======================================
| [ 18.868119][ C2] #2: ffffffff97d794e0 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
| [ 18.868487][ C2] #3: ffffffff97d793c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   18.868855][    C2]
| [   18.868855][    C2] stack backtrace:
[   18.869121][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.869123][    C2] Call Trace:
[   18.869125][    C2]  <IRQ>
[ 18.869126][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 18.869132][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 18.869137][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 18.869144][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 18.869148][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 18.869152][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 18.869155][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 18.869159][ C2] ? qlist_free_all (mm/kasan/quarantine.c:174) 
[ 18.869162][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 18.869166][ C2] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 18.869169][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.869174][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 18.869177][ C2] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 18.869181][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 18.869184][ C2] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 18.869187][ C2] xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 18.869189][ C2] ? __pfx_xa_set_mark (lib/xarray.c:2144) 
[ 18.869192][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.869197][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.869202][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:54 lib/ref_tracker.c:223) 
[ 18.869205][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.869209][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.869212][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:213) 
[ 18.869216][ C2] ? ref_tracker_free (lib/ref_tracker.c:281) 
[ 18.869219][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.869223][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:281) 
[ 18.869225][ C2] ? __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:2368) 
[ 18.869230][ C2] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2578) 
[ 18.869233][ C2] ? rcu_core (kernel/rcu/tree.c:2834) 
[ 18.869235][ C2] ? handle_softirqs (kernel/softirq.c:580) 
[ 18.869239][ C2] __put_net (./include/linux/llist.h:238 ./include/linux/llist.h:265 net/core/net_namespace.c:732) 
[ 18.869244][ C2] ? set_track_prepare (mm/slub.c:936) 
[ 18.869248][ C2] ? __pfx___put_net (net/core/net_namespace.c:729) 
[ 18.869252][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 18.869257][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2368) 
[ 18.869260][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.869263][ C2] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2578) 
[ 18.869267][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.869270][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 18.869274][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.869277][ C2] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 18.869280][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.869285][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 18.869288][ C2] handle_softirqs (kernel/softirq.c:580) 
[ 18.869294][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 18.869297][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 18.869300][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   18.869304][    C2]  </IRQ>
[   18.869305][    C2]  <TASK>
[ 18.869306][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.869311][ C2] RIP: 0010:lock_acquire.part.0 (kernel/locking/lockdep.c:5875) 
[ 18.869315][ C2] Code: ff ff ff 65 0f c1 05 bd f0 15 05 83 f8 01 0f 85 3e 01 00 00 9c 58 f6 c4 02 0f 85 29 01 00 00 48 85 db 74 01 fb 48 8b 44 24 30 <65> 48 2b 05 ee af 15 05 0f 85 3a 01 00 00 48 83 c4 38 5b 5d 41 5c
All code
========
   0:	ff                   	(bad)
   1:	ff                   	(bad)
   2:	ff 65 0f             	jmp    *0xf(%rbp)
   5:	c1 05 bd f0 15 05 83 	roll   $0x83,0x515f0bd(%rip)        # 0x515f0c9
   c:	f8                   	clc
   d:	01 0f                	add    %ecx,(%rdi)
   f:	85 3e                	test   %edi,(%rsi)
  11:	01 00                	add    %eax,(%rax)
  13:	00 9c 58 f6 c4 02 0f 	add    %bl,0xf02c4f6(%rax,%rbx,2)
  1a:	85 29                	test   %ebp,(%rcx)
  1c:	01 00                	add    %eax,(%rax)
  1e:	00 48 85             	add    %cl,-0x7b(%rax)
  21:	db 74 01 fb          	(bad)  -0x5(%rcx,%rax,1)
  25:	48 8b 44 24 30       	mov    0x30(%rsp),%rax
  2a:*	65 48 2b 05 ee af 15 	sub    %gs:0x515afee(%rip),%rax        # 0x515b020		<-- trapping instruction
  31:	05 
  32:	0f 85 3a 01 00 00    	jne    0x172
  38:	48 83 c4 38          	add    $0x38,%rsp
  3c:	5b                   	pop    %rbx
  3d:	5d                   	pop    %rbp
  3e:	41 5c                	pop    %r12

Code starting with the faulting instruction
===========================================
   0:	65 48 2b 05 ee af 15 	sub    %gs:0x515afee(%rip),%rax        # 0x515aff6
   7:	05 
   8:	0f 85 3a 01 00 00    	jne    0x148
   e:	48 83 c4 38          	add    $0x38,%rsp
  12:	5b                   	pop    %rbx
  13:	5d                   	pop    %rbp
  14:	41 5c                	pop    %r12
[   18.869318][    C2] RSP: 0018:ffffc90000717720 EFLAGS: 00000206
[   18.869321][    C2] RAX: d7c0ea2c23bf7c00 RBX: 0000000000000200 RCX: 0000000000000001
[   18.869323][    C2] RDX: 0000000000000000 RSI: ffffffff9788de21 RDI: ffffffff9705a220
[   18.869325][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[   18.869326][    C2] R10: 0000000000000000 R11: ffffffff97d794e0 R12: 0000000000000002
[   18.869327][    C2] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff97d794e0
[ 18.869333][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.869337][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 18.869340][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 18.869344][ C2] unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 18.869347][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 18.869350][ C2] ? do_execveat_common.isra.0 (fs/exec.c:1855) 
[ 18.869354][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.869358][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 18.869362][ C2] ? do_execveat_common.isra.0 (fs/exec.c:1855) 
[ 18.869365][ C2] ? kernel_text_address (kernel/extable.c:99) 
[ 18.869369][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 18.869374][ C2] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 18.869380][ C2] ? do_execveat_common.isra.0 (fs/exec.c:1855) 
[ 18.869385][ C2] stack_trace_save (kernel/stacktrace.c:123) 
[ 18.869388][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 18.869390][ C2] ? check_bytes_and_report (mm/slub.c:1212) 
[ 18.869396][ C2] ? check_object (mm/slub.c:1289 mm/slub.c:1388) 
[ 18.869400][ C2] set_track_prepare (mm/slub.c:936) 
[ 18.869402][ C2] ? kasan_quarantine_reduce (./include/linux/srcu.h:400 mm/kasan/quarantine.c:287) 
[ 18.869405][ C2] ? __kasan_slab_alloc (mm/kasan/common.c:329) 
[ 18.869408][ C2] ? __kmalloc_noprof (mm/slub.c:4149 mm/slub.c:4197 mm/slub.c:4327 mm/slub.c:4340) 
[ 18.869411][ C2] ? load_elf_phdrs (./include/linux/slab.h:909 (discriminator 2) fs/binfmt_elf.c:525 (discriminator 2)) 
[ 18.869415][ C2] ? load_elf_binary (fs/binfmt_elf.c:954) 
[ 18.869419][ C2] ? exec_binprm (fs/exec.c:1667 fs/exec.c:1697) 
[ 18.869422][ C2] ? bprm_execve (fs/exec.c:1749 fs/exec.c:1725) 
[ 18.869425][ C2] ? do_execveat_common.isra.0 (fs/exec.c:1855) 
[ 18.869429][ C2] free_to_partial_list (mm/slub.c:4388) 
[ 18.869432][ C2] ? qlist_free_all (mm/kasan/quarantine.c:163 mm/kasan/quarantine.c:179) 
[ 18.869436][ C2] qlist_free_all (mm/kasan/quarantine.c:174) 
[ 18.869439][ C2] ? load_elf_phdrs (./include/linux/slab.h:909 (discriminator 2) fs/binfmt_elf.c:525 (discriminator 2)) 
[ 18.869442][ C2] kasan_quarantine_reduce (./include/linux/srcu.h:400 mm/kasan/quarantine.c:287) 
[ 18.869446][ C2] __kasan_slab_alloc (mm/kasan/common.c:329) 
[ 18.869449][ C2] __kmalloc_noprof (mm/slub.c:4149 mm/slub.c:4197 mm/slub.c:4327 mm/slub.c:4340) 
[ 18.869453][ C2] load_elf_phdrs (./include/linux/slab.h:909 (discriminator 2) fs/binfmt_elf.c:525 (discriminator 2)) 
[ 18.869456][ C2] ? __pfx_load_elf_phdrs (fs/binfmt_elf.c:507) 
[ 18.869459][ C2] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 21)) 
[ 18.869463][ C2] ? __kmalloc_cache_noprof (mm/slub.c:4361) 
[ 18.869467][ C2] load_elf_binary (fs/binfmt_elf.c:954) 
[ 18.869472][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.869477][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.869480][ C2] ? __pfx_load_elf_binary (fs/binfmt_elf.c:818) 
[ 18.869483][ C2] ? exec_binprm (fs/exec.c:1665 fs/exec.c:1697) 
[ 18.869489][ C2] exec_binprm (fs/exec.c:1667 fs/exec.c:1697) 
[ 18.869494][ C2] ? __pfx_exec_binprm (fs/exec.c:1681) 
[ 18.869497][ C2] ? bprm_execve (fs/exec.c:1739 fs/exec.c:1725) 
[ 18.869503][ C2] bprm_execve (fs/exec.c:1749 fs/exec.c:1725) 
[ 18.869506][ C2] do_execveat_common.isra.0 (fs/exec.c:1855) 
[ 18.869512][ C2] __x64_sys_execve (fs/exec.c:2000) 
[ 18.869515][ C2] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.869519][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.869521][    C2] RIP: 0033:0x7fd398ee140b
[ 18.869525][ C2] Code: c0 75 03 5f ff e7 c3 48 8b 0d f1 a9 1b 00 f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 80 00 00 00 00 f3 0f 1e fa b8 3b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c5 a9 1b 00 f7 d8 64 89 01 48
All code
========
   0:	c0 75 03 5f          	shlb   $0x5f,0x3(%rbp)
   4:	ff e7                	jmp    *%rdi
   6:	c3                   	ret
   7:	48 8b 0d f1 a9 1b 00 	mov    0x1ba9f1(%rip),%rcx        # 0x1ba9ff
   e:	f7 d8                	neg    %eax
  10:	64 89 01             	mov    %eax,%fs:(%rcx)
  13:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  17:	c3                   	ret
  18:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 3b 00 00 00       	mov    $0x3b,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d c5 a9 1b 00 	mov    0x1ba9c5(%rip),%rcx        # 0x1ba9ff
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d c5 a9 1b 00 	mov    0x1ba9c5(%rip),%rcx        # 0x1ba9d5
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.869527][    C2] RSP: 002b:00007ffeeea5ea18 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
[   18.869530][    C2] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd398ee140b
[   18.869532][    C2] RDX: 000056155fea16a0 RSI: 000056155fe9f550 RDI: 000056155fec36e0
[   18.869533][    C2] RBP: 000056155fec36e0 R08: 000056155fea0f50 R09: 0000000000000020
[   18.869535][    C2] R10: 00000000000001b6 R11: 0000000000000246 R12: 00000000ffffffff


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock