======================================
| [ 1840.749782][    C0] 1 lock held by swapper/0/0:
| [ 1840.749998][ C0] #0: ffffc90000007d60 ((&icsk->icsk_retransmit_timer)){+.-.}-{0:0}, at: call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
| [ 1840.750412][    C0]
| [ 1840.750412][    C0] stack backtrace:
[ 1840.750673][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1840.750676][    C0] Call Trace:
[ 1840.750678][    C0]  <IRQ>
[ 1840.750680][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1840.750688][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 1840.750694][ C0] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 1840.750698][ C0] ? add_lock_to_list (kernel/locking/lockdep.c:1407 kernel/locking/lockdep.c:1435) 
[ 1840.750704][ C0] mark_lock (kernel/locking/lockdep.c:4754) 
[ 1840.750708][ C0] mark_usage (kernel/locking/lockdep.c:4643) 
[ 1840.750712][ C0] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 1840.750717][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 1840.750721][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 1840.750725][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1840.750731][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1840.750734][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 1840.750738][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 1840.750741][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 1840.750743][ C0] simple_pin_fs (fs/libfs.c:1066) 
[ 1840.750746][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 1840.750752][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 1840.750757][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 1840.750763][ C0] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 1840.750767][ C0] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 1840.750770][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 1840.750772][ C0] ? handle_softirqs (kernel/softirq.c:579) 
[ 1840.750776][ C0] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1840.750780][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1840.750783][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1840.750787][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1840.750792][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 1840.750795][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 1840.750798][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1840.750801][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1840.750807][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 1840.750809][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1840.750814][ C0] __put_net (net/core/net_namespace.c:732) 
[ 1840.750819][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 1840.750822][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1840.750829][ C0] call_timer_fn (kernel/time/timer.c:1789) 
[ 1840.750832][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1840.750834][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1840.750837][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 1840.750842][ C0] ? __run_timers (kernel/time/timer.c:1840 kernel/time/timer.c:2414) 
[ 1840.750845][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 1840.750849][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1840.750853][ C0] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 1840.750856][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1840.750861][ C0] ? __pfx_print_bfs_bug (kernel/locking/lockdep.c:154) 
[ 1840.750864][ C0] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 1840.750868][ C0] ? 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) 
[ 1840.750872][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1840.750874][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1840.750877][ C0] ? run_timer_base (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 1840.750882][ C0] run_timer_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 1840.750885][ C0] run_timer_softirq (kernel/time/timer.c:2446) 
[ 1840.750888][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 1840.750894][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1840.750897][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 1840.750900][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1840.750903][    C0]  </IRQ>
[ 1840.750904][    C0]  <TASK>
[ 1840.750906][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1840.750909][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 1840.750912][ C0] Code: bf d3 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 40 26 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	bf d3 00 c3 cc       	mov    $0xccc300d3,%edi
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  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 40 26 00 	verw   0x264083(%rip)        # 0x2640ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[ 1840.750916][    C0] RSP: 0018:ffffffff9d407df8 EFLAGS: 00000242
[ 1840.750919][    C0] RAX: 0000000000b921b9 RBX: 1ffffffff3a80fc3 RCX: ffffffff9c02ea39
[ 1840.750921][    C0] RDX: 0000000000000000 RSI: ffffffff9cd0cc8c RDI: ffffffff9c453940
[ 1840.750923][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9c667a
[ 1840.750925][    C0] R10: ffff88806ce333d3 R11: ffff88806ce28870 R12: 0000000000000000
[ 1840.750927][    C0] R13: ffffffff9d433240 R14: dffffc0000000000 R15: 0000000000014770
[ 1840.750931][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 1840.750936][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 1840.750939][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1840.750942][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1840.750946][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 1840.750952][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 1840.750963][ C0] do_idle (kernel/sched/idle.c:325) 
[ 1840.750969][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1840.750973][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 1840.750977][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 1840.750983][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 1840.750987][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 1840.750991][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 1840.773760][    C0] RCU nest depth: 0, expected: 0
| [ 1840.774074][    C0] INFO: lockdep is turned off.
| [ 1840.774392][    C0] Preemption disabled at:
| [ 1840.774396][ C0] schedule_preempt_disabled (kernel/sched/core.c:6919) 
[ 1840.775074][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1840.775078][    C0] Call Trace:
[ 1840.775081][    C0]  <IRQ>
[ 1840.775084][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1840.775096][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 1840.775110][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1840.775118][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1840.775124][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 1840.775131][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1840.775140][ 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) 
[ 1840.775148][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 1840.775154][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1840.775161][ 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) 
[ 1840.775169][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1840.775175][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 1840.775183][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 1840.775191][ C0] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 1840.775198][ C0] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 1840.775206][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 1840.775210][ C0] ? handle_softirqs (kernel/softirq.c:579) 
[ 1840.775218][ C0] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1840.775223][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1840.775229][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1840.775235][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1840.775242][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 1840.775247][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 1840.775253][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1840.775258][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1840.775266][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 1840.775270][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1840.775280][ C0] __put_net (net/core/net_namespace.c:732) 
[ 1840.775287][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 1840.775293][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1840.775301][ C0] call_timer_fn (kernel/time/timer.c:1789) 
[ 1840.775306][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1840.775311][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1840.775316][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 1840.775324][ C0] ? __run_timers (kernel/time/timer.c:1840 kernel/time/timer.c:2414) 
[ 1840.775330][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 1840.775338][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1840.775347][ C0] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 1840.775352][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1840.775361][ C0] ? __pfx_print_bfs_bug (kernel/locking/lockdep.c:154) 
[ 1840.775366][ C0] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 1840.775374][ C0] ? 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) 
[ 1840.775380][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1840.775385][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1840.775390][ C0] ? run_timer_base (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 1840.775399][ C0] run_timer_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 1840.775405][ C0] run_timer_softirq (kernel/time/timer.c:2446) 
[ 1840.775410][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 1840.775420][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1840.775426][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 1840.775432][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1840.775437][    C0]  </IRQ>
[ 1840.775439][    C0]  <TASK>
[ 1840.775441][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1840.775447][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 1840.775453][ C0] Code: bf d3 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 40 26 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	bf d3 00 c3 cc       	mov    $0xccc300d3,%edi
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  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 40 26 00 	verw   0x264083(%rip)        # 0x2640ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[ 1840.775458][    C0] RSP: 0018:ffffffff9d407df8 EFLAGS: 00000242
[ 1840.775465][    C0] RAX: 0000000000b921b9 RBX: 1ffffffff3a80fc3 RCX: ffffffff9c02ea39
[ 1840.775469][    C0] RDX: 0000000000000000 RSI: ffffffff9cd0cc8c RDI: ffffffff9c453940
[ 1840.775472][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9c667a
[ 1840.775475][    C0] R10: ffff88806ce333d3 R11: ffff88806ce28870 R12: 0000000000000000
[ 1840.775479][    C0] R13: ffffffff9d433240 R14: dffffc0000000000 R15: 0000000000014770
[ 1840.775486][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 1840.775496][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 1840.775501][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1840.775507][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1840.775513][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 1840.775521][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 1840.775532][ C0] do_idle (kernel/sched/idle.c:325) 
[ 1840.775538][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1840.775545][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 1840.775552][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 1840.775562][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 1840.775569][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 1840.775575][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 1861.220535][    C1] INFO: lockdep is turned off.
| [ 1861.220728][    C1] Preemption disabled at:
| [ 1861.220730][ C1] 0x0 
| [ 1861.221093][    C1] Tainted: [W]=WARN
[ 1861.221095][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1861.221097][    C1] Call Trace:
[ 1861.221100][    C1]  <IRQ>
[ 1861.221103][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1861.221113][ C1] __might_resched (kernel/sched/core.c:8819) 
[ 1861.221123][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1861.221129][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1861.221133][ C1] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 1861.221139][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1861.221146][ 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) 
[ 1861.221152][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 1861.221155][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1861.221162][ 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) 
[ 1861.221166][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1861.221169][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 1861.221174][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 1861.221179][ 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:2333) 
[ 1861.221184][ C1] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 1861.221190][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 1861.221192][ C1] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 1861.221197][ C1] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 1861.221200][ C1] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 1861.221203][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 1861.221209][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1861.221213][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1861.221216][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1861.221220][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1861.221225][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 1861.221228][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 1861.221231][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1861.221234][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1861.221239][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1861.221244][ C1] __put_net (net/core/net_namespace.c:732) 
[ 1861.221249][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 1861.221252][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1861.221259][ C1] call_timer_fn (kernel/time/timer.c:1789) 
[ 1861.221262][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1861.221265][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1861.221268][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 1861.221274][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1861.221279][ C1] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 1861.221282][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1861.221288][ C1] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 1861.221292][ C1] ? 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) 
[ 1861.221295][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1861.221298][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1861.221303][ C1] ? timer_expire_remote (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 1861.221308][ C1] timer_expire_remote (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 1861.221327][ C1] tmigr_handle_remote_cpu (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/time/timer_migration.c:961) 
[ 1861.221330][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1861.221333][ C1] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 1861.221336][ C1] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 1861.221339][ C1] ? __pfx_run_posix_cpu_timers (kernel/time/posix-cpu-timers.c:1403) 
[ 1861.221348][ C1] ? 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) 
[ 1861.221352][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1861.221358][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1861.221365][ C1] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 1861.221370][ C1] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 1861.221374][ C1] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 1861.221378][ C1] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 1861.221381][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 1861.221384][ C1] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:95 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) 
[ 1861.221389][ C1] ? ktime_get (kernel/time/timekeeping.c:226 (discriminator 4) kernel/time/timekeeping.c:335 (discriminator 4) kernel/time/timekeeping.c:752 (discriminator 4)) 
[ 1861.221394][ C1] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 1861.221401][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 1861.221406][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1861.221410][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 1861.221413][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1861.221417][    C1]  </IRQ>
[ 1861.221418][    C1]  <TASK>
[ 1861.221419][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1861.221423][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 1861.221427][ C1] Code: bf d3 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 40 26 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	bf d3 00 c3 cc       	mov    $0xccc300d3,%edi
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  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 40 26 00 	verw   0x264083(%rip)        # 0x2640ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[ 1861.221430][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[ 1861.221434][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffff9c02ea39
[ 1861.221436][    C1] RDX: ffffed100d9d667b RSI: ffffffff9c4538c0 RDI: ffffffff99591b5f
[ 1861.221438][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed100d9d667a
[ 1861.221440][    C1] R10: ffff88806ceb33d3 R11: ffffffffa01d9788 R12: 0000000000000000
[ 1861.221442][    C1] R13: ffff888001b18040 R14: dffffc0000000000 R15: 0000000000000000
[ 1861.221446][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 1861.221450][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1861.221456][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 1861.221459][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1861.221462][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1861.221466][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 1861.221470][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 1861.221478][ C1] do_idle (kernel/sched/idle.c:325) 
[ 1861.221481][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1861.221485][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 1861.221489][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 1861.221494][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 1865.317137][    C1] INFO: lockdep is turned off.
| [ 1865.317482][    C1] Preemption disabled at:
| [ 1865.317486][ C1] 0x0 
| [ 1865.318060][    C1] Tainted: [W]=WARN
[ 1865.318063][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1865.318066][    C1] Call Trace:
[ 1865.318069][    C1]  <IRQ>
[ 1865.318074][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1865.318087][ C1] __might_resched (kernel/sched/core.c:8819) 
[ 1865.318102][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1865.318110][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1865.318117][ C1] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 1865.318125][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1865.318134][ 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) 
[ 1865.318141][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 1865.318145][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1865.318155][ 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) 
[ 1865.318162][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1865.318168][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 1865.318175][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 1865.318184][ 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:2333) 
[ 1865.318190][ C1] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 1865.318198][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 1865.318201][ C1] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 1865.318209][ C1] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 1865.318213][ C1] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 1865.318218][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 1865.318226][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1865.318232][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1865.318237][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1865.318244][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1865.318250][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 1865.318254][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 1865.318259][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1865.318265][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1865.318271][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1865.318279][ C1] __put_net (net/core/net_namespace.c:732) 
[ 1865.318285][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 1865.318291][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1865.318299][ C1] call_timer_fn (kernel/time/timer.c:1789) 
[ 1865.318304][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1865.318308][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1865.318313][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 1865.318318][ C1] ? debug_object_activate (lib/debugobjects.c:837) 
[ 1865.318325][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1865.318335][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1865.318341][ C1] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 1865.318346][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1865.318356][ C1] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 1865.318360][ C1] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 1865.318369][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1865.318376][ C1] ? 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) 
[ 1865.318382][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1865.318386][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1865.318392][ C1] ? timer_expire_remote (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 1865.318401][ C1] timer_expire_remote (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 1865.318408][ C1] tmigr_handle_remote_cpu (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/time/timer_migration.c:961) 
[ 1865.318413][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1865.318419][ C1] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 1865.318424][ C1] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 1865.318430][ C1] ? __pfx_run_posix_cpu_timers (kernel/time/posix-cpu-timers.c:1403) 
[ 1865.318436][ C1] ? 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) 
[ 1865.318441][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1865.318448][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1865.318455][ C1] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 1865.318460][ C1] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 1865.318465][ C1] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 1865.318473][ C1] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 1865.318478][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 1865.318483][ C1] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:95 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) 
[ 1865.318489][ C1] ? ktime_get (kernel/time/timekeeping.c:226 (discriminator 4) kernel/time/timekeeping.c:335 (discriminator 4) kernel/time/timekeeping.c:752 (discriminator 4)) 
[ 1865.318495][ C1] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 1865.318504][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 1865.318514][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1865.318520][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 1865.318526][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1865.318530][    C1]  </IRQ>
[ 1865.318532][    C1]  <TASK>
[ 1865.318534][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1865.318539][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 1865.318545][ C1] Code: bf d3 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 40 26 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	bf d3 00 c3 cc       	mov    $0xccc300d3,%edi
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  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 40 26 00 	verw   0x264083(%rip)        # 0x2640ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[ 1865.318549][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[ 1865.318555][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffff9c02ea39
[ 1865.318559][    C1] RDX: ffffed100d9d667b RSI: ffffffff9c4538c0 RDI: ffffffff99591b5f
[ 1865.318563][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed100d9d667a
[ 1865.318566][    C1] R10: ffff88806ceb33d3 R11: ffffffffa01d9788 R12: 0000000000000000
[ 1865.318569][    C1] R13: ffff888001b18040 R14: dffffc0000000000 R15: 0000000000000000
[ 1865.318576][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 1865.318582][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1865.318591][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 1865.318596][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1865.318602][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1865.318608][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 1865.318614][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 1865.318624][ C1] do_idle (kernel/sched/idle.c:325) 
[ 1865.318631][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1865.318637][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 1865.318642][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 1865.318650][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 1906.277600][    C3] INFO: lockdep is turned off.
| [ 1906.277847][    C3] Preemption disabled at:
| [ 1906.277849][ C3] 0x0 
| [ 1906.278297][    C3] Tainted: [W]=WARN
[ 1906.278299][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1906.278301][    C3] Call Trace:
[ 1906.278303][    C3]  <IRQ>
[ 1906.278305][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1906.278316][ C3] __might_resched (kernel/sched/core.c:8819) 
[ 1906.278327][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1906.278334][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1906.278337][ C3] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 1906.278343][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278350][ 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) 
[ 1906.278357][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 1906.278360][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1906.278366][ 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) 
[ 1906.278370][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1906.278373][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 1906.278378][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 1906.278384][ 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) 
[ 1906.278389][ C3] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 1906.278395][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 1906.278398][ C3] ? handle_softirqs (kernel/softirq.c:579) 
[ 1906.278404][ C3] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1906.278408][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1906.278411][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1906.278415][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1906.278420][ C3] ? lock_acquire (kernel/locking/lockdep.c:5870) 
[ 1906.278425][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 1906.278431][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1906.278435][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 1906.278438][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 1906.278444][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 1906.278447][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1906.278452][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278457][ C3] __put_net (net/core/net_namespace.c:732) 
[ 1906.278463][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 1906.278466][ C3] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1906.278473][ C3] call_timer_fn (kernel/time/timer.c:1789) 
[ 1906.278476][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1906.278479][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1906.278482][ C3] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 1906.278484][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 1906.278489][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278494][ C3] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 1906.278497][ C3] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1906.278502][ C3] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 1906.278506][ C3] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1906.278509][ C3] ? 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) 
[ 1906.278512][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1906.278515][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1906.278518][ C3] ? run_timer_base (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 1906.278522][ C3] run_timer_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 1906.278526][ C3] run_timer_softirq (kernel/time/timer.c:2446) 
[ 1906.278529][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 1906.278534][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1906.278537][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 1906.278540][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1906.278543][    C3]  </IRQ>
[ 1906.278544][    C3]  <TASK>
[ 1906.278546][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1906.278548][ C3] RIP: 0010:lock_acquire (kernel/locking/lockdep.c:5870) 
[ 1906.278552][ C3] Code: 4c 89 54 24 48 48 83 c4 10 4d 89 f9 41 89 d8 44 89 f1 5b 44 89 ea 44 89 e6 48 89 ef 5d 41 5c 41 5d 41 5e 41 5f e9 ad fc ff ff <4c> 89 14 24 e8 44 76 08 00 4c 8b 14 24 84 c0 0f 85 33 ff ff ff 0f
All code
========
   0:	4c 89 54 24 48       	mov    %r10,0x48(%rsp)
   5:	48 83 c4 10          	add    $0x10,%rsp
   9:	4d 89 f9             	mov    %r15,%r9
   c:	41 89 d8             	mov    %ebx,%r8d
   f:	44 89 f1             	mov    %r14d,%ecx
  12:	5b                   	pop    %rbx
  13:	44 89 ea             	mov    %r13d,%edx
  16:	44 89 e6             	mov    %r12d,%esi
  19:	48 89 ef             	mov    %rbp,%rdi
  1c:	5d                   	pop    %rbp
  1d:	41 5c                	pop    %r12
  1f:	41 5d                	pop    %r13
  21:	41 5e                	pop    %r14
  23:	41 5f                	pop    %r15
  25:	e9 ad fc ff ff       	jmp    0xfffffffffffffcd7
  2a:*	4c 89 14 24          	mov    %r10,(%rsp)		<-- trapping instruction
  2e:	e8 44 76 08 00       	call   0x87677
  33:	4c 8b 14 24          	mov    (%rsp),%r10
  37:	84 c0                	test   %al,%al
  39:	0f 85 33 ff ff ff    	jne    0xffffffffffffff72
  3f:	0f                   	.byte 0xf

Code starting with the faulting instruction
===========================================
   0:	4c 89 14 24          	mov    %r10,(%rsp)
   4:	e8 44 76 08 00       	call   0x8764d
   9:	4c 8b 14 24          	mov    (%rsp),%r10
   d:	84 c0                	test   %al,%al
   f:	0f 85 33 ff ff ff    	jne    0xffffffffffffff48
  15:	0f                   	.byte 0xf
[ 1906.278555][    C3] RSP: 0000:ffffc90008846b48 EFLAGS: 00000293
[ 1906.278559][    C3] RAX: 0000000000000003 RBX: 0000000000000000 RCX: 0000000000000002
[ 1906.278561][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9d788620
[ 1906.278562][    C3] RBP: ffffffff9d788620 R08: 0000000000000000 R09: 0000000000000000
[ 1906.278564][    C3] R10: ffffffff99416397 R11: ffffc90008846cd8 R12: 0000000000000000
[ 1906.278566][    C3] R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000000
[ 1906.278569][ 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) 
[ 1906.278574][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 1906.278577][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278581][ C3] unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 1906.278584][ 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) 
[ 1906.278587][ C3] ? handle_mm_fault (mm/memory.c:6321) 
[ 1906.278592][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 1906.278597][ C3] ? handle_mm_fault (mm/memory.c:6321) 
[ 1906.278599][ C3] ? kernel_text_address (kernel/extable.c:99) 
[ 1906.278603][ C3] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 1906.278607][ C3] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1906.278611][ C3] ? handle_mm_fault (mm/memory.c:6321) 
[ 1906.278615][ C3] stack_trace_save (kernel/stacktrace.c:123) 
[ 1906.278618][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 1906.278621][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 1906.278624][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 1906.278628][ C3] kasan_save_stack (mm/kasan/common.c:48) 
[ 1906.278632][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 1906.278635][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 1906.278637][ C3] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 1906.278639][ C3] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 1906.278643][ C3] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 1906.278646][ C3] ? __create_object (mm/kmemleak.c:770) 
[ 1906.278648][ C3] ? __kmalloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4339) 
[ 1906.278651][ C3] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 1906.278655][ C3] ? virtqueue_add_sgs (drivers/virtio/virtio_ring.c:2282 drivers/virtio/virtio_ring.c:2316) 
[ 1906.278657][ C3] ? virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1440) 
[ 1906.278661][ C3] ? virtio_fs_send_req (fs/fuse/virtio_fs.c:1499) 
[ 1906.278663][ C3] ? flush_bg_queue (fs/fuse/dev.c:418) 
[ 1906.278668][ C3] ? fuse_request_queue_background (./include/linux/spinlock.h:391 fs/fuse/dev.c:728) 
[ 1906.278670][ C3] ? fuse_simple_background (fs/fuse/dev.c:753) 
[ 1906.278672][ C3] ? fuse_send_readpages (fs/fuse/file.c:995) 
[ 1906.278675][ C3] ? fuse_readahead (fs/fuse/file.c:1033) 
[ 1906.278677][ C3] ? read_pages (mm/readahead.c:160) 
[ 1906.278681][ C3] ? page_cache_ra_unbounded (mm/readahead.c:265 (discriminator 2)) 
[ 1906.278685][ C3] ? do_sync_mmap_readahead (mm/filemap.c:3263) 
[ 1906.278689][ C3] ? filemap_fault (mm/filemap.c:3403) 
[ 1906.278692][ C3] ? __do_fault (mm/memory.c:5098) 
[ 1906.278696][ C3] ? do_pte_missing (mm/memory.c:5518 mm/memory.c:5652 mm/memory.c:4160) 
[ 1906.278698][ C3] ? handle_pte_fault (mm/memory.c:5997) 
[ 1906.278701][ C3] ? __handle_mm_fault (mm/memory.c:6140) 
[ 1906.278703][ C3] ? handle_mm_fault (mm/memory.c:6321) 
[ 1906.278705][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278708][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1906.278714][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1906.278719][ C3] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 1906.278724][ C3] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 1906.278728][ C3] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 1906.278730][ C3] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:538) 
[ 1906.278732][ C3] ? virtqueue_add_sgs (drivers/virtio/virtio_ring.c:2282 drivers/virtio/virtio_ring.c:2316) 
[ 1906.278736][ C3] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 1906.278738][ C3] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 1906.278740][ C3] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 1906.278743][ C3] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 1906.278747][ C3] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 1906.278749][ C3] ? fuse_send_readpages (fs/fuse/file.c:992 (discriminator 3)) 
[ 1906.278752][ C3] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 1906.278754][ C3] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 1906.278757][ C3] __create_object (mm/kmemleak.c:770) 
[ 1906.278760][ C3] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 1906.278763][ C3] __kmalloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4339) 
[ 1906.278766][ C3] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 1906.278771][ C3] virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 1906.278774][ C3] ? 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) 
[ 1906.278779][ C3] ? __pfx_virtqueue_add_split (drivers/virtio/virtio_ring.c:538) 
[ 1906.278782][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1906.278785][ C3] ? sg_init_one (./include/linux/scatterlist.h:189 lib/scatterlist.c:144) 
[ 1906.278791][ C3] virtqueue_add_sgs (drivers/virtio/virtio_ring.c:2282 drivers/virtio/virtio_ring.c:2316) 
[ 1906.278795][ C3] virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1440) 
[ 1906.278799][ C3] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 1906.278803][ C3] ? __pfx_virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1376) 
[ 1906.278807][ C3] ? 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) 
[ 1906.278810][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1906.278812][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278816][ C3] ? __pfx_map_id_range_up (kernel/user_namespace.c:382) 
[ 1906.278820][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1906.278823][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1906.278826][ C3] ? 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) 
[ 1906.278829][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1906.278831][ C3] ? fuse_get_unique (fs/fuse/dev.c:317) 
[ 1906.278834][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278838][ 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) 
[ 1906.278842][ C3] virtio_fs_send_req (fs/fuse/virtio_fs.c:1499) 
[ 1906.278844][ C3] ? fuse_send_one (fs/fuse/dev.c:400) 
[ 1906.278849][ C3] flush_bg_queue (fs/fuse/dev.c:418) 
[ 1906.278852][ C3] ? xa_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/xarray.c:1621) 
[ 1906.278857][ C3] fuse_request_queue_background (./include/linux/spinlock.h:391 fs/fuse/dev.c:728) 
[ 1906.278861][ C3] fuse_simple_background (fs/fuse/dev.c:753) 
[ 1906.278864][ C3] fuse_send_readpages (fs/fuse/file.c:995) 
[ 1906.278868][ C3] fuse_readahead (fs/fuse/file.c:1033) 
[ 1906.278873][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278876][ C3] ? __pfx_fuse_readahead (fs/fuse/file.c:1006) 
[ 1906.278879][ C3] ? folios_put_refs (./arch/x86/include/asm/atomic.h:47 ./include/linux/atomic/atomic-arch-fallback.h:2258 ./include/linux/atomic/atomic-instrumented.h:1366 ./include/linux/page_ref.h:177 ./include/linux/page_ref.h:186 mm/swap.c:964) 
[ 1906.278883][ C3] ? __pfx_folios_put_refs (mm/swap.c:942) 
[ 1906.278888][ C3] read_pages (mm/readahead.c:160) 
[ 1906.278892][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278895][ C3] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1906.278899][ C3] ? __pfx_read_pages (mm/readahead.c:147) 
[ 1906.278905][ C3] page_cache_ra_unbounded (mm/readahead.c:265 (discriminator 2)) 
[ 1906.278910][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278914][ C3] do_sync_mmap_readahead (mm/filemap.c:3263) 
[ 1906.278918][ C3] ? __pfx_do_sync_mmap_readahead (mm/filemap.c:3203) 
[ 1906.278921][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 1906.278926][ C3] ? __filemap_get_folio (mm/filemap.c:1907) 
[ 1906.278930][ C3] filemap_fault (mm/filemap.c:3403) 
[ 1906.278934][ C3] ? __pfx_filemap_map_pages (mm/filemap.c:3692) 
[ 1906.278937][ C3] ? __pfx_filemap_fault (mm/filemap.c:3362) 
[ 1906.278940][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278944][ C3] ? do_fault_around (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/memory.c:5479) 
[ 1906.278947][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278950][ C3] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1906.278952][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 1906.278956][ C3] __do_fault (mm/memory.c:5098) 
[ 1906.278960][ C3] do_pte_missing (mm/memory.c:5518 mm/memory.c:5652 mm/memory.c:4160) 
[ 1906.278962][ C3] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1906.278966][ C3] handle_pte_fault (mm/memory.c:5997) 
[ 1906.278968][ C3] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 1906.278972][ C3] ? __pfx_handle_pte_fault (mm/memory.c:5954) 
[ 1906.278975][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.278980][ C3] __handle_mm_fault (mm/memory.c:6140) 
[ 1906.278983][ C3] ? __pfx___handle_mm_fault (mm/memory.c:6049) 
[ 1906.278985][ C3] ? rcu_read_unlock (./include/linux/rcupdate.h:341 (discriminator 9) ./include/linux/rcupdate.h:871 (discriminator 9)) 
[ 1906.278992][ C3] ? __pfx_lock_vma_under_rcu (mm/memory.c:6547) 
[ 1906.278995][ C3] handle_mm_fault (mm/memory.c:6321) 
[ 1906.278998][ C3] ? __pfx_handle_mm_fault (mm/memory.c:6276) 
[ 1906.279001][ C3] ? task_work_run (./include/linux/sched.h:2099 (discriminator 1) kernel/task_work.c:229 (discriminator 1)) 
[ 1906.279005][ C3] do_user_addr_fault (arch/x86/mm/fault.c:1338) 
[ 1906.279010][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1906.279014][ C3] exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1488 arch/x86/mm/fault.c:1538) 
[ 1906.279017][ C3] asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) 
[ 1906.279020][    C3] RIP: 0033:0x7f5d16de1a30
[ 1906.279025][ C3] Code: Unable to access opcode bytes at 0x7f5d16de1a06.

Code starting with the faulting instruction
===========================================
[ 1906.279026][    C3] RSP: 002b:00007ffc070f29d0 EFLAGS: 00010202
[ 1906.279028][    C3] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 1906.279030][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 1906.279031][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 1906.279032][    C3] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 1906.279034][    C3] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
| [ 1984.100452][    C0] INFO: lockdep is turned off.
| [ 1984.100669][    C0] Preemption disabled at:
| [ 1984.100671][ C0] handle_softirqs (kernel/softirq.c:553) 
| [ 1984.101099][    C0] Tainted: [W]=WARN
[ 1984.101101][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1984.101103][    C0] Call Trace:
[ 1984.101105][    C0]  <IRQ>
[ 1984.101106][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1984.101113][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 1984.101121][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1984.101126][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1984.101130][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 1984.101134][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1984.101139][ 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) 
[ 1984.101144][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 1984.101147][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1984.101152][ 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) 
[ 1984.101156][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1984.101159][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 1984.101164][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 1984.101169][ C0] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 1984.101172][ C0] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 1984.101177][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 1984.101179][ C0] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 1984.101184][ C0] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 1984.101187][ C0] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 1984.101190][ C0] ? handle_softirqs (kernel/softirq.c:579) 
[ 1984.101193][ C0] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1984.101196][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1984.101199][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1984.101203][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1984.101206][ C0] ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 kernel/rcu/tree_plugin.h:414) 
[ 1984.101209][ C0] ? 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) 
[ 1984.101214][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1984.101218][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1984.101221][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1984.101226][ C0] __put_net (net/core/net_namespace.c:732) 
[ 1984.101230][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 1984.101233][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1984.101238][ C0] call_timer_fn (kernel/time/timer.c:1789) 
[ 1984.101241][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1984.101244][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1984.101247][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 1984.101252][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1984.101256][ C0] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 1984.101260][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1984.101265][ C0] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 1984.101269][ C0] ? 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) 
[ 1984.101272][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1984.101275][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1984.101279][ C0] ? timer_expire_remote (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 1984.101285][ C0] timer_expire_remote (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 1984.101288][ C0] tmigr_handle_remote_cpu (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/time/timer_migration.c:961) 
[ 1984.101291][ C0] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 1984.101294][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1984.101296][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1984.101299][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 1984.101304][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1984.101309][ C0] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 1984.101312][ C0] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 1984.101315][ C0] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 1984.101319][ C0] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 1984.101323][ C0] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 1984.101325][ C0] ? 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) 
[ 1984.101328][ C0] ? spin_bug (kernel/locking/spinlock_debug.c:64 kernel/locking/spinlock_debug.c:78) 
[ 1984.101331][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1984.101335][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1984.101339][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 1984.101345][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1984.101348][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 1984.101351][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1984.101354][    C0]  </IRQ>
[ 1984.101355][    C0]  <TASK>
[ 1984.101356][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1984.101359][ C0] RIP: 0010:__rcu_read_lock (kernel/rcu/tree_plugin.h:391 kernel/rcu/tree_plugin.h:414) 
[ 1984.101363][ C0] Code: 2d ec dd be 05 48 8d bd 04 04 00 00 8b 9b 04 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 83 c3 01 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 61 48 b8 00 00 00
All code
========
   0:	2d ec dd be 05       	sub    $0x5beddec,%eax
   5:	48 8d bd 04 04 00 00 	lea    0x404(%rbp),%rdi
   c:	8b 9b 04 04 00 00    	mov    0x404(%rbx),%ebx
  12:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  19:	fc ff df 
  1c:	48 89 fa             	mov    %rdi,%rdx
  1f:	48 c1 ea 03          	shr    $0x3,%rdx
  23:	83 c3 01             	add    $0x1,%ebx
  26:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
  2a:*	48 89 f8             	mov    %rdi,%rax		<-- trapping instruction
  2d:	83 e0 07             	and    $0x7,%eax
  30:	83 c0 03             	add    $0x3,%eax
  33:	38 d0                	cmp    %dl,%al
  35:	7c 04                	jl     0x3b
  37:	84 d2                	test   %dl,%dl
  39:	75 61                	jne    0x9c
  3b:	48                   	rex.W
  3c:	b8                   	.byte 0xb8
  3d:	00 00                	add    %al,(%rax)
	...

Code starting with the faulting instruction
===========================================
   0:	48 89 f8             	mov    %rdi,%rax
   3:	83 e0 07             	and    $0x7,%eax
   6:	83 c0 03             	add    $0x3,%eax
   9:	38 d0                	cmp    %dl,%al
   b:	7c 04                	jl     0x11
   d:	84 d2                	test   %dl,%dl
   f:	75 61                	jne    0x72
  11:	48                   	rex.W
  12:	b8                   	.byte 0xb8
  13:	00 00                	add    %al,(%rax)
	...
[ 1984.101366][    C0] RSP: 0018:ffffc90003bf79b0 EFLAGS: 00000202
[ 1984.101369][    C0] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90003bf8001
[ 1984.101371][    C0] RDX: 0000000000000000 RSI: ffffffff98e00130 RDI: ffff88800b2fca44
[ 1984.101373][    C0] RBP: ffff88800b2fc640 R08: 0000000000000000 R09: ffffc90003bf7b09
[ 1984.101374][    C0] R10: ffffffff99416397 R11: ffffc90003bf7b08 R12: ffffc90003bf7b20
[ 1984.101376][    C0] R13: ffffc90003bf7ac8 R14: ffff88800b2fc640 R15: ffff8880019cd6c0
[ 1984.101379][ C0] ? 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) 
[ 1984.101383][ C0] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1984.101387][ C0] 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) 
[ 1984.101391][ C0] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1984.101394][ C0] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 1984.101399][ C0] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1984.101401][ C0] ? kernel_text_address (kernel/extable.c:99) 
[ 1984.101405][ C0] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 1984.101410][ C0] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1984.101414][ C0] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1984.101418][ C0] stack_trace_save (kernel/stacktrace.c:123) 
[ 1984.101421][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 1984.101425][ C0] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 1984.101429][ C0] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 1984.101433][ C0] kasan_save_stack (mm/kasan/common.c:48) 
[ 1984.101436][ C0] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 1984.101439][ C0] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 1984.101442][ C0] ? kmem_cache_free (mm/slub.c:2343 mm/slub.c:4642 mm/slub.c:4744) 
[ 1984.101445][ C0] ? fput_close_sync (fs/file_table.c:568) 
[ 1984.101449][ C0] ? __x64_sys_close (fs/open.c:1584 fs/open.c:1566 fs/open.c:1566) 
[ 1984.101452][ C0] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1984.101456][ C0] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1984.101459][ C0] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 1984.101461][ C0] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 1984.101467][ C0] ? 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) 
[ 1984.101470][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1984.101473][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1984.101477][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1984.101481][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1984.101484][ C0] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2127 arch/x86/mm/physaddr.c:65) 
[ 1984.101489][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1984.101492][ C0] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1984.101495][ C0] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 1984.101498][ C0] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:104 ./include/linux/rcupdate.h:955 ./include/linux/mmzone.h:2127 arch/x86/mm/physaddr.c:65) 
[ 1984.101503][ C0] kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 1984.101506][ C0] kmem_cache_free (mm/slub.c:2343 mm/slub.c:4642 mm/slub.c:4744) 
[ 1984.101509][ C0] ? fput_close_sync (fs/file_table.c:568) 
[ 1984.101513][ C0] fput_close_sync (fs/file_table.c:568) 
[ 1984.101517][ C0] ? __pfx_fput_close_sync (fs/file_table.c:568) 
[ 1984.101522][ C0] __x64_sys_close (fs/open.c:1584 fs/open.c:1566 fs/open.c:1566) 
[ 1984.101526][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1984.101530][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1984.101532][    C0] RIP: 0033:0x7f8a75f79e2b
[ 1984.101535][ C0] Code: 77 05 c3 0f 1f 40 00 f7 d8 89 05 d0 f3 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 f7 d8 89 05 a0 f3 00 00 b8
All code
========
   0:	77 05                	ja     0x7
   2:	c3                   	ret
   3:	0f 1f 40 00          	nopl   0x0(%rax)
   7:	f7 d8                	neg    %eax
   9:	89 05 d0 f3 00 00    	mov    %eax,0xf3d0(%rip)        # 0xf3df
   f:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
  14:	c3                   	ret
  15:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1c:	00 00 00 
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 03 00 00 00       	mov    $0x3,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 05                	ja     0x37
  32:	c3                   	ret
  33:	0f 1f 40 00          	nopl   0x0(%rax)
  37:	f7 d8                	neg    %eax
  39:	89 05 a0 f3 00 00    	mov    %eax,0xf3a0(%rip)        # 0xf3df
  3f:	b8                   	.byte 0xb8

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 05                	ja     0xd
   8:	c3                   	ret
   9:	0f 1f 40 00          	nopl   0x0(%rax)
   d:	f7 d8                	neg    %eax
   f:	89 05 a0 f3 00 00    	mov    %eax,0xf3a0(%rip)        # 0xf3b5
  15:	b8                   	.byte 0xb8
[ 1984.101538][    C0] RSP: 002b:00007ffe5025fcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[ 1984.101541][    C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8a75f79e2b
[ 1984.101542][    C0] RDX: 00007f8a75e8b2e8 RSI: 0000000000000004 RDI: 0000000000000005
[ 1984.101544][    C0] RBP: 00007ffe5025fe10 R08: 00000000c0010001 R09: 0000000000000040
[ 1984.101545][    C0] R10: ffff80758a174d64 R11: 0000000000000246 R12: 00007f8a75e8b2e8
[ 1984.101547][    C0] R13: 00000000c0010001 R14: 00007f8a75e8b040 R15: 00007f8a75f49840
| [ 2004.580577][    C1] INFO: lockdep is turned off.
| [ 2004.580784][    C1] Preemption disabled at:
| [ 2004.580786][ C1] __slab_alloc.constprop.0 (mm/slub.c:3945) 
| [ 2004.581225][    C1] Tainted: [W]=WARN
[ 2004.581226][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2004.581228][    C1] Call Trace:
[ 2004.581230][    C1]  <IRQ>
[ 2004.581232][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 2004.581238][ C1] __might_resched (kernel/sched/core.c:8819) 
[ 2004.581246][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 2004.581251][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 2004.581255][ C1] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 2004.581259][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 2004.581264][ 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) 
[ 2004.581269][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 2004.581272][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 2004.581277][ 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) 
[ 2004.581282][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 2004.581285][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 2004.581289][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 2004.581293][ 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:2333) 
[ 2004.581297][ C1] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 2004.581301][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 2004.581303][ C1] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 2004.581308][ C1] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 2004.581310][ C1] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 2004.581313][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 2004.581318][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 2004.581321][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 2004.581324][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 2004.581328][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 2004.581332][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 2004.581336][ C1] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 2004.581339][ C1] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 2004.581342][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 2004.581346][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 2004.581351][ C1] __put_net (net/core/net_namespace.c:732) 
[ 2004.581355][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 2004.581359][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 2004.581364][ C1] call_timer_fn (kernel/time/timer.c:1789) 
[ 2004.581367][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 2004.581370][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 2004.581372][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 2004.581375][ C1] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 2004.581379][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 2004.581382][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 2004.581387][ C1] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 2004.581390][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 2004.581395][ C1] ? __mod_timer (kernel/time/timer.c:1061) 
[ 2004.581398][ C1] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 2004.581402][ C1] ? 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) 
[ 2004.581405][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 2004.581408][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 2004.581411][ C1] ? timer_expire_remote (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 2004.581417][ C1] timer_expire_remote (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 2004.581420][ C1] tmigr_handle_remote_cpu (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/time/timer_migration.c:961) 
[ 2004.581424][ C1] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 2004.581426][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 2004.581428][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 2004.581431][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 2004.581434][ C1] ? 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) 
[ 2004.581437][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 2004.581440][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 2004.581445][ C1] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 2004.581451][ C1] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 2004.581456][ C1] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 2004.581461][ C1] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 2004.581465][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 2004.581469][ C1] ? 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) 
[ 2004.581473][ C1] ? spin_bug (kernel/locking/spinlock_debug.c:64 kernel/locking/spinlock_debug.c:78) 
[ 2004.581477][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 2004.581481][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 2004.581486][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 2004.581491][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 2004.581495][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 2004.581498][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 2004.581501][    C1]  </IRQ>
[ 2004.581502][    C1]  <TASK>
[ 2004.581504][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 2004.581506][ C1] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 2004.581510][ C1] Code: 74 24 10 e8 41 7c 59 fd 48 89 ef e8 b9 ce 59 fd 81 e3 00 02 00 00 75 29 9c 58 f6 c4 02 75 35 48 85 db 74 01 fb bf 01 00 00 00 <e8> da d6 4d fd 65 8b 05 63 c8 20 03 85 c0 74 0e 5b 5d c3 cc cc cc
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	41 7c 59             	rex.B jl 0x60
   7:	fd                   	std
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 b9 ce 59 fd       	call   0xfffffffffd59cec9
  10:	81 e3 00 02 00 00    	and    $0x200,%ebx
  16:	75 29                	jne    0x41
  18:	9c                   	pushf
  19:	58                   	pop    %rax
  1a:	f6 c4 02             	test   $0x2,%ah
  1d:	75 35                	jne    0x54
  1f:	48 85 db             	test   %rbx,%rbx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
  2a:*	e8 da d6 4d fd       	call   0xfffffffffd4dd709		<-- trapping instruction
  2f:	65 8b 05 63 c8 20 03 	mov    %gs:0x320c863(%rip),%eax        # 0x320c899
  36:	85 c0                	test   %eax,%eax
  38:	74 0e                	je     0x48
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	c3                   	ret
  3d:	cc                   	int3
  3e:	cc                   	int3
  3f:	cc                   	int3

Code starting with the faulting instruction
===========================================
   0:	e8 da d6 4d fd       	call   0xfffffffffd4dd6df
   5:	65 8b 05 63 c8 20 03 	mov    %gs:0x320c863(%rip),%eax        # 0x320c86f
   c:	85 c0                	test   %eax,%eax
   e:	74 0e                	je     0x1e
  10:	5b                   	pop    %rbx
  11:	5d                   	pop    %rbp
  12:	c3                   	ret
  13:	cc                   	int3
  14:	cc                   	int3
  15:	cc                   	int3
[ 2004.581513][    C1] RSP: 0018:ffffc900033d7998 EFLAGS: 00000206
[ 2004.581516][    C1] RAX: 0000000000000046 RBX: 0000000000000200 RCX: ffffffff998490df
[ 2004.581518][    C1] RDX: 0000000000000000 RSI: ffffffff9c4538c0 RDI: 0000000000000001
[ 2004.581520][    C1] RBP: ffff88800104f440 R08: 0000000000000000 R09: 0000000000000000
[ 2004.581522][    C1] R10: ffffffff9e26d697 R11: 0000000000400cc0 R12: ffff88800104f440
[ 2004.581524][    C1] R13: ffffea0000246b00 R14: ffff88800104de40 R15: ffff8880091ac278
[ 2004.581528][ C1] ? trace_irq_enable.constprop.0 (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:587 ./include/linux/cpumask.h:1143 ./include/trace/events/preemptirq.h:40) 
[ 2004.581535][ C1] get_partial_node.part.0 (mm/slub.c:2902) 
[ 2004.581540][ C1] ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 2004.581544][ C1] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 2004.581549][ C1] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 2004.581551][ C1] __slab_alloc.constprop.0 (mm/slub.c:3948) 
[ 2004.581556][ C1] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 2004.581558][ C1] kmem_cache_alloc_noprof (mm/slub.c:4023 mm/slub.c:4184 mm/slub.c:4203) 
[ 2004.581561][ C1] ? alloc_vfsmnt (fs/namespace.c:359) 
[ 2004.581567][ C1] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 2004.581570][ C1] __create_object (mm/kmemleak.c:770) 
[ 2004.581573][ C1] __kmalloc_node_track_caller_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4346) 
[ 2004.581578][ C1] ? alloc_vfsmnt (fs/namespace.c:359) 
[ 2004.581581][ C1] ? alloc_vfsmnt (fs/namespace.c:358) 
[ 2004.581585][ C1] kstrdup (mm/util.c:63 (discriminator 1) mm/util.c:83 (discriminator 1)) 
[ 2004.581591][ C1] alloc_vfsmnt (fs/namespace.c:359) 
[ 2004.581595][ C1] clone_mnt (fs/namespace.c:1354) 
[ 2004.581599][ C1] copy_tree (fs/namespace.c:2310) 
[ 2004.581605][ C1] copy_mnt_ns (fs/namespace.c:4322) 
[ 2004.581609][ C1] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 2004.581612][ C1] ? kmem_cache_alloc_noprof (mm/slub.c:4209) 
[ 2004.581616][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 2004.581620][ C1] create_new_namespaces (kernel/nsproxy.c:78) 
[ 2004.581626][ C1] unshare_nsproxy_namespaces (kernel/nsproxy.c:228 (discriminator 4)) 
[ 2004.581629][ C1] ksys_unshare (kernel/fork.c:3375) 
[ 2004.581633][ C1] ? __pfx_ksys_unshare (kernel/fork.c:3326) 
[ 2004.581636][ C1] ? fput_close_sync (fs/file_table.c:568) 
[ 2004.581642][ C1] ? __pfx_fput_close_sync (fs/file_table.c:568) 
[ 2004.581646][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 2004.581650][ C1] __x64_sys_unshare (kernel/fork.c:3444) 
[ 2004.581653][ C1] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 2004.581658][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 2004.581660][    C1] RIP: 0033:0x7efefbd9793b
[ 2004.581664][ C1] Code: 73 01 c3 48 8b 0d c5 94 1b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 95 94 1b 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d c5 94 1b 00 	mov    0x1b94c5(%rip),%rcx        # 0x1b94cf
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%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 95 94 1b 00 	mov    0x1b9495(%rip),%rcx        # 0x1b94cf
  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 95 94 1b 00 	mov    0x1b9495(%rip),%rcx        # 0x1b94a5
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[ 2004.581666][    C1] RSP: 002b:00007ffc2e7bd2f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 2004.581669][    C1] RAX: ffffffffffffffda RBX: 0000000000487003 RCX: 00007efefbd9793b
[ 2004.581671][    C1] RDX: 0000000000000000 RSI: 0000000040000000 RDI: 0000000000020000
[ 2004.581672][    C1] RBP: 0000000000000007 R08: 0000000000000000 R09: 00007ffc2e7bd190
[ 2004.581674][    C1] R10: 00007efefbd6cf18 R11: 0000000000000202 R12: 00007ffc2e7c1945
[ 2004.581675][    C1] R13: 00007ffc2e7c193a R14: 00007ffc2e7c193a R15: 0000000000000000
| [ 2037.348297][    C3] INFO: lockdep is turned off.
| [ 2037.348483][    C3] Preemption disabled at:
| [ 2037.348485][ C3] 0x0 
| [ 2037.348829][    C3] Tainted: [W]=WARN
[ 2037.348830][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2037.348832][    C3] Call Trace:
[ 2037.348834][    C3]  <IRQ>
[ 2037.348836][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 2037.348844][ C3] __might_resched (kernel/sched/core.c:8819) 
[ 2037.348853][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 2037.348858][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 2037.348861][ C3] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 2037.348866][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 2037.348872][ 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) 
[ 2037.348876][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 2037.348879][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 2037.348884][ 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) 
[ 2037.348889][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 2037.348892][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 2037.348896][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 2037.348902][ 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) 
[ 2037.348905][ C3] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 2037.348910][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 2037.348912][ C3] ? handle_softirqs (kernel/softirq.c:579) 
[ 2037.348917][ C3] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 2037.348920][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 2037.348923][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 2037.348927][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 2037.348931][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 2037.348933][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 2037.348936][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 2037.348939][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 2037.348945][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 2037.348947][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 2037.348950][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 2037.348954][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 2037.348959][ C3] __put_net (net/core/net_namespace.c:732) 
[ 2037.348963][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 2037.348966][ C3] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 2037.348972][ C3] call_timer_fn (kernel/time/timer.c:1789) 
[ 2037.348975][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 2037.348977][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 2037.348980][ C3] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 2037.348983][ C3] ? perf_event_task_tick (kernel/events/core.c:4455) 
[ 2037.348990][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 2037.348994][ C3] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 2037.348997][ C3] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 2037.349002][ C3] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 2037.349005][ C3] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 2037.349009][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 2037.349013][ C3] ? 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) 
[ 2037.349015][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 2037.349018][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 2037.349021][ C3] ? run_timer_base (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 2037.349026][ C3] run_timer_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 2037.349029][ C3] run_timer_softirq (kernel/time/timer.c:2446) 
[ 2037.349032][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 2037.349037][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 2037.349041][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 2037.349044][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 2037.349047][    C3]  </IRQ>
[ 2037.349048][    C3]  <TASK>
[ 2037.349050][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 2037.349052][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 2037.349056][ C3] Code: bf d3 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 40 26 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	bf d3 00 c3 cc       	mov    $0xccc300d3,%edi
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  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 40 26 00 	verw   0x264083(%rip)        # 0x2640ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[ 2037.349059][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[ 2037.349062][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffff9c02ea39
[ 2037.349064][    C3] RDX: ffffed100d9f667b RSI: ffffffff9c4538c0 RDI: ffffffff99591b5f
[ 2037.349066][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed100d9f667a
[ 2037.349068][    C3] R10: ffff88806cfb33d3 R11: ffff888001b04b58 R12: 0000000000000000
[ 2037.349071][    C3] R13: ffff888001b1c640 R14: dffffc0000000000 R15: 0000000000000000
[ 2037.349074][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 2037.349078][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 2037.349082][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 2037.349085][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 2037.349089][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 2037.349092][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 2037.349096][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 2037.349102][ C3] do_idle (kernel/sched/idle.c:325) 
[ 2037.349106][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 2037.349109][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 2037.349113][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 2037.349118][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 3790.436602][    C2] INFO: lockdep is turned off.
| [ 3790.436796][    C2] Preemption disabled at:
| [ 3790.436798][ C2] 0x0 
| [ 3790.437161][    C2] Tainted: [W]=WARN
[ 3790.437163][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3790.437164][    C2] Call Trace:
[ 3790.437167][    C2]  <IRQ>
[ 3790.437169][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 3790.437177][ C2] __might_resched (kernel/sched/core.c:8819) 
[ 3790.437185][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 3790.437190][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 3790.437194][ C2] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 3790.437198][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3790.437203][ 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) 
[ 3790.437208][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 3790.437211][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 3790.437216][ 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) 
[ 3790.437220][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 3790.437224][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 3790.437227][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 3790.437232][ 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) 
[ 3790.437236][ C2] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 3790.437240][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 3790.437242][ C2] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 3790.437247][ C2] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 3790.437249][ C2] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 3790.437252][ C2] ? handle_softirqs (kernel/softirq.c:579) 
[ 3790.437257][ C2] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3790.437261][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 3790.437264][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3790.437268][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3790.437272][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 3790.437274][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 3790.437277][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 3790.437280][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 3790.437284][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3790.437289][ C2] __put_net (net/core/net_namespace.c:732) 
[ 3790.437293][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 3790.437296][ C2] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3790.437301][ C2] call_timer_fn (kernel/time/timer.c:1789) 
[ 3790.437304][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3790.437306][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3790.437309][ C2] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 3790.437315][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3790.437319][ C2] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 3790.437323][ C2] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3790.437328][ C2] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 3790.437332][ 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) 
[ 3790.437335][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3790.437338][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 3790.437341][ C2] ? timer_expire_remote (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 3790.437347][ C2] timer_expire_remote (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 3790.437350][ C2] tmigr_handle_remote_cpu (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/time/timer_migration.c:961) 
[ 3790.437353][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3790.437356][ C2] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 3790.437359][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 3790.437362][ C2] ? __pfx_run_posix_cpu_timers (kernel/time/posix-cpu-timers.c:1403) 
[ 3790.437369][ 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) 
[ 3790.437372][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3790.437375][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3790.437379][ C2] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 3790.437383][ C2] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 3790.437387][ C2] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 3790.437390][ C2] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 3790.437393][ C2] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 3790.437396][ C2] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:95 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) 
[ 3790.437400][ C2] ? ktime_get (kernel/time/timekeeping.c:226 (discriminator 4) kernel/time/timekeeping.c:335 (discriminator 4) kernel/time/timekeeping.c:752 (discriminator 4)) 
[ 3790.437406][ C2] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 3790.437412][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 3790.437417][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3790.437421][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 3790.437424][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3790.437427][    C2]  </IRQ>
[ 3790.437428][    C2]  <TASK>
[ 3790.437429][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3790.437432][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 3790.437436][ C2] Code: bf d3 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 40 26 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	bf d3 00 c3 cc       	mov    $0xccc300d3,%edi
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  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 40 26 00 	verw   0x264083(%rip)        # 0x2640ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[ 3790.437438][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[ 3790.437442][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffff9c02ea39
[ 3790.437444][    C2] RDX: ffffed100d9e667b RSI: ffffffff9c4538c0 RDI: ffffffff99591b5f
[ 3790.437446][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed100d9e667a
[ 3790.437447][    C2] R10: ffff88806cf333d3 R11: ffffffffa01ba408 R12: 0000000000000000
[ 3790.437449][    C2] R13: ffff888001b1a340 R14: dffffc0000000000 R15: 0000000000000000
[ 3790.437453][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 3790.437456][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3790.437462][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 3790.437464][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 3790.437468][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3790.437471][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 3790.437475][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 3790.437481][ C2] do_idle (kernel/sched/idle.c:325) 
[ 3790.437485][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 3790.437488][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 3790.437492][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 3790.437497][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 3806.821069][    C0] INFO: lockdep is turned off.
| [ 3806.821383][    C0] Preemption disabled at:
| [ 3806.821386][ C0] schedule_preempt_disabled (kernel/sched/core.c:6919) 
| [ 3806.822110][    C0] Tainted: [W]=WARN
[ 3806.822112][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3806.822115][    C0] Call Trace:
[ 3806.822118][    C0]  <IRQ>
[ 3806.822121][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 3806.822128][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 3806.822141][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 3806.822148][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 3806.822154][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 3806.822161][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3806.822169][ 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) 
[ 3806.822175][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 3806.822179][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 3806.822184][ 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) 
[ 3806.822189][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 3806.822192][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 3806.822196][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 3806.822201][ C0] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 3806.822204][ C0] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 3806.822209][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 3806.822211][ C0] ? handle_softirqs (kernel/softirq.c:579) 
[ 3806.822216][ C0] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3806.822219][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 3806.822222][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3806.822226][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3806.822230][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 3806.822232][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 3806.822236][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 3806.822239][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3806.822243][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 3806.822245][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 3806.822248][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 3806.822252][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3806.822257][ C0] __put_net (net/core/net_namespace.c:732) 
[ 3806.822261][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 3806.822264][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3806.822269][ C0] call_timer_fn (kernel/time/timer.c:1789) 
[ 3806.822272][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3806.822274][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3806.822277][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 3806.822280][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3806.822285][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3806.822290][ C0] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 3806.822293][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3806.822298][ C0] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 3806.822301][ C0] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 3806.822305][ C0] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 3806.822308][ C0] ? 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) 
[ 3806.822311][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3806.822314][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 3806.822316][ C0] ? run_timer_base (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 3806.822321][ C0] run_timer_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 3806.822324][ C0] run_timer_softirq (kernel/time/timer.c:2446) 
[ 3806.822327][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 3806.822333][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3806.822336][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 3806.822339][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3806.822342][    C0]  </IRQ>
[ 3806.822343][    C0]  <TASK>
[ 3806.822344][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3806.822347][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 3806.822351][ C0] Code: bf d3 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 40 26 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	bf d3 00 c3 cc       	mov    $0xccc300d3,%edi
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  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 40 26 00 	verw   0x264083(%rip)        # 0x2640ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[ 3806.822354][    C0] RSP: 0018:ffffffff9d407df8 EFLAGS: 00000246
[ 3806.822357][    C0] RAX: 0000000000000000 RBX: 1ffffffff3a80fc3 RCX: ffffffff9c02ea39
[ 3806.822359][    C0] RDX: ffffed100d9c667b RSI: ffffffff9c4538c0 RDI: ffffffff99591b5f
[ 3806.822361][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed100d9c667a
[ 3806.822363][    C0] R10: ffff88806ce333d3 R11: ffffffffa01f8ac0 R12: 0000000000000000
[ 3806.822365][    C0] R13: ffffffff9d433240 R14: dffffc0000000000 R15: 0000000000014770
[ 3806.822369][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 3806.822373][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3806.822377][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 3806.822380][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 3806.822383][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3806.822386][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 3806.822390][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 3806.822396][ C0] do_idle (kernel/sched/idle.c:325) 
[ 3806.822399][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 3806.822403][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 3806.822407][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 3806.822414][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 3806.822419][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 3806.822422][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 3810.916262][    C1] INFO: lockdep is turned off.
| [ 3810.916432][    C1] Preemption disabled at:
| [ 3810.916433][ C1] 0x0 
| [ 3810.916742][    C1] Tainted: [W]=WARN
[ 3810.916743][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3810.916745][    C1] Call Trace:
[ 3810.916747][    C1]  <IRQ>
[ 3810.916749][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 3810.916757][ C1] __might_resched (kernel/sched/core.c:8819) 
[ 3810.916765][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 3810.916770][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 3810.916773][ C1] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 3810.916778][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3810.916784][ 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) 
[ 3810.916789][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 3810.916792][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 3810.916797][ 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) 
[ 3810.916801][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 3810.916804][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 3810.916808][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 3810.916813][ 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:2333) 
[ 3810.916817][ C1] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 3810.916821][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 3810.916824][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 3810.916828][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3810.916831][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 3810.916834][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3810.916838][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3810.916842][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 3810.916844][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 3810.916848][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 3810.916851][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3810.916855][ C1] ? do_idle (kernel/sched/idle.c:325) 
[ 3810.916858][ C1] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 3810.916861][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 3810.916864][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3810.916869][ C1] __put_net (net/core/net_namespace.c:732) 
[ 3810.916873][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 3810.916876][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3810.916882][ C1] call_timer_fn (kernel/time/timer.c:1789) 
[ 3810.916885][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3810.916887][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3810.916890][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 3810.916893][ 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) 
[ 3810.916898][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3810.916902][ C1] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 3810.916905][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3810.916910][ C1] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 3810.916915][ C1] ? 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) 
[ 3810.916918][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3810.916920][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 3810.916925][ C1] ? run_timer_base (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 3810.916929][ C1] run_timer_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 3810.916933][ C1] run_timer_softirq (kernel/time/timer.c:2446) 
[ 3810.916935][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 3810.916941][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3810.916944][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 3810.916947][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3810.916950][    C1]  </IRQ>
[ 3810.916951][    C1]  <TASK>
[ 3810.916953][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3810.916955][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 3810.916959][ C1] Code: bf d3 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 40 26 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	bf d3 00 c3 cc       	mov    $0xccc300d3,%edi
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  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 40 26 00 	verw   0x264083(%rip)        # 0x2640ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[ 3810.916962][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[ 3810.916965][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffff9c02ea39
[ 3810.916967][    C1] RDX: ffffed100d9d667b RSI: ffffffff9c4538c0 RDI: ffffffff99591b5f
[ 3810.916969][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed100d9d667a
[ 3810.916971][    C1] R10: ffff88806ceb33d3 R11: ffff888011802858 R12: 0000000000000000
[ 3810.916973][    C1] R13: ffff888001b18040 R14: dffffc0000000000 R15: 0000000000000000
[ 3810.916976][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 3810.916980][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3810.916984][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 3810.916987][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 3810.916990][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3810.916994][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 3810.916998][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 3810.917003][ C1] do_idle (kernel/sched/idle.c:325) 
[ 3810.917007][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 3810.917010][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 3810.917014][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 3810.917019][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 3839.589074][    C0] INFO: lockdep is turned off.
| [ 3839.589392][    C0] Preemption disabled at:
| [ 3839.589395][ C0] schedule_preempt_disabled (kernel/sched/core.c:6919) 
| [ 3839.590081][    C0] Tainted: [W]=WARN
[ 3839.590084][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3839.590087][    C0] Call Trace:
[ 3839.590089][    C0]  <IRQ>
[ 3839.590092][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 3839.590102][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 3839.590114][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 3839.590121][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 3839.590127][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 3839.590134][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3839.590142][ 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) 
[ 3839.590150][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 3839.590155][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 3839.590162][ 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) 
[ 3839.590168][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 3839.590172][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 3839.590176][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 3839.590181][ C0] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 3839.590184][ C0] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 3839.590189][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 3839.590191][ C0] ? handle_softirqs (kernel/softirq.c:579) 
[ 3839.590197][ C0] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3839.590200][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 3839.590203][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3839.590207][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3839.590211][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 3839.590214][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 3839.590217][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 3839.590220][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3839.590224][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 3839.590227][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 3839.590230][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 3839.590233][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3839.590238][ C0] __put_net (net/core/net_namespace.c:732) 
[ 3839.590242][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 3839.590245][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3839.590251][ C0] call_timer_fn (kernel/time/timer.c:1789) 
[ 3839.590254][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3839.590256][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3839.590259][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 3839.590262][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3839.590267][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3839.590272][ C0] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 3839.590275][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3839.590280][ C0] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 3839.590284][ C0] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 3839.590287][ C0] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 3839.590291][ C0] ? 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) 
[ 3839.590294][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3839.590296][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 3839.590299][ C0] ? run_timer_base (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 3839.590304][ C0] run_timer_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 3839.590307][ C0] run_timer_softirq (kernel/time/timer.c:2446) 
[ 3839.590310][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 3839.590315][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3839.590319][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 3839.590322][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3839.590325][    C0]  </IRQ>
[ 3839.590326][    C0]  <TASK>
[ 3839.590328][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3839.590330][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 3839.590334][ C0] Code: bf d3 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 40 26 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	bf d3 00 c3 cc       	mov    $0xccc300d3,%edi
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  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 40 26 00 	verw   0x264083(%rip)        # 0x2640ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[ 3839.590337][    C0] RSP: 0018:ffffffff9d407df8 EFLAGS: 00000246
[ 3839.590340][    C0] RAX: 0000000000000000 RBX: 1ffffffff3a80fc3 RCX: ffffffff9c02ea39
[ 3839.590342][    C0] RDX: ffffed100d9c667b RSI: ffffffff9c4538c0 RDI: ffffffff99591b5f
[ 3839.590344][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed100d9c667a
[ 3839.590345][    C0] R10: ffff88806ce333d3 R11: ffff88806ce28870 R12: 0000000000000000
[ 3839.590347][    C0] R13: ffffffff9d433240 R14: dffffc0000000000 R15: 0000000000014770
[ 3839.590351][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 3839.590355][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3839.590359][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 3839.590362][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 3839.590365][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3839.590368][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 3839.590372][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 3839.590377][ C0] do_idle (kernel/sched/idle.c:325) 
[ 3839.590381][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 3839.590385][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 3839.590388][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 3839.590395][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 3839.590399][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 3839.590402][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 3851.876221][    C3] INFO: lockdep is turned off.
| [ 3851.876393][    C3] Preemption disabled at:
| [ 3851.876394][ C3] 0x0 
| [ 3851.876720][    C3] Tainted: [W]=WARN
[ 3851.876722][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3851.876724][    C3] Call Trace:
[ 3851.876725][    C3]  <IRQ>
[ 3851.876727][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 3851.876735][ C3] __might_resched (kernel/sched/core.c:8819) 
[ 3851.876743][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 3851.876748][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 3851.876751][ C3] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 3851.876756][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3851.876761][ 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) 
[ 3851.876766][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 3851.876769][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 3851.876774][ 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) 
[ 3851.876778][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 3851.876782][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 3851.876786][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 3851.876790][ 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) 
[ 3851.876794][ C3] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 3851.876798][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 3851.876801][ C3] ? handle_softirqs (kernel/softirq.c:579) 
[ 3851.876807][ C3] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3851.876810][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 3851.876813][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3851.876817][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3851.876821][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 3851.876824][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 3851.876827][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 3851.876830][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3851.876834][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 3851.876837][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 3851.876840][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 3851.876843][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3851.876848][ C3] __put_net (net/core/net_namespace.c:732) 
[ 3851.876852][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 3851.876856][ C3] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3851.876861][ C3] call_timer_fn (kernel/time/timer.c:1789) 
[ 3851.876864][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3851.876866][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3851.876869][ C3] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 3851.876872][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3851.876877][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3851.876882][ C3] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 3851.876885][ C3] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3851.876890][ C3] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 3851.876894][ C3] ? 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) 
[ 3851.876897][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3851.876900][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 3851.876903][ C3] ? run_timer_base (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 3851.876908][ C3] run_timer_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 3851.876911][ C3] run_timer_softirq (kernel/time/timer.c:2446) 
[ 3851.876914][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 3851.876920][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3851.876923][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 3851.876926][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3851.876929][    C3]  </IRQ>
[ 3851.876930][    C3]  <TASK>
[ 3851.876931][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3851.876934][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 3851.876938][ C3] Code: bf d3 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 40 26 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	bf d3 00 c3 cc       	mov    $0xccc300d3,%edi
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  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 40 26 00 	verw   0x264083(%rip)        # 0x2640ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[ 3851.876940][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[ 3851.876944][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffff9c02ea39
[ 3851.876946][    C3] RDX: ffffed100d9f667b RSI: ffffffff9c4538c0 RDI: ffffffff99591b5f
[ 3851.876947][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed100d9f667a
[ 3851.876949][    C3] R10: ffff88806cfb33d3 R11: ffff888001b04b58 R12: 0000000000000000
[ 3851.876951][    C3] R13: ffff888001b1c640 R14: dffffc0000000000 R15: 0000000000000000
[ 3851.876954][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 3851.876958][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3851.876962][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 3851.876965][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 3851.876968][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3851.876972][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 3851.876976][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 3851.876981][ C3] do_idle (kernel/sched/idle.c:325) 
[ 3851.876985][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 3851.876988][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 3851.876992][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 3851.876997][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 3917.412975][    C2] INFO: lockdep is turned off.
| [ 3917.413217][    C2] Preemption disabled at:
| [ 3917.413219][ C2] handle_softirqs (kernel/softirq.c:553) 
| [ 3917.413893][    C2] Tainted: [W]=WARN
[ 3917.413895][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3917.413898][    C2] Call Trace:
[ 3917.413901][    C2]  <IRQ>
[ 3917.413904][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 3917.413914][ C2] __might_resched (kernel/sched/core.c:8819) 
[ 3917.413926][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 3917.413933][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 3917.413939][ C2] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 3917.413946][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3917.413954][ 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) 
[ 3917.413961][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 3917.413966][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 3917.413974][ 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) 
[ 3917.413981][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 3917.413987][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 3917.413993][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 3917.414001][ 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) 
[ 3917.414006][ C2] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 3917.414013][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 3917.414017][ C2] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 3917.414023][ C2] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 3917.414028][ C2] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 3917.414032][ C2] ? handle_softirqs (kernel/softirq.c:579) 
[ 3917.414039][ C2] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3917.414044][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 3917.414049][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3917.414054][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3917.414060][ C2] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:365) 
[ 3917.414067][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 3917.414075][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 3917.414081][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 3917.414087][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3917.414095][ C2] __put_net (net/core/net_namespace.c:732) 
[ 3917.414102][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 3917.414107][ C2] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3917.414115][ C2] call_timer_fn (kernel/time/timer.c:1789) 
[ 3917.414120][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3917.414125][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3917.414131][ C2] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 3917.414140][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3917.414149][ C2] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 3917.414154][ C2] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3917.414163][ C2] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3917.414169][ C2] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 3917.414174][ C2] ? rcu_is_watching (kernel/rcu/tree.c:737) 
[ 3917.414179][ C2] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 3917.414186][ 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) 
[ 3917.414191][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3917.414197][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 3917.414201][ C2] ? timer_expire_remote (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 3917.414211][ C2] timer_expire_remote (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 3917.414217][ C2] tmigr_handle_remote_cpu (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/time/timer_migration.c:961) 
[ 3917.414222][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3917.414228][ C2] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 3917.414233][ C2] ? __pfx_debug_object_activate (lib/debugobjects.c:805) 
[ 3917.414241][ C2] ? __pfx_run_posix_cpu_timers (kernel/time/posix-cpu-timers.c:1403) 
[ 3917.414248][ 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) 
[ 3917.414253][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3917.414259][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3917.414267][ C2] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 3917.414274][ C2] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 3917.414281][ C2] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 3917.414288][ C2] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 3917.414294][ C2] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 3917.414299][ C2] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:95 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) 
[ 3917.414303][ C2] ? ktime_get (kernel/time/timekeeping.c:226 (discriminator 4) kernel/time/timekeeping.c:335 (discriminator 4) kernel/time/timekeeping.c:752 (discriminator 4)) 
[ 3917.414311][ C2] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 3917.414323][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 3917.414333][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3917.414339][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 3917.414345][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3917.414351][    C2]  </IRQ>
[ 3917.414353][    C2]  <TASK>
[ 3917.414355][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3917.414360][ C2] RIP: 0010:unwind_get_return_address (arch/x86/kernel/unwind_orc.c:365) 
[ 3917.414367][ C2] Code: e8 f1 b7 90 00 eb a8 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 55 48 c1 ea
All code
========
   0:	e8 f1 b7 90 00       	call   0x90b7f6
   5:	eb a8                	jmp    0xffffffffffffffaf
   7:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
   e:	00 00 00 00 
  12:	0f 1f 40 00          	nopl   0x0(%rax)
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	90                   	nop
  23:	90                   	nop
  24:	90                   	nop
  25:	90                   	nop
  26:	f3 0f 1e fa          	endbr64
  2a:*	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)		<-- trapping instruction
  2f:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  36:	fc ff df 
  39:	48 89 fa             	mov    %rdi,%rdx
  3c:	55                   	push   %rbp
  3d:	48                   	rex.W
  3e:	c1                   	.byte 0xc1
  3f:	ea                   	(bad)

Code starting with the faulting instruction
===========================================
   0:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   5:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   c:	fc ff df 
   f:	48 89 fa             	mov    %rdi,%rdx
  12:	55                   	push   %rbp
  13:	48                   	rex.W
  14:	c1                   	.byte 0xc1
  15:	ea                   	(bad)
[ 3917.414371][    C2] RSP: 0018:ffffc90000557750 EFLAGS: 00000202
[ 3917.414377][    C2] RAX: 0000000000000001 RBX: ffffffff996ca0e0 RCX: ffffc90000558001
[ 3917.414381][    C2] RDX: 0000000000000000 RSI: ffffffff9c4538c0 RDI: ffffc90000557758
[ 3917.414384][    C2] RBP: ffffc900005577f0 R08: 0000000000000000 R09: ffffc90000557799
[ 3917.414387][    C2] R10: ffffffff99416397 R11: ffffc90000557798 R12: ffffc90000557820
[ 3917.414391][    C2] R13: 0000000000000000 R14: ffff88800ace2340 R15: 0000000000092cc0
[ 3917.414396][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 3917.414401][ 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) 
[ 3917.414412][ C2] arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 3917.414420][ C2] ? ksys_unshare (kernel/fork.c:3375) 
[ 3917.414428][ C2] stack_trace_save (kernel/stacktrace.c:123) 
[ 3917.414434][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 3917.414441][ C2] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/bpf/core.c:774) 
[ 3917.414446][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3917.414453][ C2] kasan_save_stack (mm/kasan/common.c:48) 
[ 3917.414461][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 3917.414467][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 3917.414470][ C2] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 3917.414475][ C2] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 3917.414481][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 3917.414486][ C2] ? __create_object (mm/kmemleak.c:770) 
[ 3917.414490][ C2] ? __kmalloc_node_track_caller_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4346) 
[ 3917.414497][ C2] ? kstrdup (mm/util.c:63 (discriminator 1) mm/util.c:83 (discriminator 1)) 
[ 3917.414502][ C2] ? alloc_vfsmnt (fs/namespace.c:359) 
[ 3917.414509][ C2] ? clone_mnt (fs/namespace.c:1354) 
[ 3917.414513][ C2] ? copy_tree (fs/namespace.c:2310) 
[ 3917.414518][ C2] ? copy_mnt_ns (fs/namespace.c:4322) 
[ 3917.414523][ C2] ? create_new_namespaces (kernel/nsproxy.c:78) 
[ 3917.414528][ C2] ? unshare_nsproxy_namespaces (kernel/nsproxy.c:228 (discriminator 4)) 
[ 3917.414537][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3917.414543][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 3917.414550][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 3917.414556][ C2] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 3917.414566][ C2] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 3917.414572][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 3917.414579][ C2] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 3917.414583][ C2] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 3917.414589][ C2] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 3917.414595][ C2] ? alloc_vfsmnt (fs/namespace.c:359) 
[ 3917.414603][ C2] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 3917.414609][ C2] __create_object (mm/kmemleak.c:770) 
[ 3917.414615][ C2] __kmalloc_node_track_caller_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4346) 
[ 3917.414623][ C2] ? alloc_vfsmnt (fs/namespace.c:359) 
[ 3917.414629][ C2] ? alloc_vfsmnt (fs/namespace.c:358) 
[ 3917.414637][ C2] kstrdup (mm/util.c:63 (discriminator 1) mm/util.c:83 (discriminator 1)) 
[ 3917.414643][ C2] alloc_vfsmnt (fs/namespace.c:359) 
[ 3917.414650][ C2] clone_mnt (fs/namespace.c:1354) 
[ 3917.414657][ C2] copy_tree (fs/namespace.c:2310) 
[ 3917.414667][ C2] copy_mnt_ns (fs/namespace.c:4322) 
[ 3917.414673][ C2] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 3917.414679][ C2] ? kmem_cache_alloc_noprof (mm/slub.c:4209) 
[ 3917.414684][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3917.414692][ C2] create_new_namespaces (kernel/nsproxy.c:78) 
[ 3917.414701][ C2] unshare_nsproxy_namespaces (kernel/nsproxy.c:228 (discriminator 4)) 
[ 3917.414707][ C2] ksys_unshare (kernel/fork.c:3375) 
[ 3917.414712][ C2] ? __pfx_ksys_unshare (kernel/fork.c:3326) 
[ 3917.414717][ C2] ? fput_close_sync (fs/file_table.c:568) 
[ 3917.414726][ C2] ? __pfx_fput_close_sync (fs/file_table.c:568) 
[ 3917.414733][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3917.414741][ C2] __x64_sys_unshare (kernel/fork.c:3444) 
[ 3917.414746][ C2] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 3917.414754][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 3917.414759][    C2] RIP: 0033:0x7fd8449c793b
[ 3917.414764][ C2] Code: 73 01 c3 48 8b 0d c5 94 1b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 95 94 1b 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d c5 94 1b 00 	mov    0x1b94c5(%rip),%rcx        # 0x1b94cf
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%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 95 94 1b 00 	mov    0x1b9495(%rip),%rcx        # 0x1b94cf
  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 95 94 1b 00 	mov    0x1b9495(%rip),%rcx        # 0x1b94a5
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[ 3917.414768][    C2] RSP: 002b:00007ffe943168d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[ 3917.414772][    C2] RAX: ffffffffffffffda RBX: 0000000000487003 RCX: 00007fd8449c793b
[ 3917.414776][    C2] RDX: 0000000000000000 RSI: 0000000040000000 RDI: 0000000000020000
[ 3917.414779][    C2] RBP: 0000000000000005 R08: 0000000000000000 R09: 00007ffe94316770
[ 3917.414782][    C2] R10: 00007fd84499cf18 R11: 0000000000000206 R12: 00007ffe9431a947
[ 3917.414785][    C2] R13: 00007ffe9431a94e R14: 00007ffe9431a944 R15: 0000000000000000
| [ 3933.796412][    C1] INFO: lockdep is turned off.
| [ 3933.796625][    C1] Preemption disabled at:
| [ 3933.796627][ C1] 0x0 
| [ 3933.797006][    C1] Tainted: [W]=WARN
[ 3933.797007][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3933.797010][    C1] Call Trace:
[ 3933.797012][    C1]  <IRQ>
[ 3933.797014][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 3933.797024][ C1] __might_resched (kernel/sched/core.c:8819) 
[ 3933.797036][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 3933.797042][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 3933.797045][ C1] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 3933.797051][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3933.797058][ 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) 
[ 3933.797063][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 3933.797066][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 3933.797075][ 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) 
[ 3933.797079][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 3933.797082][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 3933.797087][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 3933.797093][ 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:2333) 
[ 3933.797098][ C1] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 3933.797104][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 3933.797106][ C1] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 3933.797112][ C1] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 3933.797115][ C1] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 3933.797118][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 3933.797125][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3933.797128][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 3933.797131][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3933.797135][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3933.797140][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 3933.797145][ C1] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 3933.797150][ C1] ? set_track_prepare (mm/slub.c:936) 
[ 3933.797154][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 3933.797159][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3933.797164][ C1] __put_net (net/core/net_namespace.c:732) 
[ 3933.797169][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 3933.797172][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3933.797179][ C1] call_timer_fn (kernel/time/timer.c:1789) 
[ 3933.797182][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3933.797185][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3933.797188][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 3933.797193][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3933.797198][ C1] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 3933.797201][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3933.797206][ C1] ? __pfx___resched_curr (kernel/sched/core.c:1093) 
[ 3933.797211][ C1] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 3933.797215][ C1] ? 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) 
[ 3933.797218][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3933.797221][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 3933.797225][ C1] ? timer_expire_remote (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 3933.797231][ C1] timer_expire_remote (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 3933.797234][ C1] tmigr_handle_remote_cpu (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/time/timer_migration.c:961) 
[ 3933.797238][ C1] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 3933.797240][ C1] ? __pfx_debug_object_activate (lib/debugobjects.c:805) 
[ 3933.797246][ C1] ? __pfx_run_posix_cpu_timers (kernel/time/posix-cpu-timers.c:1403) 
[ 3933.797254][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3933.797258][ C1] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 3933.797262][ C1] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 3933.797266][ C1] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 3933.797270][ C1] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 3933.797273][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 3933.797276][ C1] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:95 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) 
[ 3933.797280][ C1] ? ktime_get (kernel/time/timekeeping.c:226 (discriminator 4) kernel/time/timekeeping.c:335 (discriminator 4) kernel/time/timekeeping.c:752 (discriminator 4)) 
[ 3933.797286][ C1] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 3933.797292][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 3933.797298][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3933.797301][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 3933.797305][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3933.797308][    C1]  </IRQ>
[ 3933.797309][    C1]  <TASK>
[ 3933.797311][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3933.797314][ C1] RIP: 0010:arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 3933.797318][ C1] Code: 8b 95 68 ff ff ff 85 d2 75 24 eb 36 4c 89 e7 ff d3 0f 1f 00 84 c0 74 2a 48 8d bd 68 ff ff ff e8 d5 62 07 00 8b 85 68 ff ff ff <85> c0 74 14 48 8d bd 68 ff ff ff e8 8f 5c 07 00 48 89 c6 48 85 c0
All code
========
   0:	8b 95 68 ff ff ff    	mov    -0x98(%rbp),%edx
   6:	85 d2                	test   %edx,%edx
   8:	75 24                	jne    0x2e
   a:	eb 36                	jmp    0x42
   c:	4c 89 e7             	mov    %r12,%rdi
   f:	ff d3                	call   *%rbx
  11:	0f 1f 00             	nopl   (%rax)
  14:	84 c0                	test   %al,%al
  16:	74 2a                	je     0x42
  18:	48 8d bd 68 ff ff ff 	lea    -0x98(%rbp),%rdi
  1f:	e8 d5 62 07 00       	call   0x762f9
  24:	8b 85 68 ff ff ff    	mov    -0x98(%rbp),%eax
  2a:*	85 c0                	test   %eax,%eax		<-- trapping instruction
  2c:	74 14                	je     0x42
  2e:	48 8d bd 68 ff ff ff 	lea    -0x98(%rbp),%rdi
  35:	e8 8f 5c 07 00       	call   0x75cc9
  3a:	48 89 c6             	mov    %rax,%rsi
  3d:	48 85 c0             	test   %rax,%rax

Code starting with the faulting instruction
===========================================
   0:	85 c0                	test   %eax,%eax
   2:	74 14                	je     0x18
   4:	48 8d bd 68 ff ff ff 	lea    -0x98(%rbp),%rdi
   b:	e8 8f 5c 07 00       	call   0x75c9f
  10:	48 89 c6             	mov    %rax,%rsi
  13:	48 85 c0             	test   %rax,%rax
[ 3933.797320][    C1] RSP: 0018:ffffc90003587620 EFLAGS: 00000286
[ 3933.797324][    C1] RAX: 0000000000000001 RBX: ffffffff996ca0e0 RCX: ffffc90003588001
[ 3933.797326][    C1] RDX: 0000000000000000 RSI: ffffffff9c4538c0 RDI: ffff88800bfca744
[ 3933.797328][    C1] RBP: ffffc900035876b8 R08: 0000000000000000 R09: ffffc90003587661
[ 3933.797330][    C1] R10: ffffffff99416397 R11: ffffc90003587660 R12: ffffc900035876e8
[ 3933.797331][    C1] R13: 0000000000000000 R14: ffff88800bfca340 R15: ffffffff9a65b09d
[ 3933.797333][ C1] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 3933.797339][ C1] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 3933.797342][ C1] ? 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) 
[ 3933.797349][ C1] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 3933.797353][ C1] stack_trace_save (kernel/stacktrace.c:123) 
[ 3933.797356][ C1] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 3933.797360][ C1] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 3933.797363][ C1] set_track_prepare (mm/slub.c:936) 
[ 3933.797365][ C1] ? __kmalloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4339) 
[ 3933.797369][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3933.797373][ C1] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 3933.797376][ C1] ? lockdep_init_map_type (kernel/locking/lockdep.c:4974) 
[ 3933.797381][ C1] __alloc_object (mm/kmemleak.c:697) 
[ 3933.797384][ C1] __create_object (mm/kmemleak.c:770) 
[ 3933.797388][ C1] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 3933.797390][ C1] __kmalloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4339) 
[ 3933.797393][ C1] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 3933.797399][ C1] virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 3933.797401][ C1] ? do_raw_spin_lock (./arch/x86/include/asm/current.h:25 kernel/locking/spinlock_debug.c:87 kernel/locking/spinlock_debug.c:115) 
[ 3933.797404][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3933.797408][ C1] ? __pfx_virtqueue_add_split (drivers/virtio/virtio_ring.c:538) 
[ 3933.797411][ C1] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 3933.797416][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3933.797419][ C1] ? sg_init_one (./include/linux/scatterlist.h:189 lib/scatterlist.c:144) 
[ 3933.797427][ C1] virtqueue_add_sgs (drivers/virtio/virtio_ring.c:2282 drivers/virtio/virtio_ring.c:2316) 
[ 3933.797432][ C1] virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1440) 
[ 3933.797440][ C1] ? __pfx_virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1376) 
[ 3933.797447][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3933.797451][ C1] ? 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) 
[ 3933.797454][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3933.797457][ C1] ? fuse_get_unique (fs/fuse/dev.c:317) 
[ 3933.797462][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3933.797465][ 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) 
[ 3933.797469][ C1] virtio_fs_send_req (fs/fuse/virtio_fs.c:1499) 
[ 3933.797472][ C1] ? fuse_send_one (fs/fuse/dev.c:400) 
[ 3933.797477][ C1] __fuse_simple_request (fs/fuse/dev.c:578 fs/fuse/dev.c:672) 
[ 3933.797481][ C1] fuse_file_put (fs/fuse/file.c:98 fs/fuse/file.c:115 fs/fuse/file.c:102) 
[ 3933.797486][ C1] fuse_release (fs/fuse/file.c:383) 
[ 3933.797490][ C1] __fput (fs/file_table.c:465) 
[ 3933.797496][ C1] task_work_run (kernel/task_work.c:227 (discriminator 1)) 
[ 3933.797502][ C1] ? __pfx_task_work_run (kernel/task_work.c:195) 
[ 3933.797505][ C1] ? kmem_cache_free (mm/slub.c:4642 mm/slub.c:4744) 
[ 3933.797508][ C1] ? refcount_dec_and_lock (lib/refcount.c:146) 
[ 3933.797512][ C1] ? do_exit (./include/linux/task_work.h:40 kernel/exit.c:953) 
[ 3933.797517][ C1] do_exit (kernel/exit.c:954) 
[ 3933.797520][ C1] do_group_exit (kernel/exit.c:1083) 
[ 3933.797524][ C1] __x64_sys_exit_group (kernel/exit.c:1111) 
[ 3933.797526][ C1] x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 3933.797531][ C1] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 3933.797536][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 3933.797538][    C1] RIP: 0033:0x7f161f334abd
[ 3933.797541][ C1] Code: Unable to access opcode bytes at 0x7f161f334a93.

Code starting with the faulting instruction
===========================================
[ 3933.797542][    C1] RSP: 002b:00007ffcc88f7d78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 3933.797545][    C1] RAX: ffffffffffffffda RBX: 00007f161f4119c0 RCX: 00007f161f334abd
[ 3933.797547][    C1] RDX: 00000000000000e7 RSI: fffffffffffffe90 RDI: 0000000000000000
[ 3933.797549][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000060
[ 3933.797550][    C1] R10: 00007ffcc88f7ba0 R11: 0000000000000246 R12: 00007f161f4119c0
[ 3933.797552][    C1] R13: 00007f161f416ee0 R14: 0000000000000001 R15: 00007f161f416ec8
| [ 3966.564377][    C1] INFO: lockdep is turned off.
| [ 3966.564567][    C1] Preemption disabled at:
| [ 3966.564569][ C1] 0x0 
| [ 3966.564910][    C1] Tainted: [W]=WARN
[ 3966.564911][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3966.564914][    C1] Call Trace:
[ 3966.564916][    C1]  <IRQ>
[ 3966.564919][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 3966.564928][ C1] __might_resched (kernel/sched/core.c:8819) 
[ 3966.564939][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 3966.564945][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 3966.564949][ C1] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 3966.564954][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3966.564961][ 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) 
[ 3966.564966][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 3966.564969][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 3966.564976][ 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) 
[ 3966.564980][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 3966.564984][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 3966.564989][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 3966.564994][ 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:2333) 
[ 3966.564999][ C1] ? call_timer_fn (kernel/time/timer.c:1789) 
[ 3966.565004][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 3966.565006][ C1] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 3966.565012][ C1] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 3966.565014][ C1] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 3966.565017][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 3966.565024][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3966.565027][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 3966.565030][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3966.565034][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3966.565040][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 3966.565042][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 3966.565046][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 3966.565049][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 3966.565054][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3966.565058][ C1] __put_net (net/core/net_namespace.c:732) 
[ 3966.565064][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 3966.565071][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3966.565077][ C1] call_timer_fn (kernel/time/timer.c:1789) 
[ 3966.565080][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3966.565083][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3966.565086][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 3966.565089][ C1] ? __pfx_sched_clock_cpu (kernel/sched/clock.c:389) 
[ 3966.565098][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3966.565102][ C1] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 3966.565105][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 3966.565111][ C1] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 3966.565115][ C1] ? 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) 
[ 3966.565118][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3966.565121][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 3966.565126][ C1] ? timer_expire_remote (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 3966.565131][ C1] timer_expire_remote (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 3966.565134][ C1] tmigr_handle_remote_cpu (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/time/timer_migration.c:961) 
[ 3966.565138][ C1] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 3966.565141][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 3966.565144][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 3966.565147][ C1] ? 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) 
[ 3966.565150][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3966.565153][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3966.565157][ C1] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 3966.565161][ C1] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 3966.565165][ C1] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 3966.565169][ C1] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 3966.565172][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 3966.565175][ C1] ? 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) 
[ 3966.565177][ C1] ? spin_bug (kernel/locking/spinlock_debug.c:64 kernel/locking/spinlock_debug.c:78) 
[ 3966.565180][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 3966.565184][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 3966.565188][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 3966.565194][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 3966.565197][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 3966.565200][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 3966.565203][    C1]  </IRQ>
[ 3966.565204][    C1]  <TASK>
[ 3966.565206][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 3966.565208][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 3966.565212][ C1] Code: bf d3 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 40 26 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	bf d3 00 c3 cc       	mov    $0xccc300d3,%edi
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  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 40 26 00 	verw   0x264083(%rip)        # 0x2640ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[ 3966.565215][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[ 3966.565219][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffff9c02ea39
[ 3966.565221][    C1] RDX: ffffed100d9d667b RSI: ffffffff9c4538c0 RDI: ffffffff99591b5f
[ 3966.565223][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed100d9d667a
[ 3966.565224][    C1] R10: ffff88806ceb33d3 R11: ffff88800a870558 R12: 0000000000000000
[ 3966.565226][    C1] R13: ffff888001b18040 R14: dffffc0000000000 R15: 0000000000000000
[ 3966.565230][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 3966.565234][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3966.565239][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 3966.565242][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 3966.565245][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 3966.565249][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 3966.565253][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 3966.565259][ C1] do_idle (kernel/sched/idle.c:325) 
[ 3966.565263][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 3966.565266][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 3966.565270][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 


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
schedule_preempt_disabled:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal
handle_softirqs:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal