======================================
| xx__-> [   14.781324][  T263] ip (263) used greatest stack depth: 24160 bytes left
| [   21.947064][    C3] ------------[ cut here ]------------
| [   21.947544][    C3] WARNING: CPU: 3 PID: 328 at ./include/net/sch_generic.h:843 tc_run (./include/net/sch_generic.h:843 ./include/net/sch_generic.h:889 ./include/net/sch_generic.h:1366 net/core/dev.c:4370)
| [   21.948115][    C3] Modules linked in: cls_bpf sch_ingress
[   21.949179][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.949601][    C3] RIP: 0010:tc_run (./include/net/sch_generic.h:843 ./include/net/sch_generic.h:889 ./include/net/sch_generic.h:1366 net/core/dev.c:4370)
[   21.949939][    C3] Code: 89 f8 49 c1 e8 03 45 0f b6 04 30 48 89 fe 83 e6 07 83 c6 01 44 38 c6 7c 09 45 84 c0 0f 85 83 02 00 00 66 83 7a 06 00 74 04 90 <0f> 0b 90 48 ba 00 00 00 00 00 fc ff df 48 8d 7b 28 48 89 fe 48 c1
All code
========
   0:	89 f8                	mov    %edi,%eax
   2:	49 c1 e8 03          	shr    $0x3,%r8
   6:	45 0f b6 04 30       	movzbl (%r8,%rsi,1),%r8d
   b:	48 89 fe             	mov    %rdi,%rsi
   e:	83 e6 07             	and    $0x7,%esi
  11:	83 c6 01             	add    $0x1,%esi
  14:	44 38 c6             	cmp    %r8b,%sil
  17:	7c 09                	jl     0x22
  19:	45 84 c0             	test   %r8b,%r8b
  1c:	0f 85 83 02 00 00    	jne    0x2a5
  22:	66 83 7a 06 00       	cmpw   $0x0,0x6(%rdx)
  27:	74 04                	je     0x2d
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  34:	fc ff df 
  37:	48 8d 7b 28          	lea    0x28(%rbx),%rdi
  3b:	48 89 fe             	mov    %rdi,%rsi
  3e:	48                   	rex.W
  3f:	c1                   	.byte 0xc1

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
   a:	fc ff df 
   d:	48 8d 7b 28          	lea    0x28(%rbx),%rdi
  11:	48 89 fe             	mov    %rdi,%rsi
  14:	48                   	rex.W
  15:	c1                   	.byte 0xc1
[   21.951119][    C3] RSP: 0018:ffffc900002705d0 EFLAGS: 00010202
[   21.951546][    C3] RAX: ffffe8ffffd89030 RBX: ffff888002502c80 RCX: 0000000000008880
[   21.952031][    C3] RDX: ffff88800e1aa180 RSI: 0000000000000007 RDI: ffff88800e1aa186
[   21.952524][    C3] RBP: ffffc90000270678 R08: 0000000000000000 R09: ffffed1001a80d39
[   21.953010][    C3] R10: ffff88800d4069cf R11: ffffffff8b388540 R12: ffffc90000270780
[   21.953513][    C3] R13: 1ffff9200004e0be R14: ffff888002502cc8 R15: ffff88800d4c36d0
[   21.953999][    C3] FS:  00007fb801c6fb80(0000) GS:ffff8880e0a88000(0000) knlGS:0000000000000000
[   21.954728][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.955138][    C3] CR2: 0000000000a44000 CR3: 000000000a546004 CR4: 0000000000772ef0
[   21.955655][    C3] PKRU: 55555554
[   21.955904][    C3] Call Trace:
[   21.956150][    C3]  <IRQ>
[   21.956329][    C3]  ? veth_poll (drivers/net/veth.c:981)
[   21.956662][    C3]  ? __napi_poll.constprop.0 (net/core/dev.c:7668)
[   21.956994][    C3]  ? napi_disable (net/core/dev.c:4349)
[   21.957322][    C3]  ? neigh_resolve_output (net/core/neighbour.c:1578)
[   21.957652][    C3]  ? ip6_finish_output (net/ipv6/ip6_output.c:209 net/ipv6/ip6_output.c:220)
[   21.957977][    C3]  ? ip6_output (./include/linux/netfilter.h:307 net/ipv6/ip6_output.c:247)
[   21.958307][    C3]  __netif_receive_skb_core.constprop.0 (net/core/dev.c:4448 net/core/dev.c:5989)
[   21.958724][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.959055][    C3]  ? do_xdp_generic (net/core/dev.c:5908)
[   21.959387][    C3]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.959716][    C3]  ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:69 mm/kasan/common.c:78)
[   21.960042][    C3]  ? skb_release_data (./include/linux/atomic/atomic-arch-fallback.h:787 ./include/linux/atomic/atomic-instrumented.h:290 ./include/linux/skbuff.h:1310 net/core/skbuff.c:1073)
[   21.960376][    C3]  ? kfree_skbmem (./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/refcount.h:450 net/core/skbuff.c:1132)
[   21.960707][    C3]  ? skb_pp_cow_data (net/core/skbuff.c:975)
[   21.961044][    C3]  __netif_receive_skb_list_core (net/core/dev.c:6214)
[   21.961454][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.961796][    C3]  ? __netif_receive_skb_core.constprop.0 (net/core/dev.c:6191)
[   21.962199][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   21.962541][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831)
[   21.962861][    C3]  ? netif_receive_skb_list_internal (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:867 net/core/dev.c:6356)
[   21.963270][    C3]  netif_receive_skb_list_internal (net/core/dev.c:6282 net/core/dev.c:6371)
[   21.963679][    C3]  ? gro_receive_skb (net/core/gro.c:637)
[   21.964004][    C3]  ? process_backlog (net/core/dev.c:6343)
[   21.964330][    C3]  ? veth_xdp_rcv (./arch/x86/include/asm/bitops.h:202 ./arch/x86/include/asm/bitops.h:232 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/netdevice.h:3664 drivers/net/veth.c:962)
[   21.964668][    C3]  ? ip6_input (net/ipv6/ip6_input.c:496)
[   21.964995][    C3]  ? veth_xdp_rcv_skb (drivers/net/veth.c:902)
[   21.965328][    C3]  napi_complete_done (./include/linux/list.h:45 ./include/net/gro.h:525 ./include/net/gro.h:520 ./include/net/gro.h:532 net/core/dev.c:6740)
[   21.965660][    C3]  ? netif_receive_skb_list (net/core/dev.c:6709)
[   21.965992][    C3]  veth_poll (drivers/net/veth.c:984 (discriminator 1))
[   21.966237][    C3]  ? veth_xdp_rcv (drivers/net/veth.c:969)
[   21.966581][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.966912][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   21.967236][    C3]  ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202)
[   21.967584][    C3]  ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202)
[   21.967904][    C3]  ? process_backlog (net/core/dev.c:6635)
[   21.968226][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.968567][    C3]  __napi_poll.constprop.0 (net/core/dev.c:7668)
[   21.968895][    C3]  net_rx_action (net/core/dev.c:7730 net/core/dev.c:7882)
[   21.969221][    C3]  ? run_backlog_napi (net/core/dev.c:7844)
[   21.969555][    C3]  ? clockevents_program_event (kernel/time/clockevents.c:326)
[   21.969879][    C3]  ? lock_downgrade (kernel/locking/lockdep.c:471 kernel/locking/lockdep.c:5764)
[   21.970212][    C3]  ? clockevents_program_event (kernel/time/clockevents.c:336 (discriminator 3))
[   21.970635][    C3]  handle_softirqs (kernel/softirq.c:623)
[   21.970960][    C3]  ? __neigh_event_send (./include/linux/bottom_half.h:33 net/core/neighbour.c:1273)
[   21.971298][    C3]  do_softirq (kernel/softirq.c:523 kernel/softirq.c:510)
[   21.971546][    C3]  </IRQ>
[   21.971711][    C3]  <TASK>
[   21.971873][    C3]  __local_bh_enable_ip (kernel/softirq.c:450)
[   21.972198][    C3]  __neigh_event_send (net/core/neighbour.c:1274)
[   21.972531][    C3]  ? __local_bh_enable_ip (kernel/softirq.c:429)
[   21.972851][    C3]  ? ___neigh_create (net/core/neighbour.c:727)
[   21.973170][    C3]  ? ___neigh_create (net/core/neighbour.c:727)
[   21.973508][    C3]  neigh_resolve_output (net/core/neighbour.c:1578)
[   21.973835][    C3]  ? ip6_finish_output2 (net/ipv6/ip6_output.c:128)
[   21.974155][    C3]  ? ip6_mtu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/net/ip6_route.h:317 net/ipv6/route.c:3266)
[   21.974410][    C3]  ip6_finish_output (net/ipv6/ip6_output.c:209 net/ipv6/ip6_output.c:220)
[   21.974743][    C3]  ip6_output (./include/linux/netfilter.h:307 net/ipv6/ip6_output.c:247)
[   21.974983][    C3]  ? ip6_finish_output (net/ipv6/ip6_output.c:228)
[   21.975310][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.975640][    C3]  ? ip6_mtu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/net/ip6_route.h:317 net/ipv6/route.c:3266)
[   21.975880][    C3]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.976207][    C3]  ip6_xmit (./include/net/dst.h:464 ./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv6/ip6_output.c:371)
[   21.976464][    C3]  ? ip6_append_data (net/ipv6/ip6_output.c:271)
[   21.976794][    C3]  ? ip6_dst_check.part.0 (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/ipv6/route.c:2813)
[   21.977116][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.977459][    C3]  inet6_csk_xmit (net/ipv6/inet6_connection_sock.c:120 (discriminator 11))
[   21.977788][    C3]  ? inet6_csk_route_socket (net/ipv6/inet6_connection_sock.c:100)
[   21.978119][    C3]  ? __copy_skb_header (./include/net/dst.h:293 net/core/skbuff.c:1514)
[   21.978453][    C3]  __tcp_transmit_skb (net/ipv4/tcp_output.c:1628)
[   21.978795][    C3]  ? __tcp_select_window (net/ipv4/tcp_output.c:1449)
[   21.979123][    C3]  ? tcp_call_bpf (./include/net/sock.h:1685 ./include/net/sock.h:1780 ./include/net/tcp.h:2775)
[   21.979476][    C3]  tcp_connect (net/ipv4/tcp_output.c:1646 net/ipv4/tcp_output.c:4335)
[   21.979804][    C3]  tcp_v6_connect (net/ipv6/tcp_ipv6.c:336)
[   21.980131][    C3]  ? inet6_sk_rx_dst_set (net/ipv6/tcp_ipv6.c:138)
[   21.980460][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.980796][    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)
[   21.981127][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.981462][    C3]  __inet_stream_connect (net/ipv4/af_inet.c:679)
[   21.981796][    C3]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   21.982118][    C3]  ? __inet_stream_connect (net/ipv4/af_inet.c:746)
[   21.982444][    C3]  inet_stream_connect (net/ipv4/af_inet.c:751)
[   21.982776][    C3]  __sys_connect (./include/linux/file.h:62 ./include/linux/file.h:83 net/socket.c:2111)
[   21.983097][    C3]  ? __sys_connect_file (net/socket.c:2109)
[   21.983420][    C3]  ? fd_install (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 fs/file.c:676)
[   21.983750][    C3]  ? fd_install (./arch/x86/include/asm/preempt.h:104 ./include/linux/rcupdate.h:981 fs/file.c:676)
[   21.984083][    C3]  ? __sys_socket (net/socket.c:516 net/socket.c:1756)
[   21.984409][    C3]  ? update_socket_protocol+0x10/0x10
[   21.984746][    C3]  __x64_sys_connect (net/socket.c:2124)
[   21.985064][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   21.985394][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.985723][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   21.986123][    C3] RIP: 0033:0x7fb801d81d67
[   21.986465][    C3] Code: 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2a 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 18 89 54 24 0c 48 89 34 24 89
All code
========
   0:	64 89 01             	mov    %eax,%fs:(%rcx)
   3:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
   7:	c3                   	ret
   8:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   f:	00 00 00 
  12:	90                   	nop
  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 2a 00 00 00       	mov    $0x2a,%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 18          	sub    $0x18,%rsp
  37:	89 54 24 0c          	mov    %edx,0xc(%rsp)
  3b:	48 89 34 24          	mov    %rsi,(%rsp)
  3f:	89                   	.byte 0x89

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 18          	sub    $0x18,%rsp
   d:	89 54 24 0c          	mov    %edx,0xc(%rsp)
  11:	48 89 34 24          	mov    %rsi,(%rsp)
  15:	89                   	.byte 0x89
[   21.987645][    C3] RSP: 002b:00007ffccf061098 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
[   21.988133][    C3] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fb801d81d67
[   21.988636][    C3] RDX: 000000000000001c RSI: 0000000000a450e0 RDI: 0000000000000005
[   21.989121][    C3] RBP: 00007ffccf0611e0 R08: 00007ffccf060ff0 R09: 0000000000000000
[   21.989620][    C3] R10: 00007fb801c78618 R11: 0000000000000246 R12: 0000000000000005


Finger prints:
tc_run:__netif_receive_skb_list_core:netif_receive_skb_list_internal:napi_complete_done:veth_poll