rcu: INFO: rcu_sched detected stalls on CPUs/tasks: rcu: 1-...0: (1 GPs behind) idle=356/1/0x4000000000000002 softirq=5021/5035 fqs=5000 rcu: (detected by 0, t=10002 jiffies, g=1309, q=2166) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3842 Comm: syz-executor.0 Not tainted 5.1.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__lock_acquire.isra.15+0x1b3/0x730 kernel/locking/lockdep.c:3613 Code: 27 02 00 00 48 85 ff 0f 85 31 02 00 00 89 c1 31 d2 45 31 c0 e9 87 00 00 00 48 8d 5c 07 d8 44 0f b7 5b 20 41 81 e3 ff 1f 00 00 <41> 39 f3 0f 85 f3 fe ff ff 4d 85 e4 0f 84 ea fe ff ff 0f b7 43 22 RSP: 0018:ffff888237b03de8 EFLAGS: 00000002 RAX: 0000000000000028 RBX: ffff88822d3435c8 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff88822d3435c8 RBP: ffff888237b03e28 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000054 R12: 0000000000000000 R13: 0000000000000000 R14: ffff88822d342d80 R15: ffffffff8352ba20 FS: 00007f353efc76c0(0000) GS:ffff888237b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f353f575988 CR3: 000000022b86c000 CR4: 0000000000340ee0 Call Trace: lock_acquire+0x9b/0x120 kernel/locking/lockdep.c:4211 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x29/0x40 kernel/locking/spinlock.c:152 debug_object_deactivate lib/debugobjects.c:540 [inline] debug_object_deactivate+0x4a/0xf0 lib/debugobjects.c:529 debug_hrtimer_deactivate kernel/time/hrtimer.c:412 [inline] debug_deactivate kernel/time/hrtimer.c:462 [inline] __run_hrtimer kernel/time/hrtimer.c:1359 [inline] __hrtimer_run_queues+0xaf/0x2f0 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0xf1/0x200 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0x79/0x170 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:_raw_spin_unlock_irqrestore+0x2a/0x30 kernel/locking/spinlock.c:185 Code: 55 48 89 e5 41 54 49 89 f4 be 01 00 00 00 48 8b 55 08 53 48 89 fb 48 8d 7f 18 e8 d1 2a 32 ff 48 89 df e8 99 67 32 ff 41 54 9d <5b> 41 5c 5d c3 90 55 be 01 00 00 00 48 89 e5 53 48 89 fb 48 8b 55 RSP: 0018:ffffc90000fbbd98 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000001 RBX: ffffffff8287c1a0 RCX: ffffc90000fbbd54 RDX: 0000000000000000 RSI: ffffffff8287c1b8 RDI: ffffffff8287c1a0 RBP: ffffc90000fbbda8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000206 R13: 0000000000000000 R14: 0000000000000206 R15: ffffc90000fbbdc0 do_adjtimex+0x1af/0x2c0 kernel/time/timekeeping.c:2342 posix_clock_realtime_adj+0xc/0x10 kernel/time/posix-timers.c:184 do_clock_adjtime+0x3b/0x70 kernel/time/posix-timers.c:1059 __do_sys_clock_adjtime kernel/time/posix-timers.c:1071 [inline] __se_sys_clock_adjtime+0x47/0xa0 kernel/time/posix-timers.c:1062 __x64_sys_clock_adjtime+0x11/0x20 kernel/time/posix-timers.c:1062 do_syscall_64+0x55/0x140 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f353f445ca9 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:00007f353efc70c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131 RAX: ffffffffffffffda RBX: 00007f353f573f80 RCX: 00007f353f445ca9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f353f49147e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f353f573f80 R15: 00007ffc9c910348