kernel: em2: watchdog timeout -- resetting

[Jack Vogel]

Well, there's no magic switch, you could change the driver code to remove
it,
however its really indicative of some kind of problem, it shouldn't happen,
so
perhaps you want to pursue that. Does it only happen on em2, what is special
about that path, etc etc..

You can look at the debug/stats data of the interface for clues, maybe its a
mbuf exhaustion, perhaps descriptor.

Good luck,

Jack


On Tue, Aug 25, 2009 at 12:57 PM, Scott Ullrich <sullrich at gmail.com> wrote:

> I have a Nexcom firewall with Intel em nics that will not spamming the
> system logs with this message:
>
> kernel: em2: watchdog timeout -- resetting
>
> em0 at pci0:1:4:0: class=0x020000 card=0x10768086 chip=0x10768086 rev=0x05
> hdr=0x00
> em1 at pci0:1:5:0: class=0x020000 card=0x10768086 chip=0x10768086 rev=0x05
> hdr=0x00
> em2 at pci0:1:6:0: class=0x020000 card=0x10768086 chip=0x10768086 rev=0x05
> hdr=0x00
> em3 at pci0:1:7:0: class=0x020000 card=0x10768086 chip=0x10768086 rev=0x05
> hdr=0x00
>
> em0: [FILTER]
> em0: Ethernet address: 00:10:f3:0d:0a:db
> em1: <Intel(R) PRO/1000 Network Connection 6.9.14> port 0xd100-0xd13f
> mem 0xe8040000-0xe805ffff,0xe8060000-0xe807ffff irq 10 at device 5.0
> on pci1
> em1: [FILTER]
> em1: Ethernet address: 00:10:f3:0d:0a:da
> em2: <Intel(R) PRO/1000 Network Connection 6.9.14> port 0xd200-0xd23f
> mem 0xe8080000-0xe809ffff,0xe80a0000-0xe80bffff irq 11 at device 6.0
> on pci1
> em2: [FILTER]
> em2: Ethernet address: 00:10:f3:0d:0a:d9
>
> The box in question is running Beta 1.   I have not seen commits
> relating to this so I have not had a chance to update to beta 3.
>
> Does anyone know how I can clam down this system log message?   It
> does not appear to affect network traffic at all.   The device in
> question is a firewall.
>
> Thanks,
>
> Scott
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