rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2635 jiffies s: 73085 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: 28931 Comm: syz-executor.1 Not tainted 6.7.0-rc6-syzkaller-00078-ga4aebe936554 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:do_raw_spin_unlock+0x5/0x8b0 kernel/locking/spinlock_debug.c:138
Code: 80 e1 07 80 c1 03 38 c1 0f 8c 2c ff ff ff e8 e2 f9 7b 00 e9 22 ff ff ff e8 b8 d6 a8 09 0f 1f 84 00 00 00 00 00 66 0f 1f 00 55 <41> 57 41 56 41 55 41 54 53 48 83 ec 28 49 89 ff 48 bb 00 00 00 00
RSP: 0018:ffffc900001f0b90 EFLAGS: 00000046
RAX: ac87b2a2cc145f00 RBX: ffffffff92831098 RCX: ffffc900001f0a03
RDX: 0000000000000009 RSI: ffffffff8b6ab6e0 RDI: ffffffff92831098
RBP: ffffc900001f0c30 R08: ffffffff8f00bc2f R09: 1ffffffff1e01785
R10: dffffc0000000000 R11: fffffbfff1e01786 R12: dffffc0000000000
R13: 1ffff9200003e174 R14: ffffc900001f0bc0 R15: 0000000000000046
FS:  0000555556bca480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcea00c56be CR3: 0000000079ac2000 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_deactivate+0x2fe/0x3c0 lib/debugobjects.c:805
 debug_hrtimer_deactivate kernel/time/hrtimer.c:427 [inline]
 debug_deactivate+0x1b/0x1f0 kernel/time/hrtimer.c:483
 __run_hrtimer kernel/time/hrtimer.c:1656 [inline]
 __hrtimer_run_queues+0x321/0xd20 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
 __sysvec_apic_timer_interrupt+0x104/0x3a0 arch/x86/kernel/apic/apic.c:1082
 sysvec_apic_timer_interrupt+0x92/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x25a/0x530 kernel/locking/lockdep.c:5758
Code: 2b 00 74 08 4c 89 f7 e8 54 58 7d 00 f6 44 24 61 02 0f 85 8a 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:ffffc9000343f120 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000687e30 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8b6ab6e0 RDI: ffffffff8bbde020
RBP: ffffc9000343f270 R08: ffffffff90dd7367 R09: 1ffffffff21bae6c
R10: dffffc0000000000 R11: fffffbfff21bae6d R12: 1ffff92000687e2c
R13: dffffc0000000000 R14: ffffc9000343f180 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
 rcu_read_lock include/linux/rcupdate.h:747 [inline]
 page_ext_get+0x3d/0x2a0 mm/page_ext.c:508
 page_table_check_set+0x1fd/0x860 mm/page_table_check.c:109
 __page_table_check_ptes_set+0x220/0x280 mm/page_table_check.c:196
 page_table_check_ptes_set include/linux/page_table_check.h:74 [inline]
 set_ptes include/linux/pgtable.h:234 [inline]
 copy_present_pte mm/memory.c:987 [inline]
 copy_pte_range mm/memory.c:1091 [inline]
 copy_pmd_range mm/memory.c:1176 [inline]
 copy_pud_range mm/memory.c:1213 [inline]
 copy_p4d_range mm/memory.c:1237 [inline]
 copy_page_range+0x2ca4/0x43e0 mm/memory.c:1335
 dup_mmap kernel/fork.c:758 [inline]
 dup_mm kernel/fork.c:1691 [inline]
 copy_mm+0x11fc/0x1f10 kernel/fork.c:1740
 copy_process+0x1d6f/0x3fb0 kernel/fork.c:2502
 kernel_clone+0x222/0x840 kernel/fork.c:2907
 __do_sys_clone kernel/fork.c:3050 [inline]
 __se_sys_clone kernel/fork.c:3034 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:3034
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fce9f479d13
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffe86e4dfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fce9f479d13
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000555556bca750 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
 </TASK>