em0 timeout disconnects server
freebsd at jdc.parodius.com
Mon Aug 1 23:00:37 UTC 2011
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.
> uname -a:
> FreeBSD zfs.digiware.nl 8.2-STABLE FreeBSD 8.2-STABLE #10: Wed Jul 6
> 21:57:36 CEST 2011
> root at 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".
| 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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