rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...0: (1 GPs behind) idle=f89/1/0x4000000000000000 softirq=10703/10711 fqs=2100 (detected by 1, t=10504 jiffies, g=13049, q=1955) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4801 Comm: syz-execprog Not tainted 5.15.173-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:do_raw_spin_lock+0x0/0x370 kernel/locking/spinlock_debug.c:113 Code: c1 03 38 c1 0f 8c 71 ff ff ff e8 8b 1a 66 00 e9 67 ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 7c 95 48 89 df e8 72 1a 66 00 eb 8b <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec a0 00 RSP: 0000:ffffc90002f87bf8 EFLAGS: 00000096 RAX: 620100b76f475500 RBX: 1ffff920005f0f84 RCX: ffffffff81637932 RDX: dffffc0000000000 RSI: ffffffff8a8b3d20 RDI: ffff8880b902a200 RBP: ffffc90002f87c90 R08: dffffc0000000000 R09: fffffbfff20ec822 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b902a200 R13: 1ffff920005f0f80 R14: ffffc90002f87c20 R15: dffffc0000000000 FS: 000000c00182b098(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff9e72fb110 CR3: 000000005ce40000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_lock_irq include/linux/spinlock_api_smp.h:129 [inline] _raw_spin_lock_irq+0xdb/0x110 kernel/locking/spinlock.c:170 __run_hrtimer kernel/time/hrtimer.c:1692 [inline] __hrtimer_run_queues+0x662/0xcf0 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline] __sysvec_apic_timer_interrupt+0x13b/0x4b0 arch/x86/kernel/apic/apic.c:1114 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline] sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0033:0x40708e Code: 48 83 ec 38 e8 13 00 00 00 48 83 c4 38 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 49 89 f2 48 89 fa 48 89 ce 48 89 df 0f 05 <48> 3d 01 f0 ff ff 76 15 48 f7 d8 48 89 c1 48 c7 c0 ff ff ff ff 48 RSP: 002b:000000c002bcf800 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 000000000040708e RDX: 0000000000000080 RSI: 000000c002bcf8a4 RDI: 0000000000000004 RBP: 000000c002bcf848 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000c002bcf8d8 R13: 000000000000000d R14: 000000c001d37500 R15: 0000000000000001