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================================================================== BUG: KCSAN: data-race in mm_update_next_owner / try_to_free_mem_cgroup_pages write to 0xffff888075aae064 of 4 bytes by task 30067 on cpu 0: memalloc_noreclaim_save include/linux/sched/mm.h:277 [inline] try_to_free_mem_cgroup_pages+0x1e7/0x4d0 mm/vmscan.c:3369 reclaim_high.constprop.0+0xf7/0x140 mm/memcontrol.c:2232 high_work_func+0x22/0x30 mm/memcontrol.c:2241 process_one_work+0x40b/0x8d0 kernel/workqueue.c:2264 worker_thread+0xa0/0x800 kernel/workqueue.c:2410 kthread+0x1d4/0x200 drivers/block/aoe/aoecmd.c:1253 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 read to 0xffff888075aae064 of 4 bytes by task 2603 on cpu 1: mm_update_next_owner+0x373/0x5a0 kernel/exit.c:389 exit_mm kernel/exit.c:484 [inline] do_exit+0x4a4/0x18c0 kernel/exit.c:784 do_group_exit+0xb4/0x1c0 kernel/exit.c:895 __do_sys_exit_group kernel/exit.c:906 [inline] __se_sys_exit_group kernel/exit.c:904 [inline] __x64_sys_exit_group+0x2e/0x30 kernel/exit.c:904 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 2603 Comm: syz-executor.2 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/02/10 14:41 | https://github.com/google/ktsan.git kcsan | f60f0f543333 | 35f5e45e | .config | console log | report | ci2-upstream-kcsan-gce |