======================================
| [ 15.568226][ C3] #3: ffffffffba3775e0 (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) 
| [ 15.568641][ C3] #4: ffffffffba3774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   15.569055][    C3]
| [   15.569055][    C3] stack backtrace:
[   15.569353][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.569356][    C3] Call Trace:
[   15.569358][    C3]  <IRQ>
[ 15.569360][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.569368][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 15.569372][ C3] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 15.569377][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 15.569381][ C3] ? save_trace (kernel/locking/lockdep.c:595) 
[ 15.569388][ C3] mark_lock (kernel/locking/lockdep.c:4756) 
[ 15.569391][ C3] mark_usage (kernel/locking/lockdep.c:4645) 
[ 15.569394][ C3] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 15.569398][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.569402][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 15.569405][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.569410][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.569415][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.569417][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.569422][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 15.569426][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.569429][ C3] simple_pin_fs (fs/libfs.c:1067) 
[ 15.569433][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 15.569436][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 15.569444][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 15.569447][ 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:2376) 
[ 15.569454][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.569457][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 15.569460][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.569463][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.569469][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.569474][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5875) 
[ 15.569476][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 15.569479][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 15.569484][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 15.569487][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 15.569492][ C3] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 15.569496][ C3] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3092) 
[ 15.569500][ C3] ? kmem_cache_free (./include/linux/kmemleak.h:49 mm/slub.c:2305 mm/slub.c:4642 mm/slub.c:4744) 
[ 15.569508][ C3] __put_net (net/core/net_namespace.c:732) 
[ 15.569513][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.569517][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.569520][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.569523][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.569527][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.569531][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 15.569533][ C3] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 15.569536][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.569540][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.569544][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 15.569549][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.569552][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.569555][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.569559][    C3]  </IRQ>
[   15.569560][    C3]  <TASK>
[ 15.569562][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.569564][ C3] RIP: 0010:lock_acquire.part.0 (kernel/locking/lockdep.c:5875) 
[ 15.569568][ C3] Code: ff ff ff 65 0f c1 05 fd 8b 14 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 6e 4b 14 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 fd 8b 14 05 83 	roll   $0x83,0x5148bfd(%rip)        # 0x5148c09
   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 6e 4b 14 	sub    %gs:0x5144b6e(%rip),%rax        # 0x5144ba0		<-- 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 6e 4b 14 	sub    %gs:0x5144b6e(%rip),%rax        # 0x5144b76
   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
[   15.569571][    C3] RSP: 0018:ffffc90000ac7230 EFLAGS: 00000206
[   15.569574][    C3] RAX: 93684f63cac72f00 RBX: 0000000000000200 RCX: 0000000000000001
[   15.569576][    C3] RDX: 0000000000000000 RSI: ffffffffb9e7890a RDI: ffffffffb9653be0
[   15.569578][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[   15.569580][    C3] R10: 0000000000000000 R11: ffffffffba3775e0 R12: 0000000000000002
[   15.569581][    C3] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffba3775e0
[ 15.569587][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.569590][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.569593][ 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) 
[ 15.569597][ C3] unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 15.569599][ 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) 
[ 15.569602][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 15.569604][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 15.569608][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 15.569612][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 15.569614][ C3] ? kernel_text_address (kernel/extable.c:99) 
[ 15.569618][ C3] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 15.569622][ C3] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 15.569627][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 15.569630][ C3] stack_trace_save (kernel/stacktrace.c:123) 
[ 15.569633][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 15.569636][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 15.569640][ C3] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 15.569643][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:387 kernel/rcu/update.c:380) 
[ 15.569645][ C3] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 15.569649][ C3] kasan_save_stack (mm/kasan/common.c:48) 
[ 15.569653][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.569658][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.569662][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.569668][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.569671][ C3] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2126 arch/x86/mm/physaddr.c:65) 
[ 15.569676][ C3] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.569679][ C3] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2126 arch/x86/mm/physaddr.c:65) 
[ 15.569683][ C3] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:104 ./include/linux/rcupdate.h:955 ./include/linux/mmzone.h:2126 arch/x86/mm/physaddr.c:65) 
[ 15.569687][ C3] kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 15.569689][ C3] ? __pfx_free_object_rcu (mm/kmemleak.c:524) 
[ 15.569695][ C3] __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3092) 
[ 15.569699][ C3] kmem_cache_free (./include/linux/kmemleak.h:49 mm/slub.c:2305 mm/slub.c:4642 mm/slub.c:4744) 
[ 15.569703][ C3] ? __put_anon_vma (mm/rmap.c:2757) 
[ 15.569708][ C3] __put_anon_vma (mm/rmap.c:2757) 
[ 15.569712][ C3] unlink_anon_vmas (./include/linux/rmap.h:117 mm/rmap.c:444) 
[ 15.569717][ C3] free_pgtables (./include/linux/hugetlb_inline.h:11 mm/memory.c:372) 
[ 15.569725][ C3] ? __pfx_free_pgtables (mm/memory.c:349) 
[ 15.569727][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.569730][ C3] ? exit_mmap (./include/linux/seqlock.h:431 ./include/linux/mmap_lock.h:83 ./include/linux/mmap_lock.h:130 mm/mmap.c:1292) 
[ 15.569735][ 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) 
[ 15.569738][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.569743][ C3] exit_mmap (mm/mmap.c:1297) 
[ 15.569747][ C3] ? __pfx_exit_mmap (mm/mmap.c:1259) 
[ 15.569754][ 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) 
[ 15.569762][ C3] mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 15.569767][ C3] exec_mmap (fs/exec.c:954) 
[ 15.569771][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.569775][ C3] begin_new_exec (fs/exec.c:1204) 
[ 15.569781][ C3] load_elf_binary (fs/binfmt_elf.c:996) 
[ 15.569789][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.569794][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.569798][ C3] ? __pfx_load_elf_binary (fs/binfmt_elf.c:818) 
[ 15.569801][ C3] ? exec_binprm (fs/exec.c:1718 fs/exec.c:1750) 
[ 15.569807][ C3] exec_binprm (fs/exec.c:1718 fs/exec.c:1750) 
[ 15.569812][ C3] ? __pfx_exec_binprm (fs/exec.c:1734) 
[ 15.569815][ C3] ? bprm_execve (fs/exec.c:1792 fs/exec.c:1778) 
[ 15.569821][ C3] bprm_execve (fs/exec.c:1802 fs/exec.c:1778) 
[ 15.569825][ C3] do_execveat_common.isra.0 (fs/exec.c:1908) 
[ 15.569830][ C3] __x64_sys_execve (fs/exec.c:2053) 
[ 15.569835][ C3] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 15.569839][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   15.569842][    C3] RIP: 0033:0x7f03a103c40b
[ 15.569850][ C3] Code: Unable to access opcode bytes at 0x7f03a103c3e1.

Code starting with the faulting instruction
===========================================
[   15.569852][    C3] RSP: 002b:00007ffe8f5b4628 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
[   15.569855][    C3] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f03a103c40b
[   15.569856][    C3] RDX: 000055fbad1625a0 RSI: 000055fbad155ce0 RDI: 000055fbad169a40
[   15.569858][    C3] RBP: 000055fbad169a40 R08: 000055fbad16fc30 R09: 0000000000000020
[   15.569860][    C3] R10: 00000000000001b6 R11: 0000000000000246 R12: 00000000ffffffff
[   15.569861][    C3] R13: 000055fbad155ce0 R14: 000055fbad1625a0 R15: 000055fbad161f80
| [   15.604148][    C3] RCU nest depth: 1, expected: 0
| [   15.604511][    C3] INFO: lockdep is turned off.
| [   15.604730][    C3] Preemption disabled at:
| [ 15.604731][ C3] handle_softirqs (kernel/softirq.c:553) 
[   15.605189][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.605191][    C3] Call Trace:
[   15.605193][    C3]  <IRQ>
[ 15.605194][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.605203][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 15.605211][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.605217][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.605220][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 15.605225][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.605230][ 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) 
[ 15.605237][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 15.605240][ 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) 
[ 15.605243][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.605250][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.605253][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 15.605259][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 15.605263][ 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:2376) 
[ 15.605269][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.605273][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 15.605276][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.605279][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.605285][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.605289][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5875) 
[ 15.605292][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 15.605297][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 15.605302][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 15.605306][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 15.605312][ C3] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 15.605316][ C3] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3092) 
[ 15.605320][ C3] ? kmem_cache_free (./include/linux/kmemleak.h:49 mm/slub.c:2305 mm/slub.c:4642 mm/slub.c:4744) 
[ 15.605328][ C3] __put_net (net/core/net_namespace.c:732) 
[ 15.605332][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.605336][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.605339][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.605342][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.605349][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.605352][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 15.605355][ C3] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 15.605358][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.605362][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.605366][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 15.605371][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.605374][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.605377][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.605381][    C3]  </IRQ>
[   15.605382][    C3]  <TASK>
[ 15.605383][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.605386][ C3] RIP: 0010:lock_acquire.part.0 (kernel/locking/lockdep.c:5875) 
[ 15.605390][ C3] Code: ff ff ff 65 0f c1 05 fd 8b 14 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 6e 4b 14 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 fd 8b 14 05 83 	roll   $0x83,0x5148bfd(%rip)        # 0x5148c09
   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 6e 4b 14 	sub    %gs:0x5144b6e(%rip),%rax        # 0x5144ba0		<-- 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 6e 4b 14 	sub    %gs:0x5144b6e(%rip),%rax        # 0x5144b76
   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
[   15.605392][    C3] RSP: 0018:ffffc90000ac7230 EFLAGS: 00000206
[   15.605396][    C3] RAX: 93684f63cac72f00 RBX: 0000000000000200 RCX: 0000000000000001
[   15.605398][    C3] RDX: 0000000000000000 RSI: ffffffffb9e7890a RDI: ffffffffb9653be0
[   15.605399][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[   15.605401][    C3] R10: 0000000000000000 R11: ffffffffba3775e0 R12: 0000000000000002
[   15.605402][    C3] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffba3775e0
[ 15.605408][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.605411][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.605414][ 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) 
[ 15.605417][ C3] unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 15.605420][ 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) 
[ 15.605423][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 15.605425][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 15.605429][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 15.605433][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 15.605435][ C3] ? kernel_text_address (kernel/extable.c:99) 
[ 15.605439][ C3] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 15.605442][ C3] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 15.605447][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 15.605451][ C3] stack_trace_save (kernel/stacktrace.c:123) 
[ 15.605454][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 15.605457][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 15.605461][ C3] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 15.605464][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:387 kernel/rcu/update.c:380) 
[ 15.605466][ C3] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 15.605470][ C3] kasan_save_stack (mm/kasan/common.c:48) 
[ 15.605474][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.605479][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.605483][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.605488][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.605492][ C3] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2126 arch/x86/mm/physaddr.c:65) 
[ 15.605496][ C3] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.605500][ C3] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2126 arch/x86/mm/physaddr.c:65) 
[ 15.605503][ C3] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:104 ./include/linux/rcupdate.h:955 ./include/linux/mmzone.h:2126 arch/x86/mm/physaddr.c:65) 
[ 15.605507][ C3] kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 15.605510][ C3] ? __pfx_free_object_rcu (mm/kmemleak.c:524) 
[ 15.605513][ C3] __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3092) 
[ 15.605518][ C3] kmem_cache_free (./include/linux/kmemleak.h:49 mm/slub.c:2305 mm/slub.c:4642 mm/slub.c:4744) 
[ 15.605521][ C3] ? __put_anon_vma (mm/rmap.c:2757) 
[ 15.605526][ C3] __put_anon_vma (mm/rmap.c:2757) 
[ 15.605529][ C3] unlink_anon_vmas (./include/linux/rmap.h:117 mm/rmap.c:444) 
[ 15.605534][ C3] free_pgtables (./include/linux/hugetlb_inline.h:11 mm/memory.c:372) 
[ 15.605540][ C3] ? __pfx_free_pgtables (mm/memory.c:349) 
[ 15.605543][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.605545][ C3] ? exit_mmap (./include/linux/seqlock.h:431 ./include/linux/mmap_lock.h:83 ./include/linux/mmap_lock.h:130 mm/mmap.c:1292) 
[ 15.605551][ 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) 
[ 15.605554][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.605559][ C3] exit_mmap (mm/mmap.c:1297) 
[ 15.605563][ C3] ? __pfx_exit_mmap (mm/mmap.c:1259) 
[ 15.605569][ 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) 
[ 15.605578][ C3] mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 15.605583][ C3] exec_mmap (fs/exec.c:954) 
[ 15.605589][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.605592][ C3] begin_new_exec (fs/exec.c:1204) 
[ 15.605598][ C3] load_elf_binary (fs/binfmt_elf.c:996) 
[ 15.605605][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.605610][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.605614][ C3] ? __pfx_load_elf_binary (fs/binfmt_elf.c:818) 
[ 15.605617][ C3] ? exec_binprm (fs/exec.c:1718 fs/exec.c:1750) 
[ 15.605623][ C3] exec_binprm (fs/exec.c:1718 fs/exec.c:1750) 
[ 15.605628][ C3] ? __pfx_exec_binprm (fs/exec.c:1734) 
[ 15.605631][ C3] ? bprm_execve (fs/exec.c:1792 fs/exec.c:1778) 
[ 15.605637][ C3] bprm_execve (fs/exec.c:1802 fs/exec.c:1778) 
[ 15.605641][ C3] do_execveat_common.isra.0 (fs/exec.c:1908) 
[ 15.605647][ C3] __x64_sys_execve (fs/exec.c:2053) 
[ 15.605651][ C3] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 15.605656][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   15.605659][    C3] RIP: 0033:0x7f03a103c40b
[ 15.605664][ C3] Code: Unable to access opcode bytes at 0x7f03a103c3e1.

Code starting with the faulting instruction
===========================================
[   15.605666][    C3] RSP: 002b:00007ffe8f5b4628 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
[   15.605668][    C3] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f03a103c40b
[   15.605670][    C3] RDX: 000055fbad1625a0 RSI: 000055fbad155ce0 RDI: 000055fbad169a40
[   15.605672][    C3] RBP: 000055fbad169a40 R08: 000055fbad16fc30 R09: 0000000000000020
[   15.605673][    C3] R10: 00000000000001b6 R11: 0000000000000246 R12: 00000000ffffffff
[   15.605675][    C3] R13: 000055fbad155ce0 R14: 000055fbad1625a0 R15: 000055fbad161f80
| [   17.348753][    C0] INFO: lockdep is turned off.
| [   17.348959][    C0] Preemption disabled at:
| [ 17.348961][ C0] schedule_preempt_disabled (kernel/sched/core.c:6933) 
| [   17.349472][    C0] Tainted: [W]=WARN
[   17.349474][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.349476][    C0] Call Trace:
[   17.349478][    C0]  <IRQ>
[ 17.349480][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.349488][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 17.349498][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.349504][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.349507][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 17.349512][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.349519][ 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) 
[ 17.349527][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 17.349530][ 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) 
[ 17.349533][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.349540][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.349543][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 17.349552][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 17.349555][ 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:2376) 
[ 17.349563][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.349567][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 17.349570][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.349578][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.349584][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.349589][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.349592][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.349595][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.349597][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.349601][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 17.349604][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.349606][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 17.349610][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 17.349617][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 17.349620][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.349625][ C0] __put_net (net/core/net_namespace.c:732) 
[ 17.349630][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.349633][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.349636][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.349640][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.349644][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 17.349650][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.349657][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.349662][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 17.349668][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.349670][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.349673][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.349677][    C0]  </IRQ>
[   17.349678][    C0]  <TASK>
[ 17.349680][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.349682][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.349686][ C0] Code: a2 b5 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 47 10 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	a2 b5 00 c3 cc cc cc 	movabs %al,0xfccccccccc300b5
   7:	cc 0f 
   9:	1f                   	(bad)
   a:	00 90 90 90 90 90    	add    %dl,-0x6f6f6f70(%rax)
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 47 10 00 	verw   0x104783(%rip)        # 0x1047ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   17.349689][    C0] RSP: 0018:ffffffffba007df8 EFLAGS: 00000246
[   17.349693][    C0] RAX: 0000000000000000 RBX: 1ffffffff7400fc3 RCX: ffffffffb938f5d9
[   17.349695][    C0] RDX: ffffed1005ec66fb RSI: ffffffffb9653b60 RDI: ffffffffb6b8d18f
[   17.349697][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1005ec66fa
[   17.349699][    C0] R10: ffff88802f6337d3 R11: ffff888001becad8 R12: 0000000000000000
[   17.349701][    C0] R13: ffffffffba01f240 R14: dffffc0000000000 R15: 0000000000014770
[ 17.349705][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.349708][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.349712][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.349714][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.349717][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.349720][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.349723][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.349729][ C0] do_idle (kernel/sched/idle.c:325) 
[ 17.349733][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.349735][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 17.349739][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 17.349742][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 17.349747][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
handle_softirqs:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal
schedule_preempt_disabled:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal