From owner-freebsd-fs@FreeBSD.ORG Mon Apr 28 05:35:33 2008 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5F0EF1065673; Mon, 28 Apr 2008 05:35:33 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.delphij.net (unknown [IPv6:2001:470:1f03:2c9::2]) by mx1.freebsd.org (Postfix) with ESMTP id 1468C8FC13; Mon, 28 Apr 2008 05:35:32 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.geekcn.org (tarsier.geekcn.org [202.108.54.204]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by tarsier.delphij.net (Postfix) with ESMTPS id 0372528449; Mon, 28 Apr 2008 13:35:28 +0800 (CST) Received: from localhost (tarsier.geekcn.org [202.108.54.204]) by tarsier.geekcn.org (Postfix) with ESMTP id B5B3BEB73F9; Mon, 28 Apr 2008 13:35:27 +0800 (CST) X-Virus-Scanned: amavisd-new at geekcn.org Received: from tarsier.geekcn.org ([202.108.54.204]) by localhost (mail.geekcn.org [202.108.54.204]) (amavisd-new, port 10024) with ESMTP id PG8oHbNk0H0K; Mon, 28 Apr 2008 13:35:18 +0800 (CST) Received: from charlie.delphij.net (c-69-181-135-56.hsd1.ca.comcast.net [69.181.135.56]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by tarsier.geekcn.org (Postfix) with ESMTPSA id DE9CDEB73D7; Mon, 28 Apr 2008 13:35:15 +0800 (CST) DomainKey-Signature: a=rsa-sha1; s=default; d=delphij.net; c=nofws; q=dns; h=message-id:date:from:reply-to:organization:user-agent: mime-version:to:cc:subject:x-enigmail-version:openpgp:content-type:content-transfer-encoding; b=Qwyxu08d6yEWoAuQm02dR7Zf9mTnFhKEq71MvXb36bNJqaI0OduipHwIyII+zix42 FoIiovsahlh1KJBpHAWTg== Message-ID: <4815620F.3090005@delphij.net> Date: Sun, 27 Apr 2008 22:35:11 -0700 From: Xin LI Organization: The FreeBSD Project User-Agent: Thunderbird 2.0.0.12 (X11/20080422) MIME-Version: 1.0 To: freebsd-fs@freebsd.org X-Enigmail-Version: 0.95.6 OpenPGP: id=18EDEBA0; url=http://www.delphij.net/delphij.asc Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Jeff Roberson , kib@FreeBSD.org Subject: [7.0-R] Possible ufs livelock during coredump path? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: d@delphij.net List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Apr 2008 05:35:33 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, It seems that we have a potential livelock during coredump on 7.0-R, the case was that two processes trying to coredump in the same time (e.g. if I configure kern.corefile=/var/tmp/%N.core and a lot of instances coredump in the same time), perhaps when paging involved with it. Upon reboot, it would not recover but wait infinitely. The box is running 7.0-R/i386, UP (Origin = "GenuineIntel" Id = 0xf34 Stepping = 4). Is this an known issue? This is my own server but I do not have my hands on it because it is in China, however I can provide some help if the experiment can be recovered with a power-cycle :) Cheers, - -- Xin LI http://www.delphij.net/ FreeBSD - The Power to Serve! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkgVYg8ACgkQi+vbBBjt66DTMQCfXQ4q327phAzDeEmUhtgUoJxS Ap8AniSdbCY0HN9m5wf9nAbKyLFifUQg =V94G -----END PGP SIGNATURE-----