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[Xen-devel] Re: Bootup fix for _brk_end being != _end

To: Daniel Kiper <dkiper@xxxxxxxxxxxx>
Subject: [Xen-devel] Re: Bootup fix for _brk_end being != _end
From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Date: Tue, 15 Mar 2011 10:48:21 -0400
Cc: "jeremy@xxxxxxxx" <jeremy@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "haicheng.li@xxxxxxxxxxxxxxx" <haicheng.li@xxxxxxxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, "v.tolstov@xxxxxxxxx" <v.tolstov@xxxxxxxxx>, "dave@xxxxxxxxxxxxxxxxxx" <dave@xxxxxxxxxxxxxxxxxx>, Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>, "linux-mm@xxxxxxxxx" <linux-mm@xxxxxxxxx>, "rientjes@xxxxxxxxxx" <rientjes@xxxxxxxxxx>, "andi.kleen@xxxxxxxxx" <andi.kleen@xxxxxxxxx>, "akpm@xxxxxxxxxxxxxxxxxxxx" <akpm@xxxxxxxxxxxxxxxxxxxx>, "fengguang.wu@xxxxxxxxx" <fengguang.wu@xxxxxxxxx>, "wdauchy@xxxxxxxxx" <wdauchy@xxxxxxxxx>
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> > > Additionally, I suggest to apply patch prepared by Steffano Stabellini
> > > (https://lkml.org/lkml/2011/1/31/232) which fixes memory management
> > > issue in Xen guest. I was not able boot guest machine without
> > > above mentioned patch.
> >
> > after some discussions we came up with a different approach to fix the
> > issue; I sent a couple of patches a little while ago:
> >
> > https://lkml.org/lkml/2011/2/28/410
> I tested git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git 
> 2.6.38-tip-fixes
> and it works on x86_64, however, it does not work on i386. Tested as
> unprivileged guest on Xen Ver. 4.1.0-rc2-pre. On i386 domain crashes
> silently at early boot stage :-(((.

Details? Can you provide the 'xenctx' output of where it crashed?

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