rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2676 jiffies s: 617 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: 5078 Comm: dhcpcd Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__lock_release kernel/locking/lockdep.c:5438 [inline]
RIP: 0010:lock_release+0x267/0x9d0 kernel/locking/lockdep.c:5774
Code: 3c ee 4c 89 ff 48 8b 74 24 20 e8 a4 d8 f9 09 89 5c 24 44 89 da 85 c0 0f 84 05 02 00 00 4d 85 ff 0f 84 19 03 00 00 49 8d 5f 24 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0018:ffffc90000a08a20 EFLAGS: 00000086
RAX: 0000000000000001 RBX: ffff888071e3654c RCX: ffffc90000a08a03
RDX: 0000000000000002 RSI: ffffffff9468a518 RDI: ffff888071e36528
RBP: ffffc90000a08b50 R08: ffffffff8f860def R09: 1ffffffff1f0c1bd
R10: dffffc0000000000 R11: fffffbfff1f0c1be R12: 0000000000000002
R13: 000000000000000a R14: ffff888071e364d8 R15: ffff888071e36528
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005629c8dfe680 CR3: 000000000df32000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
 _raw_spin_unlock_irqrestore+0x79/0x140 kernel/locking/spinlock.c:194
 debug_object_activate+0x3e4/0x510 lib/debugobjects.c:726
 debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline]
 debug_activate kernel/time/hrtimer.c:478 [inline]
 enqueue_hrtimer+0x30/0x3a0 kernel/time/hrtimer.c:1090
 __run_hrtimer kernel/time/hrtimer.c:1709 [inline]
 __hrtimer_run_queues+0x6b5/0xd00 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x107/0x3a0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 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:__read_once_word_nocheck+0x1/0x20 include/asm-generic/rwonce.h:66
Code: df e8 d3 2e b4 00 e9 72 fc ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 53 <48> 89 fb e8 47 2d 54 00 48 8b 03 5b c3 cc cc cc cc 66 2e 0f 1f 84
RSP: 0018:ffffc90003eef4d8 EFLAGS: 00000293
RAX: ffffffff8140bd95 RBX: ffffc90003eef620 RCX: ffff888071e35a00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffc90003eef9d0
RBP: ffffc90003eef9d0 R08: ffffffff8140bd6b R09: ffffffff8140a8df
R10: 0000000000000003 R11: ffff888071e35a00 R12: 1ffff920007ddec5
R13: 1ffff920007ddec6 R14: 1ffff920007ddec4 R15: ffffc90003ef0000
 deref_stack_reg+0x1c7/0x260 arch/x86/kernel/unwind_orc.c:406
 unwind_next_frame+0x1ab8/0x2a00 arch/x86/kernel/unwind_orc.c:648
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
 poison_slab_object+0xa6/0xe0 mm/kasan/common.c:240
 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2106 [inline]
 slab_free mm/slub.c:4280 [inline]
 kmem_cache_free+0x102/0x2b0 mm/slub.c:4344
 remove_vma mm/mmap.c:146 [inline]
 exit_mmap+0x6a9/0xd40 mm/mmap.c:3311
 __mmput+0x115/0x3c0 kernel/fork.c:1345
 exit_mm+0x220/0x310 kernel/exit.c:569
 do_exit+0x99e/0x27e0 kernel/exit.c:865
 do_group_exit+0x207/0x2c0 kernel/exit.c:1027
 __do_sys_exit_group kernel/exit.c:1038 [inline]
 __se_sys_exit_group kernel/exit.c:1036 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f199fb3ea90
Code: Unable to access opcode bytes at 0x7f199fb3ea66.
RSP: 002b:00007fff89fec828 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f199fa8e6c0 RCX: 00007f199fb3ea90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007fff89fec8a8 R08: 0000000000000007 R09: 2b1d4db6d3014152
R10: 0000000000000120 R11: 0000000000000202 R12: 0000000000000001
R13: 00007fff89fece78 R14: 0000000000000003 R15: 0000000000000000
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.855 msecs