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Sat, 13 May 2023 01:52:32 -0700 (PDT) Received: from localhost ([102.36.222.112]) by smtp.gmail.com with ESMTPSA id j15-20020a05600c1c0f00b003f1738d0d13sm19249411wms.1.2023.05.13.01.52.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 13 May 2023 01:52:30 -0700 (PDT) Date: Fri, 12 May 2023 17:01:31 +0300 From: Dan Carpenter To: Chuck Lever III Cc: Naresh Kamboju , open list , linux-mm , kasan-dev , "kunit-dev@googlegroups.com" , "lkft-triage@lists.linaro.org" , Marco Elver , Andrew Morton , Mel Gorman , Andrey Ryabinin Subject: Re: next: WARNING: CPU: 0 PID: 1200 at mm/page_alloc.c:4744 __alloc_pages+0x2e8/0x3a0 Message-ID: <1059342c-f45a-4065-b088-f7a61833096e@kili.mountain> References: <6c7a89ba-1253-41e0-82d0-74a67a2e414e@kili.mountain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: BEC6E20002 X-Stat-Signature: yr4p7iwcdibarj45fhja97jqeztuxkcy X-HE-Tag: 1683967953-593745 X-HE-Meta: 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 jALjx2Gm 0GUlN5D4wG3MnRB4pOpdYjy99y6xyFtGJhD94rC2N9oOT33VhXVQQHZzbIIX4kB62803g81iIwcJRsCRI/CuYU42GiJc3BVeDIjm/uocHiOpDn5Sq0rDyGgJoozNzYHEq2s7qz1a65oSyShHZGCYEZWgjHEZ7g2ZuNpu67GHeDdw7vFe78xNmxcEGCU48MqnKP2IU6JucWWdMQWeYi2c5Fc2rcd8lIE71GdKGuwWsq7BdLiwSfA98BXZRnprDoYdH0D4dZHL7GdLCWgh2p2Rhj2d933kE6oCxpHCHokRotkhvF0j9lat36TVRq9S+u5APhPL+yNph02O9Tr7NgYjhnXl7LQwkgRhrdLsITBBXfhUnncgxmO5XPzBg6AbR7Xc4MAvg3zWLUQWea7aKzDRgVaLML8ICKzTEmcbr1TBsRsffoHWJAEeUp9vYJLwtpXB5wY86 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 Fri, May 12, 2023 at 01:56:30PM +0000, Chuck Lever III wrote: > > > > On May 12, 2023, at 6:32 AM, Dan Carpenter wrote: > > > > I'm pretty sure Chuck Lever did this intentionally, but he's not on the > > CC list. Let's add him. > > > > regards, > > dan carpenter > > > > On Fri, May 12, 2023 at 06:15:04PM +0530, Naresh Kamboju wrote: > >> Following kernel warning has been noticed on qemu-arm64 while running kunit > >> tests while booting Linux 6.4.0-rc1-next-20230512 and It was started from > >> 6.3.0-rc7-next-20230420. > >> > >> Reported-by: Linux Kernel Functional Testing > >> > >> This is always reproducible on qemu-arm64, qemu-arm, qemu-x86 and qemu-i386. > >> Is this expected warning as a part of kunit tests ? > > Dan's correct, this Kunit test is supposed to check the > behavior of the API when a too-large privsize is specified. > > I'm not sure how to make this work without the superfluous > warning. Would adding GFP_NOWARN to the allocation help? That would silence the splat, yes. regards, dan carpenter