Date: Fri, 20 May 2011 13:35:18 +0200 From: Manuel Bouyer <bouyer@antioche.eu.org> To: Hugo Silva <hugo@barafranca.com> Cc: freebsd-xen@freebsd.org, port-xen@NetBSD.org Subject: Re: FreeBSD HVM+PV boot hangs with phy: run_interrupt_driven_hooks: still waiting after 60 seconds for xenbusb_nop_confighook_cb Message-ID: <20110520113518.GA9031@asim.lip6.fr> In-Reply-To: <4DB7616F.9060109@barafranca.com> References: <4DB7616F.9060109@barafranca.com>
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On Wed, Apr 27, 2011 at 01:21:03AM +0100, Hugo Silva wrote:
> Hello,
>
> Just as the subject says.
>
> dom0 is NetBSD 5.99.49/Xen 3.3.2 and domU is FreeBSD 8.2-STABLE (same
> happens with -RELEASE).
I tried to boot a FreeBSD 8.2-RELEASE on both Xen 3.3 and 4.1, the
HVMPV kernel dies with a panic in the netfront driver (the panic
is "do something smart"). I got 2 sightly different console output;
one being clearly that it couldn't read the mac address (I suspect it's trying
to read it from the wrong xenstore path), I guess the other case is that it
can't get allocate a grant ref.
>
> If I create a FreeBSD VM and use file:, XENHVM will boot to completion.
>
> If I vnconfig that same file, then it will hang. On lvm storage it will
> also hang.
>
> So it seems to be related to using phy:.
It could be because with file:, the backend driver uses a vnd device attached
to the file while qemu-dm opens the file directly. In the phy: case, both
qemu-dm and the backend driver wants to open the device, and this may be
denied by the kernel.
--
Manuel Bouyer <bouyer@antioche.eu.org>
NetBSD: 26 ans d'experience feront toujours la difference
--
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