You missed the all-important details: OS version, driver version.
And another question I can think of, do these interfaces watchdog if they
are not configured with lagg?
Cheers,
Jack
On Fri, Oct 2, 2015 at 10:37 AM, Frank de Bot (lists) <lists at
searchy.net>
wrote:
> On a server I have 2 interfaces configured in a lagg. It seemed to be
> running stable until now (about a week), both interfaces repeatable go
> down after a watchdog timeout.
>
> Output from /var/log/messages
>
> Oct 2 10:15:11 nas kernel: em0: Watchdog timeout Queue[0]-- resetting
> Oct 2 10:15:11 nas kernel: Interface is RUNNING and ACTIVE
> Oct 2 10:15:11 nas kernel: em0: TX Queue 0 ------
> Oct 2 10:15:11 nas kernel: em0: hw tdh = 804, hw tdt = 905
> Oct 2 10:15:11 nas kernel: em0: Tx Queue Status = -2147483648
> Oct 2 10:15:11 nas kernel: em0: TX descriptors avail = 915
> Oct 2 10:15:11 nas kernel: em0: Tx Descriptors avail failure = 0
> Oct 2 10:15:11 nas kernel: em0: RX Queue 0 ------
> Oct 2 10:15:11 nas kernel: em0: hw rdh = 912, hw rdt = 911
> Oct 2 10:15:11 nas kernel: em0: RX discarded packets = 0
> Oct 2 10:15:11 nas kernel: em0: RX Next to Check = 912
> Oct 2 10:15:11 nas kernel: em0: RX Next to Refresh = 911
> Oct 2 10:15:11 nas kernel: em0: link state changed to DOWN
> Oct 2 10:15:13 nas kernel: em0: link state changed to UP
> Oct 2 10:15:13 nas devd: Executing '/etc/rc.d/dhclient quietstart
em0'
> Oct 2 10:21:56 nas kernel: em1: Interface stopped DISTRIBUTING,
> possible flapping
> Oct 2 10:21:59 nas kernel: em1: Watchdog timeout Queue[0]-- resetting
> Oct 2 10:21:59 nas kernel: Interface is RUNNING and ACTIVE
> Oct 2 10:21:59 nas kernel: em1: TX Queue 0 ------
> Oct 2 10:21:59 nas kernel: em1: hw tdh = 686, hw tdt = 806
> Oct 2 10:21:59 nas kernel: em1: Tx Queue Status = -2147483648
> Oct 2 10:21:59 nas kernel: em1: TX descriptors avail = 896
> Oct 2 10:21:59 nas kernel: em1: Tx Descriptors avail failure = 0
> Oct 2 10:21:59 nas kernel: em1: RX Queue 0 ------
> Oct 2 10:21:59 nas kernel: em1: hw rdh = 167, hw rdt = 166
> Oct 2 10:21:59 nas kernel: em1: RX discarded packets = 0
> Oct 2 10:21:59 nas kernel: em1: RX Next to Check = 167
> Oct 2 10:21:59 nas kernel: em1: RX Next to Refresh = 166
> Oct 2 10:21:59 nas kernel: em1: link state changed to DOWN
> Oct 2 10:22:02 nas kernel: em1: link state changed to UP
> Oct 2 10:22:02 nas devd: Executing '/etc/rc.d/dhclient quietstart
em1'
>
> it seems to occur when the interface are loaded. On the same server I
> also have a PCI card, the same issue occurs here. em0 and em1 are both
> onboard 80003ES2LAN. the PCI card is 82571EB.
>
> I've found different threads, but I couldn't manage to find a fix
for
> this.
>
> What else can be wrong?
>
> Regards,
>
> Frank de Bot
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