linux-kernel - Re: [PATCH Bug fix 0/5] Bug fix for physical memory hot-remove.

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Date:	Mon, 28 Jan 2013 09:22:16 +0800
From:	Tang Chen <tangchen@...fujitsu.com>
To:	Toshi Kani <toshi.kani@...com>
CC:	akpm@...ux-foundation.org, rientjes@...gle.com,
	len.brown@...el.com, benh@...nel.crashing.org, paulus@...ba.org,
	cl@...ux.com, minchan.kim@...il.com,
	kosaki.motohiro@...fujitsu.com, isimatu.yasuaki@...fujitsu.com,
	wujianguo@...wei.com, wency@...fujitsu.com, hpa@...or.com,
	linfeng@...fujitsu.com, laijs@...fujitsu.com, mgorman@...e.de,
	yinghai@...nel.org, glommer@...allels.com, jiang.liu@...wei.com,
	julian.calaby@...il.com, sfr@...b.auug.org.au, x86@...nel.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, linux-acpi@...r.kernel.org
Subject: Re: [PATCH Bug fix 0/5] Bug fix for physical memory hot-remove.

On 01/26/2013 02:19 AM, Toshi Kani wrote:
> On Tue, 2013-01-22 at 19:42 +0800, Tang Chen wrote:
>> Here are some bug fix patches for physical memory hot-remove. All these
>> patches are based on the latest -mm tree.
>> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm
>>
>> And patch1 and patch3 are very important.
>> patch1: free compound pages when freeing memmap, otherwise the kernel
>>          will panic the next time memory is hot-added.
>> patch3: the old way of freeing pagetable pages was wrong. We should never
>>          split larger pages into small ones.
>>
>>
>> Lai Jiangshan (1):
>>    Bug-fix: mempolicy: fix is_valid_nodemask()
>>
>> Tang Chen (3):
>>    Bug fix: Do not split pages when freeing pagetable pages.
>>    Bug fix: Fix section mismatch problem of
>>      release_firmware_map_entry().
>>    Bug fix: Fix the doc format in drivers/firmware/memmap.c
>>
>> Wen Congyang (1):
>>    Bug fix: consider compound pages when free memmap
>>
>>   arch/x86/mm/init_64.c     |  148 ++++++++++++++-------------------------------
>>   drivers/firmware/memmap.c |   16 +++---
>>   mm/mempolicy.c            |   36 +++++++----
>>   mm/sparse.c               |    2 +-
>>   4 files changed, 77 insertions(+), 125 deletions(-)
>
> This patchset fixed a blocker panic I was hitting in my memory hot-plug
> testing.  Memory hotplug works fine with this patchset (for testing my
> hotplug framework patchset :).  For the series:

Hi Toshi-san,

Thank you for testing. :)

>
> Tested-by: Toshi Kani<toshi.kani@...com>
>
> Thanks,
> -Toshi
>
>
>
>
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