======================================
| [ 439.604453][ C1] #0: ffffffffa219b5e0 (rcu_read_lock){....}-{1:3}, at: process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
| [ 439.604959][ C1] #1: ffffffffa219b5e0 (rcu_read_lock){....}-{1:3}, at: ip_local_deliver_finish (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 net/ipv4/ip_input.c:232) 
| [  439.605441][    C1]
| [  439.605441][    C1] stack backtrace:
[  439.605809][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  439.605812][    C1] Call Trace:
[  439.605815][    C1]  <IRQ>
[ 439.605819][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 439.605829][ C1] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 439.605836][ C1] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 439.605840][ C1] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 439.605846][ C1] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 439.605849][ C1] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 439.605857][ C1] mark_lock (kernel/locking/lockdep.c:4756) 
[ 439.605860][ C1] mark_usage (kernel/locking/lockdep.c:4645) 
[ 439.605863][ C1] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 439.605867][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 439.605871][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 439.605874][ C1] ? simple_pin_fs (fs/libfs.c:1067) 
[ 439.605882][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 439.605887][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 439.605889][ C1] ? simple_pin_fs (fs/libfs.c:1067) 
[ 439.605894][ C1] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 439.605897][ C1] ? simple_pin_fs (fs/libfs.c:1067) 
[ 439.605900][ C1] simple_pin_fs (fs/libfs.c:1067) 
[ 439.605904][ C1] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 439.605910][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 439.605918][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 439.605921][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 439.605927][ C1] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 439.605932][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 439.605935][ C1] ? ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 439.605939][ C1] ? ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 439.605943][ C1] ? ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 439.605946][ C1] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 439.605951][ C1] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 439.605955][ C1] ? __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 439.605958][ C1] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 439.605960][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 439.605964][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 439.605967][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 439.605970][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 439.605976][ C1] __put_net (net/core/net_namespace.c:732) 
[ 439.605982][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 439.605986][ C1] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 439.605991][ C1] icmp_unreach (net/ipv4/icmp.c:969) 
[ 439.605996][ C1] ? __skb_checksum_complete (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:170 ./include/linux/skbuff.h:2065 net/core/skbuff.c:3737) 
[ 439.606002][ C1] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 439.606007][ C1] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 439.606012][ C1] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 439.606016][ C1] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 439.606020][ C1] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 439.606025][ C1] ? ip_rcv_finish_core (./include/net/net_namespace.h:409 (discriminator 3) ./include/linux/netdevice.h:2713 (discriminator 3) net/ipv4/ip_input.c:372 (discriminator 3)) 
[ 439.606030][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 439.606033][ C1] ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 439.606037][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 439.606041][ C1] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 439.606043][ C1] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 439.606047][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 439.606051][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 439.606054][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 439.606058][ C1] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 439.606062][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 439.606066][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 439.606069][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 439.606071][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 439.606076][ C1] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 439.606082][ C1] __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 439.606084][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 439.606088][ C1] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 439.606094][ C1] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 439.606097][ C1] ? __qdisc_run (./include/linux/netdevice.h:2636 ./include/linux/netdevice.h:2643 net/sched/sch_generic.c:407 net/sched/sch_generic.c:417) 
[ 439.606103][ C1] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 439.606109][ C1] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 439.606112][ C1] ? net_tx_action (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev.c:5629) 
[ 439.606117][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 439.606122][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 439.606125][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 439.606127][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[  439.606130][    C1]  </IRQ>
[  439.606131][    C1]  <TASK>
[ 439.606133][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 439.606137][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 439.606142][ C1] Code: e2 c7 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 47 1f 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	e2 c7                	loop   0xffffffffffffffc9
   2:	00 c3                	add    %al,%bl
   4:	cc                   	int3
   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 47 1f 00 	verw   0x1f4783(%rip)        # 0x1f47ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[  439.606145][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[  439.606148][    C1] RAX: 00000000012179c5 RBX: 1ffff92000026fc1 RCX: ffffffffa109f5d9
[  439.606151][    C1] RDX: 0000000000000000 RSI: ffffffffa1cc1b9c RDI: ffffffffa1453c20
[  439.606152][    C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c166fa
[  439.606154][    C1] R10: ffff8880360b37d3 R11: ffffffffa1e11288 R12: 0000000000000000
[  439.606156][    C1] R13: ffff888001bf8040 R14: dffffc0000000000 R15: 0000000000000000
[ 439.606160][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 439.606165][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 439.606167][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 439.606170][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 439.606176][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 439.606179][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 439.606185][ C1] do_idle (kernel/sched/idle.c:325) 
[ 439.606189][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 439.606192][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 439.606195][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 439.606200][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [  439.639004][    C1] RCU nest depth: 2, expected: 0
| [  439.639198][    C1] INFO: lockdep is turned off.
| [  439.639397][    C1] Preemption disabled at:
| [ 439.639399][ C1] 0x0 
[  439.639904][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  439.639907][    C1] Call Trace:
[  439.639910][    C1]  <IRQ>
[ 439.639913][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 439.639926][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 439.639935][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 439.639941][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 439.639944][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 439.639950][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 439.639957][ 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) 
[ 439.639964][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 439.639966][ 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) 
[ 439.639970][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 439.639977][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 439.639980][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 439.639987][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 439.639990][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 439.639997][ C1] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 439.640002][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 439.640005][ C1] ? ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 439.640012][ C1] ? ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 439.640015][ C1] ? ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 439.640018][ C1] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 439.640024][ C1] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 439.640028][ C1] ? __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 439.640031][ C1] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 439.640033][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 439.640039][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 439.640041][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 439.640044][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 439.640050][ C1] __put_net (net/core/net_namespace.c:732) 
[ 439.640056][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 439.640060][ C1] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 439.640065][ C1] icmp_unreach (net/ipv4/icmp.c:969) 
[ 439.640070][ C1] ? __skb_checksum_complete (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:170 ./include/linux/skbuff.h:2065 net/core/skbuff.c:3737) 
[ 439.640076][ C1] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 439.640081][ C1] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 439.640086][ C1] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 439.640091][ C1] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 439.640094][ C1] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 439.640100][ C1] ? ip_rcv_finish_core (./include/net/net_namespace.h:409 (discriminator 3) ./include/linux/netdevice.h:2713 (discriminator 3) net/ipv4/ip_input.c:372 (discriminator 3)) 
[ 439.640105][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 439.640108][ C1] ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 439.640112][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 439.640116][ C1] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 439.640121][ C1] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 439.640125][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 439.640129][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 439.640133][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 439.640136][ C1] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 439.640140][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 439.640145][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 439.640148][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 439.640151][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 439.640155][ C1] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 439.640162][ C1] __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 439.640164][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 439.640168][ C1] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 439.640174][ C1] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 439.640176][ C1] ? __qdisc_run (./include/linux/netdevice.h:2636 ./include/linux/netdevice.h:2643 net/sched/sch_generic.c:407 net/sched/sch_generic.c:417) 
[ 439.640185][ C1] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 439.640192][ C1] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 439.640195][ C1] ? net_tx_action (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev.c:5629) 
[ 439.640200][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 439.640205][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 439.640208][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 439.640211][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[  439.640214][    C1]  </IRQ>
[  439.640215][    C1]  <TASK>
[ 439.640216][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 439.640221][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 439.640225][ C1] Code: e2 c7 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 47 1f 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	e2 c7                	loop   0xffffffffffffffc9
   2:	00 c3                	add    %al,%bl
   4:	cc                   	int3
   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 47 1f 00 	verw   0x1f4783(%rip)        # 0x1f47ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[  439.640228][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[  439.640232][    C1] RAX: 00000000012179c5 RBX: 1ffff92000026fc1 RCX: ffffffffa109f5d9
[  439.640234][    C1] RDX: 0000000000000000 RSI: ffffffffa1cc1b9c RDI: ffffffffa1453c20
[  439.640236][    C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c166fa
[  439.640237][    C1] R10: ffff8880360b37d3 R11: ffffffffa1e11288 R12: 0000000000000000
[  439.640239][    C1] R13: ffff888001bf8040 R14: dffffc0000000000 R15: 0000000000000000
[ 439.640243][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 439.640249][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 439.640252][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 439.640256][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 439.640261][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 439.640265][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 439.640271][ C1] do_idle (kernel/sched/idle.c:325) 
[ 439.640274][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 439.640277][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 439.640281][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 439.640285][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [  443.815040][    C2] INFO: lockdep is turned off.
| [  443.815274][    C2] Preemption disabled at:
| [ 443.815276][ C2] 0x0 
| [  443.815700][    C2] Tainted: [W]=WARN
[  443.815701][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  443.815704][    C2] Call Trace:
[  443.815706][    C2]  <IRQ>
[ 443.815709][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 443.815720][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 443.815730][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 443.815737][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 443.815740][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 443.815746][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 443.815752][ 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) 
[ 443.815758][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 443.815761][ 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) 
[ 443.815764][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 443.815771][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 443.815774][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 443.815782][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 443.815785][ C2] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 443.815792][ C2] ? call_timer_fn (kernel/time/timer.c:1748) 
[ 443.815796][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 443.815800][ C2] ? handle_softirqs (kernel/softirq.c:579) 
[ 443.815806][ C2] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 443.815808][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 443.815811][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 443.815815][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 443.815821][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 443.815823][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 443.815827][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 443.815830][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 443.815834][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 443.815836][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 443.815839][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 443.815844][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 443.815848][ C2] __put_net (net/core/net_namespace.c:732) 
[ 443.815854][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 443.815858][ C2] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 443.815864][ C2] call_timer_fn (kernel/time/timer.c:1748) 
[ 443.815867][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 443.815869][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 443.815871][ C2] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 443.815874][ C2] ? perf_event_task_tick (kernel/events/core.c:4501) 
[ 443.815881][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 443.815885][ C2] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372) 
[ 443.815889][ C2] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 443.815894][ C2] ? __pfx___run_timers (kernel/time/timer.c:2343) 
[ 443.815897][ C2] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 443.815903][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 443.815907][ 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) 
[ 443.815910][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 443.815914][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 443.815916][ C2] ? run_timer_base (kernel/time/timer.c:2384 kernel/time/timer.c:2376 kernel/time/timer.c:2393) 
[ 443.815921][ C2] run_timer_base (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2393) 
[ 443.815924][ C2] run_timer_softirq (kernel/time/timer.c:2404) 
[ 443.815926][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 443.815932][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 443.815934][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 443.815937][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[  443.815940][    C2]  </IRQ>
[  443.815941][    C2]  <TASK>
[ 443.815943][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 443.815945][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 443.815950][ C2] Code: e2 c7 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 47 1f 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	e2 c7                	loop   0xffffffffffffffc9
   2:	00 c3                	add    %al,%bl
   4:	cc                   	int3
   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 47 1f 00 	verw   0x1f4783(%rip)        # 0x1f47ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[  443.815952][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[  443.815956][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffffa109f5d9
[  443.815959][    C2] RDX: ffffed1006c266fb RSI: ffffffffa1453ba0 RDI: ffffffff9e79018f
[  443.815960][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c266fa
[  443.815962][    C2] R10: ffff8880361337d3 R11: ffff8880094bcad8 R12: 0000000000000000
[  443.815964][    C2] R13: ffff888001bfa300 R14: dffffc0000000000 R15: 0000000000000000
[ 443.815968][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 443.815972][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 443.815976][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 443.815978][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 443.815981][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 443.815984][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 443.815988][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 443.815993][ C2] do_idle (kernel/sched/idle.c:325) 
[ 443.815996][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 443.815999][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 443.816002][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 443.816007][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [  465.256507][    C2] INFO: lockdep is turned off.
| [  465.256716][    C2] Preemption disabled at:
| [ 465.256718][ C2] handle_softirqs (kernel/softirq.c:553) 
| [  465.257120][    C2] Tainted: [W]=WARN
[  465.257122][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  465.257124][    C2] Call Trace:
[  465.257126][    C2]  <TASK>
[ 465.257129][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 465.257140][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 465.257150][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 465.257156][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 465.257159][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 465.257165][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 465.257172][ 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) 
[ 465.257180][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 465.257182][ 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) 
[ 465.257186][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 465.257193][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 465.257196][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 465.257203][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 465.257207][ C2] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 465.257214][ C2] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 465.257219][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 465.257222][ C2] ? ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 465.257229][ C2] ? ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 465.257233][ C2] ? ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 465.257236][ C2] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 465.257242][ C2] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 465.257245][ C2] ? __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 465.257248][ C2] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 465.257250][ C2] ? handle_softirqs (kernel/softirq.c:579) 
[ 465.257253][ C2] ? run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 465.257256][ C2] ? smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 465.257260][ C2] ? kthread (kernel/kthread.c:464) 
[ 465.257265][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 465.257270][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 465.257274][ C2] __put_net (net/core/net_namespace.c:732) 
[ 465.257281][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 465.257285][ C2] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 465.257290][ C2] icmp_unreach (net/ipv4/icmp.c:969) 
[ 465.257295][ C2] ? __skb_checksum_complete (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:170 ./include/linux/skbuff.h:2065 net/core/skbuff.c:3737) 
[ 465.257301][ C2] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 465.257306][ C2] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 465.257311][ C2] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 465.257315][ C2] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 465.257319][ C2] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 465.257324][ C2] ? ip_fast_csum (lib/checksum.c:99) 
[ 465.257326][ C2] ? ip_rcv_finish_core (./include/net/net_namespace.h:409 (discriminator 3) ./include/linux/netdevice.h:2713 (discriminator 3) net/ipv4/ip_input.c:372 (discriminator 3)) 
[ 465.257331][ C2] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 465.257335][ C2] ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 465.257339][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 465.257346][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 465.257349][ C2] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 465.257352][ C2] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 465.257356][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 465.257361][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 465.257364][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 465.257366][ C2] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 465.257371][ C2] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 465.257377][ C2] __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 465.257379][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 465.257383][ C2] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 465.257386][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 465.257391][ C2] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 465.257393][ C2] ? trace_sched_exit_tp (./include/trace/events/sched.h:855 (discriminator 21)) 
[ 465.257397][ C2] ? __schedule (kernel/sched/core.c:6658) 
[ 465.257401][ C2] ? __pfx___schedule (kernel/sched/core.c:6658) 
[ 465.257404][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 465.257407][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 465.257414][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 465.257418][ C2] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 465.257421][ C2] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 465.257424][ C2] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 465.257427][ C2] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 465.257431][ C2] kthread (kernel/kthread.c:464) 
[ 465.257435][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 465.257438][ C2] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 465.257442][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 465.257445][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 465.257448][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 465.257452][ C2] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 465.257455][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 465.257458][ C2] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  491.752592][    C1] INFO: lockdep is turned off.
| [  491.752790][    C1] Preemption disabled at:
| [ 491.752792][ C1] 0x0 
| [  491.753142][    C1] Tainted: [W]=WARN
[  491.753144][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  491.753146][    C1] Call Trace:
[  491.753148][    C1]  <IRQ>
[ 491.753152][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 491.753161][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 491.753169][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 491.753174][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 491.753177][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 491.753181][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 491.753186][ 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) 
[ 491.753191][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 491.753194][ 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) 
[ 491.753197][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 491.753203][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 491.753206][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 491.753212][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 491.753215][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 491.753220][ C1] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 491.753225][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 491.753228][ C1] ? ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 491.753233][ C1] ? ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 491.753236][ C1] ? ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 491.753239][ C1] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 491.753243][ C1] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 491.753247][ C1] ? __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 491.753250][ C1] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 491.753252][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 491.753256][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 491.753259][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 491.753261][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 491.753266][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 491.753270][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 491.753274][ C1] __put_net (net/core/net_namespace.c:732) 
[ 491.753279][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 491.753283][ C1] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 491.753288][ C1] icmp_unreach (net/ipv4/icmp.c:969) 
[ 491.753292][ C1] ? __skb_checksum_complete (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:170 ./include/linux/skbuff.h:2065 net/core/skbuff.c:3737) 
[ 491.753298][ C1] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 491.753302][ C1] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 491.753307][ C1] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 491.753311][ 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) 
[ 491.753315][ C1] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 491.753318][ C1] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 491.753322][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 491.753326][ C1] ? ip_fast_csum (lib/checksum.c:99) 
[ 491.753328][ C1] ? ip_rcv_finish_core (./include/net/net_namespace.h:409 (discriminator 3) ./include/linux/netdevice.h:2713 (discriminator 3) net/ipv4/ip_input.c:372 (discriminator 3)) 
[ 491.753333][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 491.753337][ C1] ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 491.753341][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 491.753348][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 491.753351][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 491.753354][ C1] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 491.753359][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 491.753363][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 491.753366][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 491.753368][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 491.753373][ C1] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 491.753378][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 491.753383][ C1] __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 491.753385][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 491.753389][ C1] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 491.753395][ C1] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 491.753397][ C1] ? lock_pin_lock (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/locking/lockdep.c:5966) 
[ 491.753407][ C1] ? spin_bug (./include/linux/pid.h:232 kernel/locking/spinlock_debug.c:64 kernel/locking/spinlock_debug.c:78) 
[ 491.753411][ C1] ? __pfx_sched_balance_domains (kernel/sched/fair.c:12192) 
[ 491.753417][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 491.753422][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 491.753425][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 491.753428][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[  491.753430][    C1]  </IRQ>
[  491.753432][    C1]  <TASK>
[ 491.753433][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 491.753439][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 491.753443][ C1] Code: e2 c7 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 47 1f 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	e2 c7                	loop   0xffffffffffffffc9
   2:	00 c3                	add    %al,%bl
   4:	cc                   	int3
   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 47 1f 00 	verw   0x1f4783(%rip)        # 0x1f47ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[  491.753445][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[  491.753450][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffffa109f5d9
[  491.753452][    C1] RDX: ffffed1006c166fb RSI: ffffffffa1453ba0 RDI: ffffffff9e79018f
[  491.753454][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c166fa
[  491.753455][    C1] R10: ffff8880360b37d3 R11: ffffffffa4ba4e98 R12: 0000000000000000
[  491.753457][    C1] R13: ffff888001bf8040 R14: dffffc0000000000 R15: 0000000000000000
[ 491.753461][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 491.753464][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 491.753469][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 491.753472][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 491.753476][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 491.753479][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 491.753482][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 491.753488][ C1] do_idle (kernel/sched/idle.c:325) 
[ 491.753491][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 491.753494][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 491.753498][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 491.753502][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [  501.159728][    C1] INFO: lockdep is turned off.
| [  501.160042][    C1] Preemption disabled at:
| [ 501.160045][ C1] 0x0 
| [  501.160615][    C1] Tainted: [W]=WARN
[  501.160617][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  501.160620][    C1] Call Trace:
[  501.160623][    C1]  <IRQ>
[ 501.160627][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 501.160640][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 501.160650][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 501.160658][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 501.160663][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 501.160669][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 501.160678][ 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) 
[ 501.160685][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 501.160690][ 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) 
[ 501.160696][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 501.160705][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 501.160708][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 501.160716][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 501.160721][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 501.160728][ C1] ? call_timer_fn (kernel/time/timer.c:1748) 
[ 501.160733][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 501.160738][ C1] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 501.160745][ C1] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 501.160751][ C1] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 501.160755][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 501.160761][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 501.160766][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 501.160770][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 501.160775][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 501.160781][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 501.160785][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 501.160791][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 501.160795][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 501.160801][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 501.160809][ C1] __put_net (net/core/net_namespace.c:732) 
[ 501.160816][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 501.160823][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 501.160831][ C1] call_timer_fn (kernel/time/timer.c:1748) 
[ 501.160836][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 501.160840][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 501.160845][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 501.160855][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 501.160862][ C1] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372) 
[ 501.160868][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 501.160875][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 501.160881][ C1] ? __pfx___run_timers (kernel/time/timer.c:2343) 
[ 501.160885][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 501.160889][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 501.160896][ 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) 
[ 501.160902][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 501.160908][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 501.160913][ C1] ? timer_expire_remote (kernel/time/timer.c:2384 kernel/time/timer.c:2376 kernel/time/timer.c:2135) 
[ 501.160921][ C1] timer_expire_remote (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2135) 
[ 501.160927][ 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) 
[ 501.160933][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 501.160938][ C1] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 501.160943][ C1] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 501.160948][ C1] ? __pfx_run_posix_cpu_timers (kernel/time/posix-cpu-timers.c:1403) 
[ 501.160955][ 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) 
[ 501.160961][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 501.160968][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 501.160975][ C1] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 501.160982][ C1] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 501.160989][ C1] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 501.160997][ C1] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 501.161003][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 501.161007][ C1] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:95 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) 
[ 501.161014][ C1] ? ktime_get (kernel/time/timekeeping.c:251 (discriminator 4) kernel/time/timekeeping.c:360 (discriminator 4) kernel/time/timekeeping.c:778 (discriminator 4)) 
[ 501.161021][ C1] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 501.161032][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 501.161042][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 501.161047][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 501.161051][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[  501.161057][    C1]  </IRQ>
[  501.161059][    C1]  <TASK>
[ 501.161062][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 501.161067][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 501.161073][ C1] Code: e2 c7 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 47 1f 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	e2 c7                	loop   0xffffffffffffffc9
   2:	00 c3                	add    %al,%bl
   4:	cc                   	int3
   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 47 1f 00 	verw   0x1f4783(%rip)        # 0x1f47ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[  501.161077][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[  501.161083][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffffa109f5d9
[  501.161086][    C1] RDX: ffffed1006c166fb RSI: ffffffffa1453ba0 RDI: ffffffff9e79018f
[  501.161090][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c166fa
[  501.161093][    C1] R10: ffff8880360b37d3 R11: ffffffffa4ba4e98 R12: 0000000000000000
[  501.161097][    C1] R13: ffff888001bf8040 R14: dffffc0000000000 R15: 0000000000000000
[ 501.161103][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 501.161108][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 501.161116][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 501.161120][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 501.161125][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 501.161131][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 501.161138][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 501.161147][ C1] do_idle (kernel/sched/idle.c:325) 
[ 501.161153][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 501.161158][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 501.161164][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 501.161171][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [  519.786331][    C1] INFO: lockdep is turned off.
| [  519.786587][    C1] Preemption disabled at:
| [ 519.786589][ C1] 0x0 
| [  519.786967][    C1] Tainted: [W]=WARN
[  519.786969][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  519.786971][    C1] Call Trace:
[  519.786973][    C1]  <IRQ>
[ 519.786977][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 519.786989][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 519.786998][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 519.787004][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 519.787008][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 519.787013][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 519.787020][ 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) 
[ 519.787026][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 519.787029][ 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) 
[ 519.787032][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 519.787039][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 519.787042][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 519.787050][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 519.787055][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 519.787063][ C1] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 519.787070][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 519.787075][ C1] ? ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 519.787082][ C1] ? ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 519.787085][ C1] ? ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 519.787088][ C1] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 519.787094][ C1] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 519.787097][ C1] ? __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 519.787101][ C1] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 519.787103][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 519.787108][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 519.787111][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 519.787114][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 519.787119][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 519.787123][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 519.787128][ C1] __put_net (net/core/net_namespace.c:732) 
[ 519.787134][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 519.787138][ C1] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 519.787144][ C1] icmp_unreach (net/ipv4/icmp.c:969) 
[ 519.787149][ C1] ? __skb_checksum_complete (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:170 ./include/linux/skbuff.h:2065 net/core/skbuff.c:3737) 
[ 519.787155][ C1] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 519.787160][ C1] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 519.787165][ C1] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 519.787168][ 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) 
[ 519.787173][ C1] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 519.787176][ C1] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 519.787180][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 519.787184][ C1] ? ip_fast_csum (lib/checksum.c:99) 
[ 519.787187][ C1] ? ip_rcv_finish_core (./include/net/net_namespace.h:409 (discriminator 3) ./include/linux/netdevice.h:2713 (discriminator 3) net/ipv4/ip_input.c:372 (discriminator 3)) 
[ 519.787192][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 519.787195][ C1] ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 519.787199][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 519.787204][ C1] ? __pfx___alloc_skb (net/core/skbuff.c:643) 
[ 519.787208][ C1] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209) 
[ 519.787212][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 519.787215][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 519.787219][ C1] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 519.787223][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 519.787227][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 519.787230][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 519.787232][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 519.787237][ C1] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 519.787242][ C1] ? call_timer_fn (kernel/time/timer.c:1752) 
[ 519.787246][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 519.787249][ C1] __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 519.787251][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 519.787255][ C1] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 519.787260][ C1] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 519.787263][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 519.787271][ C1] ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202) 
[ 519.787275][ C1] ? tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 519.787279][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 519.787281][ 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) 
[ 519.787284][ C1] ? spin_bug (./include/linux/pid.h:232 kernel/locking/spinlock_debug.c:64 kernel/locking/spinlock_debug.c:78) 
[ 519.787288][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 519.787293][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 519.787298][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 519.787300][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 519.787303][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[  519.787306][    C1]  </IRQ>
[  519.787307][    C1]  <TASK>
[ 519.787309][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 519.787313][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 519.787317][ C1] Code: e2 c7 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 47 1f 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	e2 c7                	loop   0xffffffffffffffc9
   2:	00 c3                	add    %al,%bl
   4:	cc                   	int3
   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 47 1f 00 	verw   0x1f4783(%rip)        # 0x1f47ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[  519.787320][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[  519.787326][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffffa109f5d9
[  519.787329][    C1] RDX: ffffed1006c166fb RSI: ffffffffa1453ba0 RDI: ffffffff9e79018f
[  519.787332][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c166fa
[  519.787334][    C1] R10: ffff8880360b37d3 R11: ffff888005560558 R12: 0000000000000000
[  519.787337][    C1] R13: ffff888001bf8040 R14: dffffc0000000000 R15: 0000000000000000
[ 519.787344][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 519.787351][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 519.787360][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 519.787365][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 519.787370][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 519.787375][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 519.787381][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 519.787389][ C1] do_idle (kernel/sched/idle.c:325) 
[ 519.787395][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 519.787400][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 519.787406][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 519.787414][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [  525.735941][    C1] INFO: lockdep is turned off.
| [  525.736256][    C1] Preemption disabled at:
| [ 525.736259][ C1] 0x0 
| [  525.736831][    C1] Tainted: [W]=WARN
[  525.736834][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  525.736837][    C1] Call Trace:
[  525.736840][    C1]  <IRQ>
[ 525.736845][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 525.736862][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 525.736873][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 525.736882][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 525.736887][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 525.736896][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 525.736905][ 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) 
[ 525.736915][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 525.736919][ 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) 
[ 525.736924][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 525.736935][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 525.736940][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 525.736949][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 525.736955][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 525.736962][ C1] ? call_timer_fn (kernel/time/timer.c:1748) 
[ 525.736967][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 525.736972][ C1] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 525.736979][ C1] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 525.736983][ C1] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 525.736987][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 525.736995][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 525.736999][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 525.737003][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 525.737008][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 525.737014][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 525.737017][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 525.737022][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 525.737026][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 525.737032][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 525.737040][ C1] __put_net (net/core/net_namespace.c:732) 
[ 525.737046][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 525.737052][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 525.737059][ C1] call_timer_fn (kernel/time/timer.c:1748) 
[ 525.737063][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 525.737066][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 525.737070][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 525.737079][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 525.737087][ C1] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372) 
[ 525.737091][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 525.737100][ C1] ? __pfx___run_timers (kernel/time/timer.c:2343) 
[ 525.737107][ 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) 
[ 525.737112][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 525.737118][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 525.737122][ C1] ? timer_expire_remote (kernel/time/timer.c:2384 kernel/time/timer.c:2376 kernel/time/timer.c:2135) 
[ 525.737130][ C1] timer_expire_remote (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2135) 
[ 525.737136][ 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) 
[ 525.737143][ C1] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 525.737148][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 525.737153][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 525.737157][ 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) 
[ 525.737163][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 525.737169][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 525.737176][ C1] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 525.737184][ C1] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 525.737190][ C1] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 525.737198][ C1] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 525.737203][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 525.737206][ 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) 
[ 525.737212][ C1] ? spin_bug (./include/linux/pid.h:232 kernel/locking/spinlock_debug.c:64 kernel/locking/spinlock_debug.c:78) 
[ 525.737217][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 525.737223][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 525.737230][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 525.737239][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 525.737244][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 525.737248][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[  525.737253][    C1]  </IRQ>
[  525.737254][    C1]  <TASK>
[ 525.737257][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 525.737262][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 525.737267][ C1] Code: e2 c7 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 47 1f 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	e2 c7                	loop   0xffffffffffffffc9
   2:	00 c3                	add    %al,%bl
   4:	cc                   	int3
   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 47 1f 00 	verw   0x1f4783(%rip)        # 0x1f47ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[  525.737271][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[  525.737277][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffffa109f5d9
[  525.737280][    C1] RDX: ffffed1006c166fb RSI: ffffffffa1453ba0 RDI: ffffffff9e79018f
[  525.737283][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c166fa
[  525.737285][    C1] R10: ffff8880360b37d3 R11: ffff8880360a834c R12: 0000000000000000
[  525.737288][    C1] R13: ffff888001bf8040 R14: dffffc0000000000 R15: 0000000000000000
[ 525.737295][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 525.737300][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 525.737308][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 525.737312][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 525.737317][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 525.737322][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 525.737328][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 525.737337][ C1] do_idle (kernel/sched/idle.c:325) 
[ 525.737342][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 525.737347][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 525.737352][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 525.737360][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [  529.831019][    C1] INFO: lockdep is turned off.
| [  529.831222][    C1] Preemption disabled at:
| [ 529.831224][ C1] 0x0 
| [  529.831581][    C1] Tainted: [W]=WARN
[  529.831583][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  529.831585][    C1] Call Trace:
[  529.831587][    C1]  <IRQ>
[ 529.831589][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 529.831598][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 529.831605][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 529.831610][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 529.831613][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 529.831617][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 529.831622][ 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) 
[ 529.831628][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 529.831631][ 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) 
[ 529.831634][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 529.831640][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 529.831642][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 529.831648][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 529.831651][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 529.831656][ C1] ? call_timer_fn (kernel/time/timer.c:1748) 
[ 529.831660][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 529.831663][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 529.831667][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 529.831670][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 529.831672][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 529.831676][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 529.831680][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 529.831682][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 529.831685][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 529.831689][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 529.831692][ C1] ? do_idle (kernel/sched/idle.c:325) 
[ 529.831694][ C1] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 529.831697][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 529.831701][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 529.831705][ C1] __put_net (net/core/net_namespace.c:732) 
[ 529.831710][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 529.831713][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 529.831718][ C1] call_timer_fn (kernel/time/timer.c:1748) 
[ 529.831720][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 529.831723][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 529.831725][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 529.831727][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 529.831731][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 529.831735][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 529.831739][ C1] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372) 
[ 529.831742][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 529.831747][ C1] ? __pfx___run_timers (kernel/time/timer.c:2343) 
[ 529.831750][ C1] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 529.831755][ C1] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 529.831759][ 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) 
[ 529.831762][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 529.831765][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 529.831768][ C1] ? run_timer_base (kernel/time/timer.c:2384 kernel/time/timer.c:2376 kernel/time/timer.c:2393) 
[ 529.831772][ C1] run_timer_base (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2393) 
[ 529.831775][ C1] run_timer_softirq (kernel/time/timer.c:2404) 
[ 529.831777][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 529.831782][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 529.831785][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 529.831788][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[  529.831790][    C1]  </IRQ>
[  529.831791][    C1]  <TASK>
[ 529.831793][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 529.831796][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 529.831799][ C1] Code: e2 c7 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 47 1f 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	e2 c7                	loop   0xffffffffffffffc9
   2:	00 c3                	add    %al,%bl
   4:	cc                   	int3
   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 47 1f 00 	verw   0x1f4783(%rip)        # 0x1f47ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[  529.831802][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[  529.831806][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffffa109f5d9
[  529.831808][    C1] RDX: ffffed1006c166fb RSI: ffffffffa1453ba0 RDI: ffffffff9e79018f
[  529.831809][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c166fa
[  529.831811][    C1] R10: ffff8880360b37d3 R11: ffff8880360a834c R12: 0000000000000000
[  529.831813][    C1] R13: ffff888001bf8040 R14: dffffc0000000000 R15: 0000000000000000
[ 529.831817][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 529.831820][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 529.831824][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 529.831827][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 529.831829][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 529.831832][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 529.831836][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 529.831841][ C1] do_idle (kernel/sched/idle.c:325) 
[ 529.831844][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 529.831847][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 529.831850][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 529.831854][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [  549.738522][    C1] INFO: lockdep is turned off.
| [  549.738766][    C1] Preemption disabled at:
| [ 549.738768][ C1] handle_softirqs (kernel/softirq.c:553) 
| [  549.739151][    C1] Tainted: [W]=WARN
[  549.739152][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  549.739155][    C1] Call Trace:
[  549.739157][    C1]  <TASK>
[ 549.739161][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 549.739172][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 549.739180][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 549.739186][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 549.739189][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 549.739195][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.739201][ 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) 
[ 549.739208][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 549.739211][ 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) 
[ 549.739214][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 549.739221][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 549.739224][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 549.739232][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 549.739235][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 549.739242][ C1] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 549.739247][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 549.739250][ C1] ? ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 549.739256][ C1] ? ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 549.739260][ C1] ? ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 549.739263][ C1] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 549.739269][ C1] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 549.739272][ C1] ? __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 549.739275][ C1] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 549.739277][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 549.739280][ C1] ? run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 549.739282][ C1] ? smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 549.739287][ C1] ? kthread (kernel/kthread.c:464) 
[ 549.739294][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 549.739298][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.739302][ C1] __put_net (net/core/net_namespace.c:732) 
[ 549.739308][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 549.739312][ C1] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 549.739317][ C1] icmp_unreach (net/ipv4/icmp.c:969) 
[ 549.739322][ C1] ? __skb_checksum_complete (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:170 ./include/linux/skbuff.h:2065 net/core/skbuff.c:3737) 
[ 549.739328][ C1] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 549.739333][ C1] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 549.739338][ C1] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 549.739342][ C1] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 549.739346][ C1] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 549.739351][ C1] ? ip_fast_csum (lib/checksum.c:99) 
[ 549.739354][ C1] ? ip_rcv_finish_core (./include/net/net_namespace.h:409 (discriminator 3) ./include/linux/netdevice.h:2713 (discriminator 3) net/ipv4/ip_input.c:372 (discriminator 3)) 
[ 549.739359][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 549.739363][ C1] ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 549.739366][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 549.739374][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 549.739377][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 549.739380][ C1] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 549.739384][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 549.739389][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.739392][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 549.739395][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 549.739400][ C1] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 549.739406][ C1] __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 549.739408][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.739412][ C1] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 549.739415][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.739419][ C1] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 549.739422][ C1] ? trace_sched_exit_tp (./include/trace/events/sched.h:855 (discriminator 21)) 
[ 549.739426][ C1] ? __schedule (kernel/sched/core.c:6658) 
[ 549.739430][ C1] ? __pfx___schedule (kernel/sched/core.c:6658) 
[ 549.739433][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.739436][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 549.739444][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 549.739448][ C1] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 549.739451][ C1] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 549.739454][ C1] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 549.739458][ C1] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 549.739461][ C1] kthread (kernel/kthread.c:464) 
[ 549.739465][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 549.739468][ C1] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 549.739473][ C1] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 549.739476][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.739479][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 549.739483][ C1] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 549.739485][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 549.739488][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  611.750801][    C1] INFO: lockdep is turned off.
| [  611.750987][    C1] Preemption disabled at:
| [ 611.750989][ C1] 0x0 
| [  611.751377][    C1] Tainted: [W]=WARN
[  611.751378][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  611.751381][    C1] Call Trace:
[  611.751383][    C1]  <IRQ>
[ 611.751386][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 611.751399][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 611.751409][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 611.751416][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 611.751419][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 611.751425][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 611.751432][ 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) 
[ 611.751439][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 611.751442][ 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) 
[ 611.751445][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 611.751454][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 611.751459][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 611.751468][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 611.751474][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 611.751481][ C1] ? call_timer_fn (kernel/time/timer.c:1748) 
[ 611.751485][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 611.751488][ C1] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 611.751494][ C1] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 611.751498][ C1] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 611.751500][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 611.751506][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 611.751509][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 611.751512][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 611.751516][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 611.751519][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 611.751522][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 611.751529][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 611.751532][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 611.751537][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 611.751542][ C1] __put_net (net/core/net_namespace.c:732) 
[ 611.751549][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 611.751552][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 611.751558][ C1] call_timer_fn (kernel/time/timer.c:1748) 
[ 611.751560][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 611.751562][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 611.751565][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 611.751570][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 611.751574][ C1] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372) 
[ 611.751577][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 611.751581][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 611.751584][ C1] ? __pfx___run_timers (kernel/time/timer.c:2343) 
[ 611.751588][ 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) 
[ 611.751592][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 611.751595][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 611.751598][ C1] ? timer_expire_remote (kernel/time/timer.c:2384 kernel/time/timer.c:2376 kernel/time/timer.c:2135) 
[ 611.751603][ C1] timer_expire_remote (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2135) 
[ 611.751606][ 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) 
[ 611.751609][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 611.751612][ C1] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 611.751616][ C1] ? __pfx_debug_object_activate (lib/debugobjects.c:805) 
[ 611.751619][ C1] ? __pfx_run_posix_cpu_timers (kernel/time/posix-cpu-timers.c:1403) 
[ 611.751624][ 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) 
[ 611.751627][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 611.751631][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 611.751635][ C1] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 611.751640][ C1] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 611.751644][ C1] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 611.751648][ C1] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 611.751651][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 611.751653][ C1] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:95 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) 
[ 611.751658][ C1] ? ktime_get (kernel/time/timekeeping.c:251 (discriminator 4) kernel/time/timekeeping.c:360 (discriminator 4) kernel/time/timekeeping.c:778 (discriminator 4)) 
[ 611.751662][ C1] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 611.751668][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 611.751673][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 611.751676][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 611.751678][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[  611.751681][    C1]  </IRQ>
[  611.751682][    C1]  <TASK>
[ 611.751684][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 611.751687][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 611.751691][ C1] Code: e2 c7 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 47 1f 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	e2 c7                	loop   0xffffffffffffffc9
   2:	00 c3                	add    %al,%bl
   4:	cc                   	int3
   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 47 1f 00 	verw   0x1f4783(%rip)        # 0x1f47ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[  611.751694][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[  611.751697][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffffa109f5d9
[  611.751700][    C1] RDX: ffffed1006c166fb RSI: ffffffffa1453ba0 RDI: ffffffff9e79018f
[  611.751701][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c166fa
[  611.751703][    C1] R10: ffff8880360b37d3 R11: ffff888004bd0558 R12: 0000000000000000
[  611.751705][    C1] R13: ffff888001bf8040 R14: dffffc0000000000 R15: 0000000000000000
[ 611.751708][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 611.751712][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 611.751717][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 611.751719][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 611.751722][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 611.751725][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 611.751729][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 611.751734][ C1] do_idle (kernel/sched/idle.c:325) 
[ 611.751737][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 611.751740][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 611.751743][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 611.751747][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 1797.513600][    C2] INFO: lockdep is turned off.
| [ 1797.513869][    C2] Preemption disabled at:
| [ 1797.513871][ C2] __dev_queue_xmit (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:894 net/core/dev.c:4638) 
| [ 1797.514356][    C2] Tainted: [W]=WARN
[ 1797.514357][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1797.514360][    C2] Workqueue: events mptcp_worker
[ 1797.514369][    C2] Call Trace:
[ 1797.514371][    C2]  <IRQ>
[ 1797.514375][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1797.514383][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 1797.514392][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1797.514398][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1797.514401][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1797.514407][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514414][ 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) 
[ 1797.514420][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1797.514423][ 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) 
[ 1797.514427][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1797.514434][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1797.514437][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1797.514444][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1797.514447][ C2] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1797.514452][ C2] ? ip_rcv_core (./include/linux/skbuff.h:3307 net/ipv4/ip_input.c:538) 
[ 1797.514459][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1797.514463][ C2] ? __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 1797.514466][ C2] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1797.514468][ C2] ? handle_softirqs (kernel/softirq.c:579) 
[ 1797.514474][ C2] ? do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 1797.514477][ C2] ? __local_bh_enable_ip (kernel/softirq.c:407) 
[ 1797.514479][ C2] ? __dev_queue_xmit (net/core/dev.c:4741) 
[ 1797.514483][ C2] ? ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 1797.514487][ C2] ? ip_output (./include/linux/netfilter.h:306 net/ipv4/ip_output.c:433) 
[ 1797.514489][ C2] ? __ip_queue_xmit (./include/net/dst.h:459 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 1797.514492][ C2] ? __tcp_transmit_skb (net/ipv4/tcp_output.c:1479 (discriminator 4)) 
[ 1797.514496][ C2] ? tcp_write_xmit (net/ipv4/tcp_output.c:2838) 
[ 1797.514499][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1797.514503][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514507][ C2] __put_net (net/core/net_namespace.c:732) 
[ 1797.514513][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1797.514517][ C2] ip_rcv_core (./include/linux/skbuff.h:3307 net/ipv4/ip_input.c:538) 
[ 1797.514522][ C2] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1797.514529][ C2] ip_rcv (net/ipv4/ip_input.c:563) 
[ 1797.514533][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1797.514536][ C2] ? check_preempt_wakeup_fair (kernel/sched/fair.c:8836) 
[ 1797.514546][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1797.514549][ C2] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1797.514552][ C2] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1797.514556][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 1797.514561][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514564][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1797.514567][ C2] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1797.514571][ C2] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1797.514576][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514580][ C2] __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 1797.514582][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514586][ C2] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1797.514591][ C2] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 1797.514593][ C2] ? lock_pin_lock (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/locking/lockdep.c:5966) 
[ 1797.514603][ C2] ? spin_bug (./include/linux/pid.h:232 kernel/locking/spinlock_debug.c:64 kernel/locking/spinlock_debug.c:78) 
[ 1797.514606][ C2] ? __pfx_sched_balance_domains (kernel/sched/fair.c:12192) 
[ 1797.514612][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 1797.514617][ C2] ? __dev_queue_xmit (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:908 net/core/dev.c:4740) 
[ 1797.514621][ C2] do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 1797.514624][    C2]  </IRQ>
[ 1797.514625][    C2]  <TASK>
[ 1797.514627][ C2] __local_bh_enable_ip (kernel/softirq.c:407) 
[ 1797.514630][ C2] ? __dev_queue_xmit (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:908 net/core/dev.c:4740) 
[ 1797.514633][ C2] __dev_queue_xmit (net/core/dev.c:4741) 
[ 1797.514637][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1797.514640][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 1797.514645][ C2] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 1797.514651][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514654][ C2] ? __pfx___dev_queue_xmit (net/core/dev.c:4621) 
[ 1797.514659][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514662][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1797.514667][ C2] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:836 ./include/net/neighbour.h:493) 
[ 1797.514670][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1797.514675][ C2] ? ip_finish_output2 (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 net/ipv4/ip_output.c:228) 
[ 1797.514680][ C2] ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 1797.514683][ C2] ? ip_skb_dst_mtu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/ip.h:499 ./include/net/ip.h:512) 
[ 1797.514685][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514688][ C2] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1797.514692][ C2] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) 
[ 1797.514695][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1797.514698][ C2] ? __ip_finish_output (./include/linux/skbuff.h:1677 ./include/linux/skbuff.h:5059 net/ipv4/ip_output.c:307 net/ipv4/ip_output.c:295) 
[ 1797.514702][ C2] ip_output (./include/linux/netfilter.h:306 net/ipv4/ip_output.c:433) 
[ 1797.514704][ C2] ? __ip_local_out (./include/linux/skbuff.h:1156 net/ipv4/ip_output.c:119) 
[ 1797.514707][ C2] ? __pfx_ip_output (net/ipv4/ip_output.c:427) 
[ 1797.514710][ C2] ? ipv4_dst_check (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/ipv4/route.c:401 net/ipv4/route.c:1213) 
[ 1797.514713][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514716][ C2] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1797.514722][ C2] __ip_queue_xmit (./include/net/dst.h:459 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 1797.514726][ C2] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1567 (discriminator 4)) 
[ 1797.514731][ C2] __tcp_transmit_skb (net/ipv4/tcp_output.c:1479 (discriminator 4)) 
[ 1797.514738][ C2] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1300) 
[ 1797.514740][ C2] ? __pfx_mptcp_established_options (net/mptcp/options.c:832) 
[ 1797.514748][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514751][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1797.514756][ C2] tcp_write_xmit (net/ipv4/tcp_output.c:2838) 
[ 1797.514762][ C2] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1873) 
[ 1797.514766][ C2] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2747) 
[ 1797.514769][ C2] ? inet_sk_state_store (net/ipv4/af_inet.c:1353) 
[ 1797.514774][ C2] ? tcp_set_state (net/ipv4/tcp.c:2926 (discriminator 53)) 
[ 1797.514778][ C2] ? __pfx_tcp_set_state (net/ipv4/tcp.c:2926) 
[ 1797.514783][ C2] __tcp_push_pending_frames (net/ipv4/tcp_output.c:3021) 
[ 1797.514786][ C2] __tcp_close (net/ipv4/tcp.c:3186) 
[ 1797.514790][ C2] ? __mptcp_close_ssk (net/mptcp/protocol.c:2370) 
[ 1797.514793][ C2] ? __mptcp_close_ssk (net/mptcp/protocol.c:2370) 
[ 1797.514795][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1797.514800][ C2] __mptcp_close_ssk (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:455 ./include/linux/refcount.h:476 ./include/net/sock.h:814 net/mptcp/protocol.c:2401) 
[ 1797.514803][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1797.514806][ C2] ? __pfx___mptcp_close_ssk (net/mptcp/protocol.c:2345) 
[ 1797.514811][ C2] mptcp_destroy_common (net/mptcp/protocol.c:3297) 
[ 1797.514815][ C2] mptcp_destroy (./include/net/sock.h:1414 (discriminator 3) net/mptcp/protocol.c:3317 (discriminator 3)) 
[ 1797.514818][ C2] __mptcp_destroy_sock (net/mptcp/protocol.c:2952) 
[ 1797.514824][ C2] mptcp_worker (net/mptcp/protocol.c:2702) 
[ 1797.514826][ C2] ? __pfx_debug_object_deactivate (lib/debugobjects.c:862) 
[ 1797.514858][ C2] ? __pfx_mptcp_worker (net/mptcp/protocol.c:2673) 
[ 1797.514862][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514867][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514873][ C2] process_one_work (kernel/workqueue.c:3238) 
[ 1797.514883][ C2] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 1797.514892][ C2] ? assign_work (kernel/workqueue.c:1200) 
[ 1797.514904][ C2] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 1797.514908][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1797.514915][ C2] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 1797.514918][ C2] kthread (kernel/kthread.c:464) 
[ 1797.514925][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1797.514929][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1797.514932][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1797.514936][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1797.514940][ C2] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 1797.514945][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1797.514948][ C2] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [ 1815.962217][    C1] INFO: lockdep is turned off.
| [ 1815.962415][    C1] Preemption disabled at:
| [ 1815.962417][ C1] __dev_queue_xmit (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:894 net/core/dev.c:4638) 
| [ 1815.962846][    C1] Tainted: [W]=WARN
[ 1815.962848][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1815.962850][    C1] Workqueue: events mptcp_worker
[ 1815.962859][    C1] Call Trace:
[ 1815.962861][    C1]  <IRQ>
[ 1815.962864][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1815.962873][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 1815.962883][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1815.962890][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1815.962893][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1815.962899][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.962906][ 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) 
[ 1815.962914][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1815.962916][ 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) 
[ 1815.962920][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1815.962927][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1815.962930][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1815.962937][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1815.962940][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1815.962946][ C1] ? ip_rcv_core (./include/linux/skbuff.h:3307 net/ipv4/ip_input.c:538) 
[ 1815.962954][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1815.962957][ C1] ? __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 1815.962960][ C1] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1815.962962][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 1815.962968][ C1] ? do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 1815.962970][ C1] ? __local_bh_enable_ip (kernel/softirq.c:407) 
[ 1815.962973][ C1] ? __dev_queue_xmit (net/core/dev.c:4741) 
[ 1815.962976][ C1] ? ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 1815.962980][ C1] ? ip_output (./include/linux/netfilter.h:306 net/ipv4/ip_output.c:433) 
[ 1815.962983][ C1] ? __ip_queue_xmit (./include/net/dst.h:459 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 1815.962986][ C1] ? __tcp_transmit_skb (net/ipv4/tcp_output.c:1479 (discriminator 4)) 
[ 1815.962991][ C1] ? tcp_write_xmit (net/ipv4/tcp_output.c:2838) 
[ 1815.962994][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1815.962999][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963003][ C1] __put_net (net/core/net_namespace.c:732) 
[ 1815.963010][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1815.963014][ C1] ip_rcv_core (./include/linux/skbuff.h:3307 net/ipv4/ip_input.c:538) 
[ 1815.963018][ C1] ? enqueue_entity (kernel/sched/fair.c:5357) 
[ 1815.963022][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1815.963026][ C1] ip_rcv (net/ipv4/ip_input.c:563) 
[ 1815.963030][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1815.963033][ C1] ? check_preempt_wakeup_fair (kernel/sched/fair.c:8836) 
[ 1815.963042][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1815.963045][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1815.963049][ C1] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1815.963053][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 1815.963057][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963060][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1815.963063][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1815.963067][ C1] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1815.963072][ C1] ? __pfx_debug_object_activate (lib/debugobjects.c:805) 
[ 1815.963078][ C1] __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 1815.963080][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963084][ C1] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1815.963089][ C1] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 1815.963092][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963096][ C1] ? tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 1815.963100][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 1815.963103][ 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) 
[ 1815.963106][ C1] ? spin_bug (./include/linux/pid.h:232 kernel/locking/spinlock_debug.c:64 kernel/locking/spinlock_debug.c:78) 
[ 1815.963110][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1815.963113][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963118][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 1815.963122][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:908 net/core/dev.c:4740) 
[ 1815.963126][ C1] do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 1815.963129][    C1]  </IRQ>
[ 1815.963130][    C1]  <TASK>
[ 1815.963131][ C1] __local_bh_enable_ip (kernel/softirq.c:407) 
[ 1815.963134][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:908 net/core/dev.c:4740) 
[ 1815.963137][ C1] __dev_queue_xmit (net/core/dev.c:4741) 
[ 1815.963140][ C1] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1815.963143][ C1] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 1815.963149][ C1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 1815.963155][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963158][ C1] ? __pfx___dev_queue_xmit (net/core/dev.c:4621) 
[ 1815.963163][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963166][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1815.963174][ C1] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:836 ./include/net/neighbour.h:493) 
[ 1815.963176][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1815.963184][ C1] ? ip_finish_output2 (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 net/ipv4/ip_output.c:228) 
[ 1815.963188][ C1] ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 1815.963191][ C1] ? ip_skb_dst_mtu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/ip.h:499 ./include/net/ip.h:512) 
[ 1815.963193][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963196][ C1] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1815.963203][ C1] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) 
[ 1815.963206][ C1] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1815.963210][ C1] ? __ip_finish_output (./include/linux/skbuff.h:1677 ./include/linux/skbuff.h:5059 net/ipv4/ip_output.c:307 net/ipv4/ip_output.c:295) 
[ 1815.963214][ C1] ip_output (./include/linux/netfilter.h:306 net/ipv4/ip_output.c:433) 
[ 1815.963216][ C1] ? __ip_local_out (./include/linux/skbuff.h:1156 net/ipv4/ip_output.c:119) 
[ 1815.963220][ C1] ? __pfx_ip_output (net/ipv4/ip_output.c:427) 
[ 1815.963222][ C1] ? ipv4_dst_check (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/ipv4/route.c:401 net/ipv4/route.c:1213) 
[ 1815.963225][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963228][ C1] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1815.963235][ C1] __ip_queue_xmit (./include/net/dst.h:459 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 1815.963238][ C1] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1567 (discriminator 4)) 
[ 1815.963244][ C1] __tcp_transmit_skb (net/ipv4/tcp_output.c:1479 (discriminator 4)) 
[ 1815.963251][ C1] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1300) 
[ 1815.963253][ C1] ? __pfx_mptcp_established_options (net/mptcp/options.c:832) 
[ 1815.963261][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963264][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1815.963270][ C1] tcp_write_xmit (net/ipv4/tcp_output.c:2838) 
[ 1815.963275][ C1] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1873) 
[ 1815.963279][ C1] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2747) 
[ 1815.963282][ C1] ? inet_sk_state_store (net/ipv4/af_inet.c:1353) 
[ 1815.963288][ C1] ? tcp_set_state (net/ipv4/tcp.c:2926 (discriminator 53)) 
[ 1815.963293][ C1] ? __pfx_tcp_set_state (net/ipv4/tcp.c:2926) 
[ 1815.963298][ C1] __tcp_push_pending_frames (net/ipv4/tcp_output.c:3021) 
[ 1815.963302][ C1] __tcp_close (net/ipv4/tcp.c:3186) 
[ 1815.963306][ C1] ? __mptcp_close_ssk (net/mptcp/protocol.c:2370) 
[ 1815.963308][ C1] ? __mptcp_close_ssk (net/mptcp/protocol.c:2370) 
[ 1815.963311][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1815.963315][ C1] __mptcp_close_ssk (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:455 ./include/linux/refcount.h:476 ./include/net/sock.h:814 net/mptcp/protocol.c:2401) 
[ 1815.963318][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1815.963322][ C1] ? __pfx___mptcp_close_ssk (net/mptcp/protocol.c:2345) 
[ 1815.963326][ C1] mptcp_destroy_common (net/mptcp/protocol.c:3297) 
[ 1815.963330][ C1] mptcp_destroy (./include/net/sock.h:1414 (discriminator 3) net/mptcp/protocol.c:3317 (discriminator 3)) 
[ 1815.963333][ C1] __mptcp_destroy_sock (net/mptcp/protocol.c:2952) 
[ 1815.963339][ C1] mptcp_worker (net/mptcp/protocol.c:2702) 
[ 1815.963342][ C1] ? __pfx_debug_object_deactivate (lib/debugobjects.c:862) 
[ 1815.963345][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963348][ C1] ? __pfx_mptcp_worker (net/mptcp/protocol.c:2673) 
[ 1815.963351][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963354][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963358][ C1] process_one_work (kernel/workqueue.c:3238) 
[ 1815.963364][ C1] ? check_preemption_disabled (./arch/x86/include/asm/preempt.h:27 lib/smp_processor_id.c:16) 
[ 1815.963368][ C1] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 1815.963373][ C1] ? assign_work (kernel/workqueue.c:1200) 
[ 1815.963379][ C1] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 1815.963384][ C1] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 1815.963387][ C1] kthread (kernel/kthread.c:464) 
[ 1815.963392][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1815.963395][ C1] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 1815.963398][ C1] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 1815.963402][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1815.963404][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1815.963408][ C1] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 1815.963411][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1815.963414][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [ 1823.945679][    C1] INFO: lockdep is turned off.
| [ 1823.945896][    C1] Preemption disabled at:
| [ 1823.945898][ C1] __dev_queue_xmit (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:894 net/core/dev.c:4638) 
| [ 1823.946323][    C1] Tainted: [W]=WARN
[ 1823.946324][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1823.946327][    C1] Workqueue: events mptcp_worker
[ 1823.946336][    C1] Call Trace:
[ 1823.946338][    C1]  <IRQ>
[ 1823.946340][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1823.946349][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 1823.946358][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1823.946363][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1823.946367][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1823.946372][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946378][ 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) 
[ 1823.946385][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1823.946388][ 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) 
[ 1823.946391][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1823.946398][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1823.946401][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1823.946408][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1823.946411][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1823.946417][ C1] ? ip_rcv_core (./include/linux/skbuff.h:3307 net/ipv4/ip_input.c:538) 
[ 1823.946424][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1823.946428][ C1] ? __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 1823.946431][ C1] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1823.946433][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 1823.946438][ C1] ? do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 1823.946441][ C1] ? __local_bh_enable_ip (kernel/softirq.c:407) 
[ 1823.946444][ C1] ? __dev_queue_xmit (net/core/dev.c:4741) 
[ 1823.946448][ C1] ? ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 1823.946451][ C1] ? ip_output (./include/linux/netfilter.h:306 net/ipv4/ip_output.c:433) 
[ 1823.946454][ C1] ? __ip_queue_xmit (./include/net/dst.h:459 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 1823.946457][ C1] ? __tcp_transmit_skb (net/ipv4/tcp_output.c:1479 (discriminator 4)) 
[ 1823.946461][ C1] ? tcp_write_xmit (net/ipv4/tcp_output.c:2838) 
[ 1823.946464][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1823.946469][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946473][ C1] __put_net (net/core/net_namespace.c:732) 
[ 1823.946479][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1823.946483][ C1] ip_rcv_core (./include/linux/skbuff.h:3307 net/ipv4/ip_input.c:538) 
[ 1823.946486][ C1] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1823.946492][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1823.946495][ C1] ip_rcv (net/ipv4/ip_input.c:563) 
[ 1823.946499][ C1] ? __pfx_debug_object_activate (lib/debugobjects.c:805) 
[ 1823.946502][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1823.946507][ C1] ? switch_hrtimer_base (kernel/time/hrtimer.c:232 kernel/time/hrtimer.c:258) 
[ 1823.946513][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1823.946516][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1823.946519][ C1] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1823.946526][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 1823.946531][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946533][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1823.946536][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1823.946541][ C1] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1823.946546][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946550][ C1] __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 1823.946552][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946556][ C1] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1823.946561][ C1] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 1823.946564][ C1] ? lock_pin_lock (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/locking/lockdep.c:5966) 
[ 1823.946573][ C1] ? __pfx_sched_balance_domains (kernel/sched/fair.c:12192) 
[ 1823.946581][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 1823.946585][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:908 net/core/dev.c:4740) 
[ 1823.946589][ C1] do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 1823.946592][    C1]  </IRQ>
[ 1823.946593][    C1]  <TASK>
[ 1823.946594][ C1] __local_bh_enable_ip (kernel/softirq.c:407) 
[ 1823.946597][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:908 net/core/dev.c:4740) 
[ 1823.946600][ C1] __dev_queue_xmit (net/core/dev.c:4741) 
[ 1823.946603][ C1] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1823.946607][ C1] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 1823.946612][ C1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 1823.946620][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946623][ C1] ? __pfx___dev_queue_xmit (net/core/dev.c:4621) 
[ 1823.946628][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946631][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1823.946638][ C1] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:836 ./include/net/neighbour.h:493) 
[ 1823.946641][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1823.946647][ C1] ? ip_finish_output2 (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 net/ipv4/ip_output.c:228) 
[ 1823.946651][ C1] ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 1823.946654][ C1] ? ip_skb_dst_mtu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/ip.h:499 ./include/net/ip.h:512) 
[ 1823.946657][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946660][ C1] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1823.946663][ C1] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) 
[ 1823.946666][ C1] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1823.946669][ C1] ? __ip_finish_output (./include/linux/skbuff.h:1677 ./include/linux/skbuff.h:5059 net/ipv4/ip_output.c:307 net/ipv4/ip_output.c:295) 
[ 1823.946673][ C1] ip_output (./include/linux/netfilter.h:306 net/ipv4/ip_output.c:433) 
[ 1823.946676][ C1] ? __ip_local_out (./include/linux/skbuff.h:1156 net/ipv4/ip_output.c:119) 
[ 1823.946679][ C1] ? __pfx_ip_output (net/ipv4/ip_output.c:427) 
[ 1823.946682][ C1] ? ipv4_dst_check (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/ipv4/route.c:401 net/ipv4/route.c:1213) 
[ 1823.946685][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946688][ C1] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1823.946694][ C1] __ip_queue_xmit (./include/net/dst.h:459 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 1823.946698][ C1] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1567 (discriminator 4)) 
[ 1823.946704][ C1] __tcp_transmit_skb (net/ipv4/tcp_output.c:1479 (discriminator 4)) 
[ 1823.946710][ C1] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1300) 
[ 1823.946712][ C1] ? __pfx_mptcp_established_options (net/mptcp/options.c:832) 
[ 1823.946720][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946723][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1823.946728][ C1] tcp_write_xmit (net/ipv4/tcp_output.c:2838) 
[ 1823.946734][ C1] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1873) 
[ 1823.946738][ C1] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2747) 
[ 1823.946741][ C1] ? inet_sk_state_store (net/ipv4/af_inet.c:1353) 
[ 1823.946747][ C1] ? tcp_set_state (net/ipv4/tcp.c:2926 (discriminator 53)) 
[ 1823.946751][ C1] ? __pfx_tcp_set_state (net/ipv4/tcp.c:2926) 
[ 1823.946756][ C1] __tcp_push_pending_frames (net/ipv4/tcp_output.c:3021) 
[ 1823.946760][ C1] __tcp_close (net/ipv4/tcp.c:3186) 
[ 1823.946763][ C1] ? __mptcp_close_ssk (net/mptcp/protocol.c:2370) 
[ 1823.946766][ C1] ? __mptcp_close_ssk (net/mptcp/protocol.c:2370) 
[ 1823.946768][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1823.946772][ C1] __mptcp_close_ssk (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:455 ./include/linux/refcount.h:476 ./include/net/sock.h:814 net/mptcp/protocol.c:2401) 
[ 1823.946776][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1823.946779][ C1] ? __pfx___mptcp_close_ssk (net/mptcp/protocol.c:2345) 
[ 1823.946784][ C1] mptcp_destroy_common (net/mptcp/protocol.c:3297) 
[ 1823.946788][ C1] mptcp_destroy (./include/net/sock.h:1414 (discriminator 3) net/mptcp/protocol.c:3317 (discriminator 3)) 
[ 1823.946791][ C1] __mptcp_destroy_sock (net/mptcp/protocol.c:2952) 
[ 1823.946796][ C1] mptcp_worker (net/mptcp/protocol.c:2702) 
[ 1823.946798][ C1] ? __pfx_debug_object_deactivate (lib/debugobjects.c:862) 
[ 1823.946801][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946805][ C1] ? __pfx_mptcp_worker (net/mptcp/protocol.c:2673) 
[ 1823.946807][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946810][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946814][ C1] process_one_work (kernel/workqueue.c:3238) 
[ 1823.946821][ C1] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 1823.946826][ C1] ? assign_work (kernel/workqueue.c:1200) 
[ 1823.946831][ C1] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 1823.946834][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1823.946839][ C1] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 1823.946842][ C1] kthread (kernel/kthread.c:464) 
[ 1823.946847][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1823.946850][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1823.946854][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1823.946857][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1823.946861][ C1] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 1823.946865][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1823.946869][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [ 1862.645959][    C1] INFO: lockdep is turned off.
| [ 1862.646189][    C1] Preemption disabled at:
| [ 1862.646191][ C1] 0x0 
| [ 1862.646606][    C1] Tainted: [W]=WARN
[ 1862.646608][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1862.646610][    C1] Call Trace:
[ 1862.646612][    C1]  <IRQ>
[ 1862.646614][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1862.646627][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 1862.646633][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1862.646639][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1862.646643][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1862.646647][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1862.646652][ 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) 
[ 1862.646657][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1862.646660][ 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) 
[ 1862.646663][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1862.646669][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1862.646672][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1862.646678][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1862.646682][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1862.646686][ C1] ? tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2372) 
[ 1862.646690][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1862.646694][ C1] ? ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 1862.646699][ C1] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1862.646703][ C1] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1862.646707][ C1] ? __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 1862.646709][ C1] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1862.646712][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 1862.646716][ C1] ? do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 1862.646719][ C1] ? __local_bh_enable_ip (kernel/softirq.c:407) 
[ 1862.646721][ C1] ? mptcp_send_ack (./include/net/sock.h:1730 ./include/net/sock.h:1720 net/mptcp/protocol.c:458 net/mptcp/protocol.c:466) 
[ 1862.646726][ C1] ? __mptcp_retrans (net/mptcp/protocol.c:2567) 
[ 1862.646729][ C1] ? mptcp_release_cb (net/mptcp/protocol.c:3375) 
[ 1862.646732][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1862.646735][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1862.646739][ C1] __put_net (net/core/net_namespace.c:732) 
[ 1862.646744][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1862.646748][ C1] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2372) 
[ 1862.646755][ C1] ? raw_v4_input (net/ipv4/raw.c:165) 
[ 1862.646759][ C1] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2188) 
[ 1862.646763][ C1] ? __inet_lookup_established (./include/net/net_namespace.h:409 ./include/net/sock.h:680 ./include/net/inet_hashtables.h:353 net/ipv4/inet_hashtables.c:516) 
[ 1862.646770][ C1] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) 
[ 1862.646775][ C1] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1862.646779][ C1] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1862.646783][ C1] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 1862.646786][ C1] ? tcp_v4_early_demux (./include/linux/skbuff.h:1188 net/ipv4/tcp_ipv4.c:2008) 
[ 1862.646789][ C1] ? trace_pelt_se_tp (./include/trace/events/sched.h:822 (discriminator 21)) 
[ 1862.646795][ C1] ? rcu_read_lock_held (kernel/rcu/update.c:105 kernel/rcu/update.c:349) 
[ 1862.646799][ C1] ? ip_rcv_finish_core (./include/linux/skbuff.h:1156 ./include/net/route.h:88 net/ipv4/ip_input.c:390) 
[ 1862.646804][ C1] ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 1862.646808][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1862.646811][ C1] ? pick_eevdf (kernel/sched/fair.c:946) 
[ 1862.646815][ C1] ? enqueue_entity (kernel/sched/fair.c:5357) 
[ 1862.646818][ C1] ? __resched_curr (./arch/x86/include/asm/bitops.h:60 ./include/asm-generic/bitops/instrumented-atomic.h:29 ./include/linux/thread_info.h:97 kernel/sched/core.c:1114) 
[ 1862.646822][ C1] ? __pfx___resched_curr (kernel/sched/core.c:1094) 
[ 1862.646826][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1862.646829][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1862.646832][ C1] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1862.646836][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 1862.646840][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1862.646843][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1862.646846][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1862.646850][ C1] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1862.646855][ C1] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1862.646859][ C1] __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 1862.646861][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1862.646865][ C1] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1862.646870][ C1] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 1862.646872][ C1] ? vm_interrupt (drivers/virtio/virtio_mmio.c:325) 
[ 1862.646876][ C1] ? rcu_watching_snap_stopped_since (./include/linux/context_tracking_state.h:73) 
[ 1862.646880][ 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) 
[ 1862.646884][ 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) 
[ 1862.646888][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1862.646891][ C1] ? kvm_guest_apic_eoi_write (./arch/x86/include/asm/bitops.h:177 ./include/asm-generic/bitops/instrumented-non-atomic.h:115 arch/x86/kernel/kvm.c:347) 
[ 1862.646895][ C1] ? ioapic_ack_level (arch/x86/kernel/apic/io_apic.c:1715) 
[ 1862.646900][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 1862.646904][ C1] ? mptcp_send_ack (./include/net/sock.h:1730 ./include/net/sock.h:1720 net/mptcp/protocol.c:458 net/mptcp/protocol.c:466) 
[ 1862.646908][ C1] do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 1862.646911][    C1]  </IRQ>
[ 1862.646912][    C1]  <TASK>
[ 1862.646913][ C1] __local_bh_enable_ip (kernel/softirq.c:407) 
[ 1862.646916][ C1] mptcp_send_ack (./include/net/sock.h:1730 ./include/net/sock.h:1720 net/mptcp/protocol.c:458 net/mptcp/protocol.c:466) 
[ 1862.646920][ C1] ? __pfx_mptcp_send_ack (net/mptcp/protocol.c:462) 
[ 1862.646925][ C1] __mptcp_retrans (net/mptcp/protocol.c:2567) 
[ 1862.646929][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1862.646932][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1862.646936][ C1] ? __pfx___mptcp_retrans (net/mptcp/protocol.c:2545) 
[ 1862.646938][ C1] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1862.646943][ C1] ? mptcp_release_cb (net/mptcp/protocol.c:3370) 
[ 1862.646945][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1862.646948][ C1] ? mptcp_release_cb (net/mptcp/protocol.c:3370) 
[ 1862.646951][ C1] mptcp_release_cb (net/mptcp/protocol.c:3375) 
[ 1862.646953][ C1] ? do_raw_write_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/qrwlock.h:98 kernel/locking/spinlock_debug.c:211) 
[ 1862.646958][ C1] ? mptcp_close_timeout (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/net/sock.h:1019 net/mptcp/ctrl.c:77) 
[ 1862.646963][ 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) 
[ 1862.646966][ C1] ? __pfx_mptcp_release_cb (net/mptcp/protocol.c:3347) 
[ 1862.646968][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1862.646972][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1862.646974][ C1] ? release_sock (net/core/sock.c:3766) 
[ 1862.646979][ C1] release_sock (net/core/sock.c:3770 (discriminator 2)) 
[ 1862.646982][ C1] mptcp_close (net/mptcp/protocol.c:3068) 
[ 1862.646985][ C1] inet_release (net/ipv4/af_inet.c:435) 
[ 1862.646989][ C1] __sock_release (net/socket.c:647) 
[ 1862.646994][ C1] sock_close (net/socket.c:1393) 
[ 1862.646997][ C1] __fput (fs/file_table.c:465) 
[ 1862.647004][ C1] task_work_run (kernel/task_work.c:229 (discriminator 1)) 
[ 1862.647008][ C1] ? __pfx_task_work_run (kernel/task_work.c:195) 
[ 1862.647011][ C1] ? kmem_cache_free (mm/slub.c:4642 mm/slub.c:4744) 
[ 1862.647016][ C1] ? refcount_dec_and_lock (lib/refcount.c:146) 
[ 1862.647019][ C1] ? do_exit (./include/linux/task_work.h:40 kernel/exit.c:959) 
[ 1862.647024][ C1] do_exit (kernel/exit.c:960) 
[ 1862.647028][ C1] do_group_exit (kernel/exit.c:1089) 
[ 1862.647032][ C1] get_signal (kernel/signal.c:701 kernel/signal.c:2912) 
[ 1862.647037][ C1] ? hrtimer_nanosleep (kernel/time/hrtimer.c:2140) 
[ 1862.647043][ C1] ? __pfx_hrtimer_nanosleep (kernel/time/hrtimer.c:2140) 
[ 1862.647046][ C1] ? __pfx_get_signal (kernel/signal.c:2800) 
[ 1862.647050][ C1] ? __pfx_hrtimer_wakeup (kernel/time/hrtimer.c:1990) 
[ 1862.647055][ C1] arch_do_signal_or_restart (arch/x86/kernel/signal.c:337) 
[ 1862.647060][ C1] ? __pfx_arch_do_signal_or_restart (arch/x86/kernel/signal.c:334) 
[ 1862.647064][ C1] ? common_nsleep (kernel/time/posix-timers.c:1356) 
[ 1862.647068][ C1] ? __x64_sys_clock_nanosleep (kernel/time/posix-timers.c:1399 kernel/time/posix-timers.c:1376 kernel/time/posix-timers.c:1376) 
[ 1862.647072][ C1] ? ksys_write (fs/read_write.c:738) 
[ 1862.647077][ C1] ? __pfx___x64_sys_clock_nanosleep (kernel/time/posix-timers.c:1376) 
[ 1862.647080][ C1] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mm.h:704 ./include/linux/mm.h:799 arch/x86/mm/fault.c:1338) 
[ 1862.647085][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1862.647088][ C1] exit_to_user_mode_loop (kernel/entry/common.c:113) 
[ 1862.647093][ C1] do_syscall_64 (./include/linux/entry-common.h:330 ./include/linux/entry-common.h:414 ./include/linux/entry-common.h:449 arch/x86/entry/syscall_64.c:100) 
[ 1862.647098][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1862.647101][    C1] RIP: 0033:0x7f14399ac97a
[ 1862.647104][ C1] Code: Unable to access opcode bytes at 0x7f14399ac950.

Code starting with the faulting instruction
===========================================
[ 1862.647106][    C1] RSP: 002b:00007fff74ec1648 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6
[ 1862.647109][    C1] RAX: fffffffffffffdfc RBX: 0000000000000005 RCX: 00007f14399ac97a
[ 1862.647111][    C1] RDX: 00007fff74ec1660 RSI: 0000000000000000 RDI: 0000000000000000
[ 1862.647113][    C1] RBP: 0000000000000005 R08: 00007f1439a921fc R09: 00007f1439a92260
[ 1862.647115][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff74ec3850
[ 1862.647116][    C1] R13: 00007fff74ec3b66 R14: 0000000000000316 R15: 0000000000000005
| [ 1890.649035][    C3] INFO: lockdep is turned off.
| [ 1890.649249][    C3] Preemption disabled at:
| [ 1890.649251][ C3] __dev_queue_xmit (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:894 net/core/dev.c:4638) 
| [ 1890.649716][    C3] Tainted: [W]=WARN
[ 1890.649718][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1890.649720][    C3] Workqueue: events mptcp_worker
[ 1890.649726][    C3] Call Trace:
[ 1890.649728][    C3]  <IRQ>
[ 1890.649730][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1890.649737][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 1890.649744][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1890.649748][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1890.649751][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1890.649755][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.649760][ 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) 
[ 1890.649765][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1890.649768][ 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) 
[ 1890.649771][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1890.649777][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1890.649780][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1890.649785][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1890.649789][ C3] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1890.649794][ C3] ? ip_rcv_core (./include/linux/skbuff.h:3307 net/ipv4/ip_input.c:538) 
[ 1890.649799][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1890.649802][ C3] ? __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 1890.649805][ C3] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1890.649807][ C3] ? handle_softirqs (kernel/softirq.c:579) 
[ 1890.649811][ C3] ? do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 1890.649814][ C3] ? __local_bh_enable_ip (kernel/softirq.c:407) 
[ 1890.649817][ C3] ? __dev_queue_xmit (net/core/dev.c:4741) 
[ 1890.649820][ C3] ? ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 1890.649823][ C3] ? ip_output (./include/linux/netfilter.h:306 net/ipv4/ip_output.c:433) 
[ 1890.649825][ C3] ? __ip_queue_xmit (./include/net/dst.h:459 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 1890.649828][ C3] ? __tcp_transmit_skb (net/ipv4/tcp_output.c:1479 (discriminator 4)) 
[ 1890.649833][ C3] ? tcp_write_xmit (net/ipv4/tcp_output.c:2838) 
[ 1890.649835][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1890.649839][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.649843][ C3] __put_net (net/core/net_namespace.c:732) 
[ 1890.649849][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1890.649853][ C3] ip_rcv_core (./include/linux/skbuff.h:3307 net/ipv4/ip_input.c:538) 
[ 1890.649858][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1890.649862][ C3] ip_rcv (net/ipv4/ip_input.c:563) 
[ 1890.649866][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1890.649871][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.649874][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.649877][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1890.649880][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1890.649884][ C3] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1890.649888][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 1890.649893][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.649896][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1890.649898][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1890.649903][ C3] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1890.649907][ C3] ? call_timer_fn (kernel/time/timer.c:1752) 
[ 1890.649910][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1890.649914][ C3] __napi_poll.constprop.0 (net/core/dev.c:7415) 
[ 1890.649916][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.649919][ C3] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1890.649925][ C3] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 1890.649930][ C3] ? tmigr_handle_remote (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 kernel/time/timer_migration.c:441 kernel/time/timer_migration.c:1074) 
[ 1890.649933][ C3] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 1890.649935][ 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) 
[ 1890.649939][ C3] ? spin_bug (kernel/locking/spinlock_debug.c:64 kernel/locking/spinlock_debug.c:78) 
[ 1890.649942][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1890.649945][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.649949][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 1890.649953][ C3] ? __dev_queue_xmit (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:908 net/core/dev.c:4740) 
[ 1890.649957][ C3] do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 1890.649960][    C3]  </IRQ>
[ 1890.649961][    C3]  <TASK>
[ 1890.649962][ C3] __local_bh_enable_ip (kernel/softirq.c:407) 
[ 1890.649965][ C3] ? __dev_queue_xmit (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:908 net/core/dev.c:4740) 
[ 1890.649968][ C3] __dev_queue_xmit (net/core/dev.c:4741) 
[ 1890.649972][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1890.649975][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 1890.649980][ C3] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 1890.649986][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.649989][ C3] ? __pfx___dev_queue_xmit (net/core/dev.c:4621) 
[ 1890.649994][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.649996][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1890.650001][ C3] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:836 ./include/net/neighbour.h:493) 
[ 1890.650004][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1890.650009][ C3] ? ip_finish_output2 (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 net/ipv4/ip_output.c:228) 
[ 1890.650013][ C3] ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 1890.650016][ C3] ? ip_skb_dst_mtu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/ip.h:499 ./include/net/ip.h:512) 
[ 1890.650018][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.650021][ C3] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1890.650026][ C3] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) 
[ 1890.650029][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1890.650032][ C3] ? __ip_finish_output (./include/linux/skbuff.h:1677 ./include/linux/skbuff.h:5059 net/ipv4/ip_output.c:307 net/ipv4/ip_output.c:295) 
[ 1890.650036][ C3] ip_output (./include/linux/netfilter.h:306 net/ipv4/ip_output.c:433) 
[ 1890.650039][ C3] ? __ip_local_out (./include/linux/skbuff.h:1156 net/ipv4/ip_output.c:119) 
[ 1890.650042][ C3] ? __pfx_ip_output (net/ipv4/ip_output.c:427) 
[ 1890.650045][ C3] ? ipv4_dst_check (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/ipv4/route.c:401 net/ipv4/route.c:1213) 
[ 1890.650047][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.650050][ C3] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1890.650056][ C3] __ip_queue_xmit (./include/net/dst.h:459 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 1890.650060][ C3] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1567 (discriminator 4)) 
[ 1890.650065][ C3] __tcp_transmit_skb (net/ipv4/tcp_output.c:1479 (discriminator 4)) 
[ 1890.650071][ C3] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1300) 
[ 1890.650074][ C3] ? __pfx_mptcp_established_options (net/mptcp/options.c:832) 
[ 1890.650080][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.650083][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1890.650088][ C3] tcp_write_xmit (net/ipv4/tcp_output.c:2838) 
[ 1890.650094][ C3] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1873) 
[ 1890.650098][ C3] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2747) 
[ 1890.650101][ C3] ? inet_sk_state_store (net/ipv4/af_inet.c:1353) 
[ 1890.650106][ C3] ? tcp_set_state (net/ipv4/tcp.c:2926 (discriminator 53)) 
[ 1890.650110][ C3] ? __pfx_tcp_set_state (net/ipv4/tcp.c:2926) 
[ 1890.650114][ C3] __tcp_push_pending_frames (net/ipv4/tcp_output.c:3021) 
[ 1890.650118][ C3] __tcp_close (net/ipv4/tcp.c:3186) 
[ 1890.650122][ C3] ? __mptcp_close_ssk (net/mptcp/protocol.c:2370) 
[ 1890.650125][ C3] ? __mptcp_close_ssk (net/mptcp/protocol.c:2370) 
[ 1890.650127][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1890.650131][ C3] __mptcp_close_ssk (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:455 ./include/linux/refcount.h:476 ./include/net/sock.h:814 net/mptcp/protocol.c:2401) 
[ 1890.650135][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1890.650138][ C3] ? __pfx___mptcp_close_ssk (net/mptcp/protocol.c:2345) 
[ 1890.650143][ C3] mptcp_destroy_common (net/mptcp/protocol.c:3297) 
[ 1890.650147][ C3] mptcp_destroy (./include/net/sock.h:1414 (discriminator 3) net/mptcp/protocol.c:3317 (discriminator 3)) 
[ 1890.650150][ C3] __mptcp_destroy_sock (net/mptcp/protocol.c:2952) 
[ 1890.650154][ C3] mptcp_worker (net/mptcp/protocol.c:2702) 
[ 1890.650157][ C3] ? __pfx_debug_object_deactivate (lib/debugobjects.c:862) 
[ 1890.650160][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.650164][ C3] ? __pfx_mptcp_worker (net/mptcp/protocol.c:2673) 
[ 1890.650166][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.650169][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.650173][ C3] process_one_work (kernel/workqueue.c:3238) 
[ 1890.650179][ C3] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 1890.650184][ C3] ? assign_work (kernel/workqueue.c:1200) 
[ 1890.650189][ C3] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 1890.650192][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1890.650197][ C3] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 1890.650202][ C3] kthread (kernel/kthread.c:464) 
[ 1890.650209][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1890.650214][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1890.650219][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1890.650224][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1890.650230][ C3] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 1890.650234][ C3] ? __pfx_kthread (kernel/kthread.c:413) 


Finger prints:
__might_resched:down_write:simple_recursive_removal:debugfs_remove:ref_tracker_dir_exit
__dev_queue_xmit:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
handle_softirqs:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal