rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 1, t=10502 jiffies, g=206229, q=1067)
rcu: All QSes seen, last rcu_preempt kthread activity 10447 (4295082252-4295071805), jiffies_till_next_fqs=1, root ->qsmask 0x0
syz-executor.2  R  running task    25232 24152   9264 0x80004002
Call Trace:
 <IRQ>
 sched_show_task kernel/sched/core.c:5935 [inline]
 sched_show_task.cold+0x2ed/0x34e kernel/sched/core.c:5910
 print_other_cpu_stall kernel/rcu/tree_stall.h:410 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:538 [inline]
 rcu_pending kernel/rcu/tree.c:2795 [inline]
 rcu_sched_clock_irq.cold+0xafc/0xc12 kernel/rcu/tree.c:2244
 update_process_times+0x2d/0x70 kernel/time/timer.c:1726
 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:167
 tick_sched_timer+0x53/0x140 kernel/time/tick-sched.c:1299
 __run_hrtimer kernel/time/hrtimer.c:1514 [inline]
 __hrtimer_run_queues+0x364/0xe40 kernel/time/hrtimer.c:1576
 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1638
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline]
 smp_apic_timer_interrupt+0x160/0x610 arch/x86/kernel/apic/apic.c:1135
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:756 [inline]
RIP: 0010:lock_acquire+0x20b/0x410 kernel/locking/lockdep.c:4490
Code: 94 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 d3 01 00 00 48 83 3d 71 d1 99 07 00 0f 84 53 01 00 00 48 8b 7d c8 57 9d <0f> 1f 44 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 65 8b
RSP: 0018:ffff888218d16f50 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff11e63d4 RBX: ffff88803dc5a1c0 RCX: ffffffff81590092
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: 0000000000000286
RBP: ffff888218d16f98 R08: 0000000000001d78 R09: fffffbfff14efd37
R10: ffff88803dc5ab20 R11: ffff88803dc5a1c0 R12: ffff888095bd29b8
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151
 spin_lock include/linux/spinlock.h:338 [inline]
 task_lock include/linux/sched/task.h:168 [inline]
 find_lock_task_mm+0x10b/0x2c0 mm/oom_kill.c:139
 oom_badness.part.0+0x25/0x670 mm/oom_kill.c:206
 oom_badness mm/oom_kill.c:342 [inline]
 oom_evaluate_task mm/oom_kill.c:342 [inline]
 oom_evaluate_task+0x406/0x550 mm/oom_kill.c:309
 mem_cgroup_scan_tasks+0xcf/0x180 mm/memcontrol.c:1215
 select_bad_process mm/oom_kill.c:368 [inline]
 out_of_memory mm/oom_kill.c:1097 [inline]
 out_of_memory+0x29c/0x1340 mm/oom_kill.c:1043
 mem_cgroup_out_of_memory+0x1d8/0x240 mm/memcontrol.c:1593
 mem_cgroup_oom mm/memcontrol.c:1925 [inline]
 try_charge+0xf4b/0x1440 mm/memcontrol.c:2612
 mem_cgroup_try_charge+0x136/0x590 mm/memcontrol.c:6504
 mem_cgroup_try_charge_delay+0x1f/0xa0 mm/memcontrol.c:6519
 wp_page_copy+0x407/0x1860 mm/memory.c:2333
 do_wp_page+0x543/0x15c0 mm/memory.c:2628
 handle_pte_fault mm/memory.c:3865 [inline]
 __handle_mm_fault+0x23ec/0x4040 mm/memory.c:3973
 handle_mm_fault+0x3b7/0xaa0 mm/memory.c:4010
 do_user_addr_fault arch/x86/mm/fault.c:1441 [inline]
 __do_page_fault+0x536/0xdd0 arch/x86/mm/fault.c:1506
 do_page_fault+0x38/0x590 arch/x86/mm/fault.c:1530
 page_fault+0x39/0x40 arch/x86/entry/entry_64.S:1202
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 arch/x86/lib/copy_user_64.S:205
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 <f3> a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 f3 a4
RSP: 0018:ffff888218d17ab8 EFLAGS: 00010206
RAX: 0000000000000001 RBX: 0000000000001000 RCX: 0000000000000500
RDX: 0000000000001000 RSI: ffff88821a9cdb00 RDI: 000000002017f000
RBP: ffff888218d17af0 R08: ffffed1043539c00 R09: 0000000000000000
R10: ffffed1043539bff R11: ffff88821a9cdfff R12: 000000002017e500
R13: ffff88821a9cd000 R14: 000000002017f500 R15: 00007ffffffff000
 copy_page_to_iter_iovec lib/iov_iter.c:211 [inline]
 copy_page_to_iter+0x3de/0xda0 lib/iov_iter.c:900
 pipe_to_user+0xb4/0x170 fs/splice.c:1248
 splice_from_pipe_feed fs/splice.c:500 [inline]
 __splice_from_pipe+0x397/0x7d0 fs/splice.c:624
 vmsplice_to_user fs/splice.c:1272 [inline]
 do_vmsplice.part.0+0x249/0x2b0 fs/splice.c:1350
 do_vmsplice fs/splice.c:1344 [inline]
 __do_sys_vmsplice+0x1bc/0x210 fs/splice.c:1371
 __se_sys_vmsplice fs/splice.c:1353 [inline]
 __x64_sys_vmsplice+0x97/0xf0 fs/splice.c:1353
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459ef9
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:00007f5cccc97c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000116
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459ef9
RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5cccc986d4
R13: 00000000004c9b4d R14: 00000000004e1568 R15: 00000000ffffffff
rcu: rcu_preempt kthread starved for 10517 jiffies! g206229 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    29040    10      2 0x80004000
Call Trace:
 context_switch kernel/sched/core.c:3384 [inline]
 __schedule+0x94f/0x1e70 kernel/sched/core.c:4069
 schedule+0xd9/0x260 kernel/sched/core.c:4136
 schedule_timeout+0x486/0xc50 kernel/time/timer.c:1895
 rcu_gp_fqs_loop kernel/rcu/tree.c:1639 [inline]
 rcu_gp_kthread+0x9b2/0x18d0 kernel/rcu/tree.c:1799
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352