between rc4 and rc5 is a tiny VT-d workaround fix for ILK machines, which does fiddle with how the request linked lists are managed. Can you try reverting eb1711bb94991e93669c5a1b5f84f11be2d51ea1 and see if your problem goes away? =2D-=20 keith.packard@intel.com --=-=-= Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIVAwUBTuUWljYtFsjWk68qAQiTCQ//UizyQevBUTBp4L/z86dPGLITKY108yAo NxsHsjSJb0YjwSBMf44wDlgjwyZ0Ydu3RLQUPOMD/PU932c+ald86WcA9wsT9HJH I8vNfpyBSwcZ8sGKwLPUyzRSzBm2lLkdoHdxSxLZyIlxqwOYymvqQmLc4Opq5iSX LEZ8B2RqjlEUKxulSjjU2i9KEEz4e5lcGvjrxH73pbawHusr8YmutywgolmkeBEd juig4O9zW4Z/7a9ecRisACN8VcNKsnt48rEAXmpCFF3P2MJZVmj+Cboby7y4p4aS b5N7hOMvKFHW9IuGZ2OAcCkZOzGmr07sPrh2T84oDAk/diNq6aNUtCxaBIHqgZfz 48hNGbZL69jUC/ba1ouKYUGIZADA75Rg1l0eHAGBbJqYl6FfJrtLKIwtjd1sb13u BEi+heFQ/viZI0P+ygg49jRda/JV1THvXJKoNSC1/SSwvsqUnAq7Gja9jTjoQae7 u5ui3Uyq1K/bscVadaB8YWTmPQtf0lOZ9W6tIaIwfjxsrNKlvQS9H48h3kWU6V5n tCM+ia2de37Mx+TYAarF6BCH7JpY6LgbkxgVrMfa5osnXVBaYqZTqSfFZOza1Elz 5V7TAtjT3CHEdcQRJs+XcgvSkBSqppxHY17t+YtQKSdyI16GA27AcU6u9EJL5nKO sMWFBWG/GqU= =KH7r -----END PGP SIGNATURE----- --=-=-=-- --===============1750466566== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel --===============1750466566==--