From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: sky2 panic in 2.6.32.1 under load (new oops) Date: Fri, 25 Dec 2009 15:22:00 -0800 Message-ID: <20091225152200.1cf11dfe@nehalam> References: <4B300A2A.8040305@gmail.com> <4B300E30.9090707@majjas.com> <4B3114E3.1070602@majjas.com> <4B329FA3.9090904@majjas.com> <20091223230102.4bb0100e.akpm@linux-foundation.org> <4B34E847.8010809@majjas.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Andrew Morton , "Berck E. Nash" , "linux-kernel@vger.kernel.org" , netdev@vger.kernel.org To: Michael Breuer Return-path: In-Reply-To: <4B34E847.8010809@majjas.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Fri, 25 Dec 2009 11:28:55 -0500 Michael Breuer wrote: > More data points - I'm able to reliably recreate this now. > While I thought it was coincidence, each and every time I hit this issue > there is a DHCP renew event immediately before the first error. > The crash occurs while under load - in my case seems that the traffic is > actually IPV6 (hadn't noticed that before). > I ran nethogs on a remote display - the reported rx rate on the IPV6 smb > connection at the time of the lockup was 33889.688 KB/sec on a 1gbit > nic. I've got two events like this - don't recall if the earlier one was > the exact same # - but it was in the ballpark. > > On 12/24/2009 2:01 AM, Andrew Morton wrote: > > cc's added again. > > > > On Wed, 23 Dec 2009 17:54:27 -0500 Michael Breuer wrote: > > > > > >> Ok - not the firmware. Ran another Windows backup and sky2 went down. > >> > >> Nothing in dmesg.old - have oops in syslog. System became unresponsive > >> and watchdog kicked in after a minute. > >> > >> Also note that I have a similar oops with VT-D disabled (posted here on > >> 12/5). I'm attaching the oops from that below this oops for comparison. > >> That also happened under similar load. > >> > >> On the assumption that I can recreate this (although it takes a while) > >> please let me know how I can help. > >> > >> What's in my log (starting with an smbd error about 2 min before the > >> oops (note: the dchpd is not the system doing the backup). > >> > > This (nastily wordwrapped) oops appers to be quite different from > > Berck's one. > > > > What is the MTU? > --