From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751865Ab1GMVnK (ORCPT ); Wed, 13 Jul 2011 17:43:10 -0400 Received: from sous-sol.org ([216.99.217.87]:58023 "EHLO sequoia.sous-sol.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750977Ab1GMVnI (ORCPT ); Wed, 13 Jul 2011 17:43:08 -0400 Date: Wed, 13 Jul 2011 14:42:50 -0700 From: Chris Wright To: Stratos Psomadakis Cc: lkml , Chris Wright , Greg Kroah-Hartman , David Woodhouse , kernel@gentoo.org Subject: Re: -stable commit 87cc4d1e (bisected) causes system freeze Message-ID: <20110713214250.GW15844@sequoia.sous-sol.org> References: <4E1DEA24.3010109@gentoo.org> <4E1DF736.9020908@gentoo.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <4E1DF736.9020908@gentoo.org> User-Agent: Mutt/1.5.20 (2009-08-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Stratos Psomadakis (psomas@gentoo.org) wrote: > On 13/07/2011 09:55 μμ, Stratos Psomadakis wrote: > > On 13/07/2011 05:28 μμ, Marcus Becker wrote: > >> Hi, > >> > >> With the upgrade to 2.6.39.2, I cannot copy more than ~1GB of data > >> over the network before my input devices lock up. > >> Example: > >> use scp on tty1 to copy a folder or file larger than 3GB over my > >> gigabit network and after ~1min the keyboard stops responding. > >> use cp on tty1 with an nfs-3 share mounted over the same network and > >> try to copy the same file, same happens > >> > >> I can hit ctrl+c for about 20-30 sec and eventually get an interrupt > >> that stops the copying, then the input devices slowly gain control > >> again. If I do the same on X, there is no chance to get in between and > >> I have to use SysRq to reboot. > >> > >> In our bug report at https://bugs.gentoo.org/show_bug.cgi?id=373109 > >> We did a bisect between 2.6.39.1 and 2.6.39.2 and found the following > >> patch is causing this problem: > >> > >> commit 87cc4d1e3e05af38c7c51323a3d86fe2572ab033 > >> Author: Chris Wright > >> Date: Sat May 28 13:15:04 2011 -0500 > >> > >> intel-iommu: Dont cache iova above 32bit > >> > >> I will also attach dmesg, current kernel config, and my bisect log (I > >> put a uname -a into the log after each bisect) plus git bisect log > >> > >> Please let me know if you need more information. > >> > >> Thanks, > >> > >> Marcus > > CC'ed the people who signed-off the patch. > > > Bug #39312 [1] at b.k.o > > [1] https://bugzilla.kernel.org/show_bug.cgi?id=39312 Thanks for the cc, looking into it. Would be useful to get details of the boxes that are showing the issue (full dmesg from boot and lspci).