======================================
| [ 2842.933158][T13771] 1 lock held by ip/13771:
| [2842.933337][T13771] #0: ffff888005449a30 (&tb->tb6_lock){+.-.}-{3:3}, at: __ip6_del_rt (net/ipv6/route.c:3904) 
| [ 2842.933656][T13771]
| [ 2842.933656][T13771] stack backtrace:
[ 2842.933874][T13771] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2842.933877][T13771] Call Trace:
[ 2842.933879][T13771]  <TASK>
[2842.933881][T13771] dump_stack_lvl (lib/dump_stack.c:123) 
[2842.933891][T13771] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) 
[2842.933904][T13771] nexthop_for_each_fib6_nh (net/ipv4/nexthop.c:1521 (discriminator 11)) 
[2842.933910][T13771] ? __pfx_rt6_nh_flush_exceptions (net/ipv6/route.c:1778) 
[2842.933919][T13771] fib6_purge_rt (net/ipv6/ip6_fib.c:1023 net/ipv6/ip6_fib.c:1049) 
[2842.933929][T13771] ? 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) 
[2842.933933][T13771] ? __pfx_fib6_purge_rt (net/ipv6/ip6_fib.c:1044) 
[2842.933946][T13771] fib6_del_route (net/ipv6/ip6_fib.c:2026) 
[2842.933961][T13771] ? __pfx_fib6_del_route (net/ipv6/ip6_fib.c:1947) 
[2842.933966][T13771] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[2842.933973][T13771] ? 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) 
[2842.933983][T13771] fib6_del (net/ipv6/ip6_fib.c:2070) 
[2842.933992][T13771] __ip6_del_rt (./include/linux/spinlock.h:396 net/ipv6/route.c:3905) 
[2842.933997][T13771] ip6_route_del (net/ipv6/route.c:4115) 
[2842.934005][T13771] ? __pfx_ip6_route_del (net/ipv6/route.c:4059) 
[2842.934016][T13771] ? inet6_rtm_delroute (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/ipv6/route.c:5651) 
[2842.934024][T13771] inet6_rtm_delroute (net/ipv6/route.c:5663) 
[2842.934029][T13771] ? __pfx_inet6_rtm_delroute (net/ipv6/route.c:5640) 
[2842.934055][T13771] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) 
[2842.934067][T13771] ? __pfx_inet6_rtm_delroute (net/ipv6/route.c:5640) 
[2842.934071][T13771] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) 
[2842.934078][T13771] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[2842.934082][T13771] ? 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) 
[2842.934086][T13771] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[2842.934095][T13771] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[2842.934102][T13771] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[2842.934108][T13771] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[2842.934115][T13771] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[2842.934136][T13771] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[2842.934142][T13771] ? 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) 
[2842.934149][T13771] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[2842.934158][T13771] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[2842.934163][T13771] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[2842.934173][T13771] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[2842.934182][T13771] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[2842.934199][T13771] ____sys_sendmsg (net/socket.c:712 net/socket.c:727 net/socket.c:2566) 
[2842.934206][T13771] ? __pfx_____sys_sendmsg (net/socket.c:2512) 
[2842.934210][T13771] ? __pfx_copy_msghdr_from_user (net/socket.c:2492) 
[2842.934229][T13771] ___sys_sendmsg (net/socket.c:2622) 
[2842.934232][T13771] ? 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) 
[2842.934238][T13771] ? __pfx____sys_sendmsg (net/socket.c:2609) 
[2842.934248][T13771] ? hlock_class (kernel/locking/lockdep.c:225) 
[2842.934260][T13771] ? 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) 
[2842.934267][T13771] ? 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) 
[2842.934278][T13771] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[2842.934285][T13771] ? __lock_release (kernel/locking/lockdep.c:5527) 
[2842.934292][T13771] __sys_sendmsg (net/socket.c:2652) 
[2842.934296][T13771] ? __pfx___sys_sendmsg (net/socket.c:2637) 
[2842.934309][T13771] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[2842.934321][T13771] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[2842.934328][T13771] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 2842.934334][T13771] RIP: 0033:0x7fe9ab8ba9a7
[ 2842.934339][T13771] 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)
[ 2842.934342][T13771] RSP: 002b:00007ffeb11edc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 2842.934346][T13771] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe9ab8ba9a7
[ 2842.934348][T13771] RDX: 0000000000000000 RSI: 00007ffeb11edcf0 RDI: 0000000000000005
[ 2842.934350][T13771] RBP: 00007ffeb11f0230 R08: 0000000000000004 R09: 0000000000000000
[ 2842.934352][T13771] R10: 00007fe9ab773708 R11: 0000000000000246 R12: 00007ffeb11ef000
[ 2842.934354][T13771] R13: 0000000067dd405c R14: 0000000000498600 R15: 0000000000000001
| [ 2842.949381][T13771] 1 lock held by ip/13771:
| [2842.949556][T13771] #0: ffff888005449a30 (&tb->tb6_lock){+.-.}-{3:3}, at: __ip6_del_rt (net/ipv6/route.c:3904) 
| [ 2842.949874][T13771]
| [ 2842.949874][T13771] stack backtrace:
[ 2842.950109][T13771] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2842.950111][T13771] Call Trace:
[ 2842.950112][T13771]  <TASK>
[2842.950115][T13771] dump_stack_lvl (lib/dump_stack.c:123) 
[2842.950122][T13771] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) 
[2842.950133][T13771] nexthop_is_blackhole (./include/net/nexthop.h:382 (discriminator 11)) 
[2842.950138][T13771] rt6_fill_node.constprop.0 (net/ipv6/route.c:5924) 
[2842.950143][T13771] ? __kmalloc_node_track_caller_noprof (mm/slub.c:4315) 
[2842.950149][T13771] ? __create_object (mm/kmemleak.c:766) 
[2842.950164][T13771] ? __pfx_rt6_fill_node.constprop.0 (net/ipv6/route.c:5778) 
[2842.950169][T13771] ? __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) 
[2842.950177][T13771] ? __alloc_skb (net/core/skbuff.c:685) 
[2842.950181][T13771] ? __pfx___alloc_skb (net/core/skbuff.c:642) 
[2842.950184][T13771] ? rt6_nlmsg_size (net/ipv6/route.c:5746) 
[2842.950189][T13771] ? __pfx_rt6_nlmsg_size (net/ipv6/route.c:5706) 
[2842.950198][T13771] ? inet6_rt_notify (net/ipv6/route.c:6372) 
[2842.950201][T13771] inet6_rt_notify (net/ipv6/route.c:6372) 
[2842.950212][T13771] fib6_del_route (net/ipv6/ip6_fib.c:2034) 
[2842.950227][T13771] ? __pfx_fib6_del_route (net/ipv6/ip6_fib.c:1947) 
[2842.950236][T13771] ? 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) 
[2842.950246][T13771] fib6_del (net/ipv6/ip6_fib.c:2070) 
[2842.950255][T13771] __ip6_del_rt (./include/linux/spinlock.h:396 net/ipv6/route.c:3905) 
[2842.950260][T13771] ip6_route_del (net/ipv6/route.c:4115) 
[2842.950268][T13771] ? __pfx_ip6_route_del (net/ipv6/route.c:4059) 
[2842.950278][T13771] ? inet6_rtm_delroute (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/ipv6/route.c:5651) 
[2842.950287][T13771] inet6_rtm_delroute (net/ipv6/route.c:5663) 
[2842.950291][T13771] ? __pfx_inet6_rtm_delroute (net/ipv6/route.c:5640) 
[2842.950318][T13771] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) 
[2842.950327][T13771] ? __pfx_inet6_rtm_delroute (net/ipv6/route.c:5640) 
[2842.950331][T13771] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) 
[2842.950338][T13771] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[2842.950343][T13771] ? 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) 
[2842.950347][T13771] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[2842.950356][T13771] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[2842.950363][T13771] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[2842.950368][T13771] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[2842.950375][T13771] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[2842.950397][T13771] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[2842.950402][T13771] ? 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) 
[2842.950410][T13771] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[2842.950418][T13771] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[2842.950423][T13771] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[2842.950434][T13771] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[2842.950443][T13771] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[2842.950459][T13771] ____sys_sendmsg (net/socket.c:712 net/socket.c:727 net/socket.c:2566) 
[2842.950466][T13771] ? __pfx_____sys_sendmsg (net/socket.c:2512) 
[2842.950470][T13771] ? __pfx_copy_msghdr_from_user (net/socket.c:2492) 
[2842.950488][T13771] ___sys_sendmsg (net/socket.c:2622) 
[2842.950492][T13771] ? 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) 
[2842.950498][T13771] ? __pfx____sys_sendmsg (net/socket.c:2609) 
[2842.950508][T13771] ? hlock_class (kernel/locking/lockdep.c:225) 
[2842.950520][T13771] ? 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) 
[2842.950525][T13771] ? 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) 
[2842.950536][T13771] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[2842.950543][T13771] ? __lock_release (kernel/locking/lockdep.c:5527) 
[2842.950551][T13771] __sys_sendmsg (net/socket.c:2652) 
[2842.950555][T13771] ? __pfx___sys_sendmsg (net/socket.c:2637) 
[2842.950568][T13771] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[2842.950580][T13771] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[2842.950586][T13771] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 2842.950590][T13771] RIP: 0033:0x7fe9ab8ba9a7
[ 2842.950593][T13771] 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)
[ 2842.950596][T13771] RSP: 002b:00007ffeb11edc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 2842.950600][T13771] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe9ab8ba9a7
[ 2842.950601][T13771] RDX: 0000000000000000 RSI: 00007ffeb11edcf0 RDI: 0000000000000005
[ 2842.950603][T13771] RBP: 00007ffeb11f0230 R08: 0000000000000004 R09: 0000000000000000
[ 2842.950605][T13771] R10: 00007fe9ab773708 R11: 0000000000000246 R12: 00007ffeb11ef000
[ 2842.950607][T13771] R13: 0000000067dd405c R14: 0000000000498600 R15: 0000000000000001
| [ 2842.965471][T13771] 1 lock held by ip/13771:
| [2842.965649][T13771] #0: ffff888005449a30 (&tb->tb6_lock){+.-.}-{3:3}, at: __ip6_del_rt (net/ipv6/route.c:3904) 
| [ 2842.965973][T13771]
| [ 2842.965973][T13771] stack backtrace:
[ 2842.966297][T13771] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2842.966299][T13771] Call Trace:
[ 2842.966300][T13771]  <TASK>
[2842.966302][T13771] dump_stack_lvl (lib/dump_stack.c:123) 
[2842.966309][T13771] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) 
[2842.966319][T13771] nexthop_fib6_nh (./include/net/nexthop.h:525 (discriminator 11)) 
[2842.966323][T13771] rt6_fill_node_nexthop (net/ipv6/route.c:5767) 
[2842.966330][T13771] rt6_fill_node.constprop.0 (net/ipv6/route.c:5927) 
[2842.966335][T13771] ? __kmalloc_node_track_caller_noprof (mm/slub.c:4315) 
[2842.966340][T13771] ? __create_object (mm/kmemleak.c:766) 
[2842.966354][T13771] ? __pfx_rt6_fill_node.constprop.0 (net/ipv6/route.c:5778) 
[2842.966358][T13771] ? __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) 
[2842.966366][T13771] ? __alloc_skb (net/core/skbuff.c:685) 
[2842.966369][T13771] ? __pfx___alloc_skb (net/core/skbuff.c:642) 
[2842.966372][T13771] ? rt6_nlmsg_size (net/ipv6/route.c:5746) 
[2842.966377][T13771] ? __pfx_rt6_nlmsg_size (net/ipv6/route.c:5706) 
[2842.966387][T13771] ? inet6_rt_notify (net/ipv6/route.c:6372) 
[2842.966389][T13771] inet6_rt_notify (net/ipv6/route.c:6372) 
[2842.966400][T13771] fib6_del_route (net/ipv6/ip6_fib.c:2034) 
[2842.966415][T13771] ? __pfx_fib6_del_route (net/ipv6/ip6_fib.c:1947) 
[2842.966424][T13771] ? 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) 
[2842.966434][T13771] fib6_del (net/ipv6/ip6_fib.c:2070) 
[2842.966442][T13771] __ip6_del_rt (./include/linux/spinlock.h:396 net/ipv6/route.c:3905) 
[2842.966448][T13771] ip6_route_del (net/ipv6/route.c:4115) 
[2842.966455][T13771] ? __pfx_ip6_route_del (net/ipv6/route.c:4059) 
[2842.966466][T13771] ? inet6_rtm_delroute (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/ipv6/route.c:5651) 
[2842.966474][T13771] inet6_rtm_delroute (net/ipv6/route.c:5663) 
[2842.966479][T13771] ? __pfx_inet6_rtm_delroute (net/ipv6/route.c:5640) 
[2842.966506][T13771] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) 
[2842.966514][T13771] ? __pfx_inet6_rtm_delroute (net/ipv6/route.c:5640) 
[2842.966517][T13771] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) 
[2842.966525][T13771] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[2842.966530][T13771] ? 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) 
[2842.966533][T13771] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[2842.966543][T13771] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[2842.966550][T13771] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[2842.966554][T13771] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[2842.966561][T13771] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[2842.966583][T13771] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[2842.966588][T13771] ? 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) 
[2842.966596][T13771] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[2842.966605][T13771] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[2842.966610][T13771] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[2842.966620][T13771] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[2842.966630][T13771] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[2842.966647][T13771] ____sys_sendmsg (net/socket.c:712 net/socket.c:727 net/socket.c:2566) 
[2842.966654][T13771] ? __pfx_____sys_sendmsg (net/socket.c:2512) 
[2842.966657][T13771] ? __pfx_copy_msghdr_from_user (net/socket.c:2492) 
[2842.966676][T13771] ___sys_sendmsg (net/socket.c:2622) 
[2842.966679][T13771] ? 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) 
[2842.966686][T13771] ? __pfx____sys_sendmsg (net/socket.c:2609) 
[2842.966696][T13771] ? hlock_class (kernel/locking/lockdep.c:225) 
[2842.966708][T13771] ? 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) 
[2842.966713][T13771] ? 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) 
[2842.966724][T13771] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[2842.966731][T13771] ? __lock_release (kernel/locking/lockdep.c:5527) 
[2842.966739][T13771] __sys_sendmsg (net/socket.c:2652) 
[2842.966742][T13771] ? __pfx___sys_sendmsg (net/socket.c:2637) 
[2842.966755][T13771] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[2842.966768][T13771] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[2842.966774][T13771] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 2842.966777][T13771] RIP: 0033:0x7fe9ab8ba9a7
[ 2842.966780][T13771] 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)
[ 2842.966783][T13771] RSP: 002b:00007ffeb11edc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 2842.966786][T13771] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe9ab8ba9a7
[ 2842.966788][T13771] RDX: 0000000000000000 RSI: 00007ffeb11edcf0 RDI: 0000000000000005
[ 2842.966789][T13771] RBP: 00007ffeb11f0230 R08: 0000000000000004 R09: 0000000000000000
[ 2842.966791][T13771] R10: 00007fe9ab773708 R11: 0000000000000246 R12: 00007ffeb11ef000


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