rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...0: (1 GPs behind) idle=b17c/1/0x4000000000000000 softirq=15518/15519 fqs=5246
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:        0          0            0
rcu: 	cputime:        0          0            0   ==> 52500(ms)
rcu: 	(detected by 1, t=10502 jiffies, g=11145, q=3914 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6646 Comm: syz.1.169 Not tainted 6.13.0-rc2-syzkaller-00391-g2c2b61d2138f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4876 [inline]
RIP: 0010:__lock_acquire+0x945/0x2100 kernel/locking/lockdep.c:5176
Code: c7 00 96 0a 8c 48 c7 c6 00 99 0a 8c e8 24 5f e5 ff 48 ba 00 00 00 00 00 fc ff df 90 0f 0b 90 90 90 31 db 48 8d ab c4 00 00 00 <48> 89 e8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 91 00 00 00 0f b6 6d
RSP: 0018:ffffc90000007930 EFLAGS: 00000006
RAX: 0000000000005460 RBX: ffffffff93c31ba0 RCX: ffffffff817aa802
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff942b4888
RBP: ffffffff93c31c64 R08: ffffffff942b488f R09: 1ffffffff2856911
R10: dffffc0000000000 R11: fffffbfff2856912 R12: 0000000000000004
R13: ffff888031c20ba0 R14: 0000000000000004 R15: ffff888031c20ba0
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2829c31440 CR3: 000000000e736000 CR4: 00000000003526f0
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:5849
 __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:873
 debug_hrtimer_deactivate kernel/time/hrtimer.c:433 [inline]
 debug_deactivate+0x1b/0x220 kernel/time/hrtimer.c:475
 __run_hrtimer kernel/time/hrtimer.c:1707 [inline]
 __hrtimer_run_queues+0x305/0xd30 kernel/time/hrtimer.c:1803
 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
 </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:5853
Code: 2b 00 74 08 4c 89 f7 e8 aa 24 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:ffffc90002f17100 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920005e2e2c RCX: ffff888031c20ad8
RDX: dffffc0000000000 RSI: ffffffff8c0aa960 RDI: ffffffff8c5f9780
RBP: ffffc90002f17250 R08: ffffffff942b4887 R09: 1ffffffff2856910
R10: dffffc0000000000 R11: fffffbfff2856911 R12: 1ffff920005e2e28
R13: dffffc0000000000 R14: ffffc90002f17160 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 rcu_read_lock_sched include/linux/rcupdate.h:941 [inline]
 pfn_valid+0x113/0x450 include/linux/mmzone.h:2048
 page_table_check_clear+0x1e/0x550 mm/page_table_check.c:70
 get_and_clear_full_ptes include/linux/pgtable.h:705 [inline]
 zap_present_folio_ptes mm/memory.c:1502 [inline]
 zap_present_ptes mm/memory.c:1585 [inline]
 zap_pte_range mm/memory.c:1627 [inline]
 zap_pmd_range mm/memory.c:1753 [inline]
 zap_pud_range mm/memory.c:1782 [inline]
 zap_p4d_range mm/memory.c:1803 [inline]
 unmap_page_range+0x2c2e/0x4040 mm/memory.c:1824
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1914
 exit_mmap+0x275/0xc20 mm/mmap.c:1668
 __mmput+0x115/0x3c0 kernel/fork.c:1353
 exit_mm+0x220/0x310 kernel/exit.c:570
 do_exit+0x9b2/0x28e0 kernel/exit.c:925
 do_group_exit+0x207/0x2c0 kernel/exit.c:1087
 get_signal+0x16b2/0x1750 kernel/signal.c:3017
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc06ed85d19
Code: Unable to access opcode bytes at 0x7fc06ed85cef.
RSP: 002b:00007ffecd8cc498 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fc06ef77ba0 RCX: 00007fc06ed85d19
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fc06ef77ba0 R08: 000000000000021c R09: 00007ffecd8cc78f
R10: 00007fc06ef77ac0 R11: 0000000000000246 R12: 0000000000015194
R13: 00007ffecd8cc5a0 R14: 0000000000000032 R15: ffffffffffffffff
 </TASK>