* Re: [PATCH 2/2] x86, e820 disable ACPI Memory Hotplug if memory mapping is specified by user
[not found] ` <1389379579-18614-3-git-send-email-prarit@redhat.com>
@ 2014-01-10 19:00 ` Prarit Bhargava
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From: Prarit Bhargava @ 2014-01-10 19:00 UTC (permalink / raw)
To: Prarit Bhargava
Cc: linux-kernel, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86,
Len Brown, Rafael J. Wysocki, Linn Crosetto, Pekka Enberg,
Yinghai Lu, Andrew Morton, Toshi Kani, Tang Chen, Wen Congyang,
Vivek Goyal, kosaki.motohiro, dyoung, linux-acpi, linux-mm
On 01/10/2014 01:46 PM, Prarit Bhargava wrote:
> kdump uses memmap=exactmap and mem=X values to configure the memory
> mapping for the kdump kernel. If memory is hotadded during the boot of
> the kdump kernel it is possible that the page tables for the new memory
> cause the kdump kernel to run out of memory.
>
> Since the user has specified a specific mapping ACPI Memory Hotplug should be
> disabled in this case.
>
Noticed a bug in this. Will repost a new version shortly.
P.
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