Memory cgroup stats for /syz2: cache:124KB rss:297076KB rss_huge:198656KB shmem:0KB mapped_file:0KB dirty:0KB writeback:0KB swap:0KB inactive_anon:95296KB active_anon:2360KB inactive_file:0KB active_file:4KB unevictable:199620KB
Memory cgroup out of memory: Kill process 3927 (syz-executor.2) score 1163 or sacrifice child
Killed process 3927 (syz-executor.2) total-vm:72720kB, anon-rss:18336kB, file-rss:34816kB, shmem-rss:0kB
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=166693, q=218)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295103564-4295093062), jiffies_till_next_fqs=1, root ->qsmask 0x0
syz-executor.1  R  running task    25896  5548   8009 0x80000002
Call Trace:
 <IRQ>
 sched_show_task kernel/sched/core.c:5338 [inline]
 sched_show_task.cold+0x2ee/0x35d kernel/sched/core.c:5313
 print_other_cpu_stall kernel/rcu/tree.c:1430 [inline]
 check_cpu_stall kernel/rcu/tree.c:1557 [inline]
 __rcu_pending kernel/rcu/tree.c:3293 [inline]
 rcu_pending kernel/rcu/tree.c:3336 [inline]
 rcu_check_callbacks.cold+0xaa1/0xd90 kernel/rcu/tree.c:2682
 update_process_times+0x32/0x80 kernel/time/timer.c:1638
 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:164
 tick_sched_timer+0x47/0x130 kernel/time/tick-sched.c:1274
 __run_hrtimer kernel/time/hrtimer.c:1401 [inline]
 __hrtimer_run_queues+0x33b/0xdc0 kernel/time/hrtimer.c:1463
 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1521
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline]
 smp_apic_timer_interrupt+0x111/0x550 arch/x86/kernel/apic/apic.c:1092
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x54/0x90 kernel/locking/spinlock.c:192
Code: c0 d8 5b f2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d ed 73 9c 01 00 74 20 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 82 f8 f2 f9 65 8b 05 cb 05 ac 78 85 c0 74 06 41
RSP: 0018:ffff8880a54af410 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff11e4b7b RBX: ffff8880a54af480 RCX: 1ffff1101254a556
RDX: dffffc0000000000 RSI: ffff888092a52a90 RDI: ffff888092a52a3c
RBP: ffff8880a54af418 R08: ffff888092a521c0 R09: ffff888092a52ab0
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff88fba5c0
R13: ffff8880a54af4e0 R14: ffff8880a31805c0 R15: 1ffff11014a95e8c
 spin_unlock_irq include/linux/spinlock.h:379 [inline]
 css_task_iter_next+0x175/0x210 kernel/cgroup/cgroup.c:4317
 mem_cgroup_scan_tasks+0xbb/0x180 mm/memcontrol.c:1105
 select_bad_process mm/oom_kill.c:373 [inline]
 out_of_memory mm/oom_kill.c:1116 [inline]
 out_of_memory+0x27a/0x1330 mm/oom_kill.c:1062
 mem_cgroup_out_of_memory+0x1d2/0x240 mm/memcontrol.c:1416
 mem_cgroup_oom mm/memcontrol.c:1742 [inline]
 try_charge+0xec5/0x1490 mm/memcontrol.c:2313
 mem_cgroup_try_charge+0x259/0x6b0 mm/memcontrol.c:5991
 mem_cgroup_try_charge_delay+0x1f/0xa0 mm/memcontrol.c:6006
 wp_page_copy+0x430/0x16a0 mm/memory.c:2520
 do_wp_page+0x57d/0x10b0 mm/memory.c:2799
 handle_pte_fault mm/memory.c:4057 [inline]
 __handle_mm_fault+0x2305/0x3f80 mm/memory.c:4165
 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202
 faultin_page mm/gup.c:530 [inline]
 __get_user_pages+0x609/0x1860 mm/gup.c:730
 populate_vma_page_range+0x20d/0x2a0 mm/gup.c:1234
 __mm_populate+0x204/0x380 mm/gup.c:1282
 mm_populate include/linux/mm.h:2323 [inline]
 __do_sys_mlockall mm/mlock.c:818 [inline]
 __se_sys_mlockall mm/mlock.c:795 [inline]
 __x64_sys_mlockall+0x35c/0x520 mm/mlock.c:795
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45af49
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9959919c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000097
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 000000000045af49
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f995991a6d4
R13: 00000000004c83c5 R14: 00000000004e0568 R15: 00000000ffffffff
rcu: rcu_preempt kthread starved for 10502 jiffies! g166693 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    29104    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2826 [inline]
 __schedule+0x866/0x1dc0 kernel/sched/core.c:3515
 schedule+0x92/0x1c0 kernel/sched/core.c:3559
 schedule_timeout+0x4db/0xfc0 kernel/time/timer.c:1806
 rcu_gp_kthread+0xd5c/0x2190 kernel/rcu/tree.c:2202
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415