rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 9353 jiffies s: 3705 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: 6166 Comm: udevd Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:separate_irq_context kernel/locking/lockdep.c:4622 [inline]
RIP: 0010:__lock_acquire+0xa77/0x3b30 kernel/locking/lockdep.c:5121
Code: fc ff df 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 37 29 00 00 48 8b 04 24 8b 80 d8 0a 00 00 85 c0 74 75 48 8b 74 24 28 <48> 8d 04 80 48 8d 6c c6 d8 48 b8 00 00 00 00 00 fc ff df 48 8d 7d
RSP: 0018:ffffc90000a18930 EFLAGS: 00000006
RAX: 0000000000000003 RBX: d6bf87c490213bdc RCX: ffffffff816b9b3a
RDX: 1ffff1100ca7c51b RSI: ffff8880653e28e0 RDI: ffffffff942672c0
RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff284ce58
R10: ffffffff942672c7 R11: 0000000000000002 R12: 0000000000000002
R13: 0000000000000000 R14: ffff8880653e2958 R15: 00000000000000e0
FS:  00007f9fb4173c80(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd574862f8 CR3: 000000007e0fa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire kernel/locking/lockdep.c:5754 [inline]
 lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719
 debug_objects_fill_pool lib/debugobjects.c:614 [inline]
 debug_object_activate+0x14c/0x540 lib/debugobjects.c:704
 debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline]
 debug_activate kernel/time/hrtimer.c:478 [inline]
 enqueue_hrtimer+0x25/0x3c0 kernel/time/hrtimer.c:1085
 __run_hrtimer kernel/time/hrtimer.c:1706 [inline]
 __hrtimer_run_queues+0xaac/0xcc0 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x43/0xb0 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:handle_softirqs+0x1da/0x8f0 kernel/softirq.c:540
Code: 89 44 24 18 48 89 6c 24 10 48 c7 c7 80 4f 2b 8b e8 5b 75 95 09 65 66 c7 05 39 ed b1 7e 00 00 e8 5c 3f 43 00 fb bb ff ff ff ff <49> c7 c6 c0 a0 80 8d 41 0f bc dc 83 c3 01 0f 85 a7 00 00 00 e9 b4
RSP: 0018:ffffc90000a18f30 EFLAGS: 00000206
RAX: 00000000000012d4 RBX: 00000000ffffffff RCX: 1ffffffff284e0c7
RDX: 0000000000000000 RSI: ffffffff8b2caf00 RDI: ffffffff8b8ff600
RBP: ffff8880653e1e00 R08: 0000000000000001 R09: fffffbfff284ce5a
R10: ffffffff942672d7 R11: 0000000000000002 R12: 0000000000000386
R13: 000000000000000a R14: 0000000000000001 R15: 0000000000000000
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x95/0xb0 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+0x1f2/0x560 kernel/locking/lockdep.c:5722
Code: c1 05 9a ad 96 7e 83 f8 01 0f 85 ea 02 00 00 9c 58 f6 c4 02 0f 85 d5 02 00 00 48 85 ed 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc900039bf8d8 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff92000737f1d RCX: ffffffff816ae74e
RDX: 0000000000000001 RSI: ffffffff8b2cb200 RDI: ffffffff8b8ff600
RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff284ce5a
R10: ffffffff942672d7 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: ffffffff8dd55da0 R15: 0000000000000000
 fs_reclaim_acquire mm/page_alloc.c:3823 [inline]
 fs_reclaim_acquire+0xca/0x160 mm/page_alloc.c:3814
 might_alloc include/linux/sched/mm.h:334 [inline]
 slab_pre_alloc_hook mm/slub.c:3891 [inline]
 slab_alloc_node mm/slub.c:3982 [inline]
 kmem_cache_alloc_noprof+0x54/0x2f0 mm/slub.c:4009
 lsm_file_alloc security/security.c:649 [inline]
 security_file_alloc+0x41/0x260 security/security.c:2710
 init_file+0x99/0x260 fs/file_table.c:152
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:206
 path_openat+0xe0/0x2e50 fs/namei.c:3799
 do_filp_open+0x1dc/0x430 fs/namei.c:3840
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1413
 do_sys_open fs/open.c:1428 [inline]
 __do_sys_openat fs/open.c:1444 [inline]
 __se_sys_openat fs/open.c:1439 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1439
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9fb3d169a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffd57485dc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f9fb3d169a4
RDX: 0000000000080000 RSI: 00007ffd57485ef8 RDI: 00000000ffffff9c
RBP: 00007ffd57485ef8 R08: 0000000000000008 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000
R13: 000055601a815b42 R14: 0000000000000001 R15: 000055601a831160
 </TASK>