Re: [Xen-users] Strange failures of Xen 4.3.1, PVHVM storage VM, iSCSI and Windows+GPLPV VM combination

[Kuba <kuba.0000@xxxxx>]

W dniu 2014-02-06 00:07, James Harper pisze:
> > Any ideas and suggestions on what could be the cause and what can I do
> > will be much appreciated.
> Can you try turning on iscsi data checksuming? If data corruption in the 
> network stack is the cause (seems likely to me) then this should pick it up.
>
> If your iscsi initiator and/or target don't support data digest, try turning 
> off all the offloads and scatter gather on the network interfaces and see if 
> you can reduce the problem to one of the offloads (large send would be my best 
> guess).
>
> James
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I haven't noticed any change after turning off all offloads etc. 
reported by ethtool. Sorry, I forgot to mention that earlier.
I couldn't get Open-iSCSI and IET to cooperate with each other with 
digests enabled, so I tried with FreeBSD's native target, which "just 
worked" - well, at least until I launched the second DomU ;) The logs 
are in "DomU-A-FreeBSD10.log" attached in one of my previous posts.
If I understand correctly, the iSCSI-related issues were only symptoms 
caused by something Roger seems to have found.
I'm very grateful to you guys for your time and effort to solve my 
little problem and (especially) for making Xen what it is today.
Kuba

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