From owner-freebsd-xen@FreeBSD.ORG  Mon Jan 16 17:00:14 2012
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From: Sean Bruno <seanbru@yahoo-inc.com>
To: Richard Kojedzinszky <krichy@tvnetwork.hu>
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Date: Mon, 16 Jan 2012 08:49:45 -0800
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Cc: "freebsd-xen@freebsd.org" <freebsd-xen@freebsd.org>
Subject: Re: 8.2 releng
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On Mon, 2012-01-16 at 02:58 -0800, Richard Kojedzinszky wrote:
> Dear Sean,
> 
> I've investigated the problem, and found the following:
> 
> When starting with
> # xm create -c /dev/null kernel=/home/krichy/kernel extra="kern.hz=100" 
> memory=464
> 
> The kernel boots up, but when adding only one more MB to it, as:
> # xm create -c /dev/null kernel=/home/krichy/kernel extra="kern.hz=100" 
> memory=465
> 
> it does crash.
> 
> The config is the simple one I've attached previously, with pf and pflog 
> disabled. But again, if I enable pf and pflog, the domain starts with 
> 512MB ram well.
> 
> Regards,



Ah, this one!  Alan has resolved these issues in xen on -current at the
moment.  I suspect an MFC is coming soon:

http://svnweb.freebsd.org/base/head/sys/i386/xen/?view=log

If you want to try r229007, r228935, r228923, r228747, r228746 and
r228522 on stable/8 we'd appreciate the testing.

Sean