======================================
| [  262.195219][    C0]  #5: ffffffff8b7a1cc0 (rcu_read_lock){....}-{1:3}, at: ip_output (./include/linux/rcupdate.h:300 (discriminator 2) ./include/linux/rcupdate.h:840 (discriminator 2) net/ipv4/ip_output.c:432 (discriminator 2))
| [  262.195391][    C0]  #6: ffffffff8b7a1cc0 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2 (./include/linux/rcupdate.h:300 (discriminator 2) ./include/linux/rcupdate.h:840 (discriminator 2) net/ipv4/ip_output.c:229 (discriminator 2))
| [  262.195566][    C0]
| [  262.195566][    C0] stack backtrace:
[  262.195695][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  262.195697][    C0] Call Trace:
[  262.195698][    C0]  <IRQ>
[  262.195700][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  262.195703][    C0]  print_circular_bug.cold (kernel/locking/lockdep.c:2043)
[  262.195706][    C0]  check_noncircular (kernel/locking/lockdep.c:2175)
[  262.195709][    C0]  check_prev_add (kernel/locking/lockdep.c:3165)
[  262.195710][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  262.195712][    C0]  validate_chain (kernel/locking/lockdep.c:3284 kernel/locking/lockdep.c:3908)
[  262.195714][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  262.195716][    C0]  __lock_acquire (kernel/locking/lockdep.c:5237)
[  262.195719][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  262.195721][    C0]  ? ___neigh_create (./include/linux/spinlock.h:348 net/core/neighbour.c:670)
[  262.195722][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  262.195724][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  262.195726][    C0]  _raw_spin_lock_bh (./include/linux/spinlock_api_smp.h:150 (discriminator 1) kernel/locking/spinlock.c:182 (discriminator 1))
[  262.195728][    C0]  ? ___neigh_create (./include/linux/spinlock.h:348 net/core/neighbour.c:670)
[  262.195729][    C0]  ___neigh_create (./include/linux/spinlock.h:348 net/core/neighbour.c:670)
[  262.195730][    C0]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:413)
[  262.195732][    C0]  ip_finish_output2 (./include/net/route.h:411 ./include/net/route.h:425 net/ipv4/ip_output.c:230)
[  262.195734][    C0]  ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:873 ./include/net/ip.h:504)
[  262.195736][    C0]  ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41))
[  262.195737][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  262.195739][    C0]  ip_output (./include/linux/netfilter.h:314 net/ipv4/ip_output.c:437)
[  262.195741][    C0]  ? ip_finish_output (./include/linux/cgroup.h:868)
[  262.195743][    C0]  ? __ip_make_skb (net/ipv4/ip_output.c:1386 net/ipv4/ip_output.c:1497)
[  262.195745][    C0]  ip_push_pending_frames (./include/net/dst.h:470 (discriminator 4) net/ipv4/ip_output.c:131 (discriminator 4) net/ipv4/ip_output.c:1506 (discriminator 4) net/ipv4/ip_output.c:1526 (discriminator 4))
[  262.195747][    C0]  __icmp_send (net/ipv4/icmp.c:1015)
[  262.195750][    C0]  ? icmpv4_global_allow (net/ipv4/icmp.c:303 (discriminator 42))
[  262.195751][    C0]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  262.195753][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  262.195755][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  262.195756][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  262.195758][    C0]  ? unwind_next_frame (./include/linux/rcupdate.h:873 ./include/linux/rcupdate.h:1183 arch/x86/kernel/unwind_orc.c:495)
[  262.195761][    C0]  ? stack_access_ok (./arch/x86/include/asm/stacktrace.h:55)
[  262.195763][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[  262.195765][    C0]  ipv4_send_dest_unreach (net/ipv4/route.c:1282)
[  262.195767][    C0]  ? ip_do_redirect (net/ipv4/route.c:864)
[  262.195769][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  262.195770][    C0]  ipv4_link_failure (net/ipv4/route.c:1289)
[  262.195772][    C0]  arp_error_report (./include/net/dst.h:438 net/ipv4/arp.c:299)
[  262.195774][    C0]  neigh_invalidate (net/core/neighbour.c:1057)
[  262.195776][    C0]  ? neigh_periodic_work (net/core/neighbour.c:973 (discriminator 3))
[  262.195777][    C0]  neigh_timer_handler (net/core/neighbour.c:1149)
[  262.195779][    C0]  ? neigh_periodic_work (net/core/neighbour.c:973 (discriminator 3))
[  262.195780][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  262.195781][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[  262.195783][    C0]  ? detach_if_pending (./include/linux/list.h:1143)
[  262.195785][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  262.195786][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  262.195788][    C0]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  262.195790][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[  262.195792][    C0]  ? neigh_periodic_work (net/core/neighbour.c:973 (discriminator 3))
[  262.195794][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[  262.195795][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  262.195798][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  262.195801][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[  262.195803][    C0]  ? clockevents_program_event (kernel/time/clockevents.c:372)
[  262.195806][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[  262.195807][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  262.195809][    C0]  handle_softirqs (kernel/softirq.c:622)
[  262.195811][    C0]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  262.195813][    C0]  __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735)
[  262.195815][    C0]  irq_exit_rcu (kernel/softirq.c:752)
[  262.195816][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[  262.195818][    C0]  </IRQ>
[  262.195819][    C0]  <TASK>
[  262.195819][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  262.195821][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[  262.195822][    C0] RIP: 0010:lock_acquire.part.0 (./arch/x86/include/asm/irqflags.h:158 (discriminator 1) kernel/locking/lockdep.c:5871 (discriminator 1))
[  262.195825][    C0] Code: ff 65 0f c1 05 d7 c4 3d 04 83 f8 01 4c 8b 14 24 0f 85 30 01 00 00 9c 58 f6 c4 02 0f 85 4d 01 00 00 4d 85 d2 0f 85 16 01 00 00 <48> 8b 44 24 30 65 48 2b 05 a9 7f 3d 04 0f 85 43 01 00 00 48 83 c4
All code
========
   0:	ff 65 0f             	jmp    *0xf(%rbp)
   3:	c1 05 d7 c4 3d 04 83 	roll   $0x83,0x43dc4d7(%rip)        # 0x43dc4e1
   a:	f8                   	clc
   b:	01 4c 8b 14          	add    %ecx,0x14(%rbx,%rcx,4)
   f:	24 0f                	and    $0xf,%al
  11:	85 30                	test   %esi,(%rax)
  13:	01 00                	add    %eax,(%rax)
  15:	00 9c 58 f6 c4 02 0f 	add    %bl,0xf02c4f6(%rax,%rbx,2)
  1c:	85 4d 01             	test   %ecx,0x1(%rbp)
  1f:	00 00                	add    %al,(%rax)
  21:	4d 85 d2             	test   %r10,%r10
  24:	0f 85 16 01 00 00    	jne    0x140
  2a:*	48 8b 44 24 30       	mov    0x30(%rsp),%rax		<-- trapping instruction
  2f:	65 48 2b 05 a9 7f 3d 	sub    %gs:0x43d7fa9(%rip),%rax        # 0x43d7fe0
  36:	04 
  37:	0f 85 43 01 00 00    	jne    0x180
  3d:	48                   	rex.W
  3e:	83                   	.byte 0x83
  3f:	c4                   	.byte 0xc4

Code starting with the faulting instruction
===========================================
   0:	48 8b 44 24 30       	mov    0x30(%rsp),%rax
   5:	65 48 2b 05 a9 7f 3d 	sub    %gs:0x43d7fa9(%rip),%rax        # 0x43d7fb6
   c:	04 
   d:	0f 85 43 01 00 00    	jne    0x156
  13:	48                   	rex.W
  14:	83                   	.byte 0x83
  15:	c4                   	.byte 0xc4
[  262.195826][    C0] RSP: 0018:ffa000000154f860 EFLAGS: 00000206
[  262.195828][    C0] RAX: 0000000000000046 RBX: 0000000000000000 RCX: ed72e93d1b33bbef
[  262.195830][    C0] RDX: 0000000000000001 RSI: ffffffff8b21f5fd RDI: ffffffff8ac7a8e0
[  262.195830][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ff1100001e638b68
[  262.195831][    C0] R10: 0000000000000200 R11: 0000000000000001 R12: ffffffff8b7a1cc0
[  262.195832][    C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[  262.195834][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  262.195835][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  262.195838][    C0]  __is_insn_slot_addr (./include/linux/rcupdate.h:300 (discriminator 2) ./include/linux/rcupdate.h:840 (discriminator 2) kernel/kprobes.c:305 (discriminator 2))
[  262.195839][    C0]  ? __is_insn_slot_addr (./include/linux/rcupdate.h:300 (discriminator 2) ./include/linux/rcupdate.h:840 (discriminator 2) kernel/kprobes.c:305 (discriminator 2))
[  262.195841][    C0]  kernel_text_address (./include/linux/kprobes.h:359 kernel/extable.c:123 kernel/extable.c:94)
[  262.195842][    C0]  __kernel_text_address (kernel/extable.c:79)
[  262.195844][    C0]  ? write_profile (profile.c:?)
[  262.195845][    C0]  unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  262.195847][    C0]  arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[  262.195849][    C0]  stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  262.195851][    C0]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  262.195853][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  262.195854][    C0]  set_track_prepare (mm/slub.c:1051)
[  262.195855][    C0]  ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:44 mm/slub.c:4597 mm/slub.c:4917 mm/slub.c:4931)
[  262.195856][    C0]  ? do_getname_kernel.isra.0 (fs/namei.c:147 (discriminator 11) fs/namei.c:266 (discriminator 11))
[  262.195858][    C0]  ? open_exec (./include/linux/fs.h:2565 fs/exec.c:820)
[  262.195859][    C0]  ? load_elf_binary (fs/binfmt_elf.c:907)
[  262.195860][    C0]  ? exec_binprm (fs/exec.c:1694 fs/exec.c:1726)
[  262.195861][    C0]  ? bprm_execve (fs/exec.c:1778 fs/exec.c:1754)
[  262.195863][    C0]  ? do_execveat_common.isra.0 (fs/exec.c:1876)
[  262.195864][    C0]  ? __x64_sys_execve (fs/exec.c:1949 (discriminator 2) fs/exec.c:1943 (discriminator 2) fs/exec.c:1943 (discriminator 2))
[  262.195865][    C0]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  262.195866][    C0]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  262.195868][    C0]  __alloc_object (mm/kmemleak.c:712)
[  262.195869][    C0]  __create_object (mm/kmemleak.c:790)
[  262.195871][    C0]  ? kasan_save_track (mm/kasan/common.c:78)
[  262.195873][    C0]  kmem_cache_alloc_noprof (./include/linux/kmemleak.h:44 mm/slub.c:4597 mm/slub.c:4917 mm/slub.c:4931)
[  262.195874][    C0]  ? do_getname_kernel.isra.0 (fs/namei.c:147 (discriminator 11) fs/namei.c:266 (discriminator 11))
[  262.195876][    C0]  do_getname_kernel.isra.0 (fs/namei.c:147 (discriminator 11) fs/namei.c:266 (discriminator 11))
[  262.195878][    C0]  open_exec (./include/linux/fs.h:2565 fs/exec.c:820)
[  262.195880][    C0]  load_elf_binary (fs/binfmt_elf.c:907)
[  262.195882][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  262.195884][    C0]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  262.195885][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  262.195887][    C0]  ? load_elf_interp.isra.0 (fs/binfmt_elf.c:693 (discriminator 4))
[  262.195888][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  262.195890][    C0]  ? exec_binprm (fs/exec.c:1692 fs/exec.c:1726)
[  262.195892][    C0]  exec_binprm (fs/exec.c:1694 fs/exec.c:1726)
[  262.195894][    C0]  ? check_unsafe_exec (fs/exec.c:1552)
[  262.195896][    C0]  bprm_execve (fs/exec.c:1778 fs/exec.c:1754)
[  262.195897][    C0]  do_execveat_common.isra.0 (fs/exec.c:1876)
[  262.195900][    C0]  __x64_sys_execve (fs/exec.c:1949 (discriminator 2) fs/exec.c:1943 (discriminator 2) fs/exec.c:1943 (discriminator 2))
[  262.195901][    C0]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  262.195902][    C0]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  262.195904][    C0]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  262.195906][    C0]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  262.195907][    C0] RIP: 0033:0x7f8a1caa7f4b
[  262.195910][    C0] Code: 0f 1e fa 48 8b 05 75 e0 12 00 48 8b 10 e9 0d 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa b8 3b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 7d de 12 00 f7 d8 64 89 01 48
All code
========
   0:	0f 1e fa             	nop    %edx
   3:	48 8b 05 75 e0 12 00 	mov    0x12e075(%rip),%rax        # 0x12e07f
   a:	48 8b 10             	mov    (%rax),%rdx
   d:	e9 0d 00 00 00       	jmp    0x1f
  12:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  19:	00 00 00 
  1c:	0f 1f 00             	nopl   (%rax)
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 3b 00 00 00       	mov    $0x3b,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 7d de 12 00 	mov    0x12de7d(%rip),%rcx        # 0x12deb7
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 7d de 12 00 	mov    0x12de7d(%rip),%rcx        # 0x12de8d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[  262.195911][    C0] RSP: 002b:00007ffc7dce9408 EFLAGS: 00000202 ORIG_RAX: 000000000000003b
[  262.195912][    C0] RAX: ffffffffffffffda RBX: 0000558dda3ff210 RCX: 00007f8a1caa7f4b
[  262.195913][    C0] RDX: 0000558dda5e3d20 RSI: 0000558dda5fac90 RDI: 0000558dda3ff210
[  262.195914][    C0] RBP: 00007ffc7dce94f0 R08: 00007ffc7dce9330 R09: 0000000000000000
[  262.195915][    C0] R10: 0000000000000008 R11: 0000000000000202 R12: 0000558dda3ff210


Finger prints:
check_prev_add:validate_chain:__lock_acquire:_raw_spin_lock_bh:___neigh_create