linux-kernel - Re: Problems with disk + network on 2.6.25.11-60.fc8

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Date:	Mon, 04 Aug 2008 19:27:53 -0400
From:	David Stuart <dstuart@...ers.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Problems with disk + network on 2.6.25.11-60.fc8

Alan Cox wrote:
> Ok so the pdc202xx_old hardware flakes out when you have very high
> network load (I'd guess in fact very high bus traffic).
>
> The actual log is the disk I/O timing out, then the drive being busy
> (probably due to the timeout and a DMA transfer getting stuck). We reset
> it and carry on.
>
> Libata happens to log this a lot more visibly than old kernels which is
> useful but does mean people sometimes don't notice.
>
> The rest then fits - the freeze I'd expect as we block I/O while trying
> to get the drive back.
>
> Doubt the Nvidia module is involved as I'd then expect problems under
> high graphical load but you can certainly test that. I don't suppose
> you've got a spare PCI network card you could try instead to see if it is
> the network card bits ?
>
> Alan
>   

Hi Alan,

Actually I do not really have another PCI network card, but I could 
switch the computer back to the other interface which is on the 
motherboard (does that one function as a PCI device?). As I mentioned in 
my first post, the current card I am using is an attempt to try to work 
around the problem (originally I thought it was the on-board 
controller), so I have my doubts as to whether switching back would help.

Nonetheless, I will give it a try again and let you know the result.

Thanks,
David

-- 
The only way to keep your health is to eat what you don't want, drink
what you don't like, and do what you'd rather not.
                -- Mark Twain


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