rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2663 jiffies s: 2849 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: 3865 Comm: syz.3.49 Not tainted 6.1.103-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:lockdep_hardirqs_on_prepare+0x1e1/0x7a0 kernel/locking/lockdep.c:4312 Code: 48 8b 44 24 10 4c 8b b0 d0 0a 00 00 48 8d b8 b8 0a 00 00 48 89 f8 48 c1 e8 03 80 3c 10 00 74 05 e8 04 e2 77 00 48 8b 5c 24 10 <4c> 89 b3 b8 0a 00 00 48 c7 c7 40 0f 0c 8b e8 6c f9 3a 09 65 ff 05 RSP: 0018:ffffc90000007820 EFLAGS: 00000046 RAX: 1ffff1100ee0b8c7 RBX: ffff88807705bb80 RCX: ffffffff91f31103 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff88807705c638 RBP: ffffc900000078e0 R08: ffffffff81b644fc R09: ffffed1017306ad6 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000000 R14: a3555ea324ffd553 R15: 1ffff92000000f08 FS: 00007feea66026c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000005a658000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: trace_hardirqs_on+0x34/0x40 kernel/trace/trace_preemptirq.c:49 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:679 RIP: 0010:rcu_read_unlock_special+0x84/0x540 kernel/rcu/tree_plugin.h:682 Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 0d 48 8e 7e 41 f7 c4 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a RSP: 0018:ffffc900000079a0 EFLAGS: 00000206 RAX: 33ed175e092b4a00 RBX: 1ffff92000000f3c RCX: ffffffff816adfda RDX: dffffc0000000000 RSI: ffffffff8b0c0260 RDI: ffffffff8b5d5de0 RBP: ffffc90000007a78 R08: dffffc0000000000 R09: fffffbfff20e7262 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8d32fe00 R13: ffff88807705bfd8 R14: ffffc900000079e0 R15: 1ffff92000000f38 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:426 rcu_read_unlock include/linux/rcupdate.h:823 [inline] hsr_announce+0x2d6/0x340 net/hsr/hsr_device.c:384 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: 31 0b 00 48 83 c4 08 4c 89 f7 e8 68 31 00 00 0f 1f 44 00 00 4c 89 f7 e8 2b 3c 50 09 e8 76 23 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:ffffc90004a67788 EFLAGS: 00000282 RAX: 33ed175e092b4a00 RBX: ffff88807bf65974 RCX: ffffffff91f31103 RDX: dffffc0000000000 RSI: ffffffff8b0c0260 RDI: ffff88807705d178 RBP: ffffc90004a677d0 R08: ffffffff81b644fc R09: ffffed1017306ad6 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807705bb80 R13: 1ffff110173076e3 R14: ffff8880b983a9c0 R15: ffff8880b983b718 context_switch kernel/sched/core.c:5244 [inline] __schedule+0x1447/0x4570 kernel/sched/core.c:6558 preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:6727 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6751 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: 0033:0x7feea57779f9 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:00007feea66020f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007feea5905f88 RCX: 00007feea57779f9 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007feea5905f8c RBP: 00007feea5905f80 R08: 0000000000000010 R09: 00007feea66026c0 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007feea5905f8c R13: 000000000000000b R14: 00007ffe56cd4410 R15: 00007ffe56cd44f8