======================================
| [ 2996.983084][T27128] 1 lock held by ip/27128:
| [2996.983284][T27128] #0: ffff88800bc1b230 (&tb->tb6_lock){+.-.}-{3:3}, at: __ip6_del_rt (net/ipv6/route.c:3904) 
| [ 2996.983627][T27128]
| [ 2996.983627][T27128] stack backtrace:
[ 2996.983871][T27128] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2996.983874][T27128] Call Trace:
[ 2996.983876][T27128]  <TASK>
[2996.983878][T27128] dump_stack_lvl (lib/dump_stack.c:123) 
[2996.983889][T27128] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) 
[2996.983901][T27128] nexthop_for_each_fib6_nh (net/ipv4/nexthop.c:1521 (discriminator 11)) 
[2996.983908][T27128] ? __pfx_rt6_nh_flush_exceptions (net/ipv6/route.c:1778) 
[2996.983918][T27128] fib6_purge_rt (net/ipv6/ip6_fib.c:1023 net/ipv6/ip6_fib.c:1049) 
[2996.983927][T27128] ? fib6_repair_tree.part.0 (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:749 ./include/linux/atomic/atomic-instrumented.h:253 ./include/linux/refcount.h:184 ./include/linux/refcount.h:241 ./include/linux/refcount.h:258 ./include/net/ip6_fib.h:331 net/ipv6/ip6_fib.c:1881) 
[2996.983931][T27128] ? __pfx_fib6_purge_rt (net/ipv6/ip6_fib.c:1044) 
[2996.983945][T27128] fib6_del_route (net/ipv6/ip6_fib.c:2026) 
[2996.983959][T27128] ? __pfx_fib6_del_route (net/ipv6/ip6_fib.c:1947) 
[2996.983965][T27128] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[2996.983971][T27128] ? 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) 
[2996.983981][T27128] fib6_del (net/ipv6/ip6_fib.c:2070) 
[2996.983990][T27128] __ip6_del_rt (./include/linux/spinlock.h:396 net/ipv6/route.c:3905) 
[2996.983996][T27128] ip6_route_del (net/ipv6/route.c:4115) 
[2996.984004][T27128] ? __pfx_ip6_route_del (net/ipv6/route.c:4059) 
[2996.984015][T27128] ? inet6_rtm_delroute (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/ipv6/route.c:5651) 
[2996.984023][T27128] inet6_rtm_delroute (net/ipv6/route.c:5663) 
[2996.984027][T27128] ? __pfx_inet6_rtm_delroute (net/ipv6/route.c:5640) 
[2996.984054][T27128] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) 
[2996.984065][T27128] ? __pfx_inet6_rtm_delroute (net/ipv6/route.c:5640) 
[2996.984068][T27128] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) 
[2996.984075][T27128] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[2996.984080][T27128] ? 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:230) 
[2996.984084][T27128] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[2996.984093][T27128] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[2996.984100][T27128] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[2996.984106][T27128] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[2996.984113][T27128] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[2996.984134][T27128] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[2996.984140][T27128] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[2996.984147][T27128] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[2996.984156][T27128] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[2996.984161][T27128] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[2996.984171][T27128] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[2996.984181][T27128] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[2996.984197][T27128] ____sys_sendmsg (net/socket.c:712 net/socket.c:727 net/socket.c:2566) 
[2996.984205][T27128] ? __pfx_____sys_sendmsg (net/socket.c:2512) 
[2996.984208][T27128] ? __pfx_copy_msghdr_from_user (net/socket.c:2492) 
[2996.984227][T27128] ___sys_sendmsg (net/socket.c:2622) 
[2996.984230][T27128] ? 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:230) 
[2996.984237][T27128] ? __pfx____sys_sendmsg (net/socket.c:2609) 
[2996.984247][T27128] ? hlock_class (kernel/locking/lockdep.c:225) 
[2996.984259][T27128] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1339) 
[2996.984265][T27128] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1339) 
[2996.984276][T27128] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[2996.984283][T27128] ? __lock_release (kernel/locking/lockdep.c:5527) 
[2996.984291][T27128] __sys_sendmsg (net/socket.c:2652) 
[2996.984295][T27128] ? __pfx___sys_sendmsg (net/socket.c:2637) 
[2996.984307][T27128] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[2996.984320][T27128] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[2996.984327][T27128] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 2996.984332][T27128] RIP: 0033:0x7fef59dbe9a7
[ 2996.984337][T27128] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0a 00                	or     (%rax),%al
   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 b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[ 2996.984340][T27128] RSP: 002b:00007fff41328248 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 2996.984344][T27128] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fef59dbe9a7
[ 2996.984346][T27128] RDX: 0000000000000000 RSI: 00007fff413282b0 RDI: 0000000000000005
[ 2996.984348][T27128] RBP: 00007fff4132a7f0 R08: 0000000000000004 R09: 0000000000000000
[ 2996.984350][T27128] R10: 00007fef59c77708 R11: 0000000000000246 R12: 00007fff413295c0
[ 2996.984352][T27128] R13: 0000000067dd6ae3 R14: 0000000000498600 R15: 0000000000000001
| [ 2996.998869][T27128] 1 lock held by ip/27128:
| [2996.999062][T27128] #0: ffff88800bc1b230 (&tb->tb6_lock){+.-.}-{3:3}, at: __ip6_del_rt (net/ipv6/route.c:3904) 
| [ 2996.999424][T27128]
| [ 2996.999424][T27128] stack backtrace:
[ 2996.999668][T27128] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2996.999670][T27128] Call Trace:
[ 2996.999673][T27128]  <TASK>
[2996.999676][T27128] dump_stack_lvl (lib/dump_stack.c:123) 
[2996.999686][T27128] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) 
[2996.999699][T27128] nexthop_is_blackhole (./include/net/nexthop.h:382 (discriminator 11)) 
[2996.999704][T27128] rt6_fill_node.constprop.0 (net/ipv6/route.c:5924) 
[2996.999710][T27128] ? __kmalloc_node_track_caller_noprof (mm/slub.c:4315) 
[2996.999717][T27128] ? __create_object (mm/kmemleak.c:766) 
[2996.999732][T27128] ? __pfx_rt6_fill_node.constprop.0 (net/ipv6/route.c:5778) 
[2996.999736][T27128] ? __build_skb_around (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 net/core/skbuff.c:381 net/core/skbuff.c:439) 
[2996.999745][T27128] ? __alloc_skb (net/core/skbuff.c:685) 
[2996.999749][T27128] ? __pfx___alloc_skb (net/core/skbuff.c:642) 
[2996.999752][T27128] ? rt6_nlmsg_size (net/ipv6/route.c:5746) 
[2996.999757][T27128] ? __pfx_rt6_nlmsg_size (net/ipv6/route.c:5706) 
[2996.999766][T27128] ? inet6_rt_notify (net/ipv6/route.c:6372) 
[2996.999770][T27128] inet6_rt_notify (net/ipv6/route.c:6372) 
[2996.999781][T27128] fib6_del_route (net/ipv6/ip6_fib.c:2034) 
[2996.999795][T27128] ? __pfx_fib6_del_route (net/ipv6/ip6_fib.c:1947) 
[2996.999805][T27128] ? 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) 
[2996.999816][T27128] fib6_del (net/ipv6/ip6_fib.c:2070) 
[2996.999825][T27128] __ip6_del_rt (./include/linux/spinlock.h:396 net/ipv6/route.c:3905) 
[2996.999830][T27128] ip6_route_del (net/ipv6/route.c:4115) 
[2996.999837][T27128] ? __pfx_ip6_route_del (net/ipv6/route.c:4059) 
[2996.999848][T27128] ? inet6_rtm_delroute (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/ipv6/route.c:5651) 
[2996.999857][T27128] inet6_rtm_delroute (net/ipv6/route.c:5663) 
[2996.999861][T27128] ? __pfx_inet6_rtm_delroute (net/ipv6/route.c:5640) 
[2996.999889][T27128] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) 
[2996.999898][T27128] ? __pfx_inet6_rtm_delroute (net/ipv6/route.c:5640) 
[2996.999902][T27128] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) 
[2996.999909][T27128] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[2996.999914][T27128] ? 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:230) 
[2996.999917][T27128] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[2996.999927][T27128] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[2996.999934][T27128] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[2996.999940][T27128] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[2996.999948][T27128] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[2996.999969][T27128] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[2996.999975][T27128] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[2996.999983][T27128] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[2996.999991][T27128] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[2996.999996][T27128] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[2997.000007][T27128] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[2997.000016][T27128] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[2997.000032][T27128] ____sys_sendmsg (net/socket.c:712 net/socket.c:727 net/socket.c:2566) 
[2997.000041][T27128] ? __pfx_____sys_sendmsg (net/socket.c:2512) 
[2997.000045][T27128] ? __pfx_copy_msghdr_from_user (net/socket.c:2492) 
[2997.000063][T27128] ___sys_sendmsg (net/socket.c:2622) 
[2997.000067][T27128] ? 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:230) 
[2997.000073][T27128] ? __pfx____sys_sendmsg (net/socket.c:2609) 
[2997.000083][T27128] ? hlock_class (kernel/locking/lockdep.c:225) 
[2997.000095][T27128] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1339) 
[2997.000102][T27128] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1339) 
[2997.000113][T27128] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[2997.000120][T27128] ? __lock_release (kernel/locking/lockdep.c:5527) 
[2997.000128][T27128] __sys_sendmsg (net/socket.c:2652) 
[2997.000131][T27128] ? __pfx___sys_sendmsg (net/socket.c:2637) 
[2997.000144][T27128] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[2997.000157][T27128] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[2997.000163][T27128] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 2997.000167][T27128] RIP: 0033:0x7fef59dbe9a7
[ 2997.000172][T27128] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0a 00                	or     (%rax),%al
   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 b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[ 2997.000175][T27128] RSP: 002b:00007fff41328248 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 2997.000179][T27128] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fef59dbe9a7
[ 2997.000181][T27128] RDX: 0000000000000000 RSI: 00007fff413282b0 RDI: 0000000000000005
[ 2997.000183][T27128] RBP: 00007fff4132a7f0 R08: 0000000000000004 R09: 0000000000000000
[ 2997.000184][T27128] R10: 00007fef59c77708 R11: 0000000000000246 R12: 00007fff413295c0
[ 2997.000186][T27128] R13: 0000000067dd6ae3 R14: 0000000000498600 R15: 0000000000000001
| [ 2997.017802][T27128] 1 lock held by ip/27128:
| [2997.017995][T27128] #0: ffff88800bc1b230 (&tb->tb6_lock){+.-.}-{3:3}, at: __ip6_del_rt (net/ipv6/route.c:3904) 
| [ 2997.018339][T27128]
| [ 2997.018339][T27128] stack backtrace:
[ 2997.018685][T27128] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2997.018687][T27128] Call Trace:
[ 2997.018689][T27128]  <TASK>
[2997.018692][T27128] dump_stack_lvl (lib/dump_stack.c:123) 
[2997.018701][T27128] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) 
[2997.018713][T27128] nexthop_fib6_nh (./include/net/nexthop.h:525 (discriminator 11)) 
[2997.018717][T27128] rt6_fill_node_nexthop (net/ipv6/route.c:5767) 
[2997.018724][T27128] rt6_fill_node.constprop.0 (net/ipv6/route.c:5927) 
[2997.018730][T27128] ? __kmalloc_node_track_caller_noprof (mm/slub.c:4315) 
[2997.018736][T27128] ? __create_object (mm/kmemleak.c:766) 
[2997.018752][T27128] ? __pfx_rt6_fill_node.constprop.0 (net/ipv6/route.c:5778) 
[2997.018756][T27128] ? __build_skb_around (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 net/core/skbuff.c:381 net/core/skbuff.c:439) 
[2997.018764][T27128] ? __alloc_skb (net/core/skbuff.c:685) 
[2997.018768][T27128] ? __pfx___alloc_skb (net/core/skbuff.c:642) 
[2997.018771][T27128] ? rt6_nlmsg_size (net/ipv6/route.c:5746) 
[2997.018776][T27128] ? __pfx_rt6_nlmsg_size (net/ipv6/route.c:5706) 
[2997.018785][T27128] ? inet6_rt_notify (net/ipv6/route.c:6372) 
[2997.018788][T27128] inet6_rt_notify (net/ipv6/route.c:6372) 
[2997.018800][T27128] fib6_del_route (net/ipv6/ip6_fib.c:2034) 
[2997.018814][T27128] ? __pfx_fib6_del_route (net/ipv6/ip6_fib.c:1947) 
[2997.018824][T27128] ? 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) 
[2997.018835][T27128] fib6_del (net/ipv6/ip6_fib.c:2070) 
[2997.018843][T27128] __ip6_del_rt (./include/linux/spinlock.h:396 net/ipv6/route.c:3905) 
[2997.018849][T27128] ip6_route_del (net/ipv6/route.c:4115) 
[2997.018857][T27128] ? __pfx_ip6_route_del (net/ipv6/route.c:4059) 
[2997.018868][T27128] ? inet6_rtm_delroute (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/ipv6/route.c:5651) 
[2997.018876][T27128] inet6_rtm_delroute (net/ipv6/route.c:5663) 
[2997.018880][T27128] ? __pfx_inet6_rtm_delroute (net/ipv6/route.c:5640) 
[2997.018907][T27128] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) 
[2997.018917][T27128] ? __pfx_inet6_rtm_delroute (net/ipv6/route.c:5640) 
[2997.018921][T27128] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) 
[2997.018928][T27128] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[2997.018933][T27128] ? 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:230) 
[2997.018936][T27128] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[2997.018946][T27128] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[2997.018953][T27128] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[2997.018959][T27128] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[2997.018967][T27128] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[2997.018988][T27128] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[2997.018994][T27128] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[2997.019001][T27128] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[2997.019010][T27128] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[2997.019015][T27128] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[2997.019025][T27128] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[2997.019034][T27128] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[2997.019051][T27128] ____sys_sendmsg (net/socket.c:712 net/socket.c:727 net/socket.c:2566) 
[2997.019059][T27128] ? __pfx_____sys_sendmsg (net/socket.c:2512) 
[2997.019063][T27128] ? __pfx_copy_msghdr_from_user (net/socket.c:2492) 
[2997.019092][T27128] ___sys_sendmsg (net/socket.c:2622) 
[2997.019095][T27128] ? 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:230) 
[2997.019102][T27128] ? __pfx____sys_sendmsg (net/socket.c:2609) 
[2997.019112][T27128] ? hlock_class (kernel/locking/lockdep.c:225) 
[2997.019124][T27128] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1339) 
[2997.019131][T27128] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1339) 
[2997.019142][T27128] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[2997.019149][T27128] ? __lock_release (kernel/locking/lockdep.c:5527) 
[2997.019158][T27128] __sys_sendmsg (net/socket.c:2652) 
[2997.019161][T27128] ? __pfx___sys_sendmsg (net/socket.c:2637) 
[2997.019175][T27128] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[2997.019187][T27128] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[2997.019195][T27128] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 2997.019200][T27128] RIP: 0033:0x7fef59dbe9a7
[ 2997.019206][T27128] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0a 00                	or     (%rax),%al
   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 b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[ 2997.019209][T27128] RSP: 002b:00007fff41328248 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 2997.019213][T27128] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fef59dbe9a7
[ 2997.019215][T27128] RDX: 0000000000000000 RSI: 00007fff413282b0 RDI: 0000000000000005
[ 2997.019217][T27128] RBP: 00007fff4132a7f0 R08: 0000000000000004 R09: 0000000000000000
[ 2997.019218][T27128] R10: 00007fef59c77708 R11: 0000000000000246 R12: 00007fff413295c0


Finger prints:
lockdep_rcu_suspicious:nexthop_for_each_fib6_nh:fib6_purge_rt:fib6_del_route:fib6_del
lockdep_rcu_suspicious:nexthop_fib6_nh:rt6_fill_node_nexthop:inet6_rt_notify:fib6_del_route
lockdep_rcu_suspicious:nexthop_is_blackhole:inet6_rt_notify:fib6_del_route:fib6_del