======================================
| [   17.537558][    C1] 1 lock held by ksoftirqd/1/22:
| [ 17.537780][ C1] #0: ffffffff92d774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   17.538173][    C1]
| [   17.538173][    C1] stack backtrace:
[   17.538454][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.538456][    C1] Call Trace:
[   17.538458][    C1]  <TASK>
[ 17.538461][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.538467][ C1] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 17.538473][ C1] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 17.538478][ C1] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 17.538482][ C1] ? save_trace (kernel/locking/lockdep.c:595) 
[ 17.538488][ C1] mark_lock (kernel/locking/lockdep.c:4756) 
[ 17.538491][ C1] mark_usage (kernel/locking/lockdep.c:4645) 
[ 17.538494][ C1] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 17.538498][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.538502][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 17.538505][ C1] ? simple_pin_fs (fs/libfs.c:1067) 
[ 17.538511][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.538515][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 17.538517][ C1] ? simple_pin_fs (fs/libfs.c:1067) 
[ 17.538522][ C1] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 17.538526][ C1] ? simple_pin_fs (fs/libfs.c:1067) 
[ 17.538529][ C1] simple_pin_fs (fs/libfs.c:1067) 
[ 17.538533][ C1] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 17.538536][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 17.538542][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 17.538546][ C1] ? __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) 
[ 17.538552][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.538555][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 17.538558][ C1] ? smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 17.538562][ C1] ? kthread (kernel/kthread.c:464) 
[ 17.538564][ C1] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 17.538567][ C1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 17.538571][ C1] ? migrate_enable (./arch/x86/include/asm/preempt.h:104 ./include/linux/preempt.h:481 ./include/linux/preempt.h:481 kernel/sched/core.c:2427) 
[ 17.538575][ C1] ? __pfx_migrate_enable (kernel/sched/core.c:2402) 
[ 17.538580][ C1] __put_net (net/core/net_namespace.c:732) 
[ 17.538584][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.538588][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.538590][ C1] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.538595][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.538599][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.538602][ C1] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 17.538604][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 17.538609][ C1] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.538613][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 17.538617][ C1] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 17.538621][ C1] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 17.538623][ C1] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 17.538627][ C1] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 17.538631][ C1] kthread (kernel/kthread.c:464) 
[ 17.538634][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 17.538636][ C1] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 17.538638][ C1] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 17.538642][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.538645][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 17.538647][ C1] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 17.538650][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 17.538652][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   17.551876][    C1] RCU nest depth: 0, expected: 0
| [   17.552083][    C1] INFO: lockdep is turned off.
| [   17.552299][    C1] Preemption disabled at:
| [ 17.552301][ C1] handle_softirqs (kernel/softirq.c:553) 
[   17.552719][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.552720][    C1] Call Trace:
[   17.552722][    C1]  <TASK>
[ 17.552725][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.552732][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 17.552739][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.552743][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.552746][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 17.552749][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.552755][ C1] ? 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) 
[ 17.552760][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 17.552763][ C1] ? 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) 
[ 17.552766][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.552771][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.552774][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 17.552780][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 17.552783][ C1] ? __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) 
[ 17.552788][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.552791][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 17.552794][ C1] ? smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 17.552798][ C1] ? kthread (kernel/kthread.c:464) 
[ 17.552801][ C1] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 17.552804][ C1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 17.552809][ C1] ? migrate_enable (./arch/x86/include/asm/preempt.h:104 ./include/linux/preempt.h:481 ./include/linux/preempt.h:481 kernel/sched/core.c:2427) 
[ 17.552813][ C1] ? __pfx_migrate_enable (kernel/sched/core.c:2402) 
[ 17.552818][ C1] __put_net (net/core/net_namespace.c:732) 
[ 17.552822][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.552826][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.552828][ C1] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.552833][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.552836][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.552839][ C1] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 17.552842][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 17.552846][ C1] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.552850][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 17.552854][ C1] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 17.552858][ C1] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 17.552861][ C1] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 17.552864][ C1] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 17.552868][ C1] kthread (kernel/kthread.c:464) 
[ 17.552871][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 17.552873][ C1] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 17.552876][ C1] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 17.552879][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.552882][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 17.552885][ C1] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 17.552888][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 17.552890][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   19.930636][    C2] INFO: lockdep is turned off.
| [   19.930889][    C2] Preemption disabled at:
| [ 19.930892][ C2] handle_softirqs (kernel/softirq.c:553) 
| [   19.931370][    C2] Tainted: [W]=WARN
[   19.931371][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.931373][    C2] Call Trace:
[   19.931376][    C2]  <IRQ>
[ 19.931377][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 19.931385][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 19.931391][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 19.931396][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 19.931399][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 19.931404][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.931408][ 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) 
[ 19.931414][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 19.931417][ 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) 
[ 19.931420][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 19.931426][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 19.931429][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 19.931435][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 19.931439][ 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:2376) 
[ 19.931444][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.931448][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 19.931451][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 19.931454][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 19.931460][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 19.931463][ C2] ? unwind_next_frame (arch/x86/kernel/unwind_orc.c:588) 
[ 19.931467][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 19.931471][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 19.931474][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 19.931479][ C2] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.931482][ C2] ? __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) 
[ 19.931486][ C2] ? exit_mmap (mm/mmap.c:1311) 
[ 19.931491][ C2] ? mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 19.931495][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 19.931499][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.931504][ C2] __put_net (net/core/net_namespace.c:732) 
[ 19.931507][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 19.931511][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.931514][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.931518][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 19.931522][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.931525][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 19.931532][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 19.931537][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 19.931542][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 19.931545][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 19.931548][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   19.931552][    C2]  </IRQ>
[   19.931553][    C2]  <TASK>
[ 19.931555][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 19.931558][ C2] RIP: 0010:unwind_next_frame (arch/x86/kernel/unwind_orc.c:588) 
[ 19.931561][ C2] Code: 28 4c 89 f9 e8 f3 40 44 00 48 3d 50 a8 3f 8f 0f 84 cc 0b 00 00 48 ba 00 00 00 00 00 fc ff df 4c 89 e1 48 c1 e9 03 80 3c 11 00 <0f> 85 8b 11 00 00 48 8b 14 24 49 89 45 58 48 b8 00 00 00 00 00 fc
All code
========
   0:	28 4c 89 f9          	sub    %cl,-0x7(%rcx,%rcx,4)
   4:	e8 f3 40 44 00       	call   0x4440fc
   9:	48 3d 50 a8 3f 8f    	cmp    $0xffffffff8f3fa850,%rax
   f:	0f 84 cc 0b 00 00    	je     0xbe1
  15:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  1c:	fc ff df 
  1f:	4c 89 e1             	mov    %r12,%rcx
  22:	48 c1 e9 03          	shr    $0x3,%rcx
  26:	80 3c 11 00          	cmpb   $0x0,(%rcx,%rdx,1)
  2a:*	0f 85 8b 11 00 00    	jne    0x11bb		<-- trapping instruction
  30:	48 8b 14 24          	mov    (%rsp),%rdx
  34:	49 89 45 58          	mov    %rax,0x58(%r13)
  38:	48                   	rex.W
  39:	b8 00 00 00 00       	mov    $0x0,%eax
  3e:	00 fc                	add    %bh,%ah

Code starting with the faulting instruction
===========================================
   0:	0f 85 8b 11 00 00    	jne    0x1191
   6:	48 8b 14 24          	mov    (%rsp),%rdx
   a:	49 89 45 58          	mov    %rax,0x58(%r13)
   e:	48                   	rex.W
   f:	b8 00 00 00 00       	mov    $0x0,%eax
  14:	00 fc                	add    %bh,%ah
[   19.931564][    C2] RSP: 0018:ffffc90000a177f0 EFLAGS: 00000246
[   19.931567][    C2] RAX: ffffffff8f480d28 RBX: 1ffff92000142f07 RCX: 1ffff92000142f29
[   19.931569][    C2] RDX: dffffc0000000000 RSI: ffffc90000a17920 RDI: ffff888005770040
[   19.931571][    C2] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffc90000a17931
[   19.931573][    C2] R10: ffffffff8f412687 R11: ffffc90000a17930 R12: ffffc90000a17948
[   19.931574][    C2] R13: ffffc90000a178f0 R14: ffffffff93bb222c R15: ffffc90000a17ee0
[ 19.931577][ 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) 
[ 19.931580][ C2] ? do_group_exit (kernel/exit.c:1089) 
[ 19.931587][ C2] ? do_exit (kernel/exit.c:950) 
[ 19.931591][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.931594][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 19.931598][ C2] ? do_exit (kernel/exit.c:950) 
[ 19.931601][ C2] ? kernel_text_address (kernel/extable.c:99) 
[ 19.931605][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 19.931608][ C2] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 19.931614][ C2] ? do_group_exit (kernel/exit.c:1089) 
[ 19.931618][ C2] stack_trace_save (kernel/stacktrace.c:123) 
[ 19.931621][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 19.931625][ C2] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 19.931629][ C2] kasan_save_stack (mm/kasan/common.c:48) 
[ 19.931631][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 19.931634][ C2] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.931637][ C2] ? __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) 
[ 19.931640][ C2] ? exit_mmap (mm/mmap.c:1311) 
[ 19.931643][ C2] ? mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 19.931645][ C2] ? exit_mm (kernel/exit.c:596) 
[ 19.931648][ C2] ? do_exit (kernel/exit.c:950) 
[ 19.931651][ C2] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.931654][ C2] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 19.931657][ C2] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 19.931660][ C2] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 19.931664][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 19.931668][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.931671][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.931674][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 19.931679][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.931685][ C2] ? debug_object_active_state (lib/debugobjects.c:1056) 
[ 19.931692][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.931697][ C2] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2126 arch/x86/mm/physaddr.c:65) 
[ 19.931702][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.931707][ C2] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 19.931713][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 19.931717][ C2] ? __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) 
[ 19.931722][ C2] kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.931724][ C2] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4672) 
[ 19.931730][ C2] __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) 
[ 19.931734][ C2] exit_mmap (mm/mmap.c:1311) 
[ 19.931739][ C2] ? __pfx_exit_mmap (mm/mmap.c:1259) 
[ 19.931742][ C2] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:727 kernel/locking/mutex.c:746) 
[ 19.931747][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 19.931750][ C2] ? __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) 
[ 19.931758][ C2] mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 19.931762][ C2] exit_mm (kernel/exit.c:596) 
[ 19.931765][ C2] do_exit (kernel/exit.c:950) 
[ 19.931770][ C2] do_group_exit (kernel/exit.c:1089) 
[ 19.931774][ C2] __x64_sys_exit_group (kernel/exit.c:1117) 
[ 19.931777][ C2] x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 19.931782][ C2] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.931786][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.931788][    C2] RIP: 0033:0x7f5ad7e18abd
[ 19.931792][ C2] Code: Unable to access opcode bytes at 0x7f5ad7e18a93.

Code starting with the faulting instruction
===========================================
[   19.931793][    C2] RSP: 002b:00007ffdef193398 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   19.931796][    C2] RAX: ffffffffffffffda RBX: 00007f5ad7ef59c0 RCX: 00007f5ad7e18abd
[   19.931798][    C2] RDX: 00000000000000e7 RSI: ffffffffffffff80 RDI: 0000000000000000
[   19.931799][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000030
[   19.931801][    C2] R10: 00007ffdef193220 R11: 0000000000000246 R12: 00007f5ad7ef59c0


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