rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...0: (1 GPs behind) idle=c97/1/0x4000000000000000 softirq=106988/106990 fqs=5247 (detected by 1, t=10502 jiffies, g=173417, q=134) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 11937 Comm: syz-executor.3 Not tainted 5.15.142-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:check_preemption_disabled+0x37/0x110 Code: 8b 04 25 28 00 00 00 48 89 44 24 08 65 8b 1d b8 19 e6 75 65 8b 05 21 74 e6 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:ffffc90000007c40 EFLAGS: 00000002 RAX: 75e9c069fa395500 RBX: 0000000000000000 RCX: ffff8880211b8000 RDX: ffff8880211b8000 RSI: ffffffff8a8b2000 RDI: ffffffff8ad87dc0 RBP: 0000000000000001 R08: ffffffff886ad5ab R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: 0000000000000046 R13: ffff8880211b8000 R14: 00000000ffffffff R15: ffff8880a0d8db00 FS: 00007fb38a4fe6c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5b4417f038 CR3: 00000000a88a4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lockdep_recursion_finish kernel/locking/lockdep.c:436 [inline] lock_is_held_type+0xfd/0x180 kernel/locking/lockdep.c:5667 lock_is_held include/linux/lockdep.h:287 [inline] advance_sched+0x13d/0x940 net/sched/sch_taprio.c:721 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline] __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 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 12 77 a4 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 57 cc 31 f7 65 8b 05 f8 06 dd 75 85 c0 74 3f 48 c7 04 24 0e 36 RSP: 0018:ffffc90004907b60 EFLAGS: 00000206 RAX: 75e9c069fa395500 RBX: 1ffff92000920f70 RCX: ffffffff8162ec48 RDX: dffffc0000000000 RSI: ffffffff8a8b0d60 RDI: 0000000000000001 RBP: ffffc90004907bf0 R08: dffffc0000000000 R09: fffffbfff1f79e19 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff92000920f6c R14: ffffc90004907b80 R15: 0000000000000246 clock_was_set+0x67d/0x880 kernel/time/hrtimer.c:970 do_settimeofday64+0x673/0x7e0 kernel/time/timekeeping.c:1328 __do_sys_clock_settime kernel/time/posix-timers.c:1119 [inline] __se_sys_clock_settime kernel/time/posix-timers.c:1107 [inline] __x64_sys_clock_settime+0x232/0x270 kernel/time/posix-timers.c:1107 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fb38bf7cba9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb38a4fe0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 RAX: ffffffffffffffda RBX: 00007fb38c09bf80 RCX: 00007fb38bf7cba9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000000 RBP: 00007fb38bfc847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fb38c09bf80 R15: 00007ffe4cef2f18