Date: Fri, 02 Oct 2015 19:37:10 +0200 From: "Frank de Bot (lists)" <lists@searchy.net> To: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: em0 and em1 watchdog timed out Message-ID: <560EC0C6.409@searchy.net>
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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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