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RE: [Xen-devel] hang on restore in 3.3.1

To: "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] hang on restore in 3.3.1
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Wed, 11 Feb 2009 22:26:22 +1100
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Thread-topic: [Xen-devel] hang on restore in 3.3.1
> On 11/02/2009 09:51, "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
wrote:
> 
> > What do you think the chances are of it being a qemu problem? the
> > xentrace code would indicate that it was the hypervisor asserting
the
> > interrupt, but that wouldn't preclude qemu from being the originator
of
> > the interrupt would it?
> 
> Most interrupts come from qemu, since it emulates most devices.
Switching
> your qemu is a pretty easy test (build internal old version rather
than
> out-of-tree new version).
> 

I just rebooted with my GPLPV drivers inactive (eg not hiding qemu
devices, leaving the PV network device with 'disconnected' and not
enumerating block devices), and I found that an NDIS device is using
vector 0x93, which will be the qemu realtek device. I hide it on boot,
but I forgot to hide it again after the restore which will probably be
the cause of my problems... hopefully hiding it on restore again will
stop it generating interrupts!

James

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