netdev - Re: 2.6.20->2.6.21 - networking dies after random time

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Date:	Tue, 7 Aug 2007 00:30:48 +0300
From:	Al Boldi <a1426z@...ab.com>
To:	netdev@...r.kernel.org, linux-net@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.20->2.6.21 - networking dies after random time

Jean-Baptiste Vignaud wrote:
> Mmm, bad news, after 4 hours of intensive network stressing, one of the 2
> 3com card failed with the latest fedora kernel.
>
> Aug  6 22:31:09 loki kernel: NETDEV WATCHDOG: eth2: transmit timed out
> Aug  6 22:31:09 loki kernel: eth2: transmit timed out, tx_status 00 status
> e601. Aug  6 22:31:09 loki kernel:   diagnostics: net 0ccc media 8880 dma
> 0000003a fifo 8000 Aug  6 22:31:09 loki kernel: eth2: Interrupt posted but
> not delivered -- IRQ blocked by another device? Aug  6 22:31:09 loki
> kernel:   Flags; bus-master 1, dirty 26085000(8) current 26085000(8) Aug 
> 6 22:31:09 loki kernel:   Transmit list 00000000 vs. ffff81007c807700.
>
> Stressing eth2 by copying large files on a samba on share and eth0 by
> downloading big files on the internet.

Next time you want to stress your network you may want to try this:

  # ping 10.1 -s8 -f -l9

or

  # ping 10.1 -s8 -A > /dev/null

BTW, I mentioned this before, there maybe a BIOS irq config mismatch before 
booting the kernel.


Thanks!

--
Al

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