rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (8361 ticks this GP) idle=421/1/0x4000000000000000 softirq=105932/105934 fqs=5113 (t=10501 jiffies g=173449 q=3469) NMI backtrace for cpu 1 CPU: 1 PID: 12966 Comm: syz.3.2059 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline] rcu_dump_cpu_stacks+0x223/0x390 kernel/rcu/tree_stall.h:349 print_cpu_stall+0x320/0x600 kernel/rcu/tree_stall.h:633 check_cpu_stall kernel/rcu/tree_stall.h:727 [inline] rcu_pending kernel/rcu/tree.c:3932 [inline] rcu_sched_clock_irq+0x8d9/0x1150 kernel/rcu/tree.c:2619 update_process_times+0x196/0x200 kernel/time/timer.c:1818 tick_sched_handle kernel/time/tick-sched.c:254 [inline] tick_sched_timer+0x386/0x550 kernel/time/tick-sched.c:1473 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline] __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:ndisc_send_rs+0xcf/0x6a0 net/ipv6/ndisc.c:677 Code: 24 08 49 89 c5 48 8d 78 6c 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 0f 85 0b 05 00 00 45 8b 7d 6c <41> 83 e7 04 31 ff 44 89 fe e8 f3 72 69 f8 48 83 c5 20 48 89 ef be RSP: 0018:ffffc90000dd0a50 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000006 RCX: dffffc0000000000 RDX: 0000000000000002 RSI: ffffffff8a8b3da0 RDI: ffff888039e1146c RBP: ffff888039e11400 R08: dffffc0000000000 R09: fffffbfff1bd2c16 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1101029204c R13: ffff888039e11400 R14: ffff888081490265 R15: 0000000000000080 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3959 call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451 expire_timers kernel/time/timer.c:1496 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1767 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558 __do_softirq kernel/softirq.c:592 [inline] invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653 sysvec_irq_work+0x8e/0xb0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:664 RIP: 0010:__sanitizer_cov_trace_pc+0x55/0x60 kernel/kcov.c:214 Code: 2c 8b 91 10 16 00 00 83 fa 02 75 21 48 8b 91 18 16 00 00 48 8b 32 48 8d 7e 01 8b 89 14 16 00 00 48 39 cf 73 08 48 89 44 f2 08 <48> 89 3a c3 0f 1f 80 00 00 00 00 4c 8b 04 24 65 48 8b 15 e4 14 82 RSP: 0018:ffffc90004a478c8 EFLAGS: 00000283 RAX: ffffffff842d10d5 RBX: ffffc90004a47ad8 RCX: 0000000000040000 RDX: ffffc9000626b000 RSI: 000000000000063d RDI: 000000000000063e RBP: ffffc90000e0e8c8 R08: dffffc0000000000 R09: ffffed1003d7bb2c R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000948f5d R13: ffffc90004a47ae8 R14: 1ffff920001c1d19 R15: ffffc90004a47ad0 plist_add+0xd5/0x490 lib/plist.c:80 __queue_me kernel/futex/core.c:2500 [inline] queue_me kernel/futex/core.c:2519 [inline] futex_wait_queue_me+0x159/0x480 kernel/futex/core.c:2846 futex_wait+0x2f8/0x740 kernel/futex/core.c:2964 do_futex+0x1414/0x1810 kernel/futex/core.c:3982 __do_sys_futex kernel/futex/core.c:4059 [inline] __se_sys_futex+0x407/0x490 kernel/futex/core.c:4040 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fa7bd741ff9 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:00007fa7bbbba0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fa7bd8f9f88 RCX: 00007fa7bd741ff9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa7bd8f9f88 RBP: 00007fa7bd8f9f80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa7bd8f9f8c R13: 0000000000000000 R14: 00007ffd546aa350 R15: 00007ffd546aa438