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[217.140.110.172]) by mx.google.com with ESMTP id f11si1628909edb.356.2019.06.14.03.20.21 for ; Fri, 14 Jun 2019 03:20:21 -0700 (PDT) Received-SPF: pass (google.com: domain of will.deacon@arm.com designates 217.140.110.172 as permitted sender) client-ip=217.140.110.172; Authentication-Results: mx.google.com; spf=pass (google.com: domain of will.deacon@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=will.deacon@arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7FADF3EF; Fri, 14 Jun 2019 03:20:20 -0700 (PDT) Received: from fuggles.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6D72D3F246; Fri, 14 Jun 2019 03:22:03 -0700 (PDT) Date: Fri, 14 Jun 2019 11:20:17 +0100 From: Will Deacon To: Qian Cai Cc: Catalin Marinas , Anshuman Khandual , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , linux-arm-kernel@lists.infradead.org Subject: Re: LTP hugemmap05 test case failure on arm64 with linux-next (next-20190613) Message-ID: <20190614102017.GC10659@fuggles.cambridge.arm.com> References: <1560461641.5154.19.camel@lca.pw> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1560461641.5154.19.camel@lca.pw> User-Agent: Mutt/1.11.1+86 (6f28e57d73f2) () X-Bogosity: Ham, tests=bogofilter, spamicity=0.003862, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi Qian, On Thu, Jun 13, 2019 at 05:34:01PM -0400, Qian Cai wrote: > LTP hugemmap05 test case [1] could not exit itself properly and then degrade the > system performance on arm64 with linux-next (next-20190613). The bisection so > far indicates, > > BAD: 30bafbc357f1 Merge remote-tracking branch 'arm64/for-next/core' > GOOD: 0c3d124a3043 Merge remote-tracking branch 'arm64-fixes/for-next/fixes' Did you finish the bisection in the end? Also, what config are you using (you usually have something fairly esoteric ;)? Thanks, Will