Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757513AbZATFcw (ORCPT ); Tue, 20 Jan 2009 00:32:52 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750935AbZATFcm (ORCPT ); Tue, 20 Jan 2009 00:32:42 -0500 Received: from out02.mta.xmission.com ([166.70.13.232]:55727 "EHLO out02.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750819AbZATFcl (ORCPT ); Tue, 20 Jan 2009 00:32:41 -0500 Message-ID: <497561E8.9070902@hathawaymix.org> Date: Mon, 19 Jan 2009 22:32:24 -0700 From: Shane Hathaway User-Agent: Thunderbird 2.0.0.19 (X11/20090106) MIME-Version: 1.0 To: Jeff Dike CC: linux-kernel@vger.kernel.org, user-mode-linux-devel@lists.sourceforge.net References: <49754AB5.3000701@hathawaymix.org> <20090120045959.GA18187@c2.user-mode-linux.org> In-Reply-To: <20090120045959.GA18187@c2.user-mode-linux.org> X-Enigmail-Version: 0.95.7 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-XM-SPF: eid=;;;mid=;;;hst=mx03.mta.xmission.com;;;ip=166.70.244.130;;;frm=shane@hathawaymix.org;;;spf=none X-XM-DomainKey: sender_domain=hathawaymix.org;;;sender=shane@hathawaymix.org;;;status=no signature X-SA-Exim-Connect-IP: 166.70.244.130 X-SA-Exim-Mail-From: shane@hathawaymix.org X-Spam-DCC: XMission; sa02 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: ;Jeff Dike X-Spam-Relay-Country: X-Spam-Report: * -1.8 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.0 T_TM2_M_HEADER_IN_MSG BODY: T_TM2_M_HEADER_IN_MSG * -2.6 BAYES_00 BODY: Bayesian spam probability is 0 to 1% * [score: 0.0000] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa02 1397; Body=1 Fuz1=1 Fuz2=1] * 0.0 XM_SPF_Neutral SPF-Neutral Subject: Re: [Patch] UML: spurious interrupt freezes guest X-SA-Exim-Version: 4.2.1 (built Thu, 07 Dec 2006 04:40:56 +0000) X-SA-Exim-Scanned: Yes (on mx03.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1379 Lines: 31 Jeff Dike wrote: > On Mon, Jan 19, 2009 at 08:53:25PM -0700, Shane Hathaway wrote: >> A new instance of user mode linux that I created over the past couple of >> days worked pretty well except that it had a habit of freezing after a >> few minutes. Every time it froze, the last message on the console was >> either: >> >> spurious interrupt in ubd_handler, err = 4 > > What version and what's the workload? I got the spurious interrupt with both Linux 2.6.28.1 and 2.6.27.12 as guests. The host runs 2.6.9-42.0.3.ELsmp. I am putting OpenVPN and Asterisk inside the guest. The guest is based on Ubuntu 8.10. The spurious interrupt happened more often when I restricted the guest's RAM. The processes in the guest normally consume a total of about 20-24 MB of RAM. I limited the guest's RAM to 48 MB and gave it a 64 MB swap partition. When I gave the guest only 32 MB, the spurious interrupt seemed to happen more often. The best way I found to trigger the spurious interrupt was to try to "apt-get install" many packages at once. The download would succeed, but the guest would freeze partway through the install. Shane -- 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/