rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 4225 jiffies s: 3053 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 UID: 0 PID: 5523 Comm: dhcpcd-run-hook Not tainted 6.10.0-next-20240717-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4839 [inline]
RIP: 0010:__lock_acquire+0x745/0x2050 kernel/locking/lockdep.c:5149
Code: 41 8b 6d 00 41 89 ec ff cd 0f 88 a2 00 00 00 89 eb 83 fd 31 73 79 48 8d 04 9b 48 8d 5c c6 20 48 89 d8 48 c1 e8 03 0f b6 04 10 <84> c0 75 18 8b 1b 41 0f b6 04 16 84 c0 75 31 41 33 1f f7 c3 00 60
RSP: 0018:ffffc90000a17d10 EFLAGS: 00000806
RAX: 0000000000000000 RBX: ffff88802acb6578 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: ffff88802acb64e0 RDI: 0000000000000014
RBP: 0000000000000003 R08: ffffffff9300f807 R09: 1ffffffff2601f00
R10: dffffc0000000000 R11: fffffbfff2601f01 R12: 0000000000000004
R13: ffff88802acb64d8 R14: 1ffff11005596cb4 R15: ffff88802acb65a0
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff4c9b40a8 CR3: 000000007c00a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
 debug_object_deactivate+0x158/0x390 lib/debugobjects.c:764
 debug_hrtimer_deactivate kernel/time/hrtimer.c:428 [inline]
 debug_deactivate+0x1b/0x220 kernel/time/hrtimer.c:484
 __run_hrtimer kernel/time/hrtimer.c:1657 [inline]
 __hrtimer_run_queues+0x305/0xd50 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0x9f7/0xf50 kernel/printk/printk.c:3103
Code: 20 00 90 0f 0b 90 e9 f3 f9 ff ff e8 83 29 20 00 e8 6e d6 20 0a 4d 85 f6 74 c0 e8 74 29 20 00 fb 49 bd 00 00 00 00 00 fc ff df <43> 80 3c 2f 00 48 8b 5c 24 30 74 08 48 89 df e8 d5 ad 87 00 4c 8b
RSP: 0018:ffffc90000a18480 EFLAGS: 00000246
RAX: ffffffff8173af3c RBX: 0000000000000000 RCX: ffff88802acb5a00
RDX: 0000000000000102 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a18610 R08: ffffffff8173aee3 R09: 1ffffffff2601f14
R10: dffffc0000000000 R11: fffffbfff2601f15 R12: ffffffff8eb31040
R13: dffffc0000000000 R14: 0000000000000200 R15: 1ffffffff1d66213
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3173
 vprintk_emit+0x7a1/0x900 kernel/printk/printk.c:2423
 _printk+0xd5/0x120 kernel/printk/printk.c:2450
 printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline]
 show_trace_log_lvl+0x43a/0x520 arch/x86/kernel/dumpstack.c:285
 sched_show_task+0x506/0x6d0 kernel/sched/core.c:7512
 report_rtnl_holders+0x320/0x3f0 net/core/rtnetlink.c:110
 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792
 expire_timers kernel/time/timer.c:1843 [inline]
 __run_timers kernel/time/timer.c:2417 [inline]
 __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428
 run_timer_base kernel/time/timer.c:2437 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447
 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 9e e5 5c f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> a3 69 c4 f5 65 8b 05 94 5f 65 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc90004797680 EFLAGS: 00000206
RAX: a787a3a473957200 RBX: 1ffff920008f2ed4 RCX: ffffffff8170233a
RDX: dffffc0000000000 RSI: ffffffff8bcad5c0 RDI: 0000000000000001
RBP: ffffc90004797710 R08: ffffffff9300f89f R09: 1ffffffff2601f13
R10: dffffc0000000000 R11: fffffbfff2601f14 R12: dffffc0000000000
R13: 1ffff920008f2ed0 R14: ffffc900047976a0 R15: 0000000000000246
 __debug_check_no_obj_freed lib/debugobjects.c:999 [inline]
 debug_check_no_obj_freed+0x561/0x580 lib/debugobjects.c:1020
 slab_free_hook mm/slub.c:2219 [inline]
 slab_free mm/slub.c:4473 [inline]
 kmem_cache_free+0x10f/0x350 mm/slub.c:4548
 anon_vma_chain_free mm/rmap.c:147 [inline]
 unlink_anon_vmas+0x297/0x5f0 mm/rmap.c:421
 free_pgtables+0x567/0x840 mm/memory.c:409
 exit_mmap+0x447/0xc80 mm/mmap.c:3423
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x27f0 kernel/exit.c:869
 do_group_exit+0x207/0x2c0 kernel/exit.c:1031
 __do_sys_exit_group kernel/exit.c:1042 [inline]
 __se_sys_exit_group kernel/exit.c:1040 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1040
 x64_sys_call+0x26c3/0x26d0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd27dd05a90
Code: Unable to access opcode bytes at 0x7fd27dd05a66.
RSP: 002b:00007fff4c9b3fb8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00005582f0032e04 RCX: 00007fd27dd05a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000000
RBP: 0000000000000003 R08: 00007fff4c9b40b0 R09: 0000000000000002
R10: 0000000000000010 R11: 0000000000000202 R12: 00007fff4c9b42d8
R13: 00007fff4c9b42f0 R14: 00005582de1ce169 R15: 00007fd27df03a80
 </TASK>