Date: Sun, 29 Jan 2012 13:38:39 +0400 From: Lev Serebryakov <lev@FreeBSD.org> To: freebsd-net@freebsd.org Cc: jfv@FreeBSD.org, jhb@FreeBSD.org Subject: em0 hangs on 8-STABLE again Message-ID: <1076713525.20120129133839@serebryakov.spb.ru>
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Hello, Freebsd-net.
My home server lost connection on em0 this night again. It was
persistent problem some times ago, but with version 7.2.3 it is first
time, but with worse symptoms.
It looks like undetected hardware hang-up: no packets could be sent
or received, and no any output in dmesg or log files. Interface
up/down with ifconfig and cable unplugging doesn't help: ifaces sees
all these changes, but no packets could be sent/received anyway. I
was forced to reboot server to make it work again.
IT is rather old 8-STABLE (Oct 2011), but it sems, that last change
in e1000 for 8-STABLE was r223675, in Jun 2011, so it is "fresh"
sources (I don't believe, that r229147 is related).
Output of `sysctl dev.em' when card is not working (but after some up/down
events) is attached.
NIC is:
em0: <Intel(R) PRO/1000 Network Connection 7.2.3> port 0xd880-0xd89f mem 0x=
fea40000-0xfea5ffff,0xfea7a000-0xfea7afff irq 20 at device 25.0 on pci0
em0: Using an MSI interrupt
em0: [FILTER]
em0: Ethernet address: 00:1e:8c:75:03:0d
em0@pci0:0:25:0: class=3D0x020000 card=3D0x82681043 chip=3D0x10bd808=
6 rev=3D0x02 hdr=3D0x00
vendor =3D 'Intel Corporation'
device =3D 'Intel 82566DM Gigabit Ethernet Adapter (82566DM)'
class =3D network
subclass =3D ethernet
--=20
// Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>
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