rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P8484
	(detected by 1, t=10503 jiffies, g=7017, q=252)
syz-executor.1  R  running task    24584  8484   8483 0x0000400a
Call Trace:
 <IRQ>
 sched_show_task+0x40f/0x560 kernel/sched/core.c:5954
 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:190 [inline]
 print_other_cpu_stall kernel/rcu/tree_stall.h:398 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:538 [inline]
 rcu_pending kernel/rcu/tree.c:2827 [inline]
 rcu_sched_clock_irq+0x16b1/0x1ad0 kernel/rcu/tree.c:2271
 update_process_times+0x12d/0x180 kernel/time/timer.c:1726
 tick_sched_handle kernel/time/tick-sched.c:167 [inline]
 tick_sched_timer+0x263/0x420 kernel/time/tick-sched.c:1310
 __run_hrtimer kernel/time/hrtimer.c:1517 [inline]
 __hrtimer_run_queues+0x403/0x840 kernel/time/hrtimer.c:1579
 hrtimer_interrupt+0x38c/0xda0 kernel/time/hrtimer.c:1641
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline]
 smp_apic_timer_interrupt+0x109/0x280 arch/x86/kernel/apic/apic.c:1135
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
 </IRQ>
RIP: 0010:mod_memcg_page_state+0x123/0x190 include/linux/memcontrol.h:653
Code: e8 22 8f 6a 00 48 83 3d b2 fd e1 07 00 74 70 e8 c3 26 2e 00 4c 89 ff 57 9d 0f 1f 44 00 00 e8 44 cf 33 00 eb 43 e8 ad 26 2e 00 <eb> 3c e8 d6 cc 33 00 48 c7 c0 68 95 2a 89 48 c1 e8 03 42 80 3c 20
RSP: 0018:ffffc90002327618 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffffffff814897d3 RBX: 0000000000000000 RCX: ffff8880a7b104c0
RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002991940
RBP: ffffc90002327638 R08: 000000000003a728 R09: fffffbfff124248a
R10: fffffbfff124248a R11: 0000000000000000 R12: dffffc0000000000
R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880925cb878
 free_thread_stack+0x168/0x590 kernel/fork.c:280
 release_task_stack kernel/fork.c:440 [inline]
 put_task_stack+0xa3/0x130 kernel/fork.c:451
 finish_task_switch+0x3f1/0x550 kernel/sched/core.c:3256
 context_switch kernel/sched/core.c:3388 [inline]
 __schedule+0x9a8/0xcc0 kernel/sched/core.c:4081
 preempt_schedule_irq+0xc1/0x140 kernel/sched/core.c:4338
 retint_kernel+0x1b/0x2b
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:752 [inline]
RIP: 0010:queue_work_on+0x17c/0x1b0 kernel/workqueue.c:1517
Code: 48 c1 e8 03 80 3c 18 00 74 0c 48 c7 c7 68 95 2a 89 e8 78 66 64 00 48 83 3d 08 d5 db 07 00 74 36 e8 19 fe 27 00 4c 89 f7 57 9d <0f> 1f 44 00 00 44 89 f8 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d
RSP: 0018:ffffc90002327898 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: ffffffff814ec067 RBX: dffffc0000000000 RCX: ffff8880a7b104c0
RDX: 0000000000000000 RSI: ffffffff81b80077 RDI: 0000000000000286
RBP: ffffc900023278c8 R08: ffff8880a7b10d18 R09: fffffbfff12c962d
R10: fffffbfff12c962d R11: 0000000000000000 R12: ffff8880a1f3ce10
R13: ffff8880a7c87000 R14: 0000000000000286 R15: ffff8880a7c87001
 queue_work include/linux/workqueue.h:494 [inline]
 memcg_schedule_kmem_cache_create mm/memcontrol.c:2722 [inline]
 memcg_kmem_get_cache+0x457/0x570 mm/memcontrol.c:2803
 slab_pre_alloc_hook mm/slab.h:572 [inline]
 slab_alloc_node mm/slab.c:3227 [inline]
 kmem_cache_alloc_node_trace+0xa2/0x2d0 mm/slab.c:3593
 __do_kmalloc_node mm/slab.c:3615 [inline]
 __kmalloc_node+0x3c/0x60 mm/slab.c:3623
 kmalloc_node include/linux/slab.h:579 [inline]
 kvmalloc_node+0xcc/0x130 mm/util.c:574
 kvmalloc include/linux/mm.h:655 [inline]
 xt_alloc_table_info+0x45/0xb0 net/netfilter/x_tables.c:1176
 ip6t_register_table+0x75/0x460 net/ipv6/netfilter/ip6_tables.c:1775
 ip6table_nat_table_init+0x7f/0x220 net/ipv6/netfilter/ip6table_nat.c:101
 xt_find_table_lock+0x25b/0x3b0 net/netfilter/x_tables.c:1223
 xt_request_find_table_lock+0x27/0xc0 net/netfilter/x_tables.c:1253
 get_info+0x139/0x490 net/ipv6/netfilter/ip6_tables.c:981
 do_ip6t_get_ctl+0xeb/0x9b0 net/ipv6/netfilter/ip6_tables.c:1705
 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline]
 nf_getsockopt+0x287/0x2b0 net/netfilter/nf_sockopt.c:122
 ipv6_getsockopt+0x1c3/0x2c0 net/ipv6/ipv6_sockglue.c:1400
 tcp_getsockopt+0xbe/0xd0 net/ipv4/tcp.c:3690
 sock_common_getsockopt+0x99/0xb0 net/core/sock.c:3108
 __sys_getsockopt+0x24c/0x2b0 net/socket.c:2162
 __do_sys_getsockopt net/socket.c:2177 [inline]
 __se_sys_getsockopt net/socket.c:2174 [inline]
 __x64_sys_getsockopt+0xbf/0xd0 net/socket.c:2174
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45da5a
Code: b8 34 01 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 8d 8b fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 6a 8b fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007ffc45c30358 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045da5a
RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 0000000000000029 R08: 00007ffc45c3037c R09: 0000000000000000
R10: 00000000007181c8 R11: 0000000000000246 R12: 00000000004c86de
R13: 0000000000719cc0 R14: 00000000007181c8 R15: 00000000007181c0
rcu: rcu_preempt kthread starved for 10544 jiffies! g7017 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt     I28984    10      2 0x80004000
Call Trace:
 context_switch kernel/sched/core.c:3385 [inline]
 __schedule+0x9a0/0xcc0 kernel/sched/core.c:4081
 schedule+0x181/0x210 kernel/sched/core.c:4155
 schedule_timeout+0x14f/0x240 kernel/time/timer.c:1895
 rcu_gp_fqs_loop kernel/rcu/tree.c:1661 [inline]
 rcu_gp_kthread+0xed8/0x1770 kernel/rcu/tree.c:1821
 kthread+0x332/0x350 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352