======================================
| [ 1263.021524][ C3] #0: ffffffff9db9b5e0 (rcu_read_lock){....}-{1:3}, at: process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
| [ 1263.021872][ C3] #1: ffffffff9db9b5e0 (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) 
| [ 1263.022272][    C3]
| [ 1263.022272][    C3] stack backtrace:
[ 1263.022523][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1263.022525][    C3] Call Trace:
[ 1263.022527][    C3]  <TASK>
[ 1263.022531][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1263.022540][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 1263.022545][ C3] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 1263.022549][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 1263.022555][ C3] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 1263.022557][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 1263.022565][ C3] mark_lock (kernel/locking/lockdep.c:4756) 
[ 1263.022569][ C3] mark_usage (kernel/locking/lockdep.c:4645) 
[ 1263.022572][ C3] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 1263.022575][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 1263.022579][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 1263.022582][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 1263.022587][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1263.022592][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1263.022594][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 1263.022599][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 1263.022601][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 1263.022604][ C3] simple_pin_fs (fs/libfs.c:1067) 
[ 1263.022608][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 1263.022611][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1263.022618][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1263.022621][ 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) 
[ 1263.022626][ C3] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1263.022631][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1263.022634][ C3] ? ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1263.022637][ C3] ? ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1263.022641][ C3] ? 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) 
[ 1263.022644][ C3] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1263.022647][ C3] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1263.022650][ C3] ? __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 1263.022653][ C3] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1263.022655][ C3] ? handle_softirqs (kernel/softirq.c:579) 
[ 1263.022658][ C3] ? run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 1263.022661][ C3] ? smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1263.022666][ C3] ? kthread (kernel/kthread.c:464) 
[ 1263.022674][ C3] __put_net (net/core/net_namespace.c:732) 
[ 1263.022680][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1263.022685][ C3] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1263.022690][ C3] icmp_unreach (net/ipv4/icmp.c:969) 
[ 1263.022695][ C3] ? __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) 
[ 1263.022701][ C3] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 1263.022705][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 1263.022710][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1263.022715][ C3] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1263.022719][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 1263.022724][ C3] ? 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)) 
[ 1263.022729][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1263.022732][ C3] 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) 
[ 1263.022736][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1263.022740][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 1263.022742][ C3] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 1263.022747][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 1263.022750][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1263.022753][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1263.022757][ C3] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1263.022761][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 1263.022765][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1263.022768][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1263.022771][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1263.022776][ C3] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1263.022782][ C3] __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 1263.022784][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1263.022788][ C3] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1263.022793][ C3] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 1263.022796][ C3] ? __qdisc_run (net/sched/sch_generic.c:409 net/sched/sch_generic.c:417) 
[ 1263.022802][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 1263.022808][ C3] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 1263.022811][ C3] ? net_tx_action (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev.c:5629) 
[ 1263.022816][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 1263.022820][ C3] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 1263.022824][ C3] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 1263.022827][ C3] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1263.022830][ C3] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 1263.022834][ C3] kthread (kernel/kthread.c:464) 
[ 1263.022838][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1263.022841][ C3] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 1263.022844][ C3] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 1263.022847][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1263.022850][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1263.022854][ C3] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 1263.022857][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1263.022860][ C3] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [ 1263.041038][    C3] RCU nest depth: 2, expected: 0
| [ 1263.041216][    C3] INFO: lockdep is turned off.
| [ 1263.041513][    C3] Preemption disabled at:
| [ 1263.041515][ C3] handle_softirqs (kernel/softirq.c:553) 
[ 1263.041883][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1263.041885][    C3] Call Trace:
[ 1263.041888][    C3]  <TASK>
[ 1263.041890][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1263.041900][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 1263.041908][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1263.041913][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1263.041916][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1263.041921][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1263.041926][ 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) 
[ 1263.041932][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1263.041935][ 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) 
[ 1263.041938][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1263.041944][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1263.041947][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1263.041954][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1263.041957][ 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) 
[ 1263.041962][ C3] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1263.041966][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1263.041969][ C3] ? ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1263.041975][ C3] ? ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1263.041979][ C3] ? 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) 
[ 1263.041982][ C3] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1263.041987][ C3] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1263.041990][ C3] ? __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 1263.041993][ C3] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1263.041995][ C3] ? handle_softirqs (kernel/softirq.c:579) 
[ 1263.041998][ C3] ? run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 1263.042001][ C3] ? smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1263.042005][ C3] ? kthread (kernel/kthread.c:464) 
[ 1263.042012][ C3] __put_net (net/core/net_namespace.c:732) 
[ 1263.042018][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1263.042022][ C3] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1263.042027][ C3] icmp_unreach (net/ipv4/icmp.c:969) 
[ 1263.042031][ C3] ? __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) 
[ 1263.042037][ C3] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 1263.042042][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 1263.042047][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1263.042051][ C3] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1263.042055][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 1263.042061][ C3] ? 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)) 
[ 1263.042066][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1263.042070][ C3] 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) 
[ 1263.042073][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1263.042077][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 1263.042081][ C3] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 1263.042086][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 1263.042089][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1263.042092][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1263.042096][ C3] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1263.042100][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 1263.042104][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1263.042107][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1263.042109][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1263.042114][ C3] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1263.042120][ C3] __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 1263.042123][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1263.042127][ C3] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1263.042133][ C3] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 1263.042135][ C3] ? __qdisc_run (net/sched/sch_generic.c:409 net/sched/sch_generic.c:417) 
[ 1263.042143][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 1263.042148][ C3] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 1263.042152][ C3] ? net_tx_action (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev.c:5629) 
[ 1263.042157][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 1263.042161][ C3] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 1263.042165][ C3] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 1263.042168][ C3] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1263.042171][ C3] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 1263.042175][ C3] kthread (kernel/kthread.c:464) 
[ 1263.042179][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1263.042182][ C3] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 1263.042185][ C3] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 1263.042189][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1263.042192][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1263.042196][ C3] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 1263.042198][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1263.042202][ C3] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [ 1267.108223][    C2] INFO: lockdep is turned off.
| [ 1267.108454][    C2] Preemption disabled at:
| [ 1267.108456][ C2] 0x0 
| [ 1267.108888][    C2] Tainted: [W]=WARN
[ 1267.108889][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1267.108892][    C2] Call Trace:
[ 1267.108894][    C2]  <IRQ>
[ 1267.108896][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1267.108909][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 1267.108918][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1267.108924][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1267.108927][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1267.108933][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1267.108939][ 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) 
[ 1267.108946][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1267.108949][ 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) 
[ 1267.108953][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1267.108960][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1267.108962][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1267.108969][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1267.108973][ 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) 
[ 1267.108979][ C2] ? call_timer_fn (kernel/time/timer.c:1748) 
[ 1267.108983][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1267.108987][ C2] ? handle_softirqs (kernel/softirq.c:579) 
[ 1267.108993][ C2] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1267.108996][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1267.108999][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1267.109003][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1267.109008][ C2] ? finish_task_switch.isra.0 (./arch/x86/include/asm/jump_label.h:36 kernel/sched/core.c:4955 kernel/sched/core.c:5270) 
[ 1267.109012][ C2] ? __schedule (kernel/sched/core.c:6787) 
[ 1267.109015][ C2] ? schedule_idle (./arch/x86/include/asm/bitops.h:206 (discriminator 1) ./arch/x86/include/asm/bitops.h:238 (discriminator 1) ./include/linux/thread_info.h:192 (discriminator 1) ./include/linux/thread_info.h:208 (discriminator 1) ./include/linux/sched.h:2164 (discriminator 1) kernel/sched/core.c:6901 (discriminator 1)) 
[ 1267.109018][ C2] ? do_idle (kernel/sched/idle.c:357) 
[ 1267.109023][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1267.109025][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 1267.109030][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1267.109035][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1267.109039][ C2] __put_net (net/core/net_namespace.c:732) 
[ 1267.109046][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1267.109050][ C2] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1267.109056][ C2] call_timer_fn (kernel/time/timer.c:1748) 
[ 1267.109058][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1267.109061][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1267.109063][ C2] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 1267.109066][ C2] ? perf_event_task_tick (kernel/events/core.c:4501) 
[ 1267.109074][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1267.109078][ C2] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372) 
[ 1267.109081][ C2] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1267.109086][ C2] ? __pfx___run_timers (kernel/time/timer.c:2343) 
[ 1267.109089][ C2] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1267.109096][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1267.109099][ 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) 
[ 1267.109103][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1267.109106][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1267.109108][ C2] ? run_timer_base (kernel/time/timer.c:2384 kernel/time/timer.c:2376 kernel/time/timer.c:2393) 
[ 1267.109113][ C2] run_timer_base (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2393) 
[ 1267.109115][ C2] run_timer_softirq (kernel/time/timer.c:2404) 
[ 1267.109118][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 1267.109123][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1267.109126][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 1267.109129][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1267.109132][    C2]  </IRQ>
[ 1267.109133][    C2]  <TASK>
[ 1267.109135][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1267.109138][ C2] RIP: 0010:finish_task_switch.isra.0 (./arch/x86/include/asm/jump_label.h:36 kernel/sched/core.c:4955 kernel/sched/core.c:5270) 
[ 1267.109142][ C2] Code: 4c 89 ff 48 c7 03 00 00 00 00 e8 e6 ce 0c 26 4d 85 e4 75 ba 4c 89 ff e8 ad b4 98 02 e8 98 1f 31 00 fb 65 48 8b 1d f7 62 4a 05 <66> 90 48 83 7d d0 00 74 55 65 48 8b 1d e6 62 4a 05 48 8d bb 18 05
All code
========
   0:	4c 89 ff             	mov    %r15,%rdi
   3:	48 c7 03 00 00 00 00 	movq   $0x0,(%rbx)
   a:	e8 e6 ce 0c 26       	call   0x260ccef5
   f:	4d 85 e4             	test   %r12,%r12
  12:	75 ba                	jne    0xffffffffffffffce
  14:	4c 89 ff             	mov    %r15,%rdi
  17:	e8 ad b4 98 02       	call   0x298b4c9
  1c:	e8 98 1f 31 00       	call   0x311fb9
  21:	fb                   	sti
  22:	65 48 8b 1d f7 62 4a 	mov    %gs:0x54a62f7(%rip),%rbx        # 0x54a6321
  29:	05 
  2a:*	66 90                	xchg   %ax,%ax		<-- trapping instruction
  2c:	48 83 7d d0 00       	cmpq   $0x0,-0x30(%rbp)
  31:	74 55                	je     0x88
  33:	65 48 8b 1d e6 62 4a 	mov    %gs:0x54a62e6(%rip),%rbx        # 0x54a6321
  3a:	05 
  3b:	48                   	rex.W
  3c:	8d                   	.byte 0x8d
  3d:	bb                   	.byte 0xbb
  3e:	18                   	.byte 0x18
  3f:	05                   	.byte 0x5

Code starting with the faulting instruction
===========================================
   0:	66 90                	xchg   %ax,%ax
   2:	48 83 7d d0 00       	cmpq   $0x0,-0x30(%rbp)
   7:	74 55                	je     0x5e
   9:	65 48 8b 1d e6 62 4a 	mov    %gs:0x54a62e6(%rip),%rbx        # 0x54a62f7
  10:	05 
  11:	48                   	rex.W
  12:	8d                   	.byte 0x8d
  13:	bb                   	.byte 0xbb
  14:	18                   	.byte 0x18
  15:	05                   	.byte 0x5
[ 1267.109145][    C2] RSP: 0000:ffffc90000147cd8 EFLAGS: 00000246
[ 1267.109150][    C2] RAX: 0000000000000001 RBX: ffff888001bfa300 RCX: ffffffff9a446b9f
[ 1267.109152][    C2] RDX: 0000000000000000 RSI: ffffffff9ce53ba0 RDI: ffffffff9a134d18
[ 1267.109154][    C2] RBP: ffffc90000147d18 R08: 0000000000000000 R09: 0000000000000000
[ 1267.109155][    C2] R10: ffffffff9e64dad7 R11: ffff888009614ad8 R12: ffff888036139058
[ 1267.109157][    C2] R13: ffff8880096145c0 R14: ffff888036139be8 R15: ffff888036139040
[ 1267.109161][ C2] ? trace_irq_enable.constprop.0 (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:654 ./include/linux/cpumask.h:1210 ./include/trace/events/preemptirq.h:40) 
[ 1267.109168][ C2] ? finish_task_switch.isra.0 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/sched/sched.h:1544 kernel/sched/core.c:5140 kernel/sched/core.c:5258) 
[ 1267.109172][ C2] ? finish_task_switch.isra.0 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/sched/sched.h:1544 kernel/sched/core.c:5140 kernel/sched/core.c:5258) 
[ 1267.109175][ C2] ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:378 arch/x86/kernel/process_64.c:666) 
[ 1267.109183][ C2] __schedule (kernel/sched/core.c:6787) 
[ 1267.109187][ C2] ? __pfx___schedule (kernel/sched/core.c:6658) 
[ 1267.109190][ C2] ? trace_rcu_watching (./include/trace/events/rcu.h:480 (discriminator 21)) 
[ 1267.109195][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1267.109200][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1267.109204][ C2] schedule_idle (./arch/x86/include/asm/bitops.h:206 (discriminator 1) ./arch/x86/include/asm/bitops.h:238 (discriminator 1) ./include/linux/thread_info.h:192 (discriminator 1) ./include/linux/thread_info.h:208 (discriminator 1) ./include/linux/sched.h:2164 (discriminator 1) kernel/sched/core.c:6901 (discriminator 1)) 
[ 1267.109207][ C2] do_idle (kernel/sched/idle.c:357) 
[ 1267.109211][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1267.109214][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 1267.109216][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 1267.109221][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 1286.371972][    C1] INFO: lockdep is turned off.
| [ 1286.372148][    C1] Preemption disabled at:
| [ 1286.372150][ C1] handle_softirqs (kernel/softirq.c:553) 
| [ 1286.372518][    C1] Tainted: [W]=WARN
[ 1286.372520][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1286.372522][    C1] Call Trace:
[ 1286.372524][    C1]  <TASK>
[ 1286.372527][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1286.372537][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 1286.372545][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1286.372551][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1286.372555][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1286.372560][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1286.372567][ 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) 
[ 1286.372574][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1286.372577][ 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) 
[ 1286.372580][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1286.372587][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1286.372590][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1286.372596][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1286.372600][ 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) 
[ 1286.372606][ C1] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1286.372611][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1286.372615][ C1] ? ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1286.372621][ C1] ? ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1286.372625][ 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) 
[ 1286.372628][ C1] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1286.372634][ C1] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1286.372637][ C1] ? __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 1286.372640][ C1] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1286.372642][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 1286.372644][ C1] ? run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 1286.372647][ C1] ? smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1286.372652][ C1] ? kthread (kernel/kthread.c:464) 
[ 1286.372658][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1286.372663][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1286.372667][ C1] __put_net (net/core/net_namespace.c:732) 
[ 1286.372674][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1286.372678][ C1] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1286.372683][ C1] icmp_unreach (net/ipv4/icmp.c:969) 
[ 1286.372688][ 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) 
[ 1286.372693][ C1] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 1286.372698][ C1] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 1286.372706][ C1] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1286.372711][ C1] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1286.372715][ C1] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 1286.372720][ C1] ? ip_fast_csum (lib/checksum.c:99) 
[ 1286.372723][ 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)) 
[ 1286.372728][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1286.372731][ 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) 
[ 1286.372736][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1286.372743][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1286.372746][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1286.372749][ C1] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1286.372753][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 1286.372758][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1286.372761][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1286.372763][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1286.372768][ C1] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1286.372774][ C1] __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 1286.372776][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1286.372780][ C1] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1286.372784][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1286.372788][ C1] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 1286.372791][ C1] ? trace_sched_exit_tp (./include/trace/events/sched.h:855 (discriminator 21)) 
[ 1286.372795][ C1] ? __schedule (kernel/sched/core.c:6658) 
[ 1286.372799][ C1] ? __pfx___schedule (kernel/sched/core.c:6658) 
[ 1286.372803][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1286.372809][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 1286.372813][ C1] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 1286.372817][ C1] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 1286.372820][ C1] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1286.372823][ C1] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 1286.372828][ C1] kthread (kernel/kthread.c:464) 
[ 1286.372832][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1286.372835][ C1] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 1286.372839][ C1] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 1286.372842][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1286.372845][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1286.372849][ C1] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 1286.372852][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1286.372855][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [ 1309.862311][    C0] INFO: lockdep is turned off.
| [ 1309.862524][    C0] Preemption disabled at:
| [ 1309.862526][ C0] schedule_preempt_disabled (kernel/sched/core.c:6933) 
| [ 1309.863025][    C0] Tainted: [W]=WARN
[ 1309.863027][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1309.863030][    C0] Call Trace:
[ 1309.863032][    C0]  <IRQ>
[ 1309.863035][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1309.863043][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 1309.863052][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1309.863057][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1309.863060][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1309.863065][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1309.863071][ C0] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 1309.863079][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1309.863082][ C0] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 1309.863085][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1309.863092][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1309.863095][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1309.863102][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1309.863105][ C0] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1309.863112][ C0] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1309.863116][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1309.863120][ C0] ? ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1309.863126][ C0] ? ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1309.863129][ C0] ? 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) 
[ 1309.863132][ C0] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1309.863139][ C0] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1309.863142][ C0] ? __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 1309.863145][ C0] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1309.863148][ C0] ? handle_softirqs (kernel/softirq.c:579) 
[ 1309.863154][ C0] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1309.863156][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1309.863159][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1309.863164][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1309.863168][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1309.863172][ C0] __put_net (net/core/net_namespace.c:732) 
[ 1309.863178][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1309.863182][ C0] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1309.863188][ C0] icmp_unreach (net/ipv4/icmp.c:969) 
[ 1309.863193][ C0] ? __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) 
[ 1309.863198][ C0] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 1309.863203][ C0] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 1309.863208][ C0] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1309.863212][ C0] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 1309.863216][ C0] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1309.863220][ C0] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 1309.863224][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1309.863228][ C0] ? ip_fast_csum (lib/checksum.c:99) 
[ 1309.863231][ C0] ? 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)) 
[ 1309.863237][ C0] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1309.863240][ C0] 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) 
[ 1309.863244][ C0] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1309.863251][ C0] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1309.863254][ C0] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1309.863257][ C0] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1309.863262][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 1309.863266][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1309.863269][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1309.863272][ C0] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1309.863276][ C0] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1309.863281][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1309.863286][ C0] __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 1309.863289][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1309.863292][ C0] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1309.863298][ C0] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 1309.863300][ C0] ? 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) 
[ 1309.863309][ C0] ? spin_bug (./include/linux/pid.h:232 kernel/locking/spinlock_debug.c:64 kernel/locking/spinlock_debug.c:78) 
[ 1309.863313][ C0] ? __pfx_sched_balance_domains (kernel/sched/fair.c:12192) 
[ 1309.863320][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 1309.863325][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1309.863328][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 1309.863331][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1309.863334][    C0]  </IRQ>
[ 1309.863335][    C0]  <TASK>
[ 1309.863337][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1309.863341][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 1309.863345][ C0] 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
[ 1309.863349][    C0] RSP: 0018:ffffffff9d807df8 EFLAGS: 00000246
[ 1309.863354][    C0] RAX: 0000000000000000 RBX: 1ffffffff3b00fc3 RCX: ffffffff9ca9f5d9
[ 1309.863356][    C0] RDX: ffffed1006c066fb RSI: ffffffff9ce53ba0 RDI: ffffffff9a19018f
[ 1309.863358][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c066fa
[ 1309.863359][    C0] R10: ffff8880360337d3 R11: ffff88803602834c R12: 0000000000000000
[ 1309.863361][    C0] R13: ffffffff9d843240 R14: dffffc0000000000 R15: 0000000000014770
[ 1309.863365][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 1309.863369][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1309.863375][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 1309.863378][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1309.863381][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1309.863384][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 1309.863388][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 1309.863394][ C0] do_idle (kernel/sched/idle.c:325) 
[ 1309.863397][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1309.863400][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 1309.863404][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 1309.863412][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 1309.863417][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 1309.863420][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 1320.355527][    C3] INFO: lockdep is turned off.
| [ 1320.355724][    C3] Preemption disabled at:
| [ 1320.355726][ C3] 0x0 
| [ 1320.356081][    C3] Tainted: [W]=WARN
[ 1320.356083][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1320.356085][    C3] Call Trace:
[ 1320.356088][    C3]  <IRQ>
[ 1320.356091][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1320.356103][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 1320.356112][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1320.356118][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1320.356121][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1320.356126][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1320.356133][ 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) 
[ 1320.356141][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1320.356143][ 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) 
[ 1320.356147][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1320.356154][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1320.356157][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1320.356164][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1320.356168][ 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) 
[ 1320.356174][ C3] ? call_timer_fn (kernel/time/timer.c:1748) 
[ 1320.356178][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1320.356182][ C3] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 1320.356188][ C3] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 1320.356192][ C3] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 1320.356194][ C3] ? handle_softirqs (kernel/softirq.c:579) 
[ 1320.356200][ C3] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1320.356203][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1320.356206][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1320.356210][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1320.356215][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 1320.356218][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 1320.356221][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1320.356225][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1320.356229][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1320.356234][ C3] __put_net (net/core/net_namespace.c:732) 
[ 1320.356240][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1320.356244][ C3] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1320.356251][ C3] call_timer_fn (kernel/time/timer.c:1748) 
[ 1320.356253][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1320.356255][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1320.356258][ C3] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 1320.356263][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1320.356267][ C3] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372) 
[ 1320.356271][ C3] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1320.356276][ C3] ? __pfx___run_timers (kernel/time/timer.c:2343) 
[ 1320.356280][ 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) 
[ 1320.356284][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1320.356287][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1320.356290][ C3] ? timer_expire_remote (kernel/time/timer.c:2384 kernel/time/timer.c:2376 kernel/time/timer.c:2135) 
[ 1320.356295][ C3] timer_expire_remote (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2135) 
[ 1320.356298][ C3] 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) 
[ 1320.356303][ C3] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 1320.356306][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1320.356309][ C3] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 1320.356312][ 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) 
[ 1320.356315][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1320.356319][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1320.356323][ C3] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 1320.356328][ C3] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 1320.356332][ C3] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 1320.356337][ C3] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 1320.356340][ C3] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 1320.356342][ 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) 
[ 1320.356346][ C3] ? spin_bug (kernel/locking/spinlock_debug.c:64 kernel/locking/spinlock_debug.c:78) 
[ 1320.356349][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1320.356352][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1320.356357][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 1320.356362][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1320.356365][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 1320.356368][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1320.356370][    C3]  </IRQ>
[ 1320.356372][    C3]  <TASK>
[ 1320.356373][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1320.356376][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 1320.356380][ C3] 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
[ 1320.356383][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[ 1320.356388][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffff9ca9f5d9
[ 1320.356390][    C3] RDX: ffffed1006c366fb RSI: ffffffff9ce53ba0 RDI: ffffffff9a19018f
[ 1320.356392][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c366fa
[ 1320.356393][    C3] R10: ffff8880361b37d3 R11: ffffffffa0566828 R12: 0000000000000000
[ 1320.356395][    C3] R13: ffff888001bfc5c0 R14: dffffc0000000000 R15: 0000000000000000
[ 1320.356399][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 1320.356403][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1320.356408][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 1320.356411][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1320.356413][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1320.356417][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 1320.356420][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 1320.356425][ C3] do_idle (kernel/sched/idle.c:325) 
[ 1320.356429][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1320.356432][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 1320.356435][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 1320.356439][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 1337.255111][    C3] INFO: lockdep is turned off.
| [ 1337.255305][    C3] Preemption disabled at:
| [ 1337.255307][ C3] 0x0 
| [ 1337.255669][    C3] Tainted: [W]=WARN
[ 1337.255671][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1337.255673][    C3] Call Trace:
[ 1337.255676][    C3]  <IRQ>
[ 1337.255679][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1337.255691][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 1337.255700][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1337.255706][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1337.255710][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1337.255715][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1337.255721][ 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) 
[ 1337.255728][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1337.255731][ 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) 
[ 1337.255734][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1337.255741][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1337.255744][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1337.255751][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1337.255754][ 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) 
[ 1337.255760][ C3] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1337.255765][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1337.255769][ C3] ? ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1337.255776][ C3] ? ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1337.255779][ C3] ? 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) 
[ 1337.255782][ C3] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1337.255788][ C3] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1337.255792][ C3] ? __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 1337.255795][ C3] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1337.255798][ C3] ? handle_softirqs (kernel/softirq.c:579) 
[ 1337.255803][ C3] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1337.255806][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1337.255808][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1337.255813][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1337.255818][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1337.255822][ C3] __put_net (net/core/net_namespace.c:732) 
[ 1337.255828][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1337.255832][ C3] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1337.255837][ C3] icmp_unreach (net/ipv4/icmp.c:969) 
[ 1337.255842][ C3] ? __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) 
[ 1337.255848][ C3] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 1337.255852][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 1337.255858][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1337.255862][ C3] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1337.255866][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 1337.255869][ C3] ? call_timer_fn (kernel/time/timer.c:1752) 
[ 1337.255873][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1337.255876][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1337.255879][ C3] ? ip_fast_csum (lib/checksum.c:99) 
[ 1337.255882][ C3] ? 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)) 
[ 1337.255886][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1337.255890][ C3] 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) 
[ 1337.255894][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1337.255901][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1337.255905][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1337.255908][ C3] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1337.255912][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 1337.255917][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1337.255920][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1337.255923][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1337.255928][ C3] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1337.255934][ C3] __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 1337.255936][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1337.255940][ C3] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1337.255946][ C3] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 1337.255948][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 ./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1337.255954][ C3] ? __pfx_try_to_wake_up (kernel/sched/core.c:4185) 
[ 1337.255959][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1337.255962][ C3] ? swake_up_one (./include/linux/list.h:373 kernel/sched/swait.c:25 kernel/sched/swait.c:52) 
[ 1337.255969][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1337.255973][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 1337.255978][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1337.255981][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 1337.255984][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1337.255987][    C3]  </IRQ>
[ 1337.255988][    C3]  <TASK>
[ 1337.255989][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1337.255994][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 1337.255998][ C3] 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
[ 1337.256002][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[ 1337.256006][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffff9ca9f5d9
[ 1337.256008][    C3] RDX: ffffed1006c366fb RSI: ffffffff9ce53ba0 RDI: ffffffff9a19018f
[ 1337.256010][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c366fa
[ 1337.256012][    C3] R10: ffff8880361b37d3 R11: ffffffffa0566828 R12: 0000000000000000
[ 1337.256014][    C3] R13: ffff888001bfc5c0 R14: dffffc0000000000 R15: 0000000000000000
[ 1337.256018][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 1337.256022][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1337.256027][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 1337.256031][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1337.256034][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1337.256037][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 1337.256040][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 1337.256047][ C3] do_idle (kernel/sched/idle.c:325) 
[ 1337.256050][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1337.256053][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 1337.256057][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 1337.256061][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 1344.931276][    C1] INFO: lockdep is turned off.
| [ 1344.931459][    C1] Preemption disabled at:
| [ 1344.931461][ C1] 0x0 
| [ 1344.931819][    C1] Tainted: [W]=WARN
[ 1344.931820][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1344.931823][    C1] Call Trace:
[ 1344.931825][    C1]  <IRQ>
[ 1344.931829][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1344.931841][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 1344.931850][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1344.931856][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1344.931859][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1344.931865][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1344.931872][ 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) 
[ 1344.931879][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1344.931882][ 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) 
[ 1344.931885][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1344.931892][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1344.931895][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1344.931903][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1344.931906][ 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) 
[ 1344.931913][ C1] ? call_timer_fn (kernel/time/timer.c:1748) 
[ 1344.931918][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1344.931921][ C1] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 1344.931928][ C1] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 1344.931931][ C1] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 1344.931933][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 1344.931939][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1344.931942][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1344.931945][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1344.931949][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1344.931954][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 1344.931957][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 1344.931961][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1344.931964][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1344.931969][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1344.931973][ C1] __put_net (net/core/net_namespace.c:732) 
[ 1344.931980][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1344.931984][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1344.931990][ C1] call_timer_fn (kernel/time/timer.c:1748) 
[ 1344.931993][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1344.931995][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1344.931998][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 1344.932002][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1344.932006][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1344.932011][ C1] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372) 
[ 1344.932014][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1344.932019][ C1] ? __pfx___run_timers (kernel/time/timer.c:2343) 
[ 1344.932023][ 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) 
[ 1344.932027][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1344.932030][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1344.932033][ C1] ? timer_expire_remote (kernel/time/timer.c:2384 kernel/time/timer.c:2376 kernel/time/timer.c:2135) 
[ 1344.932038][ C1] timer_expire_remote (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2135) 
[ 1344.932041][ 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) 
[ 1344.932046][ C1] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 1344.932049][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1344.932051][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1344.932054][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 1344.932057][ 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) 
[ 1344.932060][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1344.932064][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1344.932068][ C1] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 1344.932073][ C1] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 1344.932077][ C1] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 1344.932082][ C1] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 1344.932085][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 1344.932087][ 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) 
[ 1344.932091][ C1] ? spin_bug (./include/linux/pid.h:232 kernel/locking/spinlock_debug.c:64 kernel/locking/spinlock_debug.c:78) 
[ 1344.932094][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1344.932098][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1344.932102][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 1344.932107][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1344.932110][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 1344.932113][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1344.932115][    C1]  </IRQ>
[ 1344.932116][    C1]  <TASK>
[ 1344.932118][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1344.932121][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 1344.932125][ 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
[ 1344.932128][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[ 1344.932133][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffff9ca9f5d9
[ 1344.932135][    C1] RDX: ffffed1006c166fb RSI: ffffffff9ce53ba0 RDI: ffffffff9a19018f
[ 1344.932136][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c166fa
[ 1344.932138][    C1] R10: ffff8880360b37d3 R11: ffff88801c7d0558 R12: 0000000000000000
[ 1344.932140][    C1] R13: ffff888001bf8040 R14: dffffc0000000000 R15: 0000000000000000
[ 1344.932144][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 1344.932147][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1344.932152][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 1344.932155][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1344.932158][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1344.932161][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 1344.932165][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 1344.932170][ C1] do_idle (kernel/sched/idle.c:325) 
[ 1344.932173][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1344.932176][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 1344.932179][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 1344.932184][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 1364.009143][    C3] INFO: lockdep is turned off.
| [ 1364.009482][    C3] Preemption disabled at:
| [ 1364.009485][ C3] 0x0 
| [ 1364.010110][    C3] Tainted: [W]=WARN
[ 1364.010112][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1364.010116][    C3] Call Trace:
[ 1364.010119][    C3]  <IRQ>
[ 1364.010124][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1364.010139][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 1364.010151][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1364.010160][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1364.010166][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1364.010173][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1364.010182][ 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) 
[ 1364.010192][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1364.010197][ 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) 
[ 1364.010202][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1364.010212][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1364.010217][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1364.010227][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1364.010232][ 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) 
[ 1364.010240][ C3] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1364.010247][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1364.010252][ C3] ? ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1364.010259][ C3] ? ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1364.010263][ C3] ? 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) 
[ 1364.010266][ C3] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1364.010272][ C3] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1364.010275][ C3] ? __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 1364.010278][ C3] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1364.010280][ C3] ? handle_softirqs (kernel/softirq.c:579) 
[ 1364.010286][ C3] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1364.010288][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1364.010291][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1364.010296][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1364.010300][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1364.010305][ C3] __put_net (net/core/net_namespace.c:732) 
[ 1364.010311][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1364.010315][ C3] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1364.010320][ C3] icmp_unreach (net/ipv4/icmp.c:969) 
[ 1364.010325][ C3] ? __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) 
[ 1364.010331][ C3] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 1364.010336][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 1364.010341][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1364.010345][ C3] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1364.010349][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 1364.010353][ C3] ? call_timer_fn (kernel/time/timer.c:1752) 
[ 1364.010357][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1364.010359][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1364.010362][ C3] ? ip_fast_csum (lib/checksum.c:99) 
[ 1364.010365][ C3] ? 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)) 
[ 1364.010370][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1364.010373][ C3] 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) 
[ 1364.010377][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1364.010384][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1364.010387][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1364.010390][ C3] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 1364.010395][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 1364.010399][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1364.010402][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1364.010405][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 1364.010410][ C3] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 1364.010416][ C3] __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 1364.010419][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1364.010422][ C3] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 1364.010429][ C3] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 1364.010431][ C3] ? 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) 
[ 1364.010441][ C3] ? __pfx_sched_balance_domains (kernel/sched/fair.c:12192) 
[ 1364.010446][ C3] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 1364.010454][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 1364.010459][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1364.010462][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 1364.010465][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1364.010467][    C3]  </IRQ>
[ 1364.010469][    C3]  <TASK>
[ 1364.010470][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1364.010475][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 1364.010479][ C3] 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
[ 1364.010482][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[ 1364.010486][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffff9ca9f5d9
[ 1364.010489][    C3] RDX: ffffed1006c366fb RSI: ffffffff9ce53ba0 RDI: ffffffff9a19018f
[ 1364.010491][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c366fa
[ 1364.010493][    C3] R10: ffff8880361b37d3 R11: ffffffffa0566828 R12: 0000000000000000
[ 1364.010495][    C3] R13: ffff888001bfc5c0 R14: dffffc0000000000 R15: 0000000000000000
[ 1364.010499][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 1364.010503][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1364.010509][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 1364.010513][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1364.010516][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1364.010519][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 1364.010523][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 1364.010529][ C3] do_idle (kernel/sched/idle.c:325) 
[ 1364.010532][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1364.010535][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 1364.010538][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 1364.010543][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [ 1389.986910][    C1] INFO: lockdep is turned off.
| [ 1389.987095][    C1] Preemption disabled at:
| [ 1389.987097][ C1] handle_softirqs (kernel/softirq.c:553) 
| [ 1389.987472][    C1] Tainted: [W]=WARN
[ 1389.987474][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1389.987476][    C1] Workqueue: events virtio_fs_requests_done_work
[ 1389.987487][    C1] Call Trace:
[ 1389.987489][    C1]  <IRQ>
[ 1389.987492][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1389.987503][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 1389.987511][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1389.987517][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1389.987520][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1389.987526][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1389.987532][ 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) 
[ 1389.987539][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1389.987542][ 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) 
[ 1389.987545][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1389.987551][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1389.987555][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1389.987562][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1389.987565][ 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) 
[ 1389.987571][ C1] ? call_timer_fn (kernel/time/timer.c:1748) 
[ 1389.987576][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1389.987579][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 1389.987582][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1389.987585][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1389.987588][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1389.987592][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1389.987597][ C1] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3116) 
[ 1389.987603][ C1] ? kfree (./include/linux/kmemleak.h:49 mm/slub.c:2305 mm/slub.c:4642 mm/slub.c:4841) 
[ 1389.987609][ C1] ? virtio_fs_request_complete (fs/fuse/virtio_fs.c:758 fs/fuse/virtio_fs.c:776) 
[ 1389.987612][ C1] ? virtio_fs_requests_done_work (fs/fuse/virtio_fs.c:851) 
[ 1389.987615][ C1] ? process_one_work (kernel/workqueue.c:3238) 
[ 1389.987619][ C1] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 1389.987621][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1389.987626][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1389.987631][ C1] __put_net (net/core/net_namespace.c:732) 
[ 1389.987637][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1389.987641][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1389.987648][ C1] call_timer_fn (kernel/time/timer.c:1748) 
[ 1389.987650][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1389.987652][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1389.987655][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 1389.987660][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1389.987664][ C1] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372) 
[ 1389.987668][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1389.987673][ C1] ? __pfx___run_timers (kernel/time/timer.c:2343) 
[ 1389.987675][ C1] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1389.987682][ C1] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1389.987685][ 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) 
[ 1389.987689][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1389.987692][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1389.987695][ C1] ? run_timer_base (kernel/time/timer.c:2384 kernel/time/timer.c:2376 kernel/time/timer.c:2393) 
[ 1389.987699][ C1] run_timer_base (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2393) 
[ 1389.987705][ C1] run_timer_softirq (kernel/time/timer.c:2404) 
[ 1389.987707][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 1389.987712][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1389.987715][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 1389.987718][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1389.987721][    C1]  </IRQ>
[ 1389.987722][    C1]  <TASK>
[ 1389.987724][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1389.987726][ C1] RIP: 0010:__call_rcu_common.constprop.0 (kernel/rcu/tree.c:3116) 
[ 1389.987730][ C1] Code: 00 00 4c 89 ea 48 89 ee 4c 89 e7 e8 9d ac ff ff 48 85 db 75 24 9c 58 f6 c4 02 0f 85 6f 02 00 00 48 85 db 74 01 fb 48 83 c4 08 <5b> 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 af ad 1b 00 eb d5
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	4c 89 ea             	mov    %r13,%rdx
   5:	48 89 ee             	mov    %rbp,%rsi
   8:	4c 89 e7             	mov    %r12,%rdi
   b:	e8 9d ac ff ff       	call   0xffffffffffffacad
  10:	48 85 db             	test   %rbx,%rbx
  13:	75 24                	jne    0x39
  15:	9c                   	pushf
  16:	58                   	pop    %rax
  17:	f6 c4 02             	test   $0x2,%ah
  1a:	0f 85 6f 02 00 00    	jne    0x28f
  20:	48 85 db             	test   %rbx,%rbx
  23:	74 01                	je     0x26
  25:	fb                   	sti
  26:	48 83 c4 08          	add    $0x8,%rsp
  2a:*	5b                   	pop    %rbx		<-- trapping instruction
  2b:	5d                   	pop    %rbp
  2c:	41 5c                	pop    %r12
  2e:	41 5d                	pop    %r13
  30:	41 5e                	pop    %r14
  32:	41 5f                	pop    %r15
  34:	c3                   	ret
  35:	cc                   	int3
  36:	cc                   	int3
  37:	cc                   	int3
  38:	cc                   	int3
  39:	e8 af ad 1b 00       	call   0x1baded
  3e:	eb d5                	jmp    0x15

Code starting with the faulting instruction
===========================================
   0:	5b                   	pop    %rbx
   1:	5d                   	pop    %rbp
   2:	41 5c                	pop    %r12
   4:	41 5d                	pop    %r13
   6:	41 5e                	pop    %r14
   8:	41 5f                	pop    %r15
   a:	c3                   	ret
   b:	cc                   	int3
   c:	cc                   	int3
   d:	cc                   	int3
   e:	cc                   	int3
   f:	e8 af ad 1b 00       	call   0x1badc3
  14:	eb d5                	jmp    0xffffffffffffffeb
[ 1389.987734][    C1] RSP: 0018:ffffc90002c3fa78 EFLAGS: 00000286
[ 1389.987737][    C1] RAX: 0000000000000046 RBX: 0000000000000200 RCX: ffffffff9a446b9f
[ 1389.987739][    C1] RDX: 0000000000000000 RSI: ffffffff9ce53ba0 RDI: ffffffff9a28bf01
[ 1389.987741][    C1] RBP: ffff8880054c82f8 R08: 0000000000000000 R09: 0000000000000000
[ 1389.987743][    C1] R10: ffffffff9e64dad7 R11: ffffc90002c3f748 R12: ffff8880360b9e80
[ 1389.987744][    C1] R13: 0000000000000282 R14: 0000000000000000 R15: ffffffff9dbafa00
[ 1389.987748][ C1] ? trace_irq_enable.constprop.0 (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:654 ./include/linux/cpumask.h:1210 ./include/trace/events/preemptirq.h:40) 
[ 1389.987754][ C1] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3115) 
[ 1389.987760][ C1] kfree (./include/linux/kmemleak.h:49 mm/slub.c:2305 mm/slub.c:4642 mm/slub.c:4841) 
[ 1389.987763][ C1] ? virtio_fs_request_complete (fs/fuse/virtio_fs.c:758 fs/fuse/virtio_fs.c:776) 
[ 1389.987768][ C1] virtio_fs_request_complete (fs/fuse/virtio_fs.c:758 fs/fuse/virtio_fs.c:776) 
[ 1389.987772][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1389.987777][ C1] virtio_fs_requests_done_work (fs/fuse/virtio_fs.c:851) 
[ 1389.987782][ C1] ? __pfx_virtio_fs_requests_done_work (fs/fuse/virtio_fs.c:814) 
[ 1389.987788][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1389.987792][ C1] process_one_work (kernel/workqueue.c:3238) 
[ 1389.987797][ C1] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 1389.987802][ C1] ? assign_work (kernel/workqueue.c:1200) 
[ 1389.987809][ C1] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 1389.987814][ C1] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 1389.987817][ C1] kthread (kernel/kthread.c:464) 
[ 1389.987824][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1389.987828][ C1] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 1389.987832][ C1] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 1389.987836][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1389.987839][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1389.987843][ C1] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 1389.987845][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1389.987849][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [ 1447.333232][    C3] INFO: lockdep is turned off.
| [ 1447.333428][    C3] Preemption disabled at:
| [ 1447.333430][ C3] handle_softirqs (kernel/softirq.c:553) 
| [ 1447.333853][    C3] Tainted: [W]=WARN
[ 1447.333855][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1447.333857][    C3] Call Trace:
[ 1447.333860][    C3]  <IRQ>
[ 1447.333862][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1447.333873][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 1447.333881][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1447.333887][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1447.333890][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 1447.333896][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1447.333902][ 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) 
[ 1447.333910][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 1447.333913][ 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) 
[ 1447.333916][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1447.333923][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1447.333926][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 1447.333933][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 1447.333936][ 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) 
[ 1447.333943][ C3] ? call_timer_fn (kernel/time/timer.c:1748) 
[ 1447.333948][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 1447.333951][ C3] ? handle_softirqs (kernel/softirq.c:579) 
[ 1447.333954][ C3] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1447.333956][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1447.333959][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1447.333963][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1447.333968][ C3] ? unwind_next_frame (arch/x86/kernel/unwind_orc.c:505) 
[ 1447.333973][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1447.333979][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 1447.333984][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 1447.333990][ C3] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 1447.333994][ C3] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3092) 
[ 1447.333999][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1447.334003][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1447.334008][ C3] __put_net (net/core/net_namespace.c:732) 
[ 1447.334014][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 1447.334018][ C3] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1447.334024][ C3] call_timer_fn (kernel/time/timer.c:1748) 
[ 1447.334027][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1447.334029][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1737) 
[ 1447.334032][ C3] ? __pfx_call_timer_fn (kernel/time/timer.c:1724) 
[ 1447.334034][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1447.334039][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1447.334043][ C3] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372) 
[ 1447.334047][ C3] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1447.334052][ C3] ? __pfx___run_timers (kernel/time/timer.c:2343) 
[ 1447.334055][ C3] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1447.334060][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1447.334063][ 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) 
[ 1447.334067][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1447.334071][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1447.334073][ C3] ? run_timer_base (kernel/time/timer.c:2384 kernel/time/timer.c:2376 kernel/time/timer.c:2393) 
[ 1447.334077][ C3] run_timer_base (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2393) 
[ 1447.334080][ C3] run_timer_softirq (kernel/time/timer.c:2404) 
[ 1447.334083][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 1447.334088][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1447.334091][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 1447.334094][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 1447.334097][    C3]  </IRQ>
[ 1447.334098][    C3]  <TASK>
[ 1447.334099][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1447.334102][ C3] RIP: 0010:unwind_next_frame (arch/x86/kernel/unwind_orc.c:505) 
[ 1447.334106][ C3] Code: 4c 24 20 e8 3c f8 ff ff 4c 8b 4c 24 20 48 85 c0 49 89 c6 0f 84 a8 02 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8d 7e 05 4c 89 fa <48> c1 ea 03 0f b6 04 02 4c 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85
All code
========
   0:	4c 24 20             	rex.WR and $0x20,%al
   3:	e8 3c f8 ff ff       	call   0xfffffffffffff844
   8:	4c 8b 4c 24 20       	mov    0x20(%rsp),%r9
   d:	48 85 c0             	test   %rax,%rax
  10:	49 89 c6             	mov    %rax,%r14
  13:	0f 84 a8 02 00 00    	je     0x2c1
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df 
  23:	4d 8d 7e 05          	lea    0x5(%r14),%r15
  27:	4c 89 fa             	mov    %r15,%rdx
  2a:*	48 c1 ea 03          	shr    $0x3,%rdx		<-- trapping instruction
  2e:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax
  32:	4c 89 fa             	mov    %r15,%rdx
  35:	83 e2 07             	and    $0x7,%edx
  38:	38 d0                	cmp    %dl,%al
  3a:	7f 08                	jg     0x44
  3c:	84 c0                	test   %al,%al
  3e:	0f                   	.byte 0xf
  3f:	85                   	.byte 0x85

Code starting with the faulting instruction
===========================================
   0:	48 c1 ea 03          	shr    $0x3,%rdx
   4:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax
   8:	4c 89 fa             	mov    %r15,%rdx
   b:	83 e2 07             	and    $0x7,%edx
   e:	38 d0                	cmp    %dl,%al
  10:	7f 08                	jg     0x1a
  12:	84 c0                	test   %al,%al
  14:	0f                   	.byte 0xf
  15:	85                   	.byte 0x85
[ 1447.334110][    C3] RSP: 0018:ffffc900038af7f0 EFLAGS: 00000286
[ 1447.334114][    C3] RAX: dffffc0000000000 RBX: 1ffff92000715f07 RCX: dffffc0000000000
[ 1447.334117][    C3] RDX: ffffffff9ea2a9cb RSI: 0000000000000000 RDI: ffffffff9e6dfffc
[ 1447.334118][    C3] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffc900038af931
[ 1447.334120][    C3] R10: ffffffff9a015687 R11: ffffc900038af930 R12: ffffc900038af948
[ 1447.334122][    C3] R13: ffffc900038af8f0 R14: ffffffff9ea2a9c6 R15: ffffffff9ea2a9cb
[ 1447.334125][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 1447.334130][ C3] ? mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 1447.334134][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1447.334138][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 1447.334142][ C3] ? mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 1447.334144][ C3] ? kernel_text_address (kernel/extable.c:99) 
[ 1447.334148][ C3] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 1447.334152][ C3] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1447.334157][ C3] ? mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 1447.334161][ C3] stack_trace_save (kernel/stacktrace.c:123) 
[ 1447.334165][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 1447.334170][ C3] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 1447.334173][ C3] kasan_save_stack (mm/kasan/common.c:48) 
[ 1447.334176][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 1447.334179][ C3] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 1447.334181][ C3] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3092) 
[ 1447.334184][ C3] ? exit_mmap (mm/mmap.c:1311) 
[ 1447.334188][ C3] ? mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 1447.334191][ C3] ? __x64_sys_exit_group (kernel/exit.c:1117) 
[ 1447.334195][ C3] ? x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 1447.334201][ C3] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1447.334206][ C3] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1447.334209][ C3] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 1447.334212][ 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) 
[ 1447.334216][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1447.334219][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1447.334223][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1447.334226][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1447.334233][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1447.334237][ C3] ? debug_object_active_state (lib/debugobjects.c:1056) 
[ 1447.334242][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1447.334245][ C3] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2126 arch/x86/mm/physaddr.c:65) 
[ 1447.334249][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1447.334252][ C3] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1447.334256][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1447.334259][ C3] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:104 ./include/linux/rcupdate.h:955 ./include/linux/mmzone.h:2126 arch/x86/mm/physaddr.c:65) 
[ 1447.334263][ C3] kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 1447.334266][ C3] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4672) 
[ 1447.334271][ C3] __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3092) 
[ 1447.334276][ C3] exit_mmap (mm/mmap.c:1311) 
[ 1447.334280][ C3] ? __pfx_exit_mmap (mm/mmap.c:1259) 
[ 1447.334284][ C3] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:727 kernel/locking/mutex.c:746) 
[ 1447.334288][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 1447.334292][ C3] ? __mutex_unlock_slowpath (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4329 ./include/linux/atomic/atomic-long.h:1506 ./include/linux/atomic/atomic-instrumented.h:4481 kernel/locking/mutex.c:924) 
[ 1447.334300][ C3] mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 1447.334304][ C3] exit_mm (kernel/exit.c:596) 
[ 1447.334307][ C3] do_exit (kernel/exit.c:950) 
[ 1447.334312][ C3] do_group_exit (kernel/exit.c:1089) 
[ 1447.334316][ C3] __x64_sys_exit_group (kernel/exit.c:1117) 
[ 1447.334319][ C3] x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 1447.334322][ C3] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1447.334326][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1447.334329][    C3] RIP: 0033:0x7f306a7a6abd
[ 1447.334332][ C3] Code: Unable to access opcode bytes at 0x7f306a7a6a93.

Code starting with the faulting instruction
===========================================
[ 1447.334334][    C3] RSP: 002b:00007ffee6397d28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 1447.334337][    C3] RAX: ffffffffffffffda RBX: 00007f306a8839c0 RCX: 00007f306a7a6abd
[ 1447.334339][    C3] RDX: 00000000000000e7 RSI: ffffffffffffff80 RDI: 0000000000000000
[ 1447.334340][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000028
[ 1447.334342][    C3] R10: 00007ffee6397bb0 R11: 0000000000000246 R12: 00007f306a8839c0
[ 1447.334344][    C3] R13: 00007f306a888ee0 R14: 0000000000000002 R15: 00007f306a888ec8
| [ 2447.435876][    C3] INFO: lockdep is turned off.
| [ 2447.436085][    C3] Preemption disabled at:
| [ 2447.436087][ C3] __dev_queue_xmit (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:894 net/core/dev.c:4638) 
| [ 2447.436500][    C3] Tainted: [W]=WARN
[ 2447.436502][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2447.436504][    C3] Workqueue: events mptcp_worker
[ 2447.436511][    C3] Call Trace:
[ 2447.436514][    C3]  <IRQ>
[ 2447.436516][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 2447.436523][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 2447.436530][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 2447.436534][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 2447.436538][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 2447.436542][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.436547][ 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) 
[ 2447.436553][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 2447.436556][ 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) 
[ 2447.436559][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 2447.436565][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 2447.436568][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 2447.436573][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 2447.436577][ 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) 
[ 2447.436581][ C3] ? ip_rcv_core (./include/linux/skbuff.h:3306 net/ipv4/ip_input.c:538) 
[ 2447.436586][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 2447.436589][ C3] ? __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 2447.436592][ C3] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 2447.436594][ C3] ? handle_softirqs (kernel/softirq.c:579) 
[ 2447.436599][ C3] ? do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 2447.436602][ C3] ? __local_bh_enable_ip (kernel/softirq.c:407) 
[ 2447.436604][ C3] ? __dev_queue_xmit (net/core/dev.c:4741) 
[ 2447.436607][ C3] ? ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 2447.436611][ C3] ? ip_output (./include/linux/netfilter.h:306 net/ipv4/ip_output.c:433) 
[ 2447.436613][ C3] ? __ip_queue_xmit (./include/net/dst.h:459 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 2447.436616][ C3] ? __tcp_transmit_skb (net/ipv4/tcp_output.c:1479 (discriminator 4)) 
[ 2447.436620][ C3] ? tcp_write_xmit (net/ipv4/tcp_output.c:2838) 
[ 2447.436622][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 2447.436626][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.436630][ C3] __put_net (net/core/net_namespace.c:732) 
[ 2447.436635][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 2447.436639][ C3] ip_rcv_core (./include/linux/skbuff.h:3306 net/ipv4/ip_input.c:538) 
[ 2447.436643][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 2447.436647][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 2447.436651][ C3] ip_rcv (net/ipv4/ip_input.c:563) 
[ 2447.436654][ C3] ? __pfx_debug_object_activate (lib/debugobjects.c:805) 
[ 2447.436658][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 2447.436663][ C3] ? switch_hrtimer_base (kernel/time/hrtimer.c:232 kernel/time/hrtimer.c:258) 
[ 2447.436669][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 2447.436672][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 2447.436675][ C3] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 2447.436680][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 2447.436684][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.436687][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 2447.436689][ C3] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 2447.436694][ C3] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 2447.436699][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.436705][ C3] __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 2447.436708][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.436712][ C3] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 2447.436718][ C3] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 2447.436720][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 2447.436726][ C3] ? __pfx_sched_balance_domains (kernel/sched/fair.c:12192) 
[ 2447.436730][ C3] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 2447.436737][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 2447.436742][ C3] ? __dev_queue_xmit (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:908 net/core/dev.c:4740) 
[ 2447.436746][ C3] do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 2447.436749][    C3]  </IRQ>
[ 2447.436750][    C3]  <TASK>
[ 2447.436751][ C3] __local_bh_enable_ip (kernel/softirq.c:407) 
[ 2447.436755][ C3] ? __dev_queue_xmit (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:908 net/core/dev.c:4740) 
[ 2447.436758][ C3] __dev_queue_xmit (net/core/dev.c:4741) 
[ 2447.436762][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 2447.436765][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 2447.436769][ C3] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 2447.436775][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.436778][ C3] ? __pfx___dev_queue_xmit (net/core/dev.c:4621) 
[ 2447.436783][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.436786][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2447.436791][ C3] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:836 ./include/net/neighbour.h:493) 
[ 2447.436794][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 2447.436800][ C3] ? ip_finish_output2 (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 net/ipv4/ip_output.c:228) 
[ 2447.436804][ C3] ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 2447.436807][ 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) 
[ 2447.436810][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.436813][ C3] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 2447.436818][ C3] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) 
[ 2447.436821][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 2447.436824][ 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) 
[ 2447.436828][ C3] ip_output (./include/linux/netfilter.h:306 net/ipv4/ip_output.c:433) 
[ 2447.436831][ C3] ? __ip_local_out (./include/linux/skbuff.h:1156 net/ipv4/ip_output.c:119) 
[ 2447.436834][ C3] ? __pfx_ip_output (net/ipv4/ip_output.c:427) 
[ 2447.436837][ C3] ? ipv4_dst_check (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/ipv4/route.c:401 net/ipv4/route.c:1213) 
[ 2447.436840][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.436843][ C3] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 2447.436849][ C3] __ip_queue_xmit (./include/net/dst.h:459 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 2447.436853][ 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)) 
[ 2447.436858][ C3] __tcp_transmit_skb (net/ipv4/tcp_output.c:1479 (discriminator 4)) 
[ 2447.436865][ C3] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1300) 
[ 2447.436867][ C3] ? __pfx_mptcp_established_options (net/mptcp/options.c:832) 
[ 2447.436874][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.436877][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2447.436882][ C3] tcp_write_xmit (net/ipv4/tcp_output.c:2838) 
[ 2447.436888][ C3] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1873) 
[ 2447.436892][ C3] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2747) 
[ 2447.436895][ C3] ? inet_sk_state_store (net/ipv4/af_inet.c:1353) 
[ 2447.436899][ C3] ? tcp_set_state (net/ipv4/tcp.c:2926 (discriminator 53)) 
[ 2447.436903][ C3] ? __pfx_tcp_set_state (net/ipv4/tcp.c:2926) 
[ 2447.436907][ C3] __tcp_push_pending_frames (net/ipv4/tcp_output.c:3021) 
[ 2447.436911][ C3] __tcp_close (net/ipv4/tcp.c:3186) 
[ 2447.436914][ C3] ? __mptcp_close_ssk (net/mptcp/protocol.c:2370) 
[ 2447.436917][ C3] ? __mptcp_close_ssk (net/mptcp/protocol.c:2370) 
[ 2447.436920][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2447.436924][ 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) 
[ 2447.436927][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2447.436931][ C3] ? __pfx___mptcp_close_ssk (net/mptcp/protocol.c:2345) 
[ 2447.436935][ C3] mptcp_destroy_common (net/mptcp/protocol.c:3297) 
[ 2447.436940][ C3] mptcp_destroy (./include/net/sock.h:1414 (discriminator 3) net/mptcp/protocol.c:3317 (discriminator 3)) 
[ 2447.436942][ C3] __mptcp_destroy_sock (net/mptcp/protocol.c:2952) 
[ 2447.436947][ C3] mptcp_worker (net/mptcp/protocol.c:2702) 
[ 2447.436950][ C3] ? __pfx_debug_object_deactivate (lib/debugobjects.c:862) 
[ 2447.436954][ C3] ? __pfx_mptcp_worker (net/mptcp/protocol.c:2673) 
[ 2447.436956][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.436959][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.436963][ C3] process_one_work (kernel/workqueue.c:3238) 
[ 2447.436969][ C3] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 2447.436974][ C3] ? assign_work (kernel/workqueue.c:1200) 
[ 2447.436979][ C3] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 2447.436982][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2447.436988][ C3] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 2447.436991][ C3] kthread (kernel/kthread.c:464) 
[ 2447.436995][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 2447.436998][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 2447.437002][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2447.437005][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 2447.437009][ C3] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 2447.437012][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 2447.437016][ C3] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [ 2558.328564][    C1] INFO: lockdep is turned off.
| [ 2558.328770][    C1] Preemption disabled at:
| [ 2558.328772][ C1] __dev_queue_xmit (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:894 net/core/dev.c:4638) 
| [ 2558.329183][    C1] Tainted: [W]=WARN
[ 2558.329184][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2558.329186][    C1] Workqueue: events mptcp_worker
[ 2558.329193][    C1] Call Trace:
[ 2558.329195][    C1]  <IRQ>
[ 2558.329197][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 2558.329204][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 2558.329211][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 2558.329216][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 2558.329219][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 2558.329223][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329228][ 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) 
[ 2558.329234][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 2558.329237][ 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) 
[ 2558.329240][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 2558.329247][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 2558.329250][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 2558.329255][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 2558.329259][ 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) 
[ 2558.329263][ C1] ? ip_rcv_core (./include/linux/skbuff.h:3306 net/ipv4/ip_input.c:538) 
[ 2558.329268][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 2558.329271][ C1] ? __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 2558.329274][ C1] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 2558.329276][ C1] ? handle_softirqs (kernel/softirq.c:579) 
[ 2558.329281][ C1] ? do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 2558.329283][ C1] ? __local_bh_enable_ip (kernel/softirq.c:407) 
[ 2558.329286][ C1] ? __dev_queue_xmit (net/core/dev.c:4741) 
[ 2558.329289][ C1] ? ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 2558.329293][ C1] ? ip_output (./include/linux/netfilter.h:306 net/ipv4/ip_output.c:433) 
[ 2558.329295][ C1] ? __ip_queue_xmit (./include/net/dst.h:459 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 2558.329298][ C1] ? __tcp_transmit_skb (net/ipv4/tcp_output.c:1479 (discriminator 4)) 
[ 2558.329302][ C1] ? tcp_write_xmit (net/ipv4/tcp_output.c:2838) 
[ 2558.329304][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 2558.329308][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329312][ C1] __put_net (net/core/net_namespace.c:732) 
[ 2558.329316][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 2558.329320][ C1] ip_rcv_core (./include/linux/skbuff.h:3306 net/ipv4/ip_input.c:538) 
[ 2558.329325][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 2558.329328][ C1] ip_rcv (net/ipv4/ip_input.c:563) 
[ 2558.329332][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 2558.329338][ C1] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1300) 
[ 2558.329342][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 2558.329345][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 2558.329348][ C1] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 2558.329352][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 2558.329356][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329359][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 2558.329362][ C1] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 2558.329366][ C1] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 2558.329371][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329375][ C1] __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 2558.329377][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329381][ C1] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 2558.329387][ C1] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 2558.329390][ C1] ? rcu_start_this_gp (kernel/rcu/tree.c:1047) 
[ 2558.329394][ C1] ? trace_rcu_quiescent_state_report (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745 ./include/trace/events/rcu.h:368) 
[ 2558.329398][ C1] ? rcu_report_qs_rnp (kernel/rcu/tree.c:2326 (discriminator 9)) 
[ 2558.329402][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329404][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2558.329412][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 2558.329416][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:908 net/core/dev.c:4740) 
[ 2558.329420][ C1] do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 2558.329423][    C1]  </IRQ>
[ 2558.329424][    C1]  <TASK>
[ 2558.329426][ C1] __local_bh_enable_ip (kernel/softirq.c:407) 
[ 2558.329429][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:908 net/core/dev.c:4740) 
[ 2558.329432][ C1] __dev_queue_xmit (net/core/dev.c:4741) 
[ 2558.329435][ C1] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 2558.329438][ C1] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 2558.329443][ C1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 2558.329448][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329452][ C1] ? __pfx___dev_queue_xmit (net/core/dev.c:4621) 
[ 2558.329456][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329459][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2558.329463][ C1] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:836 ./include/net/neighbour.h:493) 
[ 2558.329466][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 2558.329471][ C1] ? ip_finish_output2 (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 net/ipv4/ip_output.c:228) 
[ 2558.329475][ C1] ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 2558.329478][ 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) 
[ 2558.329480][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329483][ C1] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 2558.329488][ C1] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) 
[ 2558.329491][ C1] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 2558.329495][ 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) 
[ 2558.329498][ C1] ip_output (./include/linux/netfilter.h:306 net/ipv4/ip_output.c:433) 
[ 2558.329501][ C1] ? __ip_local_out (./include/linux/skbuff.h:1156 net/ipv4/ip_output.c:119) 
[ 2558.329504][ C1] ? __pfx_ip_output (net/ipv4/ip_output.c:427) 
[ 2558.329507][ C1] ? ipv4_dst_check (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/ipv4/route.c:401 net/ipv4/route.c:1213) 
[ 2558.329510][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329513][ C1] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 2558.329519][ C1] __ip_queue_xmit (./include/net/dst.h:459 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 2558.329522][ 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)) 
[ 2558.329527][ C1] __tcp_transmit_skb (net/ipv4/tcp_output.c:1479 (discriminator 4)) 
[ 2558.329533][ C1] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1300) 
[ 2558.329536][ C1] ? __pfx_mptcp_established_options (net/mptcp/options.c:832) 
[ 2558.329543][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329546][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2558.329551][ C1] tcp_write_xmit (net/ipv4/tcp_output.c:2838) 
[ 2558.329556][ C1] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1873) 
[ 2558.329560][ C1] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2747) 
[ 2558.329563][ C1] ? inet_sk_state_store (net/ipv4/af_inet.c:1353) 
[ 2558.329568][ C1] ? tcp_set_state (net/ipv4/tcp.c:2926 (discriminator 53)) 
[ 2558.329571][ C1] ? __pfx_tcp_set_state (net/ipv4/tcp.c:2926) 
[ 2558.329576][ C1] __tcp_push_pending_frames (net/ipv4/tcp_output.c:3021) 
[ 2558.329580][ C1] __tcp_close (net/ipv4/tcp.c:3186) 
[ 2558.329583][ C1] ? __mptcp_close_ssk (net/mptcp/protocol.c:2370) 
[ 2558.329587][ C1] ? __mptcp_close_ssk (net/mptcp/protocol.c:2370) 
[ 2558.329589][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2558.329593][ 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) 
[ 2558.329597][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2558.329600][ C1] ? __pfx___mptcp_close_ssk (net/mptcp/protocol.c:2345) 
[ 2558.329605][ C1] mptcp_destroy_common (net/mptcp/protocol.c:3297) 
[ 2558.329610][ C1] mptcp_destroy (./include/net/sock.h:1414 (discriminator 3) net/mptcp/protocol.c:3317 (discriminator 3)) 
[ 2558.329612][ C1] __mptcp_destroy_sock (net/mptcp/protocol.c:2952) 
[ 2558.329617][ C1] mptcp_worker (net/mptcp/protocol.c:2702) 
[ 2558.329620][ C1] ? __pfx_debug_object_deactivate (lib/debugobjects.c:862) 
[ 2558.329623][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329627][ C1] ? __pfx_mptcp_worker (net/mptcp/protocol.c:2673) 
[ 2558.329629][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329633][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329637][ C1] process_one_work (kernel/workqueue.c:3238) 
[ 2558.329642][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2558.329646][ C1] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 2558.329651][ C1] ? assign_work (kernel/workqueue.c:1200) 
[ 2558.329656][ C1] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 2558.329659][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2558.329664][ C1] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 2558.329667][ C1] kthread (kernel/kthread.c:464) 
[ 2558.329671][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 2558.329675][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 2558.329678][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2558.329681][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 2558.329685][ C1] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 2558.329688][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 2558.329692][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [ 2575.832417][    C2] INFO: lockdep is turned off.
| [ 2575.832645][    C2] Preemption disabled at:
| [ 2575.832647][ C2] 0x0 
| [ 2575.833067][    C2] Tainted: [W]=WARN
[ 2575.833069][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2575.833071][    C2] Call Trace:
[ 2575.833073][    C2]  <IRQ>
[ 2575.833075][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 2575.833084][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 2575.833091][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 2575.833096][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 2575.833099][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 2575.833103][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2575.833109][ 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) 
[ 2575.833114][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 2575.833117][ 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) 
[ 2575.833120][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 2575.833126][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 2575.833129][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 2575.833134][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 2575.833138][ 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) 
[ 2575.833142][ C2] ? tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2372) 
[ 2575.833147][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 2575.833150][ 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) 
[ 2575.833155][ C2] ? __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 2575.833160][ C2] ? process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 2575.833163][ C2] ? __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 2575.833166][ C2] ? net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 2575.833168][ C2] ? handle_softirqs (kernel/softirq.c:579) 
[ 2575.833173][ C2] ? do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 2575.833175][ C2] ? __local_bh_enable_ip (kernel/softirq.c:407) 
[ 2575.833178][ C2] ? mptcp_send_ack (./include/net/sock.h:1730 ./include/net/sock.h:1720 net/mptcp/protocol.c:458 net/mptcp/protocol.c:466) 
[ 2575.833183][ C2] ? __mptcp_retrans (net/mptcp/protocol.c:2567) 
[ 2575.833185][ C2] ? mptcp_release_cb (net/mptcp/protocol.c:3375) 
[ 2575.833188][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 2575.833192][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2575.833196][ C2] __put_net (net/core/net_namespace.c:732) 
[ 2575.833201][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 2575.833205][ C2] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2372) 
[ 2575.833212][ C2] ? raw_v4_input (net/ipv4/raw.c:165) 
[ 2575.833216][ C2] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2188) 
[ 2575.833221][ C2] ? __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) 
[ 2575.833227][ C2] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) 
[ 2575.833232][ C2] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 2575.833237][ C2] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 2575.833241][ C2] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 2575.833244][ C2] ? tcp_v4_early_demux (./include/linux/skbuff.h:1188 net/ipv4/tcp_ipv4.c:2008) 
[ 2575.833248][ C2] ? rcu_read_lock_held (kernel/rcu/update.c:105 kernel/rcu/update.c:349) 
[ 2575.833253][ C2] ? ip_rcv_finish_core (./include/linux/skbuff.h:1156 ./include/net/route.h:88 net/ipv4/ip_input.c:390) 
[ 2575.833258][ 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) 
[ 2575.833262][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 2575.833266][ C2] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 2575.833271][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 2575.833273][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 2575.833276][ C2] ? kasan_save_free_info (mm/kasan/generic.c:579) 
[ 2575.833279][ C2] ? __kasan_slab_free (mm/kasan/common.c:271) 
[ 2575.833282][ C2] ? kmem_cache_free (mm/slub.c:4642 mm/slub.c:4744) 
[ 2575.833286][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 2575.833289][ C2] ? rcu_core (kernel/rcu/tree.c:2834) 
[ 2575.833293][ C2] ? handle_softirqs (kernel/softirq.c:579) 
[ 2575.833295][ C2] ? do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 2575.833298][ C2] ? __local_bh_enable_ip (kernel/softirq.c:407) 
[ 2575.833301][ C2] ? __dev_queue_xmit (net/core/dev.c:4741) 
[ 2575.833305][ C2] ? ip_finish_output2 (./include/net/neighbour.h:537 net/ipv4/ip_output.c:235) 
[ 2575.833308][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 2575.833311][ C2] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 2575.833315][ C2] __netif_receive_skb_one_core (net/core/dev.c:5977 (discriminator 4)) 
[ 2575.833319][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5970) 
[ 2575.833323][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2575.833326][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 2575.833329][ C2] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6440) 
[ 2575.833334][ C2] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6443) 
[ 2575.833338][ C2] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) 
[ 2575.833343][ C2] __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 2575.833345][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2575.833349][ C2] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 2575.833354][ C2] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 2575.833359][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 2575.833362][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2575.833365][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2575.833372][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 2575.833376][ C2] ? mptcp_send_ack (./include/net/sock.h:1730 ./include/net/sock.h:1720 net/mptcp/protocol.c:458 net/mptcp/protocol.c:466) 
[ 2575.833380][ C2] do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[ 2575.833383][    C2]  </IRQ>
[ 2575.833384][    C2]  <TASK>
[ 2575.833385][ C2] __local_bh_enable_ip (kernel/softirq.c:407) 
[ 2575.833389][ C2] mptcp_send_ack (./include/net/sock.h:1730 ./include/net/sock.h:1720 net/mptcp/protocol.c:458 net/mptcp/protocol.c:466) 
[ 2575.833393][ C2] ? __pfx_mptcp_send_ack (net/mptcp/protocol.c:462) 
[ 2575.833398][ C2] __mptcp_retrans (net/mptcp/protocol.c:2567) 
[ 2575.833401][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2575.833404][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 2575.833408][ C2] ? __pfx___mptcp_retrans (net/mptcp/protocol.c:2545) 
[ 2575.833410][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 2575.833414][ C2] ? mptcp_release_cb (net/mptcp/protocol.c:3370) 
[ 2575.833417][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2575.833420][ C2] ? mptcp_release_cb (net/mptcp/protocol.c:3370) 
[ 2575.833423][ C2] mptcp_release_cb (net/mptcp/protocol.c:3375) 
[ 2575.833426][ C2] ? 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) 
[ 2575.833430][ C2] ? 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) 
[ 2575.833436][ 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) 
[ 2575.833439][ C2] ? __pfx_mptcp_release_cb (net/mptcp/protocol.c:3347) 
[ 2575.833441][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 2575.833445][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 2575.833447][ C2] ? release_sock (net/core/sock.c:3766) 
[ 2575.833452][ C2] release_sock (net/core/sock.c:3770 (discriminator 2)) 
[ 2575.833456][ C2] mptcp_close (net/mptcp/protocol.c:3068) 
[ 2575.833459][ C2] inet_release (net/ipv4/af_inet.c:436) 
[ 2575.833463][ C2] __sock_release (net/socket.c:647) 
[ 2575.833469][ C2] sock_close (net/socket.c:1393) 
[ 2575.833472][ C2] __fput (fs/file_table.c:465) 
[ 2575.833478][ C2] task_work_run (kernel/task_work.c:229 (discriminator 1)) 
[ 2575.833483][ C2] ? __pfx_task_work_run (kernel/task_work.c:195) 
[ 2575.833486][ C2] ? kmem_cache_free (mm/slub.c:4642 mm/slub.c:4744) 
[ 2575.833489][ C2] ? refcount_dec_and_lock (lib/refcount.c:146) 
[ 2575.833492][ C2] ? do_exit (./include/linux/task_work.h:40 kernel/exit.c:959) 
[ 2575.833497][ C2] do_exit (kernel/exit.c:960) 
[ 2575.833502][ C2] do_group_exit (kernel/exit.c:1089) 
[ 2575.833506][ C2] get_signal (kernel/signal.c:701 kernel/signal.c:2912) 
[ 2575.833511][ C2] ? hrtimer_nanosleep (kernel/time/hrtimer.c:2140) 
[ 2575.833517][ C2] ? __pfx_hrtimer_nanosleep (kernel/time/hrtimer.c:2140) 
[ 2575.833520][ C2] ? __pfx_get_signal (kernel/signal.c:2800) 
[ 2575.833524][ C2] ? __pfx_hrtimer_wakeup (kernel/time/hrtimer.c:1990) 
[ 2575.833529][ C2] arch_do_signal_or_restart (arch/x86/kernel/signal.c:337) 
[ 2575.833534][ C2] ? __pfx_arch_do_signal_or_restart (arch/x86/kernel/signal.c:334) 
[ 2575.833538][ C2] ? common_nsleep (kernel/time/posix-timers.c:1356) 
[ 2575.833542][ C2] ? __x64_sys_clock_nanosleep (kernel/time/posix-timers.c:1399 kernel/time/posix-timers.c:1376 kernel/time/posix-timers.c:1376) 
[ 2575.833547][ C2] ? ksys_write (fs/read_write.c:738) 
[ 2575.833552][ C2] ? __pfx___x64_sys_clock_nanosleep (kernel/time/posix-timers.c:1376) 
[ 2575.833556][ C2] ? 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) 
[ 2575.833562][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 2575.833565][ C2] exit_to_user_mode_loop (kernel/entry/common.c:113) 
[ 2575.833570][ C2] 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) 
[ 2575.833575][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 2575.833578][    C2] RIP: 0033:0x7fa472bf997a
[ 2575.833581][ C2] Code: Unable to access opcode bytes at 0x7fa472bf9950.

Code starting with the faulting instruction
===========================================
[ 2575.833583][    C2] RSP: 002b:00007ffd7bd3d0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6
[ 2575.833587][    C2] RAX: fffffffffffffdfc RBX: 0000000000000005 RCX: 00007fa472bf997a
[ 2575.833590][    C2] RDX: 00007ffd7bd3d0e0 RSI: 0000000000000000 RDI: 0000000000000000
[ 2575.833592][    C2] RBP: 0000000000000014 R08: 00007fa472cdf234 R09: 00007fa472cdf260
[ 2575.833594][    C2] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd7bd3f2d0


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