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[71.184.117.43]) by smtp.gmail.com with ESMTPSA id j7sm13128661qti.14.2020.03.05.20.46.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 05 Mar 2020 20:46:27 -0800 (PST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3608.60.0.2.5\)) Subject: Re: [failures] mm-vmscan-remove-unnecessary-lruvec-adding.patch removed from -mm tree From: Qian Cai In-Reply-To: <9eb3efe1-f203-c3b1-679d-5e158fd8639f@linux.alibaba.com> Date: Thu, 5 Mar 2020 23:46:26 -0500 Cc: Hugh Dickins , Matthew Wilcox , LKML , Andrew Morton , aarcange@redhat.com, daniel.m.jordan@oracle.com, hannes@cmpxchg.org, khlebnikov@yandex-team.ru, kirill@shutemov.name, kravetz@us.ibm.com, mhocko@kernel.org, mm-commits@vger.kernel.org, tj@kernel.org, vdavydov.dev@gmail.com, yang.shi@linux.alibaba.com, linux-mm@kvack.org Content-Transfer-Encoding: quoted-printable Message-Id: <1E0DE356-9F9B-4E00-9F53-85E2FED99CF2@lca.pw> References: <20200306025041.rERhvnYmB%akpm@linux-foundation.org> <211632B1-2D6F-4BFA-A5A0-3030339D3D2A@lca.pw> <20200306033850.GO29971@bombadil.infradead.org> <97EE83E1-FEC9-48B6-98E8-07FB3FECB961@lca.pw> <9eb3efe1-f203-c3b1-679d-5e158fd8639f@linux.alibaba.com> To: Alex Shi X-Mailer: Apple Mail (2.3608.60.0.2.5) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: > On Mar 5, 2020, at 11:42 PM, Alex Shi = wrote: >=20 >=20 >=20 > =E5=9C=A8 2020/3/6 =E4=B8=8B=E5=8D=8812:17, Hugh Dickins =E5=86=99=E9=81= =93: >> On Thu, 5 Mar 2020, Qian Cai wrote: >>>> On Mar 5, 2020, at 10:38 PM, Matthew Wilcox = wrote: >>>>=20 >>>> On Thu, Mar 05, 2020 at 10:32:18PM -0500, Qian Cai wrote: >>>>>> On Mar 5, 2020, at 9:50 PM, akpm@linux-foundation.org wrote: >>>>>> The patch titled >>>>>> Subject: mm/vmscan: remove unnecessary lruvec adding >>>>>> has been removed from the -mm tree. Its filename was >>>>>> mm-vmscan-remove-unnecessary-lruvec-adding.patch >>>>>>=20 >>>>>> This patch was dropped because it had testing failures >>>>> Andrew, do you have more information about this failure? I hit a = bug >>>>> here under memory pressure and am wondering if this is related >>>>> which might save me some time digging=E2=80=A6 >> Very likely related. >>=20 >=20 > Hi all, >=20 > Apologize for the trouble! > And Many thanks for you all for the report! > Obviously, I missed memory stress testing which I should do. Apologize = again! >=20 > Qian Cai, > Which test case are you using? Could you share the reproduce steps for = me? LTP oom01 in a tight loop with swap, # i=3D0; while :; do echo $((i++)); oom01; sleep 5; done >=20 > Hugh, > Many thanks for help! I will seek some memory stress case and waiting = for your case. >=20 >=20 > Thank you all! > Alex