======================================
| [ 16.922685][ C3] #3: ffffffffa07745a0 (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) 
| [ 16.923090][ C3] #4: ffffffffa0774480 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2562) 
| [   16.923512][    C3]
| [   16.923512][    C3] stack backtrace:
[   16.923805][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.923808][    C3] Call Trace:
[   16.923810][    C3]  <IRQ>
[ 16.923812][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.923820][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 16.923827][ C3] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 16.923832][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 16.923837][ C3] ? save_trace (kernel/locking/lockdep.c:594) 
[ 16.923841][ C3] mark_lock (kernel/locking/lockdep.c:4754) 
[ 16.923846][ C3] mark_usage (kernel/locking/lockdep.c:4643) 
[ 16.923850][ C3] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 16.923855][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 16.923859][ C3] ? simple_pin_fs (fs/libfs.c:1066) 
[ 16.923865][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.923872][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 16.923876][ C3] ? simple_pin_fs (fs/libfs.c:1066) 
[ 16.923880][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 16.923885][ C3] ? simple_pin_fs (fs/libfs.c:1066) 
[ 16.923888][ C3] simple_pin_fs (fs/libfs.c:1066) 
[ 16.923892][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 16.923897][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 16.923903][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 16.923906][ C3] ? __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) 
[ 16.923914][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.923917][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 16.923920][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.923923][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 16.923929][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.923933][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5870) 
[ 16.923936][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 16.923940][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 16.923944][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 16.923950][ C3] ? set_track_prepare (mm/slub.c:936) 
[ 16.923956][ C3] ? ___slab_alloc (mm/slub.c:967 mm/slub.c:3848) 
[ 16.923959][ C3] ? __slab_alloc.constprop.0 (mm/slub.c:3948) 
[ 16.923962][ C3] ? __kmalloc_cache_noprof (mm/slub.c:4023 mm/slub.c:4184 mm/slub.c:4353) 
[ 16.923968][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.923972][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 16.923976][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.923979][ C3] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.923983][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 16.923987][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 16.923990][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 16.923994][ C3] ? note_gp_changes (kernel/rcu/tree.c:1324 (discriminator 1)) 
[ 16.923998][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 16.924002][ C3] rcu_core (kernel/rcu/tree.c:2826) 
[ 16.924006][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.924010][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.924013][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.924016][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   16.924019][    C3]  </IRQ>
[   16.924020][    C3]  <TASK>
[ 16.924022][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.924025][ C3] RIP: 0010:lock_acquire.part.0 (kernel/locking/lockdep.c:5870) 
[ 16.924030][ C3] Code: ff ff ff 65 0f c1 05 9d 03 13 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 0e c7 12 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 9d 03 13 05 83 	roll   $0x83,0x513039d(%rip)        # 0x51303a9
   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 0e c7 12 	sub    %gs:0x512c70e(%rip),%rax        # 0x512c740		<-- 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 0e c7 12 	sub    %gs:0x512c70e(%rip),%rax        # 0x512c716
   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
[   16.924033][    C3] RSP: 0018:ffffc90000a672d8 EFLAGS: 00000206
[   16.924036][    C3] RAX: 052caeaf34dc2400 RBX: 0000000000000200 RCX: 0000000000000001
[   16.924038][    C3] RDX: 0000000000000000 RSI: ffffffffa026f3db RDI: ffffffff9fa50ce0
[   16.924040][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[   16.924042][    C3] R10: 0000000000000078 R11: ffffffffa07745a0 R12: 0000000000000002
[   16.924044][    C3] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa07745a0
[ 16.924049][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.924053][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 16.924056][ C3] ? 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) 
[ 16.924061][ C3] unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 16.924065][ C3] ? 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) 
[ 16.924068][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.924073][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 16.924076][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 16.924081][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.924084][ C3] ? kernel_text_address (kernel/extable.c:99) 
[ 16.924090][ C3] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 16.924094][ C3] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 16.924098][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.924103][ C3] stack_trace_save (kernel/stacktrace.c:123) 
[ 16.924106][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 16.924110][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 16.924114][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.924118][ C3] set_track_prepare (mm/slub.c:936) 
[ 16.924121][ C3] ? __kmalloc_cache_noprof (mm/slub.c:4023 mm/slub.c:4184 mm/slub.c:4353) 
[ 16.924124][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.924128][ C3] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 16.924133][ C3] ___slab_alloc (mm/slub.c:967 mm/slub.c:3848) 
[ 16.924136][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.924141][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.924144][ C3] __slab_alloc.constprop.0 (mm/slub.c:3948) 
[ 16.924148][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.924151][ C3] __kmalloc_cache_noprof (mm/slub.c:4023 mm/slub.c:4184 mm/slub.c:4353) 
[ 16.924154][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 16.924159][ C3] kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.924163][ C3] ? __put_anon_vma (mm/rmap.c:2757) 
[ 16.924168][ C3] __put_anon_vma (mm/rmap.c:2757) 
[ 16.924172][ C3] unlink_anon_vmas (./include/linux/rmap.h:117 mm/rmap.c:444) 
[ 16.924177][ C3] free_pgtables (mm/memory.c:392) 
[ 16.924185][ C3] ? __pfx_free_pgtables (mm/memory.c:349) 
[ 16.924188][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 16.924191][ C3] ? exit_mmap (./include/linux/seqlock.h:431 ./include/linux/mmap_lock.h:82 ./include/linux/mmap_lock.h:129 mm/mmap.c:1292) 
[ 16.924195][ C3] ? down_write (./arch/x86/include/asm/preempt.h:104 kernel/locking/rwsem.c:1307 kernel/locking/rwsem.c:1313 kernel/locking/rwsem.c:1578) 
[ 16.924198][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.924202][ C3] exit_mmap (mm/mmap.c:1297) 
[ 16.924206][ C3] ? __pfx_exit_mmap (mm/mmap.c:1259) 
[ 16.924211][ C3] ? __mutex_unlock_slowpath (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4329 ./include/linux/atomic/atomic-long.h:1506 ./include/linux/atomic/atomic-instrumented.h:4481 kernel/locking/mutex.c:924) 
[ 16.924221][ C3] mmput (kernel/fork.c:1446 kernel/fork.c:1381 kernel/fork.c:1401) 
[ 16.924227][ C3] exec_mmap (fs/exec.c:1014) 
[ 16.924231][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.924235][ C3] begin_new_exec (fs/exec.c:1264) 
[ 16.924240][ C3] load_elf_binary (fs/binfmt_elf.c:1002) 
[ 16.924246][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 16.924252][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 16.924255][ C3] ? __pfx_load_elf_binary (fs/binfmt_elf.c:825) 
[ 16.924258][ C3] ? exec_binprm (fs/exec.c:1778 fs/exec.c:1810) 
[ 16.924264][ C3] exec_binprm (fs/exec.c:1778 fs/exec.c:1810) 
[ 16.924269][ C3] ? __pfx_exec_binprm (fs/exec.c:1794) 
[ 16.924272][ C3] ? bprm_execve (fs/exec.c:1852 fs/exec.c:1838) 
[ 16.924277][ C3] bprm_execve (fs/exec.c:1862 fs/exec.c:1838) 
[ 16.924281][ C3] do_execveat_common.isra.0 (fs/exec.c:1968) 
[ 16.924287][ C3] __x64_sys_execve (fs/exec.c:2113) 
[ 16.924290][ C3] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 16.924296][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.924298][    C3] RIP: 0033:0x7fed61c4d40b
[ 16.924307][ C3] Code: Unable to access opcode bytes at 0x7fed61c4d3e1.

Code starting with the faulting instruction
===========================================
[   16.924309][    C3] RSP: 002b:00007ffcb3443998 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
[   16.924311][    C3] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fed61c4d40b
[   16.924313][    C3] RDX: 000055f7ab80d620 RSI: 000055f7ab800d70 RDI: 000055f7ab80e140
[   16.924315][    C3] RBP: 000055f7ab80e140 R08: 000055f7ab80ced0 R09: 0000000000000020
[   16.924317][    C3] R10: 00000000000001b6 R11: 0000000000000246 R12: 00000000ffffffff
[   16.924318][    C3] R13: 000055f7ab800d70 R14: 000055f7ab80d620 R15: 000055f7ab7fc650
| [   16.957381][    C3] RCU nest depth: 1, expected: 0
| [   16.957600][    C3] INFO: lockdep is turned off.
| [   16.957816][    C3] Preemption disabled at:
| [ 16.957818][ C3] __slab_alloc.constprop.0 (mm/slub.c:3945) 
[   16.958402][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.958405][    C3] Call Trace:
[   16.958407][    C3]  <IRQ>
[ 16.958409][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.958418][ C3] __might_resched (kernel/sched/core.c:8819) 
[ 16.958424][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.958428][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.958431][ C3] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 16.958437][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.958445][ C3] ? 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) 
[ 16.958450][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 16.958453][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.958458][ C3] ? 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) 
[ 16.958462][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.958465][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 16.958471][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 16.958474][ C3] ? __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) 
[ 16.958482][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.958486][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 16.958489][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.958493][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 16.958499][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.958503][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5870) 
[ 16.958509][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 16.958514][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 16.958518][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 16.958523][ C3] ? set_track_prepare (mm/slub.c:936) 
[ 16.958529][ C3] ? ___slab_alloc (mm/slub.c:967 mm/slub.c:3848) 
[ 16.958531][ C3] ? __slab_alloc.constprop.0 (mm/slub.c:3948) 
[ 16.958534][ C3] ? __kmalloc_cache_noprof (mm/slub.c:4023 mm/slub.c:4184 mm/slub.c:4353) 
[ 16.958540][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.958544][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 16.958548][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.958551][ C3] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.958554][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 16.958559][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 16.958562][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 16.958566][ C3] ? note_gp_changes (kernel/rcu/tree.c:1324 (discriminator 1)) 
[ 16.958570][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 16.958575][ C3] rcu_core (kernel/rcu/tree.c:2826) 
[ 16.958578][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.958583][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.958585][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.958587][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   16.958591][    C3]  </IRQ>
[   16.958592][    C3]  <TASK>
[ 16.958593][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.958597][ C3] RIP: 0010:lock_acquire.part.0 (kernel/locking/lockdep.c:5870) 
[ 16.958601][ C3] Code: ff ff ff 65 0f c1 05 9d 03 13 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 0e c7 12 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 9d 03 13 05 83 	roll   $0x83,0x513039d(%rip)        # 0x51303a9
   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 0e c7 12 	sub    %gs:0x512c70e(%rip),%rax        # 0x512c740		<-- 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 0e c7 12 	sub    %gs:0x512c70e(%rip),%rax        # 0x512c716
   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
[   16.958604][    C3] RSP: 0018:ffffc90000a672d8 EFLAGS: 00000206
[   16.958607][    C3] RAX: 052caeaf34dc2400 RBX: 0000000000000200 RCX: 0000000000000001
[   16.958609][    C3] RDX: 0000000000000000 RSI: ffffffffa026f3db RDI: ffffffff9fa50ce0
[   16.958612][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[   16.958613][    C3] R10: 0000000000000078 R11: ffffffffa07745a0 R12: 0000000000000002
[   16.958615][    C3] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa07745a0
[ 16.958620][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.958624][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 16.958627][ C3] ? 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) 
[ 16.958631][ C3] unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 16.958635][ C3] ? 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) 
[ 16.958638][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.958644][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 16.958646][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 16.958652][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.958655][ C3] ? kernel_text_address (kernel/extable.c:99) 
[ 16.958661][ C3] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 16.958664][ C3] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 16.958669][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.958673][ C3] stack_trace_save (kernel/stacktrace.c:123) 
[ 16.958676][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 16.958680][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 16.958684][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.958688][ C3] set_track_prepare (mm/slub.c:936) 
[ 16.958692][ C3] ? __kmalloc_cache_noprof (mm/slub.c:4023 mm/slub.c:4184 mm/slub.c:4353) 
[ 16.958695][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.958698][ C3] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 16.958703][ C3] ___slab_alloc (mm/slub.c:967 mm/slub.c:3848) 
[ 16.958706][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.958711][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.958714][ C3] __slab_alloc.constprop.0 (mm/slub.c:3948) 
[ 16.958718][ C3] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.958721][ C3] __kmalloc_cache_noprof (mm/slub.c:4023 mm/slub.c:4184 mm/slub.c:4353) 
[ 16.958724][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 16.958729][ C3] kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.958732][ C3] ? __put_anon_vma (mm/rmap.c:2757) 
[ 16.958739][ C3] __put_anon_vma (mm/rmap.c:2757) 
[ 16.958743][ C3] unlink_anon_vmas (./include/linux/rmap.h:117 mm/rmap.c:444) 
[ 16.958747][ C3] free_pgtables (mm/memory.c:392) 
[ 16.958755][ C3] ? __pfx_free_pgtables (mm/memory.c:349) 
[ 16.958758][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 16.958761][ C3] ? exit_mmap (./include/linux/seqlock.h:431 ./include/linux/mmap_lock.h:82 ./include/linux/mmap_lock.h:129 mm/mmap.c:1292) 
[ 16.958765][ C3] ? down_write (./arch/x86/include/asm/preempt.h:104 kernel/locking/rwsem.c:1307 kernel/locking/rwsem.c:1313 kernel/locking/rwsem.c:1578) 
[ 16.958768][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.958773][ C3] exit_mmap (mm/mmap.c:1297) 
[ 16.958776][ C3] ? __pfx_exit_mmap (mm/mmap.c:1259) 
[ 16.958781][ C3] ? __mutex_unlock_slowpath (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4329 ./include/linux/atomic/atomic-long.h:1506 ./include/linux/atomic/atomic-instrumented.h:4481 kernel/locking/mutex.c:924) 
[ 16.958791][ C3] mmput (kernel/fork.c:1446 kernel/fork.c:1381 kernel/fork.c:1401) 
[ 16.958798][ C3] exec_mmap (fs/exec.c:1014) 
[ 16.958804][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.958808][ C3] begin_new_exec (fs/exec.c:1264) 
[ 16.958812][ C3] load_elf_binary (fs/binfmt_elf.c:1002) 
[ 16.958819][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 16.958824][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 16.958827][ C3] ? __pfx_load_elf_binary (fs/binfmt_elf.c:825) 
[ 16.958831][ C3] ? exec_binprm (fs/exec.c:1778 fs/exec.c:1810) 
[ 16.958836][ C3] exec_binprm (fs/exec.c:1778 fs/exec.c:1810) 
[ 16.958841][ C3] ? __pfx_exec_binprm (fs/exec.c:1794) 
[ 16.958844][ C3] ? bprm_execve (fs/exec.c:1852 fs/exec.c:1838) 
[ 16.958850][ C3] bprm_execve (fs/exec.c:1862 fs/exec.c:1838) 
[ 16.958854][ C3] do_execveat_common.isra.0 (fs/exec.c:1968) 
[ 16.958859][ C3] __x64_sys_execve (fs/exec.c:2113) 
[ 16.958862][ C3] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 16.958867][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.958870][    C3] RIP: 0033:0x7fed61c4d40b
[ 16.958878][ C3] Code: Unable to access opcode bytes at 0x7fed61c4d3e1.

Code starting with the faulting instruction
===========================================
[   16.958879][    C3] RSP: 002b:00007ffcb3443998 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
[   16.958882][    C3] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fed61c4d40b
[   16.958884][    C3] RDX: 000055f7ab80d620 RSI: 000055f7ab800d70 RDI: 000055f7ab80e140
[   16.958886][    C3] RBP: 000055f7ab80e140 R08: 000055f7ab80ced0 R09: 0000000000000020
[   16.958887][    C3] R10: 00000000000001b6 R11: 0000000000000246 R12: 00000000ffffffff
[   16.958889][    C3] R13: 000055f7ab800d70 R14: 000055f7ab80d620 R15: 000055f7ab7fc650
| [   19.440380][    C2] INFO: lockdep is turned off.
| [   19.440572][    C2] Preemption disabled at:
| [ 19.440574][ C2] handle_softirqs (kernel/softirq.c:553) 
| [   19.440985][    C2] Tainted: [W]=WARN
[   19.440987][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.440988][    C2] Call Trace:
[   19.440991][    C2]  <TASK>
[ 19.440994][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 19.441003][ C2] __might_resched (kernel/sched/core.c:8819) 
[ 19.441010][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 19.441016][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 19.441018][ C2] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 19.441025][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 19.441034][ C2] ? 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) 
[ 19.441040][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 19.441042][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 19.441048][ C2] ? 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) 
[ 19.441053][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 19.441056][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 19.441063][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 19.441066][ 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:2333) 
[ 19.441074][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 19.441079][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 19.441082][ C2] ? smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 19.441086][ C2] ? kthread (kernel/kthread.c:464) 
[ 19.441091][ C2] ? ret_from_fork (arch/x86/kernel/process.c:153) 
[ 19.441098][ C2] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 19.441105][ C2] ? migrate_enable (./arch/x86/include/asm/preempt.h:104 ./include/linux/preempt.h:481 ./include/linux/preempt.h:481 kernel/sched/core.c:2417) 
[ 19.441109][ C2] ? __pfx_migrate_enable (kernel/sched/core.c:2392) 
[ 19.441113][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 19.441117][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 19.441122][ C2] __put_net (net/core/net_namespace.c:732) 
[ 19.441126][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 19.441130][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 19.441133][ C2] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 19.441138][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 19.441142][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 19.441145][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 19.441151][ C2] rcu_core (kernel/rcu/tree.c:2826) 
[ 19.441155][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 19.441158][ C2] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 19.441162][ C2] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 19.441164][ C2] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 19.441167][ C2] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 19.441171][ C2] kthread (kernel/kthread.c:464) 
[ 19.441174][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 19.441177][ C2] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 19.441180][ C2] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 19.441186][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 19.441190][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 19.441193][ C2] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 19.441196][ C2] ? __pfx_kthread (kernel/kthread.c:413) 


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
handle_softirqs:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal