From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7EF0A7F59 for ; Tue, 29 Jan 2013 15:13:58 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6DF62304059 for ; Tue, 29 Jan 2013 13:13:55 -0800 (PST) Received: from thunder.skymagik.net (thunder.skymagik.net [76.75.207.68]) by cuda.sgi.com with ESMTP id vjv5jFgiayYKtcaf for ; Tue, 29 Jan 2013 13:13:54 -0800 (PST) Message-ID: <25999.192.104.24.222.1359494034.squirrel@secure.skymagik.net> Date: Tue, 29 Jan 2013 16:13:54 -0500 (EST) Subject: Re: XFS appears to cause strange hang with md raid1 on reboot From: "Tom" In-Reply-To: <20130129151833.GF27055@sgi.com> References: <32271.192.104.24.222.1359415698.squirrel@secure.skymagik.net> <20130129151833.GF27055@sgi.com> MIME-Version: 1.0 List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: bpm@sgi.com Cc: storm9c1@skymagik.com, xfs@oss.sgi.com In a previous message, Ben Myers wrote: > > I took a brief look at your report. I think a traceback would be > helpful. > > echo t > /proc/sysrq-trigger should do the trick. You're in the middle > of unmount so you might need to go serial console to capture the output. > Your report metions freeze/thaw. This is an area where we've had > deadlocks in the past, so I wouldn't be surprised if that is what you're > hitting. We'll have to see. > Hi Ben, Sure. If I do a reboot, and let it go through the motions, then I let it hang for more than 120 seconds, sometimes it displays a traceback on it's own. If not, I can trigger it from the serial console (though probably with break-t instead since this happens at the very end of the shutdown sequence, so no access to the shell). I'll have access to the test systems tonight and will get a traceback. I'll also post what is displayed during the shutdown process right before the hang. Thanks again for your help. -- Tom _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs