From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Rutland Subject: Re: [RFC PATCH 0/4] make memtest a generic kernel feature Date: Tue, 3 Mar 2015 16:37:40 +0000 Message-ID: <20150303163740.GA10239@leverpostej> References: <1425308145-20769-1-git-send-email-vladimir.murzin@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1425308145-20769-1-git-send-email-vladimir.murzin@arm.com> Sender: linux-kernel-owner@vger.kernel.org To: Vladimir Murzin Cc: "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "linux-arch@vger.kernel.org" , "x86@kernel.org" , "linux-arm-kernel@lists.infradead.org" , "tglx@linutronix.de" , "mingo@redhat.com" , "hpa@zytor.com" , "akpm@linux-foundation.org" , "lauraa@codeaurora.org" , Catalin Marinas , Will Deacon , "linux@arm.linux.org.uk" , "arnd@arndb.de" , "ard.biesheuvel@linaro.org" List-Id: linux-arch.vger.kernel.org On Mon, Mar 02, 2015 at 02:55:41PM +0000, Vladimir Murzin wrote: > Hi, Hi Vladimir, > 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. > > Patches are built on top of 4.0-rc1 Thanks for putting this together. I've found this extremely useful for tracking down an issue with some errant DMA on an arm64 platform. For the first three patches: Tested-by: Mark Rutland Thanks, Mark. > > Vladimir Murzin (4): > mm: move memtest under /mm > memtest: use phys_addr_t for physical addresses > arm64: add support for memtest > arm: add support for memtest > > 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 +++++++++++++++++++++++++++++++++++++++++++ > 10 files changed, 143 insertions(+), 139 deletions(-) > delete mode 100644 arch/x86/mm/memtest.c > create mode 100644 mm/memtest.c > > -- > 1.7.9.5 > From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from foss.arm.com ([217.140.101.70]:51362 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756764AbbCCQiK (ORCPT ); Tue, 3 Mar 2015 11:38:10 -0500 Date: Tue, 3 Mar 2015 16:37:40 +0000 From: Mark Rutland Subject: Re: [RFC PATCH 0/4] make memtest a generic kernel feature Message-ID: <20150303163740.GA10239@leverpostej> References: <1425308145-20769-1-git-send-email-vladimir.murzin@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1425308145-20769-1-git-send-email-vladimir.murzin@arm.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Vladimir Murzin Cc: "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "linux-arch@vger.kernel.org" , "x86@kernel.org" , "linux-arm-kernel@lists.infradead.org" , "tglx@linutronix.de" , "mingo@redhat.com" , "hpa@zytor.com" , "akpm@linux-foundation.org" , "lauraa@codeaurora.org" , Catalin Marinas , Will Deacon , "linux@arm.linux.org.uk" , "arnd@arndb.de" , "ard.biesheuvel@linaro.org" Message-ID: <20150303163740.8SjItICxuGtMuThgbOZvZsXhh3Th2wYyXLnSNfBZdns@z> On Mon, Mar 02, 2015 at 02:55:41PM +0000, Vladimir Murzin wrote: > Hi, Hi Vladimir, > 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. > > Patches are built on top of 4.0-rc1 Thanks for putting this together. I've found this extremely useful for tracking down an issue with some errant DMA on an arm64 platform. For the first three patches: Tested-by: Mark Rutland Thanks, Mark. > > Vladimir Murzin (4): > mm: move memtest under /mm > memtest: use phys_addr_t for physical addresses > arm64: add support for memtest > arm: add support for memtest > > 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 +++++++++++++++++++++++++++++++++++++++++++ > 10 files changed, 143 insertions(+), 139 deletions(-) > delete mode 100644 arch/x86/mm/memtest.c > create mode 100644 mm/memtest.c > > -- > 1.7.9.5 >