With the increased load you might be running out of mbufs more easily, would suggest you increase the mbuf pool.
This is an old old driver now, you might consider going to something a bit more recent. Jack On Mon, Feb 22, 2010 at 10:14 AM, Kirk Davis <kirk.da...@epsb.ca> wrote: > Hi, > I have a FreeBSD server running Quagga as a BGP router. It has > a number of interfaces in it both bce and em. The most heavily used > interfaces are starting to give me watchdog timeout errors just in the > last week. We normally sustain about 300Mb/s on both of these > interfaces but in the last week this now up to 380Mb/s. > > This is a Intel Pro/1000 PT dual interface PCI-E card. There is > two of them in the server. The server is a Dell 2950 > > Searching the mailing list and checking on google has not turned > up much. Since this is our main router it is difficult to test with. I > have seen one message that suggests trying to set hw.em.rxd=1024 and > hw.em.txd=1024 in loader.conf and another that suggested turning off > but none this has not made any difference. > > The odd thing is that this just started. This box has been up > and running fine for a while. The only thing different on our network > had been an increase in the bandwidth. > > Any idea where I go from here to trouble shoot this? > > # uname -a > FreeBSD inet-gw.epsb.ca 7.1-STABLE FreeBSD 7.1-STABLE #3: Mon Mar 23 > 16:08:53 MDT 2009 > r...@inet-gw-test.epsb.ca:/usr/obj/usr/src/sys/DELL2950 amd64 > > # tail /var/log/messages > Feb 19 12:26:04 inet-gw kernel: em0: watchdog timeout -- resetting > Feb 19 12:26:04 inet-gw kernel: em0: link state changed to DOWN > Feb 19 12:26:07 inet-gw kernel: em0: link state changed to UP > Feb 19 12:26:08 inet-gw kernel: em0: link state changed to DOWN > Feb 19 12:26:10 inet-gw kernel: em0: link state changed to UP > Feb 19 14:44:20 inet-gw kernel: em0: watchdog timeout -- resetting > Feb 19 14:44:20 inet-gw kernel: em0: link state changed to DOWN > Feb 19 14:44:23 inet-gw kernel: em0: link state changed to UP > Feb 19 15:05:03 inet-gw kernel: em2: watchdog timeout -- resetting > Feb 19 15:05:03 inet-gw kernel: em2: link state changed to DOWN > Feb 19 15:05:05 inet-gw kernel: em2: link state changed to UP > Feb 19 15:07:39 inet-gw kernel: em2: watchdog timeout -- resetting > Feb 19 15:07:39 inet-gw kernel: em2: link state changed to DOWN > Feb 19 15:07:42 inet-gw kernel: em2: link state changed to UP > > # from /var/run/dmesg.boot > em0: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0xdce0-0xdcff mem > 0xd5ee0000-0xd5efffff,0xd5ec0000-0xd5edffff irq 17 at device 0.0 on pci8 > em0: Using MSI interrupt > em0: [FILTER] > em0: Ethernet address: 00:15:17:a6:ae:94 > em2: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0xcce0-0xccff mem > 0xde3e0000-0xde3fffff,0xde3c0000-0xde3dffff irq 16 at device 0.0 on > pci10 > em2: Using MSI interrupt > em2: [FILTER] > em2: Ethernet address: 00:15:17:a6:af:d6 > > # pciconf -lv > e...@pci0:8:0:0: class=0x020000 card=0x135e8086 chip=0x105e8086 rev=0x06 > hdr=0x00 > vendor = 'Intel Corporation' > device = 'PRO/1000 PT' > class = network > subclass = ethernet > e...@pci0:10:0:0: class=0x020000 card=0x135e8086 chip=0x105e8086 > rev=0x06 hdr=0x00 > vendor = 'Intel Corporation' > device = 'PRO/1000 PT' > class = network > subclass = ethernet > > # netstat -bdhI em2 2 > input (em2) output > packets errs bytes packets errs bytes colls drops > 65K 0 72M 51K 0 9.4M 0 0 > 69K 0 78M 52K 0 8.5M 0 0 > 76K 0 88M 55K 0 11M 0 0 > 74K 0 85M 54K 0 10M 0 0 > 78K 0 91M 56K 0 9.0M 0 0 > 75K 0 86M 54K 0 8.7M 0 0 > 74K 0 85M 54K 0 9.2M 0 0 > 75K 0 86M 56K 0 10M 0 0 > 78K 0 88M 55K 0 12M 0 0 > 78K 0 90M 58K 0 12M 0 0 > 76K 0 87M 54K 0 10M 0 0 > 79K 0 91M 56K 0 10M 0 0 > > > ---- Kirk > ------------------------------------------------------------------------ > -------- > Kirk Davis > Senior Network Analyst, ITS > Edmonton Public Schools > One Kingsway Ave. > Edmonton, Alberta, Canada > T5H 4G9 > > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org" > _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
