From owner-freebsd-stable@FreeBSD.ORG Mon Jun 9 16:58:03 2008 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C0E271065674 for ; Mon, 9 Jun 2008 16:58:03 +0000 (UTC) (envelope-from prvs=pschmehl_lists=039a102a6@tx.rr.com) Received: from ip-relay-002.utdallas.edu (ip-relay-002.utdallas.edu [129.110.20.112]) by mx1.freebsd.org (Postfix) with ESMTP id 940288FC1F for ; Mon, 9 Jun 2008 16:58:03 +0000 (UTC) (envelope-from prvs=pschmehl_lists=039a102a6@tx.rr.com) X-IronPort-AV: E=Sophos;i="4.27,613,1204524000"; d="scan'208";a="1186004" Received: from smtp3.utdallas.edu ([129.110.20.110]) by ip-relay-002.utdallas.edu with ESMTP; 09 Jun 2008 11:29:18 -0500 Received: from utd65257.utdallas.edu (utd65257.utdallas.edu [129.110.3.28]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp3.utdallas.edu (Postfix) with ESMTPSA id C7D5423DEA for ; Mon, 9 Jun 2008 11:29:18 -0500 (CDT) Date: Mon, 09 Jun 2008 11:29:18 -0500 From: Paul Schmehl To: stable@freebsd.org Message-ID: <89AE69A6C6BB0B0E02487A45@utd65257.utdallas.edu> In-Reply-To: References: <200805081730.m48HUNjh001532@symbion.zaytman.com> X-Mailer: Mulberry/4.0.6 (Linux/x86) X-Munged-Reply-To: Figure it out MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Cc: Subject: Re: [nvidia | shared irq] umass disconnects [was: panic dd-ing from a USB "disk" ] X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Paul Schmehl List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Jun 2008 16:58:03 -0000 --On Friday, June 06, 2008 19:36:46 +0200 "Arno J. Klaassen" wrote: > > > I can easily produce a similar panic on a dual Opteron 185 with > 3G of RAM and running 7-stable-amd64 on a (cheap) nvidia-based MB. > It runs gmirror on atapci1 and I attach a geli-encrypted > disk via usb. Both share irq 23. > > Under heavy load ("periodic security" is enough ) it panics after > having disconnected umass0 ( kgdb trace below ) : > > Unread portion of the kernel message buffer: > umass0: at uhub1 port 1 (addr 2) disconnected > (da1:umass-sim0:0:0:0): lost device > (pass1:umass-sim0:0:0:0): lost device > (pass1:umass-sim0:0:0:0): removing device entry > I have problems with umass during reboot. It causes a kernel panic and a forced reboot. To work around the problem, I disconnect the usb cable to reboot. Once the system comes back up, I can map the drive with no problems. If someone can tell me how to capture the information, I'd be glad to do so. I have no idea how to do it, and, after I disconnect the cable and reboot again, dmesg.boot looks perfectly normal. I've looked for core files but haven't found any. savecore -C returns "No dump exists". This is my workstation, so I can fiddle with it as need be to capture useful information. I just need someone knowledgeable to walk me through it, because this type of work is definitely out of my league. # uname -a FreeBSD utd65257.utdallas.edu 7.0-STABLE FreeBSD 7.0-STABLE #7: Sun Jun 8 15:58:57 CDT 2008 root@utd65257.utdallas.edu:/usr/obj/usr/src/sys/GENERIC i386 I just rebuilt world and kernel again, hoping the latest patches would solve the problem, but it didn't. -- Paul Schmehl As if it wasn't already obvious, my opinions are my own and not those of my employer.