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RE: [Xen-devel] Error restoring DomU when using GPLPV

To: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] Error restoring DomU when using GPLPV
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Tue, 4 Aug 2009 16:10:31 +1000
Cc: Joshua West <jwest@xxxxxxxxxxxx>
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Thread-topic: [Xen-devel] Error restoring DomU when using GPLPV
> 
> >
> > It seems that somewhere along the line Xen started using an event
> > channel to trigger a suspend, as opposed to the 'shutdown' xenstore
> > value. Is there anything else there I need to know about?
> >
> 
> Actually that seems to be unrelated the problem (I found this out
after adding
> suspend evtchn support to gplpv...)
> 
> The actual error is that the call to xc_memory_op passes 33 as
nr_extents, but
> the return value is 32, which is an error condition. Is it not
counting an
> already allocated page in the PVonHVM case or something?
> 
> XendCheckpoint:417 calls xc_domain_restore which calls
> xc_domain_memory_increase_reservation.
> 
> Does XENMEM_increase_reservation mean "increase reservation _by_ X" or
> "increase reservation _to_ X"?
> 

Actually I was looking at the wrong thing. The error is actually in
xc_domain_memory_populate_physmap

James

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