RE: [Xen-devel] hdc: lost interrupt

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> I'm not sure if it is xen related or not but when I put following in 
> /etc/exports
> 
>       /       10.0.10.5/24(ro,sync,no_root_squash)
> 
> and then procedeed to use dom0 as nfs root server, it would 
> hung pretty 
> reliably with "dma timeout" errors, and require power-cycle. 
> the fix was 
> to replace "sync" with "async" as shown below.
> 
>       /       10.0.10.5/24(ro,async,no_root_squash)
> 
> that was for xen 2.0.1 and 2.6.9

Weird. Could you try just running domain 0, then mounting localhost:/
somewhere. 

See if exercising the mount causes the same problem. It would then be
nice to repeat the experiment with a stock kernel.

BTW: exporting / is probably not such a great idea as it will allow
other domains to read your ssh host keys...

Ian


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