linux-kernel - Re: NETDEV WATCHDOG (3Com 3c905 adapter)

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Date:	Sat, 24 Nov 2007 14:11:15 +0100
From:	BERTRAND Joël <joel.bertrand@...tella.fr>
To:	Steffen Klassert <klassert@...hematik.tu-chemnitz.de>
CC:	sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: NETDEV WATCHDOG (3Com 3c905 adapter)

Steffen Klassert wrote:
> 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.

	I can confirm that my U60 worked fine sixty days with 2.6.23-rc4 
without any trouble. With 2.6.23.1, 3com NIC hangs after three or four 
days...

	Regards,

	JKB
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