rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9660
(detected by 0, t=10502 jiffies, g=30405, q=133424)
task:syz.2.1144 state:R running task stack:24832 pid: 9660 ppid: 8952 flags:0x0000400c
Call Trace:
sched_show_task+0x444/0x570 kernel/sched/core.c:8659
rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:233 [inline]
print_other_cpu_stall+0xe73/0x1220 kernel/rcu/tree_stall.h:573
check_cpu_stall kernel/rcu/tree_stall.h:745 [inline]
rcu_pending kernel/rcu/tree.c:3936 [inline]
rcu_sched_clock_irq+0x831/0x1110 kernel/rcu/tree.c:2619
update_process_times+0x193/0x200 kernel/time/timer.c:1818
tick_sched_handle kernel/time/tick-sched.c:254 [inline]
tick_sched_timer+0x37d/0x560 kernel/time/tick-sched.c:1473
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x4fe/0xc40 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
__sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:check_preemption_disabled+0x49/0x110 lib/smp_processor_id.c:55
Code: 65 8b 0d b2 f1 58 76 f7 c1 ff ff ff 7f 74 1f 65 48 8b 0c 25 28 00 00 00 48 3b 4c 24 08 0f 85 c4 00 00 00 48 83 c4 10 5b 41 5e <41> 5f 5d c3 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00
RSP: 0018:ffffc90000007648 EFLAGS: 00000282
RAX: 0000000000000000 RBX: 0000000000000001 RCX: e1f342f137986f00
RDX: 0000000000000100 RSI: ffffffff8b0d98c0 RDI: ffffffff8a59e580
RBP: ffffc90000007860 R08: dffffc0000000000 R09: ffffc900000077b0
R10: fffff52000000efa R11: 1ffff92000000ef6 R12: 0000000000000001
R13: dffffc0000000000 R14: ffffffff8d6b5420 R15: ffff88801ebfa1e0
xt_write_recseq_end include/linux/netfilter/x_tables.h:397 [inline]
ip6t_do_table+0x12e6/0x14b0 net/ipv6/netfilter/ip6_tables.c:376
nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline]
nf_hook_slow+0xb9/0x200 net/netfilter/core.c:584
nf_hook include/linux/netfilter.h:257 [inline]
NF_HOOK include/linux/netfilter.h:300 [inline]
ndisc_send_skb+0x1372/0x14a0 net/ipv6/ndisc.c:513
addrconf_rs_timer+0x2b8/0x600 net/ipv6/addrconf.c:3956
call_timer_fn+0x16c/0x530 kernel/time/timer.c:1451
expire_timers kernel/time/timer.c:1496 [inline]
__run_timers+0x525/0x7c0 kernel/time/timer.c:1767
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
handle_softirqs+0x328/0x820 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:finish_lock_switch+0x134/0x280 kernel/sched/core.c:4804
Code: be ff ff ff ff e8 7c fc 55 08 85 c0 74 4a 4d 85 ff 75 66 0f 1f 44 00 00 48 89 df e8 76 67 5f 08 e8 11 76 2a 00 fb 48 83 c4 08 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 48 89 df e8 d9 0f fe ff 43 80 3c
RSP: 0018:ffffc9000337f448 EFLAGS: 00000286
RAX: e1f342f137986f00 RBX: ffff8880b903a340 RCX: e1f342f137986f00
RDX: dffffc0000000000 RSI: ffffffff8a0b1c60 RDI: ffffffff8a59e580
RBP: 1ffff11017207613 R08: dffffc0000000000 R09: ffffed1017207662
R10: ffffed1017207662 R11: 1ffff11017207661 R12: 1ffff110172075c1
R13: dffffc0000000000 R14: ffff8880b903ae08 R15: 0000000000000000
finish_task_switch+0x12f/0x640 kernel/sched/core.c:4921
context_switch kernel/sched/core.c:5052 [inline]
__schedule+0x11c3/0x4390 kernel/sched/core.c:6395
preempt_schedule_irq+0xb1/0x150 kernel/sched/core.c:6799
irqentry_exit+0x63/0x70 kernel/entry/common.c:432
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:skb_cloned include/linux/skbuff.h:1716 [inline]
RIP: 0010:skb_ensure_writable+0xa0/0x450 net/core/skbuff.c:5784
Code: 5b a5 f9 49 be 00 00 00 00 00 fc ff df 48 8d 6b 7e 49 89 ef 49 c1 ef 03 43 0f b6 04 37 84 c0 0f 85 dc 02 00 00 44 0f b6 65 00 <44> 89 e6 83 e6 01 45 31 f6 31 ff e8 a0 5d a5 f9 41 f6 c4 01 75 0a
RSP: 0018:ffffc9000337f828 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8880748cf780 RCX: 0000000000080000
RDX: ffffc9000fb11000 RSI: 000000000000425a RDI: 000000000000425b
RBP: ffff8880748cf7fe R08: dffffc0000000000 R09: ffffed100c278c9d
R10: ffffed100c278c9d R11: 1ffff1100c278c9c R12: 0000000000000001
R13: 0000000000000001 R14: dffffc0000000000 R15: 1ffff1100e919eff
__bpf_try_make_writable net/core/filter.c:1667 [inline]
bpf_try_make_writable net/core/filter.c:1673 [inline]
bpf_try_make_head_writable net/core/filter.c:1681 [inline]
____bpf_clone_redirect net/core/filter.c:2449 [inline]
bpf_clone_redirect+0x10f/0x390 net/core/filter.c:2425
bpf_prog_e26ebb0c7d00e66b+0x59/0x208
bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
bpf_test_run+0x292/0x7d0 net/bpf/test_run.c:119
bpf_prog_test_run_skb+0x9cc/0x1180 net/bpf/test_run.c:669
bpf_prog_test_run+0x31e/0x390 kernel/bpf/syscall.c:3374
__sys_bpf+0x535/0x670 kernel/bpf/syscall.c:4675
__do_sys_bpf kernel/bpf/syscall.c:4761 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4759 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4759
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc66f7616c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc66d9c8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fc66f9b7fa0 RCX: 00007fc66f7616c9
RDX: 0000000000000050 RSI: 0000200000000600 RDI: 000000000000000a
RBP: 00007fc66f7e3f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc66f9b8038 R14: 00007fc66f9b7fa0 R15: 00007ffc7cfeb108