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Subject: Re: [Xen-devel] Kernel crash with "xen: avoid early crash of memory
 limited dom0"
To: David Vrabel <david.vrabel@citrix.com>,
        =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= <roger.pau@citrix.com>
References: <55E968DA.8040207@citrix.com> <55E96E2C.2090800@citrix.com>
Cc: xen-devel <xen-devel@lists.xenproject.org>,
        Boris Ostrovsky <boris.ostrovsky@oracle.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
From: Juergen Gross <jgross@suse.com>
Message-ID: <55E9868C.7090800@suse.com>
Date: Fri, 4 Sep 2015 13:54:52 +0200
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On 09/04/2015 12:10 PM, David Vrabel wrote:
> On 04/09/15 10:48, Roger Pau Monné wrote:
>> Hello,
>>
>> The following commit:
>>
>> commit fa84f27e21200dbe7d18c21af424d1de703b7567
>> Author: Juergen Gross <jgross@suse.com>
>> Date:   Wed Aug 19 18:52:34 2015 +0200
>>
>> xen: avoid early crash of memory limited dom0
>>
>> Which is queued in:
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git for-linus-4.3
>
> I was going to send the pull request for this branch today but I guess
> it'll have to wait until next week.
>
> Juergen, if a fix for this isn't available by Wednesday next week I'll
> shall have to drop all the >512 GB support patches from this branch.

I've been able to reproduce the issue and found the problem
already. David, do you want an incremental patch or V2 of the
problematic patch Roger mentioned (it's just one line)?

Roger, I think I don't need your kernel config any longer. The
relevant information was to be found in the register context. :-)


Juergen