Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759080AbWLAFXH (ORCPT ); Fri, 1 Dec 2006 00:23:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759083AbWLAFXG (ORCPT ); Fri, 1 Dec 2006 00:23:06 -0500 Received: from smtp.osdl.org ([65.172.181.25]:37779 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1759080AbWLAFXD (ORCPT ); Fri, 1 Dec 2006 00:23:03 -0500 Date: Thu, 30 Nov 2006 21:22:48 -0800 From: Andrew Morton To: Igmar Palsenberg Cc: linux-kernel@vger.kernel.org, erich@areca.com.tw Subject: Re: 2.6.16.32 stuck in generic_file_aio_write() Message-Id: <20061130212248.1b49bd32.akpm@osdl.org> In-Reply-To: References: X-Mailer: Sylpheed version 2.2.7 (GTK+ 2.8.17; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 759 Lines: 19 On Wed, 29 Nov 2006 13:41:37 +0100 (CET) Igmar Palsenberg wrote: > I've got a machine which occasionally locks up. I can still sysrq it from > a serial console, so it's not entirely dead. > > A sysrq-t learns me that it's got a large number of httpd processes stuck > in D state : There are known deadlocks in generic_file_write() in kernels up to and including 2.6.17. Pagefaults are involved and I'd need to see the entire sysrq-T output to determine if you're hitting that bug. - 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/