From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: pvgrub boot problems
Date: Tue, 06 Apr 2010 15:19:03 -0700
Message-ID: <4BBBB357.5050905@goop.org>
References: <20100327105311.GU1878@reaktio.net>	<C7D39A1F.E823%keir.fraser@eu.citrix.com>	<20100327112400.GW1878@reaktio.net>	<alpine.LFD.2.00.1003271919490.5501@vega2.dur.ac.uk>	<4BAE856E.5090902@goop.org>	<20100404172109.GN3973@const.famille.thibault.fr>	<alpine.LFD.2.00.1004051900350.338@vega3.dur.ac.uk>	<20100405234034.GL23034@const.famille.thibault.fr>	<alpine.GSO.2.00.1004061051100.11480@algedi.dur.ac.uk>
	<20100406212509.GT4015@const.famille.thibault.fr>
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To: Samuel Thibault <samuel.thibault@ens-lyon.org>, M A Young <m.a.young@durham.ac.uk>, "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>, Keir Fraser <keir.fraser@eu.citrix.com>
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On 04/06/2010 02:25 PM, Samuel Thibault wrote:
> M A Young, le Tue 06 Apr 2010 10:55:30 +0100, a =E9crit :
>   =20
>> On Tue, 6 Apr 2010, Samuel Thibault wrote:
>>
>>     =20
>>> M A Young, le Mon 05 Apr 2010 19:05:33 +0100, a =E9crit :
>>>       =20
>>>> Yes, I have applied that and the patch you posted just before it and=
 it
>>>> fixes the crash issue if there is no frame buffer. The boot still fa=
ils
>>>> for me because of the gzip issue but it didn't get that far previous=
ly
>>>> with this setup.
>>>>         =20
>>> The gzip issue?  Is your kernel really a gzip file, not something els=
e?
>>> (like bz2 or such).
>>>       =20
>> Yes, the older style for xen kernels, still used for some guests such =
as
>> Red Hat Enterprise Linux 4 and 5, is to have a gzipped vmlinux executa=
ble.
>> Xen support for bzimage style kernels is relatively recent.
>>     =20
> The problem with compression and crashes when using the fb should be
> fixed by my latest patch (Fix crash on frontend shutdown failures)
>   =20

I applied both, but something is still amiss.  Just commenting out the=20
two frees allowed the domain to start, but the kernel started printing=20
messages about the page state of various processes being bad.

After applying your two most recent patches (reverting the commented-out=20
free_pages first), the domain seems to boot, but then hangs at some=20
point early.

Disabling vfb still works fine.

     J