rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P7520
rcu: 	(detected by 0, t=10502 jiffies, g=21593, q=8822 ncpus=2)
task:syz.0.354       state:R  running task     stack:23304 pid:7520  tgid:7507  ppid:5856   task_flags:0x400140 flags:0x00004006
Call Trace:
 <IRQ>
 sched_show_task+0x49d/0x630 kernel/sched/core.c:7665
 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:292 [inline]
 print_other_cpu_stall+0xfa6/0x1370 kernel/rcu/tree_stall.h:681
 check_cpu_stall kernel/rcu/tree_stall.h:857 [inline]
 rcu_pending kernel/rcu/tree.c:3650 [inline]
 rcu_sched_clock_irq+0x9d1/0x1090 kernel/rcu/tree.c:2685
 update_process_times+0x23c/0x2f0 kernel/time/timer.c:2473
 tick_sched_handle kernel/time/tick-sched.c:276 [inline]
 tick_nohz_handler+0x39a/0x520 kernel/time/tick-sched.c:297
 __run_hrtimer kernel/time/hrtimer.c:1761 [inline]
 __hrtimer_run_queues+0x4e0/0xc60 kernel/time/hrtimer.c:1825
 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1887
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline]
 __sysvec_apic_timer_interrupt+0x108/0x410 arch/x86/kernel/apic/apic.c:1056
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x11/0x70 kernel/kcov.c:217
Code: 5b e9 23 e5 59 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 a0 a5 92 <65> 8b 15 88 e8 e5 10 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75
RSP: 0018:ffffc9001b47edf8 EFLAGS: 00000207
RAX: ffffffff8a1fc3f6 RBX: 00000000d2040000 RCX: ffff88803491bc00
RDX: ffff88803491bc00 RSI: 00000000d2040000 RDI: 0000000001000000
RBP: ffffc9001b47f020 R08: ffff88807e387250 R09: dffffc0000000000
R10: 000000000000000a R11: 0000000000000002 R12: dffffc0000000000
R13: ffff888077668000 R14: 0000000001000000 R15: 1ffff1100fc70e48
 __xfrm_state_lookup_all net/xfrm/xfrm_state.c:1164 [inline]
 xfrm_state_find+0x2a76/0x5400 net/xfrm/xfrm_state.c:1499
 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2522 [inline]
 xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:2573 [inline]
 xfrm_resolve_and_create_bundle+0x768/0x2f90 net/xfrm/xfrm_policy.c:2871
 xfrm_lookup_with_ifid+0x2a7/0x1a70 net/xfrm/xfrm_policy.c:3205
 xfrm_lookup net/xfrm/xfrm_policy.c:3336 [inline]
 xfrm_lookup_route+0x3c/0x1c0 net/xfrm/xfrm_policy.c:3347
 ip6_dst_lookup_flow net/ipv6/ip6_output.c:1267 [inline]
 ip6_sk_dst_lookup_flow+0x790/0x980 net/ipv6/ip6_output.c:1299
 udpv6_sendmsg+0x18df/0x2700 net/ipv6/udp.c:1708
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0xe5/0x270 net/socket.c:729
 ____sys_sendmsg+0x52d/0x830 net/socket.c:2614
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
 __sys_sendmmsg+0x227/0x430 net/socket.c:2757
 __do_sys_sendmmsg net/socket.c:2784 [inline]
 __se_sys_sendmmsg net/socket.c:2781 [inline]
 __x64_sys_sendmmsg+0xa0/0xc0 net/socket.c:2781
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc60e38e929
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:00007fc60f115038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007fc60e5b6240 RCX: 00007fc60e38e929
RDX: 0000000000000002 RSI: 0000200000000a80 RDI: 0000000000000008
RBP: 00007fc60e410b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc60e5b6240 R15: 00007ffee2052138
 </TASK>