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Message-ID: <5508625F.6060600@arm.com>
Date:	Tue, 17 Mar 2015 17:20:31 +0000
From:	Vladimir Murzin <vladimir.murzin@....com>
To:	Will Deacon <will.deacon@....com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"hpa@...or.com" <hpa@...or.com>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"lauraa@...eaurora.org" <lauraa@...eaurora.org>,
	Catalin Marinas <Catalin.Marinas@....com>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"arnd@...db.de" <arnd@...db.de>,
	Mark Rutland <Mark.Rutland@....com>,
	"ard.biesheuvel@...aro.org" <ard.biesheuvel@...aro.org>,
	"baruch@...s.co.il" <baruch@...s.co.il>,
	"rdunlap@...radead.org" <rdunlap@...radead.org>
Subject: Re: [PATCH 0/6] make memtest a generic kernel feature

On 17/03/15 17:18, Will Deacon wrote:
> On Mon, Mar 09, 2015 at 10:27:04AM +0000, Vladimir Murzin wrote:
>> Memtest is a simple feature which fills the memory with a given set of
>> patterns and validates memory contents, if bad memory regions is detected it
>> reserves them via memblock API. Since memblock API is widely used by other
>> architectures this feature can be enabled outside of x86 world.
>>
>> This patch set promotes memtest to live under generic mm umbrella and enables
>> memtest feature for arm/arm64.
>>
>> It was reported that this patch set was useful for tracking down an issue with
>> some errant DMA on an arm64 platform.
>>
>> Since it touches x86 and mm bits it'd be great to get ACK/NAK for these bits.
> 
> Is your intention for akpm to merge this? I don't mind how it goes upstream,
> but that seems like a sensible route to me.
> 

It is already in -mm tree.

Vladimir

> Will
> 
>> Changelog:
>>
>>     RFC -> v1
>>         - updated kernel-parameters.txt for memtest entry
>>         - updated number of test patterns in Kconfig menu
>>         - added Acked/Tested tags for arm64 bits
>>         - rebased on v4.0-rc3
>>
>> Vladimir Murzin (6):
>>   mm: move memtest under /mm
>>   memtest: use phys_addr_t for physical addresses
>>   arm64: add support for memtest
>>   arm: add support for memtest
>>   Kconfig: memtest: update number of test patterns up to 17
>>   Documentation: update arch list in the 'memtest' entry
>>
>>  Documentation/kernel-parameters.txt |    2 +-
>>  arch/arm/mm/init.c                  |    3 +
>>  arch/arm64/mm/init.c                |    2 +
>>  arch/x86/Kconfig                    |   11 ----
>>  arch/x86/include/asm/e820.h         |    8 ---
>>  arch/x86/mm/Makefile                |    2 -
>>  arch/x86/mm/memtest.c               |  118 -----------------------------------
>>  include/linux/memblock.h            |    8 +++
>>  lib/Kconfig.debug                   |   11 ++++
>>  mm/Makefile                         |    1 +
>>  mm/memtest.c                        |  118 +++++++++++++++++++++++++++++++++++
>>  11 files changed, 144 insertions(+), 140 deletions(-)
>>  delete mode 100644 arch/x86/mm/memtest.c
>>  create mode 100644 mm/memtest.c
>>
>> -- 
>> 1.7.9.5
>>
> 
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> 


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