em0: watchdog timeout ...
John Baldwin
jhb at freebsd.org
Wed Oct 31 19:45:42 PDT 2007
On Tuesday 30 October 2007 09:29:06 am Mike Tancsa wrote:
> At 02:35 PM 10/29/2007, Ihsan Dogan wrote:
> >on 11.10.2007 05:02 Jack Vogel said the following:
> >
> > >> em0 at pci5:4:0: class=0x020000 card=0x10018086 chip=0x10268086
> > rev=0x04 hdr=0x00
> > >> vendor = 'Intel Corporation'
> > >> device = '82545GM Gigabit Ethernet Controller'
> > >> class = network
> > >> subclass = ethernet
> > >>
> > >> And am consistently experiencing:
> > >>
> > >> em0: watchdog timeout -- resetting
> > >> em0: link state changed to DOWN
> > >> em0: link state changed to UP
> > >> em0: watchdog timeout -- resetting
> > >> em0: link state changed to DOWN
> > >> em0: link state changed to UP
> > >> em0: watchdog timeout -- resetting
> > >> em0: link state changed to DOWN
> > >> em0: link state changed to UP
> > >>
> > >> Anything I can do to help debug this ?
> > >
> > > Well, add more detail for one, like timestamps on these events,
> > > do they happen once a minute, hour, day?
> >
> >I've got exactly the same problem on a machine, running 7.0-BETA1. The
> >Problem occurs during the boot, when dhclient is trying to get IP. The
> >messages are occuring all the time an it's not possible to use the
> >network card at all.
> >In my case, the network card and the soundcard are sharing an irq. If I
> >don't load the the snd_emu10k1 driver, the network card works perfectly.
>
>
> Mine are shared interrupts as well, however, they are shared among
> the nics, so disabling is not an option
>
> % vmstat -i
> interrupt total rate
> irq1: atkbd0 5 0
> irq4: sio0 61332 0
> irq16: em0 1029688695 614
> irq17: em1 em2 em3 775893384 463
> irq19: atapci1 300947 0
> cpu0: timer 3347198272 1997
> cpu1: timer 3347136233 1997
> Total 8500278868 5073
>
>
> em1 is the one having the problems (and yes, I did check the eeprom issue)
>
> em1 at pci1:0:1: class=0x020000 card=0x115e8086 chip=0x105e8086
> rev=0x06 hdr=0x00
> vendor = 'Intel Corporation'
> device = 'PRO/1000 PT'
> class = network
> subclass = ethernet
> cap 01[c8] = powerspec 2 supports D0 D3 current D0
> cap 05[d0] = MSI supports 1 message, 64 bit
> cap 10[e0] = PCI-Express 1 endpoint
>
> its also in FastE mode and not gigE. Not sure if that makes a
> difference or not.
What if you use MSI?
--
John Baldwin
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