rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...0: (1 GPs behind) idle=8a1/1/0x4000000000000000 softirq=19718/19722 fqs=2099 (detected by 1, t=10502 jiffies, g=25013, q=923) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7212 Comm: syz.3.869 Not tainted 5.15.180-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:check_wait_context kernel/locking/lockdep.c:4711 [inline] RIP: 0010:__lock_acquire+0x7fc/0x1ff0 kernel/locking/lockdep.c:4962 Code: 48 8b 44 24 60 0f b6 04 10 84 c0 0f 85 39 01 00 00 83 3d e6 8b 46 15 00 74 67 31 db 48 81 c3 b8 00 00 00 48 89 d8 48 c1 e8 03 <0f> b6 04 10 84 c0 0f 85 c4 00 00 00 8b 03 41 38 c7 41 0f b6 cf 41 RSP: 0018:ffffc90000007a00 EFLAGS: 00000802 RAX: 1ffffffff20630bf RBX: ffffffff903185f8 RCX: ffffffff8162a353 RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff9098c0c8 RBP: ffff888021608b38 R08: dffffc0000000000 R09: fffffbfff213181a R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: ffff888021608b38 R14: 0000000000000001 R15: ffff888021608b02 FS: 00007f53072c66c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055557fa2a808 CR3: 000000007be8f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __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:749 debug_hrtimer_deactivate kernel/time/hrtimer.c:415 [inline] debug_deactivate+0x1b/0x1e0 kernel/time/hrtimer.c:471 __run_hrtimer kernel/time/hrtimer.c:1658 [inline] __hrtimer_run_queues+0x31d/0xcf0 kernel/time/hrtimer.c:1754 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1816 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+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 62 64 81 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 57 84 0e f7 65 8b 05 38 a1 b9 75 85 c0 74 3f 48 c7 04 24 0e 36 RSP: 0018:ffffc90002e8fb60 EFLAGS: 00000206 RAX: b8f068a4c8647500 RBX: 1ffff920005d1f70 RCX: ffffffff81630638 RDX: dffffc0000000000 RSI: ffffffff8aab18e0 RDI: 0000000000000001 RBP: ffffc90002e8fbf0 R08: dffffc0000000000 R09: fffffbfff2131819 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff920005d1f6c R14: ffffc90002e8fb80 R15: 0000000000000246 clock_was_set+0x67d/0x880 kernel/time/hrtimer.c:960 do_settimeofday64+0x673/0x7e0 kernel/time/timekeeping.c:1328 __do_sys_clock_settime kernel/time/posix-timers.c:1124 [inline] __se_sys_clock_settime kernel/time/posix-timers.c:1112 [inline] __x64_sys_clock_settime+0x232/0x270 kernel/time/posix-timers.c:1112 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f530945e969 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:00007f53072c6038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 RAX: ffffffffffffffda RBX: 00007f5309685fa0 RCX: 00007f530945e969 RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000000000000000 RBP: 00007f53094e0ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5309685fa0 R15: 00007fffcb7d6a68