rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2657 jiffies s: 1909 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4544 Comm: udevd Not tainted 6.10.0-rc5-syzkaller-00253-gde0a9f448633 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:lock_acquire+0x2f/0x550 kernel/locking/lockdep.c:5722
Code: 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec 20 01 00 00 4c 89 4c 24 28 4c 89 44 24 38 48 89 4c 24 30 89 54 24 1c <41> 89 f6 48 89 7c 24 20 65 48 8b 04 25 28 00 00 00 48 89 84 24 00
RSP: 0018:ffffc90000007a00 EFLAGS: 00000086
RAX: 0000000000010003 RBX: 1ffff92000000f70 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff949ec360
RBP: ffffc90000007b48 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f5aa0e R12: 0000000000000046
R13: 1ffff92000000f6c R14: ffffffff949ec348 R15: dffffc0000000000
FS:  00007f8d7d44dc80(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c3dd7eefa8 CR3: 000000006e580000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __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_activate+0x16d/0x510 lib/debugobjects.c:708
 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:1704 [inline]
 __hrtimer_run_queues+0x6cb/0xd50 kernel/time/hrtimer.c:1751
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1813
 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:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:206
Code: 8b 3d 8c 88 45 0c 48 89 de 5b e9 63 40 5a 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 c0 d4 03 00 65 8b 15 70 aa 6d 7e f7 c2 00 01 ff 00
RSP: 0018:ffffc9000d16f340 EFLAGS: 00000202
RAX: ffffffff8140f6df RBX: 0000000000000002 RCX: ffff88807cc7da00
RDX: 0000000000000002 RSI: ffffffff8e1a1360 RDI: 0000000000000002
RBP: ffffffff90309440 R08: 0000000000000003 R09: ffffffff8140f6b2
R10: 0000000000000002 R11: ffff88807cc7da00 R12: ffffffff8fbde908
R13: dffffc0000000000 R14: 1ffff92001a2de84 R15: ffffffff9030943c
 unwind_next_frame+0x6ef/0x2a00 arch/x86/kernel/unwind_orc.c:505
 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
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3940 [inline]
 slab_alloc_node mm/slub.c:4002 [inline]
 kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4009
 anon_vma_chain_alloc mm/rmap.c:142 [inline]
 anon_vma_fork+0x1fa/0x580 mm/rmap.c:364
 dup_mmap kernel/fork.c:714 [inline]
 dup_mm kernel/fork.c:1688 [inline]
 copy_mm+0xdf3/0x2020 kernel/fork.c:1737
 copy_process+0x187a/0x3dc0 kernel/fork.c:2390
 kernel_clone+0x226/0x8f0 kernel/fork.c:2797
 __do_sys_clone kernel/fork.c:2940 [inline]
 __se_sys_clone kernel/fork.c:2924 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2924
 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: 0033:0x7f8d7d4fca12
Code: 41 5d 41 5e 41 5f c3 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 76 10 48 8b 15 e7 43 0f 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff643804c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 000055c3dd7e2301 RCX: 00007f8d7d4fca12
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 000055c3dd7d0910
R10: 00007f8d7d44df50 R11: 0000000000000246 R12: 000055c3dd87abc0
R13: 0000000000000000 R14: 0000000000000000 R15: 000055c3dd7d0910
 </TASK>