rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2660 jiffies s: 2385 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: 5608 Comm: dhcpcd-run-hook Not tainted 6.11.0-rc5-syzkaller-00151-gfe1910f9337b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:debug_spin_unlock kernel/locking/spinlock_debug.c:106 [inline]
RIP: 0010:do_raw_spin_unlock+0xf6/0x8b0 kernel/locking/spinlock_debug.c:141
Code: 7e 39 c8 0f 85 cb 02 00 00 48 bd 00 00 00 00 00 fc ff df 41 80 3c 2c 00 74 08 4c 89 ef e8 92 a1 89 00 49 c7 45 00 ff ff ff ff <0f> b6 04 2b 84 c0 0f 85 cf 03 00 00 41 c7 06 ff ff ff ff 48 c7 c0
RSP: 0018:ffffc90000a18b00 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffffffff34ab538 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff9a55a9b8
RBP: dffffc0000000000 R08: ffffffff9a55a9bb R09: 1ffffffff34ab537
R10: dffffc0000000000 R11: fffffbfff34ab538 R12: 1ffffffff34ab539
R13: ffffffff9a55a9c8 R14: ffffffff9a55a9c0 R15: ffffffff9a55a9b8
FS:  0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe67659358 CR3: 0000000032070000 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:150 [inline]
 _raw_spin_unlock_irqrestore+0x81/0x140 kernel/locking/spinlock.c:194
 debug_object_activate+0x3e4/0x510 lib/debugobjects.c:727
 debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline]
 debug_activate kernel/time/hrtimer.c:478 [inline]
 enqueue_hrtimer+0x30/0x3c0 kernel/time/hrtimer.c:1085
 __run_hrtimer kernel/time/hrtimer.c:1706 [inline]
 __hrtimer_run_queues+0x6cb/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+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:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5763
Code: 2b 00 74 08 4c 89 f7 e8 2a 09 8b 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900043373c0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000866e84 RCX: 877cf67e46a6d500
RDX: dffffc0000000000 RSI: ffffffff8c0ae6e0 RDI: ffffffff8c608d40
RBP: ffffc90004337518 R08: ffffffff941e3847 R09: 1ffffffff283c708
R10: dffffc0000000000 R11: fffffbfff283c709 R12: 1ffff92000866e80
R13: dffffc0000000000 R14: ffffc90004337420 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
 rcu_read_lock include/linux/rcupdate.h:838 [inline]
 page_ext_get+0x3d/0x2a0 mm/page_ext.c:525
 page_table_check_clear+0x4b/0x550 mm/page_table_check.c:74
 get_and_clear_full_ptes include/linux/pgtable.h:678 [inline]
 zap_present_folio_ptes mm/memory.c:1493 [inline]
 zap_present_ptes mm/memory.c:1576 [inline]
 zap_pte_range mm/memory.c:1618 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x2b48/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x264/0xc80 mm/mmap.c:3412
 __mmput+0x115/0x390 kernel/fork.c:1345
 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+0x2634/0x2640 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: 0033:0x7f77c87a2a90
Code: Unable to access opcode bytes at 0x7f77c87a2a66.
RSP: 002b:00007ffe67659268 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000055e853cdde04 RCX: 00007f77c87a2a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000000
RBP: 0000000000000003 R08: 00007ffe67659360 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe67659588
R13: 00007ffe676595a0 R14: 000055e825d73169 R15: 00007f77c89a0a80
 </TASK>