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From: "James Harper" <james.harper@bendigoit.com.au>
To: Keir Fraser <keir.fraser@eu.citrix.com>, xen-devel@lists.xensource.com
Subject: RE: hang on restore in 3.3.1
Date: Wed, 11 Feb 2009 20:51:57 +1100	[thread overview]
Message-ID: <AEC6C66638C05B468B556EA548C1A77D0162C6DD@trantor> (raw)
In-Reply-To: <C5B84EA9.193C%keir.fraser@eu.citrix.com>

> On 11/02/2009 08:45, "James Harper" <james.harper@bendigoit.com.au>
wrote:
> 
> > Now I'm seeing the same thing but on vector 0x93 instead. There is
> > nothing on that vector. It appears that when xen is restoring my
domain,
> > an interrupt line is getting 'stuck' somehow, as the hang occurs as
soon
> > as I enable interrupts after doing the restore... any suggestions?
> 
> Not for a line that isn't connected up. Usually this is due to bad
restore
> of the evtchn callback irq, or bad restore of irqs from qemu. With 3.3
you
> could of course try reverting to the in-tree qemu (CONFIG_QEMU=ioemu)
and
> see if that makes the problem go away.
> 

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?

Thanks

James

  parent reply	other threads:[~2009-02-11  9:51 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-10  1:45 hang on restore in 3.3.1 James Harper
2009-02-11  8:45 ` James Harper
2009-02-11  9:45   ` Keir Fraser
2009-02-11  9:49     ` James Harper
2009-02-11  9:51     ` James Harper [this message]
2009-02-11 10:21       ` Keir Fraser
2009-02-11 11:26         ` James Harper
2009-02-11 13:08         ` James Harper

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