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Re: [Xen-devel] Re: [PATCH] xen: correctly rebuild mfn list list after m

To: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [PATCH] xen: correctly rebuild mfn list list after migration.
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Thu, 14 Oct 2010 11:27:43 -0700
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References: <1286878488-9027-1-git-send-email-ian.campbell@xxxxxxxxxx> <4CB650CE.7090701@xxxxxxxx> <1287038979.5663.180.camel@xxxxxxxxxxxxxxxxxxxxx> <1287046280.2003.5564.camel@xxxxxxxxxxxxxxxxxxxxxx>
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 On 10/14/2010 01:51 AM, Ian Campbell wrote:
> On Thu, 2010-10-14 at 07:49 +0100, Ian Campbell wrote:
>> On Thu, 2010-10-14 at 01:37 +0100, Jeremy Fitzhardinge wrote:
>>>
>>> I'm getting this triggering at boot:
>>>
>>> PM: Adding info for No Bus:xen!gntdev
>>> ------------[ cut here ]------------
>>> kernel BUG at /home/jeremy/git/linux/arch/x86/xen/mmu.c:480! 
>> Probably a consequence of the bogus attempt to skip over completely
>> empty mid levels which you pointed out in your next mail.
>>
>> I guess I should test 64 bit guests and not just PAE ones and I guess
>> pre-ballooning is likely to interact as well.
> I'm only able to reproduce this by booting ballooned and then ballooning
> up, are you doing that or were you seeing it just by booting?
>
> What are your memory and maxmem settings?

memory=512, no maxmem.


    J

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