======================================
| [ 1493.540898][ C2] #6: ffffffffb99467e0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5696 (discriminator 16)) 
| [ 1493.541458][ C2] #7: ffffffffb99467e0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/ipv4/ip_input.c:232) 
| [ 1493.541982][    C2]
| [ 1493.541982][    C2] stack backtrace:
[ 1493.542723][    C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1493.543372][    C2] Call Trace:
[ 1493.543548][    C2]  <TASK>
[ 1493.543737][ C2] dump_stack_lvl (lib/dump_stack.c:107) 
[ 1493.543995][ C2] validate_chain (kernel/locking/lockdep.c:3859) 
[ 1493.544261][ C2] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 1493.544531][ C2] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 1493.544796][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 1493.545044][ C2] __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 1493.545294][ C2] ? lock_downgrade (kernel/locking/lockdep.c:5656) 
[ 1493.545541][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 1493.545787][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 1493.546069][ C2] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1493.546315][    C2]  ? __pfx_lock_ac
DETECTED CRASH, lowering timeout
quire.part.0+0x10/0x10 
[ 1493.546632][ C2] ? __pfx_sk_filter_trim_cap (net/core/filter.c:130) 
[ 1493.546940][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 1493.547186][ C2] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1493.547449][ C2] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[ 1493.547716][ C2] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1493.547982][ C2] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1493.548220][ C2] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2162) 
[ 1493.548472][ C2] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) 
[ 1493.548751][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 1493.549064][ C2] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) 
[ 1493.549349][ C2] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1493.549651][ C2] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 1493.549903][ C2] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 1493.550198][ C2] ? tcp_v4_early_demux (./include/linux/skbuff.h:1163 net/ipv4/tcp_ipv4.c:1988) 
[ 1493.550469][ C2] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) 
[ 1493.550809][ C2] ip_rcv (./include/net/dst.h:460 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) 
[ 1493.551046][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 1493.551316][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 1493.551588][ C2] ? netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5696 (discriminator 16)) 
[ 1493.551904][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 1493.552141][ C2] __netif_receive_skb_one_core (net/core/dev.c:5509 (discriminator 4)) 
[ 1493.552468][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5502) 
[ 1493.552799][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 1493.553074][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 1493.553344][ C2] ? netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5696 (discriminator 16)) 
[ 1493.553648][ C2] netif_receive_skb_internal (net/core/dev.c:5709) 
[ 1493.553964][ C2] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5688) 
[ 1493.554301][ C2] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1420) 
[ 1493.554560][ C2] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1491 (discriminator 4)) 
[ 1493.554825][ C2] netif_receive_skb (net/core/dev.c:5768) 
[ 1493.555094][ C2] tcf_mirred_to_dev (net/sched/act_mirred.c:249 net/sched/act_mirred.c:324) act_mirred
[ 1493.555443][ C2] ? __pfx_tcf_skbedit_act (net/sched/act_skbedit.c:43) act_skbedit
[ 1493.555806][ C2] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred
[ 1493.556135][ C2] tcf_action_exec.part.0 (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100) 
[ 1493.556432][ C2] fl_classify (net/sched/cls_flower.c:345) cls_flower
[ 1493.556748][ C2] ? __pfx_fl_classify (net/sched/cls_flower.c:316) cls_flower
[ 1493.557083][ C2] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) 
[ 1493.557379][ C2] ? __bfs (kernel/locking/lockdep.c:1787) 
[ 1493.557591][ C2] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) 
[ 1493.557892][ C2] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[ 1493.558189][ C2] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[ 1493.558452][ C2] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 1493.558707][ C2] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) 
[ 1493.558988][ C2] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) 
[ 1493.559282][ C2] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 1493.559554][ C2] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 1493.559822][ C2] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 1493.560082][ C2] ? check_prev_add (kernel/locking/lockdep.c:3172) 
[ 1493.560360][ C2] __tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734) 
[ 1493.560605][ C2] tcf_classify (net/sched/cls_api.c:1830) 
[ 1493.560860][ C2] ? __pfx_tcf_classify (net/sched/cls_api.c:1779) 
[ 1493.561121][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4251) 
[ 1493.561419][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4251) 
[ 1493.561709][ C2] tc_run (net/core/dev.c:3912) 
[ 1493.561937][ C2] ? __pfx_tc_run (net/core/dev.c:3896) 
[ 1493.562175][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 1493.562425][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4251) 
[ 1493.562711][ C2] __dev_queue_xmit (net/core/dev.c:4036 net/core/dev.c:4268) 
[ 1493.562972][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 1493.563247][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) 
[ 1493.563590][ C2] ? __pfx___dev_queue_xmit (net/core/dev.c:4235) 
[ 1493.563890][ C2] ? __pfx_vrf_output_direct_finish (./include/linux/skbuff.h:1134) vrf
[ 1493.564254][ C2] ip_finish_output2 (./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) 
[ 1493.564538][ C2] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) 
[ 1493.564820][ C2] ? __ip_finish_output (net/ipv4/ip_output.c:256 net/ipv4/ip_output.c:308 net/ipv4/ip_output.c:295) 
[ 1493.565115][ C2] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) 
[ 1493.565357][ C2] ? __pfx_ip_output (net/ipv4/ip_output.c:427) 
[ 1493.565606][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 1493.565913][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) 
[ 1493.566252][ C2] ? ip_local_out (./include/linux/skbuff.h:1131 ./include/net/dst.h:450 net/ipv4/ip_output.c:129) 
[ 1493.566520][ C2] __ip_queue_xmit (net/ipv4/ip_output.c:535 (discriminator 4)) 
[ 1493.566774][ C2] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1491 (discriminator 4)) 
[ 1493.567032][ C2] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[ 1493.567305][ C2] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1283) 
[ 1493.567611][ C2] ? tcp_small_queue_check.isra.0 (./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:136 net/ipv4/tcp_output.c:2623) 
[ 1493.567922][ C2] tcp_write_xmit (net/ipv4/tcp_output.c:2792) 
[ 1493.568201][ C2] ? ipv4_mtu (./include/net/net_namespace.h:383 ./include/linux/netdevice.h:2655 ./include/net/ip.h:465 net/ipv4/route.c:1326) 
[ 1493.568423][ C2] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2702) 
[ 1493.568709][ C2] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1853) 
[ 1493.568984][ C2] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) 
[ 1493.569293][ C2] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6870) 
[ 1493.569571][ C2] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1493.569838][ C2] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 1493.570092][ C2] ? __lock_acquired (kernel/locking/lockdep.c:339 kernel/locking/lockdep.c:5991) 
[ 1493.570350][ C2] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6620) 
[ 1493.570650][ C2] ? __pfx___lock_acquired (kernel/locking/lockdep.c:5959) 
[ 1493.570943][ C2] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) 
[ 1493.571242][ C2] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1493.571507][ C2] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) 
[ 1493.571749][ C2] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2162) 
[ 1493.572026][ C2] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) 
[ 1493.572312][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 1493.572602][ C2] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) 
[ 1493.572914][ C2] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1493.573224][ C2] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 1493.573480][ C2] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 1493.573782][ C2] ? tcp_v4_early_demux (./include/linux/skbuff.h:1163 net/ipv4/tcp_ipv4.c:1988) 
[ 1493.574058][ C2] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) 
[ 1493.574408][ C2] ip_rcv (./include/net/dst.h:460 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) 
[ 1493.574646][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 1493.574904][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 1493.575175][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5950) 
[ 1493.575451][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 1493.575711][ C2] __netif_receive_skb_one_core (net/core/dev.c:5509 (discriminator 4)) 
[ 1493.576016][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5502) 
[ 1493.576376][ C2] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) 
[ 1493.576666][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 1493.576931][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5950) 
[ 1493.577209][ C2] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5952) 
[ 1493.577454][ C2] __napi_poll.constprop.0 (net/core/dev.c:6551) 
[ 1493.577746][ C2] net_rx_action (net/core/dev.c:6620 net/core/dev.c:6753) 
[ 1493.578008][ C2] ? __pfx_net_rx_action (net/core/dev.c:6717) 
[ 1493.578272][ C2] ? __pfx___schedule (kernel/sched/core.c:6608) 
[ 1493.578555][ C2] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 1493.578852][ C2] __do_softirq (kernel/softirq.c:553) 
[ 1493.579115][ C2] ? __pfx_run_ksoftirqd (kernel/softirq.c:914) 
[ 1493.579396][ C2] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) 
[ 1493.579626][ C2] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1493.579897][ C2] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 1493.580182][ C2] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 1493.580495][ C2] kthread (kernel/kthread.c:388) 
[ 1493.580730][ C2] ? __pfx_kthread (kernel/kthread.c:341) 
[ 1493.580991][ C2] ret_from_fork (arch/x86/kernel/process.c:147) 
[ 1493.581253][ C2] ? __pfx_kthread (kernel/kthread.c:341) 
[ 1493.581490][ C2] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) 
| [ 1493.581490][ C2] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) 
| [ 1493.581759][    C2]  </TASK>
| [ 1516.733048][ T3868] ncat (3868) used greatest stack depth: 21312 bytes left
| [ 1536.068083][    C1] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1536.068862][    C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1536.069484][    C1] Call Trace:
[ 1536.069659][    C1]  <IRQ>
[ 1536.069809][ C1] dump_stack_lvl (lib/dump_stack.c:107) 
[ 1536.070053][ C1] __report_bad_irq (kernel/irq/spurious.c:214) 
[ 1536.070302][ C1] note_interrupt (kernel/irq/spurious.c:423) 
[ 1536.070545][ C1] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 1536.070798][ C1] handle_edge_irq (kernel/irq/chip.c:833) 
[ 1536.071055][ C1] __common_interrupt (./include/linux/irqdesc.h:161 arch/x86/kernel/irq.c:238 arch/x86/kernel/irq.c:257) 
[ 1536.071314][ C1] common_interrupt (arch/x86/kernel/irq.c:247 (discriminator 14)) 
[ 1536.071561][    C1]  </IRQ>
[ 1536.071713][    C1]  <TASK>
[ 1536.071865][ C1] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:640) 
[ 1536.072127][ C1] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1536.072460][ C1] Code: 10 e8 91 91 a4 fd 48 89 ef e8 a9 19 a5 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d 25 fe b5 47 <74> 0e 5b 5d c3 cc cc cc cc e8 2f da c6 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	91                   	xchg   %eax,%ecx
   3:	91                   	xchg   %eax,%ecx
   4:	a4                   	movsb  %ds:(%rsi),%es:(%rdi)
   5:	fd                   	std
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 a9 19 a5 fd       	call   0xfffffffffda519b7
   e:	81 e3 00 02 00 00    	and    $0x200,%ebx
  14:	75 1d                	jne    0x33
  16:	9c                   	pushf
  17:	58                   	pop    %rax
  18:	f6 c4 02             	test   $0x2,%ah
  1b:	75 29                	jne    0x46
  1d:	48 85 db             	test   %rbx,%rbx
  20:	74 01                	je     0x23
  22:	fb                   	sti
  23:	65 ff 0d 25 fe b5 47 	decl   %gs:0x47b5fe25(%rip)        # 0x47b5fe4f
  2a:*	74 0e                	je     0x3a		<-- trapping instruction
  2c:	5b                   	pop    %rbx
  2d:	5d                   	pop    %rbp
  2e:	c3                   	ret
  2f:	cc                   	int3
  30:	cc                   	int3
  31:	cc                   	int3
  32:	cc                   	int3
  33:	e8 2f da c6 fd       	call   0xfffffffffdc6da67
  38:	eb dc                	jmp    0x16
  3a:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	74 0e                	je     0x10
   2:	5b                   	pop    %rbx
   3:	5d                   	pop    %rbp
   4:	c3                   	ret
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	cc                   	int3
   9:	e8 2f da c6 fd       	call   0xfffffffffdc6da3d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[ 1536.073447][    C1] RSP: 0018:ffffc900045bfa88 EFLAGS: 00000286
[ 1536.073759][    C1] RAX: 0000000000000046 RBX: 0000000000000200 RCX: 1ffffffff745cf63
[ 1536.074170][    C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffffb869b8b1
[ 1536.074577][    C1] RBP: ffffffffbc431820 R08: 0000000000000000 R09: fffffbfff745cd1a
[ 1536.074981][    C1] R10: ffffffffba2e68d7 R11: 0000000000000000 R12: 0000000000000211
[ 1536.075383][    C1] R13: ffffffffbc431930 R14: ffffffffbc431820 R15: ffff8880039a0000
[ 1536.075791][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1536.076092][ C1] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:616) 
[ 1536.076320][ C1] process_output_block (drivers/tty/n_tty.c:574) 
[ 1536.076591][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1536.076902][ C1] n_tty_write (drivers/tty/n_tty.c:2380) 
[ 1536.077134][ C1] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2350) 
[ 1536.077389][ C1] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
[ 1536.077680][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 1536.077923][ C1] ? iterate_tty_write (drivers/tty/tty_io.c:954 drivers/tty/tty_io.c:973) 
[ 1536.078182][ C1] iterate_tty_write (drivers/tty/tty_io.c:1021) 
[ 1536.078439][ C1] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1096) 
[ 1536.078733][ C1] vfs_write (./include/linux/fs.h:2085 fs/read_write.c:497 fs/read_write.c:590) 
[ 1536.078958][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 1536.079200][ C1] ? __might_fault (mm/memory.c:6060 mm/memory.c:6053) 
[ 1536.079445][ C1] ? __pfx_vfs_write (fs/read_write.c:571) 
[ 1536.079689][ C1] ? __might_fault (mm/memory.c:6060 mm/memory.c:6053) 
[ 1536.079932][ C1] ? lock_release (./include/trace/events/lock.h:69 kernel/locking/lockdep.c:5765) 
[ 1536.080176][ C1] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 1536.080418][ C1] ksys_write (fs/read_write.c:643) 
[ 1536.080637][ C1] ? __pfx_ksys_write (fs/read_write.c:633) 
[ 1536.080889][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 1536.081204][ C1] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 1536.081438][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[ 1536.081742][    C1] RIP: 0033:0x7fa7e3b1a957
[ 1536.081972][ C1] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[ 1536.082957][    C1] RSP: 002b:00007fff300098c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1536.083390][    C1] RAX: ffffffffffffffda RBX: 000055bf10a720d0 RCX: 00007fa7e3b1a957
[ 1536.083793][    C1] RDX: 0000000000000001 RSI: 000055bf10a720d0 RDI: 0000000000000001
[ 1536.084204][    C1] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1536.084607][    C1] R10: 0000000000000001 R11: 0000000000000246 R12: 000055bf10a5e570


Finger prints:
dump_stack_lvl:validate_chain:__lock_acquire:_raw_spin_lock_nested
ret_from_fork_asm:dump_stack_lvl:__report_bad_irq:note_interrupt