Date: Mon, 1 Aug 2011 16:00:28 -0700 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: Willem Jan Withagen <wjw@digiware.nl> Cc: stable@freebsd.org, "Vogel, Jack" <jack.vogel@intel.com> Subject: Re: em0 timeout disconnects server Message-ID: <20110801230028.GA83293@icarus.home.lan> In-Reply-To: <4E37286D.5070203@digiware.nl> References: <4E37286D.5070203@digiware.nl>
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On Tue, Aug 02, 2011 at 12:27:57AM +0200, Willem Jan Withagen wrote: > A server just all of a sudden dropped from the network. > uptime was 26days. > > This got my ZFS server hanging: > > Aug 1 23:39:58 zfs kernel: em0: Watchdog timeout -- resetting > Aug 1 23:39:58 zfs kernel: em0: Queue(0) tdh = 942, hw tdt = 977 > Aug 1 23:39:58 zfs kernel: em0: TX(0) desc avail = 985,Next TX to Clean > = 938 > Aug 1 23:43:24 zfs kernel: em0: Watchdog timeout -- resetting > Aug 1 23:43:24 zfs kernel: em0: Queue(0) tdh = 147, hw tdt = 163 > Aug 1 23:43:24 zfs kernel: em0: TX(0) desc avail = 1006,Next TX to > Clean = 145 > > ifconfig down/up did not fix anything, un/plugging the ethernet did not > do anything either. rebooting did fix it. > > Serious maintenance jobs only starts after 0:00. > > --WjW > > uname -a: > FreeBSD zfs.digiware.nl 8.2-STABLE FreeBSD 8.2-STABLE #10: Wed Jul 6 > 21:57:36 CEST 2011 > root@zfs.digiware.nl:/home/obj/usr/src/src8/src/sys/ZFS amd64 Please provide "dmesg" output pertaining to the NIC (dmesg | grep em0 would be sufficient). > pciconf -lv: Please re-run this with -lvcb and include only the Intel NIC (em0). Also please provide output from command "sysctl dev.em.0". Thanks. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, US | | Making life hard for others since 1977. PGP 4BD6C0CB |
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