rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2651 jiffies s: 36789 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 21352 Comm: syz-executor.2 Not tainted 6.6.0-rc4-next-20231003-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:lookup_chain_cache kernel/locking/lockdep.c:3762 [inline] RIP: 0010:lookup_chain_cache_add kernel/locking/lockdep.c:3781 [inline] RIP: 0010:validate_chain kernel/locking/lockdep.c:3836 [inline] RIP: 0010:__lock_acquire+0x18bb/0x5de0 kernel/locking/lockdep.c:5136 Code: e5 e0 7d 8f 91 48 8d 43 f8 48 85 db 48 0f 45 d8 eb 04 48 83 eb 08 48 85 db 74 40 48 8d 7b 18 48 89 f8 48 c1 e8 03 80 3c 28 00 <0f> 85 fa 2b 00 00 48 8b 43 18 49 39 c6 0f 84 a6 f4 ff ff 48 8d 7b RSP: 0018:ffffc900001f0ac8 EFLAGS: 00000046 RAX: 1ffffffff211a94b RBX: ffffffff908d4a40 RCX: ffffffff8168782f RDX: 1ffffffff233aa83 RSI: 0000000000000008 RDI: ffffffff908d4a58 RBP: dffffc0000000000 R08: 0000000000000000 R09: fffffbfff2341fd0 R10: ffffffff91a0fe87 R11: 0000000000000000 R12: 000000000001bac7 R13: ffff88802087c668 R14: e9c29562daa19235 R15: 0000000000000002 FS: 00007f4042ca56c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4042ca5d58 CR3: 000000005fcfb000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire kernel/locking/lockdep.c:5753 [inline] lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5718 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162 debug_object_deactivate lib/debugobjects.c:783 [inline] debug_object_deactivate+0x113/0x320 lib/debugobjects.c:771 debug_hrtimer_deactivate kernel/time/hrtimer.c:427 [inline] debug_deactivate kernel/time/hrtimer.c:483 [inline] __run_hrtimer kernel/time/hrtimer.c:1656 [inline] __hrtimer_run_queues+0x470/0xc10 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline] __sysvec_apic_timer_interrupt+0x105/0x3f0 arch/x86/kernel/apic/apic.c:1080 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1074 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x70 kernel/locking/spinlock.c:194 Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 96 f7 1e f7 48 89 df e8 8e 76 1f f7 f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 35 c6 10 f7 65 8b 05 a6 f1 b9 75 85 c0 74 12 5b RSP: 0018:ffffc90015b37b60 EFLAGS: 00000246 RAX: 0000000000000006 RBX: ffffffff8cbd76c0 RCX: 1ffffffff1d9dc41 RDX: 0000000000000000 RSI: ffffffff8a8caa20 RDI: ffffffff8ae97a20 RBP: 0000000000000287 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8ecf1497 R11: 0000000000000000 R12: 0000000008000000 R13: 1ffff92002b66f73 R14: ffffc90015b37cb8 R15: 003b9aca00000000 timekeeping_inject_offset+0x4c7/0x640 kernel/time/timekeeping.c:1392 do_adjtimex+0x373/0xaa0 kernel/time/timekeeping.c:2444 do_clock_adjtime kernel/time/posix-timers.c:1159 [inline] __do_sys_clock_adjtime+0x173/0x280 kernel/time/posix-timers.c:1171 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4041e7cae9 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:00007f4042ca50c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131 RAX: ffffffffffffffda RBX: 00007f4041f9c050 RCX: 00007f4041e7cae9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f4041ec847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f4041f9c050 R15: 00007fff69b8f068