>Number: 159294
>Category: kern
>Synopsis: em watchdog timeouts
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Jul 29 12:50:10 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator: Kurt Jaeger
>Release: FreeBSD 8.2-STABLE i386
>Organization:
-
>Environment:
System: FreeBSD gk-intern.nepustil.net 8.2-STABLE FreeBSD 8.2-STABLE #0: Thu
Jul 28 16:46:30 UTC 2011
p...@gk-intern.nepustil.net:/usr/obj/usr/src/sys/GENERIC i386
>Description:
Jul 29 09:11:58 gk-intern kernel: em4: Watchdog timeout -- resetting
Jul 29 09:11:58 gk-intern kernel: wan0: link state changed to DOWN
Jul 29 09:12:00 gk-intern kernel: wan0: link state changed to UP
em0@pci0:1:0:0: class=0x020000 card=0x00008086 chip=0x10d38086 rev=0x00 hdr=0x00
vendor = 'Intel Corporation'
device = 'Intel 82574L Gigabit Ethernet Controller (82574L)'
class = network
subclass = ethernet
bar [10] = type Memory, range 32, base 0xfd9c0000, size 131072, enabled
bar [18] = type I/O Port, range 32, base 0x9f00, size 32, enabled
bar [1c] = type Memory, range 32, base 0xfd9fc000, size 16384, enabled
[...]
em4@pci0:5:10:0: class=0x020000 card=0x10768086 chip=0x10768086 rev=0x05
hdr=0x00
vendor = 'Intel Corporation'
device = 'Gigabit Ethernet Controller (82541EI)'
class = network
subclass = ethernet
em5@pci0:5:11:0: class=0x020000 card=0x10768086 chip=0x10768086 rev=0x05
hdr=0x00
vendor = 'Intel Corporation'
device = 'Gigabit Ethernet Controller (82541EI)'
class = network
subclass = ethernet
There are other em interfaces in this box, but they do not have
the timeout problem:
dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 7.2.3
dev.em.1.%desc: Intel(R) PRO/1000 Network Connection 7.2.3
dev.em.2.%desc: Intel(R) PRO/1000 Network Connection 7.2.3
dev.em.3.%desc: Intel(R) PRO/1000 Network Connection 7.2.3
dev.em.4.%desc: Intel(R) PRO/1000 Legacy Network Connection 1.0.3
dev.em.5.%desc: Intel(R) PRO/1000 Legacy Network Connection 1.0.3
Why are em4 and 5 using the Legacy ?
>How-To-Repeat:
Good question! It happens a few times a day
>Fix:
no solution as of now.
>Release-Note:
>Audit-Trail:
>Unformatted:
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