Re: NETDEV WATCHDOG (3Com 3c905 adapter)

[Steffen Klassert <klassert@mathematik.tu-chemnitz.de>]

On Fri, Nov 23, 2007 at 04:52:39PM +0100, BERTRAND Joël wrote:
> BERTRAND Joël wrote:
> >    Hello,
> >
> >    Since I have installed a 2.6.23.1 linux kernel on my U60, I can see 
> >several NETDEV WATCHDOG. This trouble never occurs with 2.6.23-rc4.
> >This bug occurs after a random uptime.
> 
> 	I have made the same constation this evening on a amd64/up with two 
> 3C905 and a 2.6.21.3 linux kernel... This evening, I have rebooted my 
> U60 with a 2.6.23.8 kernel and the same 3C905 runs fine. Wait and see 
> (but I suspect a kernel bug...).
> 
> 	For main linux kernel list:
> 
> >End of dmesg :
> >
> >NETDEV WATCHDOG: eth2: transmit timed out
> >eth2: transmit timed out, tx_status 00 status 8601.
> >  diagnostics: net 0ccc media 8880 dma 0000003a fifo 0000
> >eth2: Interrupt posted but not delivered -- IRQ blocked by another device?

This looks like a problem that several network drivers had recently.
The problem was genirq related and should be fixed in 2.6.23,
so I'm surprised that this happens with 2.6.23.1 but not with 2.6.23-rc4.

Steffen
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