netdev - Re: sky2 tx watchdog timeout with 1Gb speed

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Message-ID: <20111205081611.52ec0664@nehalam.linuxnetplumber.net>
Date:	Mon, 5 Dec 2011 08:16:11 -0800
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Milan Kocian <milon@...cz>
Cc:	netdev@...r.kernel.org
Subject: Re: sky2 tx watchdog timeout with 1Gb speed

On Mon, 5 Dec 2011 13:47:25 +0100
Milan Kocian <milon@...cz> wrote:

> On Sat, Nov 26, 2011 at 05:03:31PM -0800, Stephen Hemminger wrote:
> > 
> > I think the problem might be that the board doesn't really have all the DMA pins
> > wired. You might try enabling iommu, or limiting to <4G of memory.
> 
> hello stephen,
> 
> you are probably right. I found that with this mb (Gigabyte GA-965GM-S2) was
> more problems with linux. So I replaced this old crap with new one :-).
> Many thanks for your time.
> 
> Best regards,

There was a similar glitch with some skge users.

I have a patch to limit driver to 32bit only. If you send the DMI information,
it can be made automatic.
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