rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2908 jiffies s: 8801 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4643 Comm: syz.0.237 Not tainted 6.1.109-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:irqentry_exit+0x7/0x80 kernel/entry/common.c:415 Code: 90 e8 3d bb ea f6 31 c0 5b c3 e8 64 09 00 00 e8 2f bb ea f6 b0 01 5b c3 eb e7 66 0f 1f 84 00 00 00 00 00 83 3d 8d 58 f3 03 00 <74> 16 65 8b 05 20 c1 5b 75 85 c0 75 0b 65 8b 05 05 be 5b 75 85 c0 RSP: 0018:ffffc900000070f0 EFLAGS: 00000002 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000010102 RDX: 1ffffffff2028000 RSI: 0000000000000000 RDI: ffffc900000070f8 RBP: 0000000000000000 R08: ffffffff90140000 R09: ffffffff90140008 R10: ffffffff90140018 R11: ffffffff90140010 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fe06229e6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30913ff8 CR3: 00000000611a7000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:168 [inline] RIP: 0010:unwind_next_frame+0x1ed/0x2220 arch/x86/kernel/unwind_orc.c:448 Code: 9b 0b 00 44 0f 45 f9 41 8d 47 ff 44 39 f0 0f 86 26 19 00 00 44 89 f0 48 8d 1c 85 bc ad af 8f 48 89 d8 48 c1 e8 03 0f b6 04 38 <84> c0 0f 85 d0 1a 00 00 44 8b 23 44 89 f0 ff c0 48 8d 1c 85 bc ad RSP: 0018:ffffc900000071a0 EFLAGS: 00000a06 RAX: 0000000000000000 RBX: ffffffff8fbd3f10 RCX: 000000000009e078 RDX: dffffc0000000000 RSI: ffffffff8464558c RDI: dffffc0000000000 RBP: 1ffff92000000e56 R08: 0000000000000002 R09: ffffc90000007370 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880271b9dc0 R13: ffffffff8464558b R14: 0000000000036455 R15: 000000000009e078 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383 kmalloc include/linux/slab.h:557 [inline] kzalloc include/linux/slab.h:693 [inline] ref_tracker_alloc+0x13c/0x470 lib/ref_tracker.c:85 __netdev_tracker_alloc include/linux/netdevice.h:4008 [inline] netdev_hold include/linux/netdevice.h:4037 [inline] dst_init+0xee/0x440 net/core/dst.c:52 dst_alloc+0x155/0x190 net/core/dst.c:92 ip6_dst_alloc net/ipv6/route.c:345 [inline] icmp6_dst_alloc+0x7b/0x470 net/ipv6/route.c:3269 ndisc_send_skb+0x344/0x14e0 net/ipv6/ndisc.c:491 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3963 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504 expire_timers kernel/time/timer.c:1549 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1820 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:finish_task_switch+0x1d3/0x810 kernel/sched/core.c:5120 Code: 32 0b 00 48 83 c4 08 4c 89 f7 e8 68 31 00 00 0f 1f 44 00 00 4c 89 f7 e8 3b bc 51 09 e8 16 21 32 00 fb 49 8d bc 24 f8 15 00 00 <48> 89 f8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28 RSP: 0018:ffffc900035df628 EFLAGS: 00000282 RAX: 5c087a18e0733600 RBX: ffff888025488034 RCX: ffffffff97332103 RDX: dffffc0000000000 RSI: ffffffff8b0c0260 RDI: ffff8880271bb3b8 RBP: ffffc900035df670 R08: dffffc0000000000 R09: ffffed10171c7539 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880271b9dc0 R13: 1ffff110171c76e3 R14: ffff8880b8e3a9c0 R15: ffff8880b8e3b718 context_switch kernel/sched/core.c:5244 [inline] __schedule+0x1447/0x4570 kernel/sched/core.c:6558 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870 irqentry_exit+0x53/0x80 kernel/entry/common.c:439 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:preempt_schedule+0xd9/0xe0 Code: 49 c7 04 1f 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 48 75 14 48 8d 65 e0 5b 41 5c 41 5e 41 5f 5d c3 e8 07 00 00 00 cc e8 80 5d f7 ff 41 57 41 56 53 49 bf 00 00 00 00 00 fc ff df RSP: 0018:ffffc900035df9c0 EFLAGS: 00000246 RAX: 1ffff11004e373b8 RBX: 1ffff920006bbf38 RCX: ffffffff8aaf4e76 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8880271b9dc0 RBP: ffffc900035dfa58 R08: dffffc0000000000 R09: ffffed1004e373b9 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920006bbf3c R13: 0000000000000000 R14: ffffc900035df9e0 R15: dffffc0000000000 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34 try_to_wake_up+0x87e/0x12e0 kernel/sched/core.c:4230 wake_up_process kernel/sched/core.c:4358 [inline] wake_up_q+0x8b/0xd0 kernel/sched/core.c:1006 futex_wake+0x4ea/0x590 kernel/futex/waitwake.c:184 do_futex+0x375/0x490 kernel/futex/syscalls.c:111 __do_sys_futex kernel/futex/syscalls.c:183 [inline] __se_sys_futex+0x3d7/0x460 kernel/futex/syscalls.c:164 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fe06157cef9 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:00007fe06229e0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fe061736060 RCX: 00007fe06157cef9 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fe061736064 RBP: 00007fe061736058 R08: 0000000000000010 R09: 0000000000000000 R10: 000000000000000c R11: 0000000000000246 R12: 00007fe061736064 R13: 0000000000000000 R14: 00007ffe47bd9a50 R15: 00007ffe47bd9b38