em0: watchdog timeout ...

[John Baldwin]

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