From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262734AbVGKWS3 (ORCPT ); Mon, 11 Jul 2005 18:18:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262756AbVGKWPt (ORCPT ); Mon, 11 Jul 2005 18:15:49 -0400 Received: from smtp004.mail.ukl.yahoo.com ([217.12.11.35]:64677 "HELO smtp004.mail.ukl.yahoo.com") by vger.kernel.org with SMTP id S262700AbVGKWNg (ORCPT ); Mon, 11 Jul 2005 18:13:36 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.it; h=Received:From:To:Subject:Date:User-Agent:Cc:References:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-Disposition:Message-Id; b=ROxvKNnbn/+XEcqRBCRLG6G7T/zaMBfxkllz2VKrFflvREohDA8Nisx1ey9TcTcASvXh8oafLR1+zhpFXtW5fAQBgZ25/hbBXFUQ+wemkHXzK2VNI2Pdm3RTWfMrKWif3kFjTM3Hxxvct7myQXiChKYuZBUOfC6JFdjOSFqDLZA= ; From: Blaisorblade To: user-mode-linux-devel@lists.sourceforge.net Subject: Re: [uml-devel] unregister_netdevice: waiting for tap24 to become free Date: Tue, 12 Jul 2005 00:20:52 +0200 User-Agent: KMail/1.8.1 Cc: Peter , linux-kernel@vger.kernel.org References: <20050709110143.D59181E9EA4@zion.home.lan> <20050709120703.C2175@flint.arm.linux.org.uk> <42D2C487.60302@rimuhosting.com> In-Reply-To: <42D2C487.60302@rimuhosting.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200507120020.52418.blaisorblade@yahoo.it> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Monday 11 July 2005 21:12, Peter wrote: > Hi. I am hitting a bug that manifests in an unregister_netdevice error > message. After the problem is triggered processes like ifconfig, tunctl > and route refuse to exit, even with killed. Even from the "D" state below, it's clear that there was a deadlock on some semaphore, related to tap24... Could you search your kernel logs for traces of an Oops? > And the only solution I > have found to regaining control of the server is issuing a reboot. > The server is running a number of tap devices. (It is a UML host server > running the skas patches http://www.user-mode-linux.org/~blaisorblade/). > > Regards, Peter > > # uname -r > 2.6.11.7-skas3-v8 > > unregister_netdevice: waiting for tap24 to become free. Usage count = 1 > unregister_netdevice: waiting for tap24 to become free. Usage count = 1 > unregister_netdevice: waiting for tap24 to become free. Usage count = 1 > unregister_netdevice: waiting for tap24 to become free. Usage count = 1 > unregister_netdevice: waiting for tap24 to become free. Usage count = 1 > unregister_netdevice: waiting for tap24 to become free. Usage count = 1 > unregister_netdevice: waiting for tap24 to become free. Usage count = 1 > > > 30684 ? DW 0:45 \_ [tunctl] > 31974 ? S 0:00 /bin/bash ./monitorbw.sh > 31976 ? S 0:00 \_ /bin/bash ./monitorbw.sh > 31978 ? D 0:00 \_ /sbin/ifconfig > 31979 ? S 0:00 \_ grep \(tap\)\|\(RX bytes\) > 32052 ? S 0:00 /bin/bash /opt/uml/umlcontrol.sh start --user > gildersleeve.de > 32112 ? S 0:00 \_ /bin/bash /opt/uml/umlrun.sh --user > gildersleeve.de > 32152 ? S 0:00 \_ /bin/bash ./umlnetworksetup.sh > --check --user gildersleeve.de > 32176 ? D 0:00 \_ tunctl -u gildersleeve.de -t tap24 > > > ------------------------------------------------------- > This SF.Net email is sponsored by the 'Do More With Dual!' webinar > happening July 14 at 8am PDT/11am EDT. We invite you to explore the latest > in dual core and dual graphics technology at this free one hour event > hosted by HP, AMD, and NVIDIA. To register visit > http://www.hp.com/go/dualwebinar > _______________________________________________ > User-mode-linux-devel mailing list > User-mode-linux-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894) http://www.user-mode-linux.org/~blaisorblade ___________________________________ Yahoo! Messenger: chiamate gratuite in tutto il mondo http://it.beta.messenger.yahoo.com