rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8549
(detected by 0, t=10503 jiffies, g=6521, q=206)
syz-executor.2 R running task 24872 8549 8547 0x0000400a
Call Trace:
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
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:35 [inline]
RIP: 0010:memcg_kmem_enabled include/linux/memcontrol.h:1389 [inline]
RIP: 0010:memcg_kmem_uncharge include/linux/memcontrol.h:1401 [inline]
RIP: 0010:free_thread_stack+0x11f/0x590 kernel/fork.c:284
Code: 3e e8 45 73 ee ff 48 c1 e8 06 48 83 e0 c0 48 bf 00 00 00 00 00 ea ff ff 48 01 c7 be 03 00 00 00 e8 86 91 61 00 e9 5d 04 00 00 3c 2c 2e 00 48 89 df 31 f6 e8 02 8d 6f 00 43 80 3c 2e 00 74 08
RSP: 0018:ffffc90001f06eb8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff11014d4e221 RBX: ffffea000234a540 RCX: ffff888093b7a600
RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea000234a540
RBP: ffffc90001f06ef0 R08: 000000000003a728 R09: fffffbfff124248a
R10: fffffbfff124248a R11: 0000000000000000 R12: ffff8880a6a711a0
R13: dffffc0000000000 R14: 1ffff11014d4e234 R15: ffff88808fe3f7b8
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_notrace+0xdb/0x120 kernel/sched/core.c:4309
___preempt_schedule_notrace+0x16/0x27 arch/x86/entry/thunk_64.S:51
rcu_is_watching+0x82/0xa0 kernel/rcu/tree.c:923
rtnl_fill_ifinfo+0x39b3/0x4480 include/linux/rcupdate.h:667
rtmsg_ifinfo_build_skb+0xda/0x180 net/core/rtnetlink.c:3673
rtmsg_ifinfo_event net/core/rtnetlink.c:3705 [inline]
rtmsg_ifinfo+0x77/0x120 net/core/rtnetlink.c:3714
__dev_notify_flags+0x7c/0x4d0 net/core/dev.c:8137
dev_change_flags+0xec/0x190 net/core/dev.c:8179
do_setlink+0xb2e/0x3960 net/core/rtnetlink.c:2591
__rtnl_newlink net/core/rtnetlink.c:3238 [inline]
rtnl_newlink+0x14dd/0x1bd0 net/core/rtnetlink.c:3363
rtnetlink_rcv_msg+0x889/0xd40 net/core/rtnetlink.c:5424
netlink_rcv_skb+0x19e/0x3d0 net/netlink/af_netlink.c:2477
rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5442
netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
netlink_unicast+0x767/0x920 net/netlink/af_netlink.c:1328
netlink_sendmsg+0xa31/0xd50 net/netlink/af_netlink.c:1917
sock_sendmsg_nosec net/socket.c:639 [inline]
sock_sendmsg net/socket.c:659 [inline]
__sys_sendto+0x442/0x5e0 net/socket.c:1985
__do_sys_sendto net/socket.c:1997 [inline]
__se_sys_sendto net/socket.c:1993 [inline]
__x64_sys_sendto+0xe5/0x100 net/socket.c:1993
do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x414c43
Code: ff 0f 83 b0 19 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 2d 38 66 00 00 75 17 49 89 ca b8 2c 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 81 19 00 00 c3 48 83 ec 08 e8 87 fa ff ff
RSP: 002b:00007fff17594528 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000a72200 RCX: 0000000000414c43
RDX: 000000000000002c RSI: 0000000000a72250 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007fff17594530 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000a72250 R15: 0000000000000003
rcu: rcu_preempt kthread starved for 10535 jiffies! g6521 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt R running task 28984 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