There are the following server: MB X58A-UD3R, CPU Intel (R) Core (TM) i7 950, and 2 network cards E1G42ET. 2 ports on each board are grouped together in the lagg: lagg0 and lagg1 lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=1bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4> ether 00:1b:21:5f:9d:6c inet 1.1.1.1 netmask 0xffffffc0 broadcast 1.1.1.63 media: Ethernet autoselect status: active laggproto lacp laggport: igb1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> laggport: igb0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> lagg1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=1bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4> ether 00:1b:21:6e:9e:cc inet 2.2.2.26 netmask 0xfffffffc broadcast 2.2.2.27 media: Ethernet autoselect status: active laggproto lacp laggport: igb3 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> laggport: igb2 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> lagg0 connected to the same server is running in bridge mode, lagg1 connected to the Cisco 6509. At high load - 1,7 Gbit / s start error: igb0: Watchdog timeout -- resetting igb0: Queue(2) tdh = 214, hw tdt = 438 igb0: TX(2) desc avail = 800,Next TX to Clean = 214 igb0: link state changed to DOWN igb0: link state changed to UP #cat /boot/loader.conf hw.em.rxd=4096 hw.em.txd=4096 net.inet.tcp.tcbhashsize=4096 #hw.igb.rxd=2048 #hw.igb.txd=2048 hw.igb.lro.enable=0 hw.igb.num_queues=0 #netstat -w1 -h input (Total) output packets errs idrops bytes packets errs bytes colls 1.0M 0 0 694M 1.0M 0 737M 0 1.1M 5.2K 0 716M 1.1M 0 721M 0 1.1M 0 0 722M 1.1M 0 730M 0 1.0M 0 0 698M 1.0M 0 730M 0 1.1M 1.7K 0 726M 1.1M 0 729M 0 1.0M 0 0 694M 1.0M 0 786M 0 1.1M 1.5K 0 719M 1.1M 0 720M 0 top -SHI last pid: 51590; load averages: 1.53, 1.56, 1.44 up 4+10:12:10 22:39:29 196 processes: 29 running, 115 sleeping, 52 waiting CPU: 0.7% user, 0.0% nice, 42.1% system, 35.9% interrupt, 21.4% idle Mem: 336M Active, 267M Inact, 724M Wired, 200K Cache, 418M Buf, 2621M Free Swap: 4096M Total, 4096M Free Fix: I do not know. Patch attached with submission follows: How-To-Repeat: Generate a large flow of traffic.
Responsible Changed From-To: freebsd-amd64->freebsd-kern This does not sound amd64-specific.
Responsible Changed From-To: freebsd-kern->freebsd-bugs Fix late-night brain-o.
Responsible Changed From-To: freebsd-bugs->freebsd-net Over to maintainer(s).
Does this still happen for you with 10.2r?
Timing out this issue on 8.1 stable. Please reopen this issue or open a new ticket if this is is happening on supported releases.