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Mon, 4 Dec 2023 13:40:02 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface From: Stefan Roesch To: Petr Vorel Cc: kernel-team@fb.com, david@redhat.com, oliver.sang@intel.com, linux-mm@kvack.org, ltp@lists.linux.it, liwang@redhat.com Subject: Re: [PATCH v2 1/2] mem: disable KSM smart scan for ksm tests Date: Mon, 04 Dec 2023 10:38:14 -0800 References: <20231201210930.2651725-1-shr@devkernel.io> <20231201210930.2651725-2-shr@devkernel.io> <20231204104547.GB22019@pevik> User-agent: mu4e 1.10.3; emacs 29.1 In-reply-to: <20231204104547.GB22019@pevik> X-TUID: OfuWPN+9L6d7 Message-Id: <20231204184002.AF102B60089@mailuser.nyi.internal> X-Stat-Signature: y7o4zyuryjzz3935mi4yzsch9ijjxx9x X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: A71CB20024 X-Rspam-User: X-HE-Tag: 1701715203-233830 X-HE-Meta: U2FsdGVkX18WBYP2X+BlW+6S7ky2I+IPbP0B5N8+jADehqwKZIQNo44TB69oWoFqoZKJue/Of+ZX2EX/Imr3XslxeIm4kXQOk+NrNBCWkA5qeGPlHYTq+9tmUXYeboZc+lPousZ/yW5XuTB9puQPtl/5byBsvIG2Ho/FZM+HH/NaKNr6wiUJL33zn88VPjpdqWJaBCYeD7bahR830FksVksA+DeanNMfLvCwVh4lySHIDn5UyuBu8df+7TndCYjo7zXm9BA1KyV25/T+zKkoYu2y9enS2mMNRSSppFLro1Enaw/M5yeZ6x1gwferNUBgAlHPJiacj2eo9DxEEqUybNNcSXg84U+76a2jFFGbfuEp6dhSJGwwX9X4mgB+Df9GrqlgVE/IUU+0y782d/JAoeOh3KPzHGKwz21wbYVi3dwdkBJUudLWqR1dtixHtk2dfxrzI7fI11ChCSZEjHNTBj1BSmFSlTELfyyJIOnG/6ZUCtgP67A7ARtUId+EVSGB/afl6nayZp1rZMGXtXvlAIaHwsnRcDRxJmR8StPRYmTImZDfz0KAs8eNOBVfGDebnnCfsiL+QFw0El6Xidgd4QAnatzfr4P4WC0jw+vF/gD4fD3RVgvr0cJflv3/byD6D+uryVc8a01TY8C8WE4P7+Rt5wfEn2A7LYtsrf6X2JgrLZTT0qtHdF37hLYyHW5859/yf482rPNSTmhkERBPZT59Psi57gr5Y241iwm4tKYLPyih8hzolp8Mri7myuEkBUKtuA0VfbYBGw2ZfvWKc2mQXiBY6AakgaJOzaA6BHFfcAHu40sGy41gN8NTImLi2KK5NrqoBYdqi3eFlFsGoIHC3q8JR15HYR332HWh4BTmRHbm8dYBNslCZdkATHdePv0BZVDG50anRspHqOB4JkY2qUf98GODzlos7SIiILVcNyPReQjqtXnjUHegAnopdW0HzqPM6wWPjzVV8MJ +qWJNtKI /d09iMCJHHqsQ86lhEhBXv/PP8aLSIfYQBwQPMo+vpCmP+Yh+DH4JmOJq8APLB59DBWiITbk8rSGAlpfX4HgNd7hufWm0XZmRrHbdNnRQjEP4wmRap0lUB1AliiYRx46fp2R7/1zQNnb/uhtMiN1R5V4tPH2Hj7xN3qYsKWYRclN6fDFC9/maKy2mkYK1zZyju6nS4cAQ26ecHINJzJ0RvmOLnGPcv+6/mw4MdyT6FqUFjn1L9O6zE4jNE4Rnb8Vm6aoLh+/U2KNh/W4= 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: List-Subscribe: List-Unsubscribe: Petr Vorel writes: > Hi Stefan, > >> This disables the "smart scan" KSM feature to make sure that the volatile >> count remains at 0. > >> Signed-off-by: Stefan Roesch > >> Reported-by: kernel test robot >> Closes: https://lore.kernel.org/oe-lkp/202311161132.13d8ce5a-oliver.sang@intel.com >> --- >> testcases/kernel/mem/ksm/ksm01.c | 2 ++ >> testcases/kernel/mem/ksm/ksm02.c | 2 ++ >> testcases/kernel/mem/ksm/ksm03.c | 2 ++ >> testcases/kernel/mem/ksm/ksm04.c | 2 ++ > Li suggested in v1, that also ksm0[56].c should disable smart_scan (ksm05.c is > questionable, but since you prepared ksm07 it can IMHO be disable in both ksm0[56].c). > > https://lore.kernel.org/ltp/CAEemH2fqamX720diM1N+iN9a8HM30_5sHg8V0EMHgHdrh3iZPw@mail.gmail.com/ > > With that, you can add: > Reviewed-by: Petr Vorel > > Kind regards, > Petr The next version will also disable smart scan for ksm05 and ksm06