Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261361AbUKNWqV (ORCPT ); Sun, 14 Nov 2004 17:46:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261360AbUKNWqU (ORCPT ); Sun, 14 Nov 2004 17:46:20 -0500 Received: from pastinakel.tue.nl ([131.155.2.7]:61958 "EHLO pastinakel.tue.nl") by vger.kernel.org with ESMTP id S261363AbUKNWqJ (ORCPT ); Sun, 14 Nov 2004 17:46:09 -0500 Date: Sun, 14 Nov 2004 23:45:59 +0100 From: Andries Brouwer To: Andrew Morton Cc: Brad Fitzpatrick , linux-kernel@vger.kernel.org Subject: Re: 2.6.9: unkillable processes during heavy IO Message-ID: <20041114224559.GB20151@pclin040.win.tue.nl> References: <20041114143051.33e2c514.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041114143051.33e2c514.akpm@osdl.org> User-Agent: Mutt/1.4.2i X-Spam-DCC: CollegeOfNewCaledonia: mailhost.tue.nl 1189; Body=1 Fuz1=1 Fuz2=1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 639 Lines: 17 On Sun, Nov 14, 2004 at 02:30:51PM -0800, Andrew Morton wrote: > Brad Fitzpatrick wrote: > > > > Next time it hangs like this, how can I get a kernel backtrace or other useful information > > for a certain process? > > echo t > /proc/sysrq-trigger > dmesg -n 1000000 > foo I suppose you meant s/-n/-s/ With a recent dmesg (util-linux 2.12b or later) no parameter is needed. - 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/