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[172.10.233.147]) by smtp.gmail.com with ESMTPSA id r21-20020a05683002f500b005b249ffa43fsm3483775ote.22.2022.03.11.01.45.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Mar 2022 01:45:04 -0800 (PST) Date: Fri, 11 Mar 2022 01:44:54 -0800 (PST) From: Hugh Dickins X-X-Sender: hugh@ripple.anvils To: kernel test robot cc: Yang Shi , Stephen Rothwell , David Hildenbrand , Andrea Arcangeli , Hugh Dickins , "Kirill A . Shutemov" , LKML , lkp@lists.01.org, lkp@intel.com Subject: Re: [mm] aae2359b1a: BUG:Bad_rss-counter_state_mm:#type:MM_ANONPAGES_val In-Reply-To: <20220311022718.GC18612@xsang-OptiPlex-9020> Message-ID: References: <20220311022718.GC18612@xsang-OptiPlex-9020> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 11 Mar 2022, kernel test robot wrote: > > Greeting, > > FYI, we noticed the following commit (built with gcc-9): > > commit: aae2359b1a514180633c4a4e6666c91e44a928c8 ("mm: thp: don't have to lock page anymore when splitting PMD") Yes, known bad patch, replaced by good patch a day or two later. > url: https://github.com/0day-ci/linux/commits/Qianggui-Song/arm64-dts-meson-s4-add-gpio_intc-node/20220310-172923 > > in testcase: trinity > version: trinity-static-i386-x86_64-f93256fb_2019-08-28 > with following parameters: > > runtime: 300s > group: group-01 > > test-description: Trinity is a linux system call fuzz tester. > test-url: http://codemonkey.org.uk/projects/trinity/ > > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > > If you fix the issue, kindly add following tag > Reported-by: kernel test robot > > > [ 20.947643][ T4079] mm/pgtable-generic.c:51: bad pmd e7d8e333(8000000433c000c5) > [ 20.949757][ T427] BUG: Bad rss-counter state mm:84638533 type:MM_ANONPAGES val:512 > [ 20.951030][ T427] BUG: non-zero pgtables_bytes on freeing mm: 4096 > [ 20.960329][ T4080] mm/pgtable-generic.c:51: bad pmd 6dc594d8(8000000433c000c5) > [ 20.961775][ T427] BUG: Bad rss-counter state mm:bf324b3f type:MM_ANONPAGES val:512 > [ 20.963109][ T427] BUG: non-zero pgtables_bytes on freeing mm: 4096 > [ 20.974600][ T4081] mm/pgtable-generic.c:51: bad pmd d1c9ec63(8000000433c000c5) > [ 20.977758][ T427] BUG: Bad rss-counter state mm:e038d31c type:MM_ANONPAGES val:512 > [ 20.978918][ T427] BUG: non-zero pgtables_bytes on freeing mm: 4096 > [ 20.982960][ T4082] mm/pgtable-generic.c:51: bad pmd 8d2043e0(8000000433c000c5) > [ 20.994138][ T4083] BUG: Bad rss-counter state mm:890a50d8 type:MM_ANONPAGES val:512 > [ 20.995441][ T4083] BUG: non-zero pgtables_bytes on freeing mm: 4096 > [ 20.997140][ T4083] mm/pgtable-generic.c:51: bad pmd 78b279e7(8000000433c000c5) > [ 21.088268][ T3649] BUG: Bad rss-counter state mm:10e6eb4f type:MM_ANONPAGES val:512 > [ 21.089552][ T3649] BUG: non-zero pgtables_bytes on freeing mm: 4096