rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2660 jiffies s: 713 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 6.1.83-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:check_preemption_disabled+0x37/0x110 Code: 8b 04 25 28 00 00 00 48 89 44 24 08 65 8b 1d 60 19 78 75 65 8b 05 01 6f 78 75 a9 ff ff ff 7f 74 22 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 0f 85 c7 00 00 00 89 d8 48 83 c4 10 5b 41 5c 41 5e RSP: 0018:ffffc90000007b48 EFLAGS: 00000002 RAX: cbb94c02443db900 RBX: 0000000000000000 RCX: ffffc90000007c03 RDX: 0000000000000000 RSI: ffffffff8aebffc0 RDI: ffffffff8b3d2b40 RBP: ffffc90000007cb0 R08: dffffc0000000000 R09: fffffbfff1ce6c9e R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000f7c R13: 0000000000000046 R14: ffffc90000007c10 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fed8581b138 CR3: 000000000ce8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline] lock_release+0x5cb/0xa20 kernel/locking/lockdep.c:5684 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline] _raw_spin_unlock_irqrestore+0x75/0x130 kernel/locking/spinlock.c:194 __run_hrtimer kernel/time/hrtimer.c:1682 [inline] __hrtimer_run_queues+0x4b0/0xe50 kernel/time/hrtimer.c:1750 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812 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:653 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: 67 f6 f6 48 83 e3 08 0f 85 0b 01 00 00 4c 8d 74 24 20 e8 f4 23 fd f6 0f 1f 44 00 00 e8 9a 63 f6 f6 0f 00 2d a3 23 b3 00 fb f4 <4c> 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7 e8 6b d9 4d f7 RSP: 0018:ffffffff8ce07b20 EFLAGS: 000002d3 RAX: ffffffff8a942156 RBX: 0000000000000000 RCX: ffffffff8cebd800 RDX: 0000000000000000 RSI: ffffffff8aebee40 RDI: ffffffff8b3d2b40 RBP: ffffffff8ce07bb0 R08: ffffffff8a942138 R09: fffffbfff19d7b01 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff19c0f64 R13: ffff88801356f004 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:732 arch_call_rest_init+0xa/0xa init/main.c:892 start_kernel+0x496/0x53f init/main.c:1139 secondary_startup_64_no_verify+0xcf/0xdb INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.617 msecs rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...!: (1 GPs behind) idle=41ec/0/0x1 softirq=6779/6779 fqs=0 (detected by 1, t=10503 jiffies, g=6417, q=392 ncpus=2) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.83-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:122 [inline] RIP: 0010:lock_acquire+0x151/0x5a0 kernel/locking/lockdep.c:5638 Code: 65 8b 05 c2 26 98 7e 85 c0 0f 85 88 01 00 00 65 48 8b 1d 32 1d 98 7e 48 81 c3 dc 0a 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 28 <84> c0 0f 85 ea 02 00 00 83 3b 00 0f 85 5c 01 00 00 4c 8d bc 24 80 RSP: 0018:ffffc90000007ae0 EFLAGS: 00000803 RAX: 0000000000000000 RBX: ffffffff8cebe2dc RCX: ffffffff816a51bb RDX: 0000000000000000 RSI: ffffffff8b3d2b20 RDI: ffffffff8b3d2ae0 RBP: ffffc90000007c28 R08: dffffc0000000000 R09: fffffbfff1ce6c9e R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000f64 R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fed8581b138 CR3: 000000000ce8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162 debug_object_deactivate+0x63/0x380 lib/debugobjects.c:752 debug_hrtimer_deactivate kernel/time/hrtimer.c:425 [inline] debug_deactivate+0x1d/0x280 kernel/time/hrtimer.c:481 __run_hrtimer kernel/time/hrtimer.c:1654 [inline] __hrtimer_run_queues+0x334/0xe50 kernel/time/hrtimer.c:1750 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812 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