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Fri, 12 May 2023 06:32:31 -0700 (PDT) Received: from localhost ([102.36.222.112]) by smtp.gmail.com with ESMTPSA id c3-20020a7bc843000000b003f31d44f0cbsm28824757wml.29.2023.05.12.06.32.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 May 2023 06:32:28 -0700 (PDT) Date: Fri, 12 May 2023 16:32:25 +0300 From: Dan Carpenter To: Naresh Kamboju , Chuck Lever Cc: 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: <6c7a89ba-1253-41e0-82d0-74a67a2e414e@kili.mountain> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Stat-Signature: otsthstgu58du4nz9xsbxay7zc43o3rn X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: E51981C0015 X-HE-Tag: 1683898352-914078 X-HE-Meta: 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 62E+08yz Lyha5E/bje/6QIfMKAWQfV7hZJ92A1+/571OYIy0yDs3GWCIDZQcyxjIcXxHFk+TtgTKO1Mqt3KMaefc4ypdL/im/ts6Sona0Tn6dxeRaUyy2jKTDQFHxIUqLXbY+6/B4bAqYmX3GBguaifwNIGZBmLPKCssaicsrepkQNIyaZWnjdn2UKd7wItBH1FOn0NHN+nrOirij6Zi+p1gRh6XUXBPypyNXYvlzHL7RR1Ph76f1RBSimeDUK5UOo3Jv4NFWE/d4WJ6DH295HYExpgPq21fwdB+DhjlzkE0qo/1H2EUBTiP62iYiuwTNLhDSqr8E6ffOAPgZFpzK4Cb2SPyKMGhnq3gnD+c6WXhlhQQE/NhLz4MRdUDve5QJKl9xjSeeWUA9ODwerqsGDdk1OjG794NEUx5kER30ZPmA 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: 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 ? > > Crash log: > ----------- > > [ 663.530868] KTAP version 1 > [ 663.531545] # Subtest: Handshake API tests > [ 663.533521] 1..11 > [ 663.534424] KTAP version 1 > [ 663.535406] # Subtest: req_alloc API fuzzing > [ 663.542460] ok 1 handshake_req_alloc NULL proto > [ 663.550345] ok 2 handshake_req_alloc CLASS_NONE > [ 663.558041] ok 3 handshake_req_alloc CLASS_MAX > [ 663.565790] ok 4 handshake_req_alloc no callbacks > [ 663.573882] ok 5 handshake_req_alloc no done callback > [ 663.580284] ------------[ cut here ]------------ > [ 663.582129] WARNING: CPU: 0 PID: 1200 at mm/page_alloc.c:4744 > __alloc_pages+0x2e8/0x3a0 > [ 663.585675] Modules linked in: > [ 663.587808] CPU: 0 PID: 1200 Comm: kunit_try_catch Tainted: G > N 6.4.0-rc1-next-20230512 #1 > [ 663.589817] Hardware name: linux,dummy-virt (DT) > [ 663.591426] pstate: 22400005 (nzCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) > [ 663.592978] pc : __alloc_pages+0x2e8/0x3a0 > [ 663.594236] lr : __kmalloc_large_node+0xbc/0x160 > [ 663.595548] sp : ffff80000a317bc0 > [ 663.596577] x29: ffff80000a317bc0 x28: 0000000000000000 x27: 0000000000000000 > [ 663.598863] x26: ffff0000c8925b20 x25: 0000000000000000 x24: 0000000000000015 > [ 663.601098] x23: 0000000000040dc0 x22: ffffbf424e7420c8 x21: ffffbf424e7420c8 > [ 663.603100] x20: 1ffff00001462f88 x19: 0000000000040dc0 x18: 0000000078b4155a > [ 663.605582] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 > [ 663.607328] x14: 0000000000000000 x13: 6461657268745f68 x12: ffff60001913bc5a > [ 663.609355] x11: 1fffe0001913bc59 x10: ffff60001913bc59 x9 : 1fffe0001913bc59 > [ 663.611004] x8 : 0000000041b58ab3 x7 : ffff700001462f88 x6 : dfff800000000000 > [ 663.613556] x5 : 00000000f1f1f1f1 x4 : 00000000f2f2f200 x3 : 0000000000000000 > [ 663.615364] x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffffbf42516818e2 > [ 663.617753] Call trace: > [ 663.618486] __alloc_pages+0x2e8/0x3a0 > [ 663.619613] __kmalloc_large_node+0xbc/0x160 > [ 663.621454] __kmalloc+0x84/0x94 > [ 663.622551] handshake_req_alloc+0x74/0xe8 > [ 663.623801] handshake_req_alloc_case+0xa0/0x170 > [ 663.625467] kunit_try_run_case+0x7c/0x100 > [ 663.626592] kunit_generic_run_threadfn_adapter+0x30/0x4c > [ 663.628998] kthread+0x1d4/0x1e4 > [ 663.629715] ret_from_fork+0x10/0x20 > [ 663.631094] ---[ end trace 0000000000000000 ]--- > [ 663.643101] ok 6 handshake_req_alloc excessive privsize > [ 663.649446] ok 7 handshake_req_alloc all good > [ 663.651032] # req_alloc API fuzzing: pass:7 fail:0 skip:0 total:7 > [ 663.653941] ok 1 req_alloc API fuzzing > [ 663.665951] ok 2 req_submit NULL req arg > [ 663.674278] ok 3 req_submit NULL sock arg > [ 663.682968] ok 4 req_submit NULL sock->file > [ 663.694323] ok 5 req_lookup works > [ 663.703604] ok 6 req_submit max pending > [ 663.714655] ok 7 req_submit multiple > [ 663.725174] ok 8 req_cancel before accept > [ 663.733780] ok 9 req_cancel after accept > [ 663.742528] ok 10 req_cancel after done > [ 663.750637] ok 11 req_destroy works > [ 663.751884] # Handshake API tests: pass:11 fail:0 skip:0 total:11 > [ 663.753579] # Totals: pass:17 fail:0 skip:0 total:17 > > links: > ------ > > - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230512/testrun/16901289/suite/log-parser-boot/test/check-kernel-exception/log > - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230512/testrun/16901289/suite/log-parser-boot/tests/ > - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230420/testrun/16385677/suite/log-parser-boot/test/check-kernel-warning-ac79d2ca0f443d407d9749244f1738c9a2b123c609820f82d9e8907c756f5340/log > - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230512/testrun/16901289/suite/log-parser-boot/test/check-kernel-warning-ac79d2ca0f443d407d9749244f1738c9a2b123c609820f82d9e8907c756f5340/history/ > > > -- > Linaro LKFT > https://lkft.linaro.org