rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2686 jiffies s: 565 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: 0 Comm: swapper/0 Not tainted 6.1.60-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:hlock_class kernel/locking/lockdep.c:228 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4723 [inline] RIP: 0010:__lock_acquire+0x552/0x1f80 kernel/locking/lockdep.c:4998 Code: 41 8b 1e 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 20 c2 48 90 be 08 00 00 00 e8 d6 64 77 00 48 0f a3 1d 6e 7d de 0e <73> 1f 48 8d 04 5b 48 c1 e0 06 48 8d 98 20 21 18 90 48 ba 00 00 00 RSP: 0018:ffffc90000007a80 EFLAGS: 00000057 RAX: 0000000000000001 RBX: 000000000000002b RCX: ffffffff816a44aa RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff9048c220 RBP: 0000000000000002 R08: dffffc0000000000 R09: fffffbfff2091845 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8cebe2d8 R13: ffffffff8cebd800 R14: ffffffff8cebe300 R15: 1ffffffff19d7c60 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000600 CR3: 0000000079d32000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661 rcu_lock_acquire include/linux/rcupdate.h:306 [inline] rcu_read_lock include/linux/rcupdate.h:747 [inline] advance_sched+0x6ec/0x970 net/sched/sch_taprio.c:753 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline] __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:113 [inline] RIP: 0010:acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:572 Code: 8b f7 f6 48 83 e3 08 0f 85 0b 01 00 00 4c 8d 74 24 20 e8 e4 49 fe f6 0f 1f 44 00 00 e8 0a 87 f7 f6 0f 00 2d 53 fd b3 00 fb f4 <4c> 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7 e8 eb b0 4e f7 RSP: 0018:ffffffff8ce07b20 EFLAGS: 000002d3 RAX: ffffffff8a92f766 RBX: 0000000000000000 RCX: ffffffff8cebd800 RDX: 0000000000000000 RSI: ffffffff8aebe2a0 RDI: ffffffff8b3cef00 RBP: ffffffff8ce07bb0 R08: ffffffff8a92f748 R09: fffffbfff19d7b01 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff19c0f64 R13: ffff888017bea804 R14: ffffffff8ce07b40 R15: dffffc0000000000 acpi_idle_enter+0x352/0x4f0 drivers/acpi/processor_idle.c:709 cpuidle_enter_state+0x516/0xf80 drivers/cpuidle/cpuidle.c:239 cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:356 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x3ce/0x680 kernel/sched/idle.c:303 cpu_startup_entry+0x3d/0x60 kernel/sched/idle.c:401 rest_init+0x2da/0x300 init/main.c:727 arch_call_rest_init+0xa/0xa init/main.c:887 start_kernel+0x496/0x53f init/main.c:1134 secondary_startup_64_no_verify+0xcf/0xdb INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.615 msecs