======================================
| [ 13.065845][ C0] #2: ffffffff89379b30 (remove_cache_srcu){.+.+}-{0:0}, at: kasan_quarantine_reduce (./include/linux/srcu.h:161 ./include/linux/srcu.h:253 mm/kasan/quarantine.c:259) 
| [ 13.066250][ C0] #3: ffffffff89174480 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2562) 
| [   13.066617][    C0]
| [   13.066617][    C0] stack backtrace:
[   13.066895][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.066898][    C0] Call Trace:
[   13.066899][    C0]  <IRQ>
[ 13.066901][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 13.066907][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 13.066911][ C0] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 13.066915][ C0] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 13.066920][ C0] ? save_trace (kernel/locking/lockdep.c:594) 
[ 13.066925][ C0] mark_lock (kernel/locking/lockdep.c:4754) 
[ 13.066928][ C0] mark_usage (kernel/locking/lockdep.c:4643) 
[ 13.066931][ C0] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 13.066935][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 13.066938][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 13.066942][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.066945][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 13.066947][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 13.066950][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 13.066954][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 13.066956][ C0] simple_pin_fs (fs/libfs.c:1066) 
[ 13.066959][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 13.066963][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 13.066968][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 13.066972][ C0] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 13.066976][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.066980][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 13.066983][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 13.066986][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 13.066990][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.066993][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 13.066996][ C0] ? qlist_free_all (mm/kasan/quarantine.c:174) 
[ 13.067000][ C0] ? kasan_quarantine_reduce (./include/linux/srcu.h:400 mm/kasan/quarantine.c:287) 
[ 13.067003][ C0] ? __kasan_slab_alloc (mm/kasan/common.c:329) 
[ 13.067006][ C0] ? __kmalloc_noprof (mm/slub.c:4148 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4339) 
[ 13.067010][ C0] ? sigpool_reserve_scratch (./include/linux/slab.h:909 net/ipv4/tcp_sigpool.c:66) 
[ 13.067013][ C0] ? tcp_sigpool_alloc_ahash (net/ipv4/tcp_sigpool.c:164) 
[ 13.067015][ C0] ? tcp_ao_add_cmd (net/ipv4/tcp_ao.c:1570 net/ipv4/tcp_ao.c:1706) 
[ 13.067021][ C0] __put_net (net/core/net_namespace.c:732) 
[ 13.067024][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 13.067028][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.067031][ C0] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.067035][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 13.067039][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 13.067043][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 13.067046][ C0] ? note_gp_changes (kernel/rcu/tree.c:1324 (discriminator 1)) 
[ 13.067049][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 13.067054][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 13.067058][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 13.067063][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 13.067066][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 13.067068][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   13.067071][    C0]  </IRQ>
[   13.067072][    C0]  <TASK>
[ 13.067074][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.067077][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 13.067081][ C0] Code: 74 24 10 e8 91 1e 85 fd 48 89 ef e8 09 71 85 fd 81 e3 00 02 00 00 75 29 9c 58 f6 c4 02 75 35 48 85 db 74 01 fb bf 01 00 00 00 <e8> 2a 79 79 fd 65 8b 05 83 38 98 02 85 c0 74 0e 5b 5d c3 cc cc cc
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	91                   	xchg   %eax,%ecx
   5:	1e                   	(bad)
   6:	85 fd                	test   %edi,%ebp
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 09 71 85 fd       	call   0xfffffffffd857119
  10:	81 e3 00 02 00 00    	and    $0x200,%ebx
  16:	75 29                	jne    0x41
  18:	9c                   	pushf
  19:	58                   	pop    %rax
  1a:	f6 c4 02             	test   $0x2,%ah
  1d:	75 35                	jne    0x54
  1f:	48 85 db             	test   %rbx,%rbx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
  2a:*	e8 2a 79 79 fd       	call   0xfffffffffd797959		<-- trapping instruction
  2f:	65 8b 05 83 38 98 02 	mov    %gs:0x2983883(%rip),%eax        # 0x29838b9
  36:	85 c0                	test   %eax,%eax
  38:	74 0e                	je     0x48
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	c3                   	ret
  3d:	cc                   	int3
  3e:	cc                   	int3
  3f:	cc                   	int3

Code starting with the faulting instruction
===========================================
   0:	e8 2a 79 79 fd       	call   0xfffffffffd79792f
   5:	65 8b 05 83 38 98 02 	mov    %gs:0x2983883(%rip),%eax        # 0x298388f
   c:	85 c0                	test   %eax,%eax
   e:	74 0e                	je     0x1e
  10:	5b                   	pop    %rbx
  11:	5d                   	pop    %rbp
  12:	c3                   	ret
  13:	cc                   	int3
  14:	cc                   	int3
  15:	cc                   	int3
[   13.067084][    C0] RSP: 0018:ffffc90000ac77a8 EFLAGS: 00000206
[   13.067088][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000080
[   13.067090][    C0] RDX: 0000000000000000 RSI: ffffffff88c881e1 RDI: 0000000000000001
[   13.067092][    C0] RBP: ffff8880010bb940 R08: 0000000000000001 R09: 0000000000000001
[   13.067093][    C0] R10: ffffffff89bd9497 R11: ffff8880010bb958 R12: ffff8880029903c8
[   13.067095][    C0] R13: 0000000000000000 R14: ffffc90000ac77f8 R15: ffff88800574ec20
[ 13.067101][ C0] qlist_free_all (mm/kasan/quarantine.c:174) 
[ 13.067105][ C0] ? sigpool_reserve_scratch (./include/linux/slab.h:909 net/ipv4/tcp_sigpool.c:66) 
[ 13.067108][ C0] kasan_quarantine_reduce (./include/linux/srcu.h:400 mm/kasan/quarantine.c:287) 
[ 13.067113][ C0] __kasan_slab_alloc (mm/kasan/common.c:329) 
[ 13.067116][ C0] __kmalloc_noprof (mm/slub.c:4148 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4339) 
[ 13.067121][ C0] sigpool_reserve_scratch (./include/linux/slab.h:909 net/ipv4/tcp_sigpool.c:66) 
[ 13.067125][ C0] tcp_sigpool_alloc_ahash (net/ipv4/tcp_sigpool.c:164) 
[ 13.067129][ C0] ? __pfx_tcp_sigpool_alloc_ahash (net/ipv4/tcp_sigpool.c:158) 
[ 13.067133][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.067137][ C0] ? __kasan_kmalloc (mm/kasan/common.c:398) 
[ 13.067142][ C0] tcp_ao_add_cmd (net/ipv4/tcp_ao.c:1570 net/ipv4/tcp_ao.c:1706) 
[ 13.067146][ C0] ? __pfx_tcp_ao_add_cmd (net/ipv4/tcp_ao.c:1598) 
[ 13.067149][ C0] ? check_prev_add (kernel/locking/lockdep.c:3170) 
[ 13.067151][ C0] ? check_prev_add (kernel/locking/lockdep.c:3204) 
[ 13.067154][ C0] ? add_chain_cache (kernel/locking/lockdep.c:3768) 
[ 13.067163][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 13.067169][ C0] ? do_tcp_setsockopt (net/ipv4/tcp.c:4025) 
[ 13.067172][ C0] do_tcp_setsockopt (net/ipv4/tcp.c:4025) 
[ 13.067176][ C0] ? __pfx_do_tcp_setsockopt (net/ipv4/tcp.c:3766) 
[ 13.067179][ C0] ? __create_object (mm/kmemleak.c:776) 
[ 13.067182][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 13.067185][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.067187][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 13.067191][ C0] ? lockdep_init_map_type (kernel/locking/lockdep.c:4974) 
[ 13.067196][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 13.067201][ C0] do_sock_setsockopt (net/socket.c:2296) 
[ 13.067204][ C0] ? __pfx_do_sock_setsockopt (net/socket.c:2265) 
[ 13.067207][ C0] ? fd_install (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 fs/file.c:661) 
[ 13.067211][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 13.067217][ C0] __sys_setsockopt (net/socket.c:2321) 
[ 13.067223][ C0] __x64_sys_setsockopt (net/socket.c:2324) 
[ 13.067226][ C0] ? do_syscall_64 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/entry-common.h:198 arch/x86/entry/syscall_64.c:90) 
[ 13.067231][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 13.067234][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 13.067238][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   13.067241][    C0] RIP: 0033:0x7f4fecd84b0e
[ 13.067245][ C0] Code: 0f 1f 40 00 48 8b 15 f1 92 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b1 0f 1f 00 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 b9
All code
========
   0:	0f 1f 40 00          	nopl   0x0(%rax)
   4:	48 8b 15 f1 92 0a 00 	mov    0xa92f1(%rip),%rdx        # 0xa92fc
   b:	f7 d8                	neg    %eax
   d:	64 89 02             	mov    %eax,%fs:(%rdx)
  10:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
  17:	eb b1                	jmp    0xffffffffffffffca
  19:	0f 1f 00             	nopl   (%rax)
  1c:	f3 0f 1e fa          	endbr64
  20:	49 89 ca             	mov    %rcx,%r10
  23:	b8 36 00 00 00       	mov    $0x36,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 0a                	ja     0x3c
  32:	c3                   	ret
  33:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  3a:	00 00 
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	15                   	.byte 0x15
  3f:	b9                   	.byte 0xb9

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 0a                	ja     0x12
   8:	c3                   	ret
   9:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  10:	00 00 
  12:	48                   	rex.W
  13:	8b                   	.byte 0x8b
  14:	15                   	.byte 0x15
  15:	b9                   	.byte 0xb9
[   13.067248][    C0] RSP: 002b:00007ffe0af43008 EFLAGS: 00000202 ORIG_RAX: 0000000000000036
[   13.067250][    C0] RAX: ffffffffffffffda RBX: 000000000041a300 RCX: 00007f4fecd84b0e
[   13.067252][    C0] RDX: 0000000000000026 RSI: 0000000000000006 RDI: 0000000000000005
[   13.067254][    C0] RBP: 0000000000000005 R08: 0000000000000120 R09: 0000000000000000
[   13.067256][    C0] R10: 00007ffe0af43010 R11: 0000000000000202 R12: 00007ffe0af43010
[   13.067258][    C0] R13: 0000000000000002 R14: 0000000000400000 R15: 0000000001fe000a
| [   13.091617][    C0] RCU nest depth: 0, expected: 0
| [   13.091801][    C0] INFO: lockdep is turned off.
| [   13.091996][    C0] Preemption disabled at:
| [ 13.091998][ C0] 0x0 
[   13.092341][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.092343][    C0] Call Trace:
[   13.092344][    C0]  <IRQ>
[ 13.092346][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 13.092353][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 13.092360][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 13.092364][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 13.092366][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 13.092370][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.092375][ C0] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 13.092380][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 13.092383][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 13.092388][ C0] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 13.092393][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 13.092396][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 13.092401][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 13.092405][ C0] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 13.092410][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.092414][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 13.092417][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 13.092421][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 13.092425][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.092428][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 13.092433][ C0] ? qlist_free_all (mm/kasan/quarantine.c:174) 
[ 13.092438][ C0] ? kasan_quarantine_reduce (./include/linux/srcu.h:400 mm/kasan/quarantine.c:287) 
[ 13.092441][ C0] ? __kasan_slab_alloc (mm/kasan/common.c:329) 
[ 13.092444][ C0] ? __kmalloc_noprof (mm/slub.c:4148 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4339) 
[ 13.092448][ C0] ? sigpool_reserve_scratch (./include/linux/slab.h:909 net/ipv4/tcp_sigpool.c:66) 
[ 13.092452][ C0] ? tcp_sigpool_alloc_ahash (net/ipv4/tcp_sigpool.c:164) 
[ 13.092455][ C0] ? tcp_ao_add_cmd (net/ipv4/tcp_ao.c:1570 net/ipv4/tcp_ao.c:1706) 
[ 13.092460][ C0] __put_net (net/core/net_namespace.c:732) 
[ 13.092464][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 13.092468][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.092471][ C0] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.092475][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 13.092481][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 13.092485][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 13.092487][ C0] ? note_gp_changes (kernel/rcu/tree.c:1324 (discriminator 1)) 
[ 13.092491][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 13.092496][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 13.092499][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 13.092504][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 13.092506][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 13.092509][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   13.092512][    C0]  </IRQ>
[   13.092513][    C0]  <TASK>
[ 13.092514][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.092517][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 13.092521][ C0] Code: 74 24 10 e8 91 1e 85 fd 48 89 ef e8 09 71 85 fd 81 e3 00 02 00 00 75 29 9c 58 f6 c4 02 75 35 48 85 db 74 01 fb bf 01 00 00 00 <e8> 2a 79 79 fd 65 8b 05 83 38 98 02 85 c0 74 0e 5b 5d c3 cc cc cc
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	91                   	xchg   %eax,%ecx
   5:	1e                   	(bad)
   6:	85 fd                	test   %edi,%ebp
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 09 71 85 fd       	call   0xfffffffffd857119
  10:	81 e3 00 02 00 00    	and    $0x200,%ebx
  16:	75 29                	jne    0x41
  18:	9c                   	pushf
  19:	58                   	pop    %rax
  1a:	f6 c4 02             	test   $0x2,%ah
  1d:	75 35                	jne    0x54
  1f:	48 85 db             	test   %rbx,%rbx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
  2a:*	e8 2a 79 79 fd       	call   0xfffffffffd797959		<-- trapping instruction
  2f:	65 8b 05 83 38 98 02 	mov    %gs:0x2983883(%rip),%eax        # 0x29838b9
  36:	85 c0                	test   %eax,%eax
  38:	74 0e                	je     0x48
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	c3                   	ret
  3d:	cc                   	int3
  3e:	cc                   	int3
  3f:	cc                   	int3

Code starting with the faulting instruction
===========================================
   0:	e8 2a 79 79 fd       	call   0xfffffffffd79792f
   5:	65 8b 05 83 38 98 02 	mov    %gs:0x2983883(%rip),%eax        # 0x298388f
   c:	85 c0                	test   %eax,%eax
   e:	74 0e                	je     0x1e
  10:	5b                   	pop    %rbx
  11:	5d                   	pop    %rbp
  12:	c3                   	ret
  13:	cc                   	int3
  14:	cc                   	int3
  15:	cc                   	int3
[   13.092523][    C0] RSP: 0018:ffffc90000ac77a8 EFLAGS: 00000206
[   13.092527][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000080
[   13.092529][    C0] RDX: 0000000000000000 RSI: ffffffff88c881e1 RDI: 0000000000000001
[   13.092530][    C0] RBP: ffff8880010bb940 R08: 0000000000000001 R09: 0000000000000001
[   13.092532][    C0] R10: ffffffff89bd9497 R11: ffff8880010bb958 R12: ffff8880029903c8
[   13.092534][    C0] R13: 0000000000000000 R14: ffffc90000ac77f8 R15: ffff88800574ec20
[ 13.092540][ C0] qlist_free_all (mm/kasan/quarantine.c:174) 
[ 13.092544][ C0] ? sigpool_reserve_scratch (./include/linux/slab.h:909 net/ipv4/tcp_sigpool.c:66) 
[ 13.092547][ C0] kasan_quarantine_reduce (./include/linux/srcu.h:400 mm/kasan/quarantine.c:287) 
[ 13.092551][ C0] __kasan_slab_alloc (mm/kasan/common.c:329) 
[ 13.092554][ C0] __kmalloc_noprof (mm/slub.c:4148 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4339) 
[ 13.092559][ C0] sigpool_reserve_scratch (./include/linux/slab.h:909 net/ipv4/tcp_sigpool.c:66) 
[ 13.092564][ C0] tcp_sigpool_alloc_ahash (net/ipv4/tcp_sigpool.c:164) 
[ 13.092568][ C0] ? __pfx_tcp_sigpool_alloc_ahash (net/ipv4/tcp_sigpool.c:158) 
[ 13.092571][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.092575][ C0] ? __kasan_kmalloc (mm/kasan/common.c:398) 
[ 13.092580][ C0] tcp_ao_add_cmd (net/ipv4/tcp_ao.c:1570 net/ipv4/tcp_ao.c:1706) 
[ 13.092584][ C0] ? __pfx_tcp_ao_add_cmd (net/ipv4/tcp_ao.c:1598) 
[ 13.092587][ C0] ? check_prev_add (kernel/locking/lockdep.c:3170) 
[ 13.092589][ C0] ? check_prev_add (kernel/locking/lockdep.c:3204) 
[ 13.092591][ C0] ? add_chain_cache (kernel/locking/lockdep.c:3768) 
[ 13.092601][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 13.092607][ C0] ? do_tcp_setsockopt (net/ipv4/tcp.c:4025) 
[ 13.092610][ C0] do_tcp_setsockopt (net/ipv4/tcp.c:4025) 
[ 13.092614][ C0] ? __pfx_do_tcp_setsockopt (net/ipv4/tcp.c:3766) 
[ 13.092617][ C0] ? __create_object (mm/kmemleak.c:776) 
[ 13.092619][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 13.092622][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.092625][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 13.092629][ C0] ? lockdep_init_map_type (kernel/locking/lockdep.c:4974) 
[ 13.092634][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 13.092638][ C0] do_sock_setsockopt (net/socket.c:2296) 
[ 13.092641][ C0] ? __pfx_do_sock_setsockopt (net/socket.c:2265) 
[ 13.092644][ C0] ? fd_install (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 fs/file.c:661) 
[ 13.092647][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 13.092654][ C0] __sys_setsockopt (net/socket.c:2321) 
[ 13.092659][ C0] __x64_sys_setsockopt (net/socket.c:2324) 
[ 13.092662][ C0] ? do_syscall_64 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/entry-common.h:198 arch/x86/entry/syscall_64.c:90) 
[ 13.092666][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 13.092669][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 13.092673][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   13.092676][    C0] RIP: 0033:0x7f4fecd84b0e
[ 13.092678][ C0] Code: 0f 1f 40 00 48 8b 15 f1 92 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b1 0f 1f 00 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 b9
All code
========
   0:	0f 1f 40 00          	nopl   0x0(%rax)
   4:	48 8b 15 f1 92 0a 00 	mov    0xa92f1(%rip),%rdx        # 0xa92fc
   b:	f7 d8                	neg    %eax
   d:	64 89 02             	mov    %eax,%fs:(%rdx)
  10:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
  17:	eb b1                	jmp    0xffffffffffffffca
  19:	0f 1f 00             	nopl   (%rax)
  1c:	f3 0f 1e fa          	endbr64
  20:	49 89 ca             	mov    %rcx,%r10
  23:	b8 36 00 00 00       	mov    $0x36,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 0a                	ja     0x3c
  32:	c3                   	ret
  33:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  3a:	00 00 
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	15                   	.byte 0x15
  3f:	b9                   	.byte 0xb9

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 0a                	ja     0x12
   8:	c3                   	ret
   9:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  10:	00 00 
  12:	48                   	rex.W
  13:	8b                   	.byte 0x8b
  14:	15                   	.byte 0x15
  15:	b9                   	.byte 0xb9
[   13.092680][    C0] RSP: 002b:00007ffe0af43008 EFLAGS: 00000202 ORIG_RAX: 0000000000000036
[   13.092683][    C0] RAX: ffffffffffffffda RBX: 000000000041a300 RCX: 00007f4fecd84b0e
[   13.092685][    C0] RDX: 0000000000000026 RSI: 0000000000000006 RDI: 0000000000000005
[   13.092686][    C0] RBP: 0000000000000005 R08: 0000000000000120 R09: 0000000000000000
[   13.092688][    C0] R10: 00007ffe0af43010 R11: 0000000000000202 R12: 00007ffe0af43010


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__might_resched:down_write:simple_recursive_removal:debugfs_remove:ref_tracker_dir_exit