linux-kernel - Re: [Xen-devel] [PATCH] xen: avoid another early crash of memory limited dom0

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Message-ID: <55E03B66.3040109@citrix.com>
Date:	Fri, 28 Aug 2015 11:43:50 +0100
From:	David Vrabel <david.vrabel@...rix.com>
To:	Juergen Gross <jgross@...e.com>, <linux-kernel@...r.kernel.org>,
	<xen-devel@...ts.xensource.com>, <konrad.wilk@...cle.com>,
	<david.vrabel@...rix.com>, <boris.ostrovsky@...cle.com>
Subject: Re: [Xen-devel] [PATCH] xen: avoid another early crash of memory
 limited dom0

On 19/08/15 17:53, Juergen Gross wrote:
> Commit b1c9f169047b ("xen: split counting of extra memory pages...")
> introduced an error when dom0 was started with limited memory occurring
> only on some hardware.
> 
> The problem arises in case dom0 is started with initial memory and
> maximum memory being the same. The kernel must be configured without
> CONFIG_XEN_BALLOON_MEMORY_HOTPLUG for the problem to happen. If all
> of this is true and the E820 map of the machine is sparse (some areas
> are not covered) then the machine might crash early in the boot
> process.

Applied to for-linus-4.3, thanks.

David
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