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RE: [Xen-devel] x86_64 eth0 e1000_clean_tx_irq tx hang

To: "Chris Wright" <chrisw@xxxxxxxxxxxx>
Subject: RE: [Xen-devel] x86_64 eth0 e1000_clean_tx_irq tx hang
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Thu, 9 Feb 2006 01:50:02 -0000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, adam@xxxxxxxxxxx
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Thread-index: AcYtGJnK4wpgqQL8Qv2bbi/OMs7tmAAAjS3w
Thread-topic: [Xen-devel] x86_64 eth0 e1000_clean_tx_irq tx hang
 > > That's interesting, but I'd be surprised if it was an 
> swiotlb thing -- 
> > it looks so much more like an interrupt problem. e1000 and tg3 
> > shouldn't be going anywhere near swiotlb anyhow.
> > 
> > Please can you try a PAE kernel just to check you don't have the 
> > problem.
> It's 64-bit.

Yep, but I'm wandering whether it's worth trying a PAE kernel as that
might give a datapoint to indicate whether swiotlb might be involved. 

My money is still on an interrupt problem (virtual or otherwise),


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