Messages in this thread |  | | From | "Sang, Oliver" <> | Subject | RE: [mm/memcg] ade1ab542f: EIP:mem_cgroup_lruvec | Date | Sun, 22 Nov 2020 15:12:33 +0000 |
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please ignore this report. sorry for any inconvenience.
> -----Original Message----- > From: kernel test robot <oliver.sang@intel.com> > Sent: Sunday, November 22, 2020 6:36 PM > To: Alex Shi <alex.shi@linux.alibaba.com> > Cc: lkp <lkp@intel.com>; Andrew Morton <akpm@linux-foundation.org>; > Johannes Weiner <hannes@cmpxchg.org>; Shakeel Butt > <shakeelb@google.com>; Roman Gushchin <guro@fb.com>; Michal Hocko > <mhocko@suse.com>; Yafang Shao <laoar.shao@gmail.com>; Alexander Duyck > <alexander.h.duyck@linux.intel.com>; Hui Su <sh_def@163.com>; Wei Yang > <richard.weiyang@gmail.com>; LKML <linux-kernel@vger.kernel.org>; > lkp@lists.01.org > Subject: [mm/memcg] ade1ab542f: EIP:mem_cgroup_lruvec > > > Greeting, > > FYI, we noticed the following commit (built with gcc-9): > > commit: ade1ab542fdd4833c6bc9d685a4b4f3bfea83e00 ("mm/memcg: add > missed warning in mem_cgroup_lruvec") > url: https://github.com/0day-ci/linux/commits/UPDATE-20201120-183809/Alex- > Shi/mm-memcg-add-missed-warning-in-mem_cgroup_lruvec/20201120-173445 > > > in testcase: locktorture > version: > with following parameters: > > runtime: 300s > test: default > > test-description: This torture test consists of creating a number of kernel threads > which acquire the lock and hold it for specific amount of time, thus simulating > different critical region behaviors. > test-url: https://www.kernel.org/doc/Documentation/locking/locktorture.txt > > > on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 8G > > caused below changes (please refer to attached dmesg/kmsg for entire > log/backtrace): > > > +----------------------------------------------------------+-----------+------------+ > | | v5.10-rc4 | ade1ab542f | > +----------------------------------------------------------+-----------+------------+ > | boot_successes | 195 | 0 | > | WARNING:at_include/linux/memcontrol.h:#mem_cgroup_lruvec | 0 | 18 > | > | EIP:mem_cgroup_lruvec | 0 | 18 | > +----------------------------------------------------------+-----------+------------+ > > > If you fix the issue, kindly add following tag > Reported-by: kernel test robot <oliver.sang@intel.com> > > > [ 11.506736] WARNING: CPU: 0 PID: 147 at include/linux/memcontrol.h:476 > mem_cgroup_lruvec+0x1a/0x39 > [ 11.506745] Modules linked in: > [ 11.509082] ntfs: driver 2.1.32 [Flags: R/W DEBUG]. > [ 11.510771] > [ 11.510784] CPU: 0 PID: 147 Comm: kswapd0 Not tainted 5.10.0-rc4-00001- > gade1ab542fdd #1 > [ 11.513334] fuse: init (API version 7.32) > [ 11.515043] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS > 1.12.0-1 04/01/2014 > [ 11.517040] JFS: nTxBlock = 8192, nTxLock = 65536 > [ 11.517150] EIP: mem_cgroup_lruvec+0x1a/0x39 > [ 11.517161] Code: eb 06 8d 44 91 4c 8b 00 85 c0 79 02 31 c0 5d c3 55 89 e5 89 > c1 e8 7e ff ff ff 84 c0 74 08 8d 82 54 0b 00 00 eb 19 85 c9 75 08 <0f> 0b 8b 0d 64 > 84 7b 50 8b 82 50 0a 00 00 8b 84 81 60 07 00 00 39 > [ 11.521433] EAX: 00000000 EBX: 5078dfe0 ECX: 00000000 EDX: 5078dfe0 > [ 11.522288] ESI: 00000000 EDI: 00000002 EBP: 41b39f30 ESP: 41b39f30 > [ 11.523089] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010246 > [ 11.524480] CR0: 80050033 CR2: 00000000 CR3: 108e1000 CR4: 00000690 > [ 11.525772] Call Trace: > [ 11.526285] ? prepare_kswapd_sleep+0x59/0x87 > [ 11.527167] ? kswapd+0xd7/0x354 > [ 11.527897] ? __wake_up_locked_sync_key+0x17/0x17 > [ 11.528888] ? kthread+0xea/0xef > [ 11.529537] ? balance_pgdat+0x2df/0x2df > [ 11.530343] ? __list_del_entry+0x1c/0x1c > [ 11.531234] ? ret_from_fork+0x1c/0x30 > [ 11.532077] irq event stamp: 199 > [ 11.532751] hardirqs last enabled at (207): [<4e2803ab>] > console_unlock+0x479/0x4bb > [ 11.534133] hardirqs last disabled at (214): [<4e28018c>] > console_unlock+0x25a/0x4bb > [ 11.535480] softirqs last enabled at (230): [<4f34eb7f>] > __do_softirq+0x2ef/0x31f > [ 11.536514] softirqs last disabled at (223): [<4e20a975>] > call_on_stack+0x40/0x46 > [ 11.536566] SGI XFS with security attributes, scrub, quota, debug enabled > [ 11.537477] random: get_random_bytes called from init_oops_id+0x23/0x3b > with crng_init=0 > [ 11.537487] ---[ end trace cf4f454a846def0a ]--- > > > To reproduce: > > # build kernel > cd linux > cp config-5.10.0-rc4-00001-gade1ab542fdd .config > make HOSTCC=gcc-9 CC=gcc-9 ARCH=i386 olddefconfig prepare > modules_prepare bzImage modules > make HOSTCC=gcc-9 CC=gcc-9 ARCH=i386 INSTALL_MOD_PATH=<mod- > install-dir> modules_install > cd <mod-install-dir> > find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz > > > git clone https://github.com/intel/lkp-tests.git > cd lkp-tests > bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is > attached in this email > > > > Thanks, > Oliver Sang
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