======================================
| [   44.955523][  T314] 1 lock held by nft/314:
| [ 44.955648][ T314] #0: ffff88800780f4c8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid (./include/linux/jiffies.h:101 net/netfilter/nf_tables_api.c:10957) nf_tables
| [   44.956079][  T314]
| [   44.956079][  T314] stack backtrace:
[   44.956582][  T314] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   44.957475][  T314] Call Trace:
[   44.957625][  T314]  <TASK>
[ 44.957722][ T314] dump_stack_lvl (lib/dump_stack.c:123) 
[ 44.957906][ T314] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 44.958085][ T314] nft_flowtable_lookup (net/netfilter/nf_tables_api.c:8383 (discriminator 7)) nf_tables
[ 44.958322][ T314] nf_tables_newflowtable (net/netfilter/nf_tables_api.c:8739) nf_tables
[ 44.958599][ T314] ? __pfx_nf_tables_newflowtable (net/netfilter/nf_tables_api.c:8714) nf_tables
[ 44.958846][ T314] ? net_generic (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48) 
[ 44.959029][ T314] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 44.959200][ T314] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 44.959374][ T314] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 44.959558][ T314] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 44.959739][ T314] nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:524) 
[ 44.959932][ T314] ? __pfx_nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:373) 
[ 44.960110][ T314] ? rcu_read_lock_any_held (kernel/rcu/update.c:387 kernel/rcu/update.c:380) 
[ 44.960285][ T314] ? find_stack (lib/stackdepot.c:552 (discriminator 1)) 
[ 44.960474][ T314] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 44.960650][ T314] ? validate_chain (kernel/locking/lockdep.c:3797 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) 
[ 44.960833][ T314] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 44.961018][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 44.961202][ T314] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 44.961377][ T314] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 44.961556][ T314] ? __nla_validate_parse (./include/net/netlink.h:1267 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) 
[ 44.961735][ T314] nfnetlink_rcv (net/netfilter/nfnetlink.c:647 net/netfilter/nfnetlink.c:665) 
[ 44.961912][ T314] ? __pfx_nfnetlink_rcv (net/netfilter/nfnetlink.c:651) 
[ 44.962096][ T314] ? 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) 
[ 44.962275][ T314] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 44.962450][ T314] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 44.962629][ T314] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 44.962807][ T314] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 44.962980][ T314] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 44.963160][ T314] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 44.963357][ T314] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 44.963530][ T314] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 44.963755][ T314] ___sys_sendmsg (net/socket.c:2663) 
[ 44.963928][ T314] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 44.964100][ T314] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 44.964280][ T314] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 44.964453][ T314] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 44.964636][ T314] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 44.964808][ T314] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 44.964988][ T314] ? do_sock_getsockopt (net/socket.c:2388) 
[ 44.965161][ T314] ? do_sock_setsockopt (net/socket.c:2303) 
[ 44.965329][ T314] ? __pfx_do_sock_getsockopt (net/socket.c:2374) 
[ 44.965509][ T314] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 44.965646][ T314] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 44.965819][ T314] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 44.965992][ T314] ? __pfx___sys_getsockopt (net/socket.c:2415) 
[ 44.966182][ T314] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 44.966380][ T314] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.966608][  T314] RIP: 0033:0x7fd3dfd4d7b7
[ 44.966786][ T314] 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)
[   44.967375][  T314] RSP: 002b:00007ffd70035ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   44.967637][  T314] RAX: ffffffffffffffda RBX: 00007ffd70046da0 RCX: 00007fd3dfd4d7b7
[   44.967891][  T314] RDX: 0000000000000000 RSI: 00007ffd70046c60 RDI: 0000000000000005
[   44.968147][  T314] RBP: 00007ffd70046d50 R08: 00007ffd70035b8c R09: 00007ffd70035bb0
[   44.968404][  T314] R10: 00007fd3dfc06708 R11: 0000000000000246 R12: 00007ffd70046ca0
[   44.968660][  T314] R13: 0000000000002c00 R14: 0000000000000005 R15: 00007ffd70035bc0
| [   47.330038][  T314] 1 lock held by nft/314:
| [ 47.330197][ T314] #0: ffff88800780f4c8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid (./include/linux/jiffies.h:101 net/netfilter/nf_tables_api.c:10957) nf_tables
| [   47.331646][  T314]
| [   47.331646][  T314] stack backtrace:
[   47.332234][  T314] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   47.332630][  T314] Call Trace:
[   47.332755][  T314]  <TASK>
[ 47.332855][ T314] dump_stack_lvl (lib/dump_stack.c:123) 
[ 47.333030][ T314] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 47.333232][ T314] nft_set_lookup.part.0 (net/netfilter/nf_tables_api.c:4470) nf_tables
[ 47.333477][ T314] nf_tables_newset (net/netfilter/nf_tables_api.c:5233) nf_tables
[ 47.333734][ T314] ? __pfx_nf_tables_newset (net/netfilter/nf_tables_api.c:5075) nf_tables
[ 47.334008][ T314] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 47.334181][ T314] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 47.334363][ T314] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 47.334554][ T314] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 47.334726][ T314] nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:524) 
[ 47.334928][ T314] ? __pfx_nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:373) 
[ 47.335112][ T314] ? rcu_read_lock_any_held (kernel/rcu/update.c:387 kernel/rcu/update.c:380) 
[ 47.335290][ T314] ? find_stack (lib/stackdepot.c:552 (discriminator 1)) 
[ 47.335483][ T314] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 47.335647][ T314] ? validate_chain (kernel/locking/lockdep.c:3797 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) 
[ 47.335834][ T314] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 47.336040][ T314] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 47.336209][ T314] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 47.336393][ T314] ? __nla_validate_parse (./include/net/netlink.h:1267 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) 
[ 47.336569][ T314] nfnetlink_rcv (net/netfilter/nfnetlink.c:647 net/netfilter/nfnetlink.c:665) 
[ 47.336758][ T314] ? __pfx_nfnetlink_rcv (net/netfilter/nfnetlink.c:651) 
[ 47.336932][ T314] ? 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) 
[ 47.337119][ T314] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 47.337288][ T314] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 47.337483][ T314] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 47.337651][ T314] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 47.337843][ T314] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 47.338024][ T314] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 47.338217][ T314] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 47.338383][ T314] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 47.338620][ T314] ___sys_sendmsg (net/socket.c:2663) 
[ 47.338811][ T314] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 47.338978][ T314] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 47.339146][ T314] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 47.339311][ T314] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 47.339473][ T314] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 47.339638][ T314] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 47.339812][ T314] ? do_sock_getsockopt (net/socket.c:2388) 
[ 47.339975][ T314] ? do_sock_setsockopt (net/socket.c:2303) 
[ 47.340147][ T314] ? __pfx_do_sock_getsockopt (net/socket.c:2374) 
[ 47.340367][ T314] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 47.340499][ T314] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 47.340664][ T314] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 47.340829][ T314] ? __pfx___sys_getsockopt (net/socket.c:2415) 
[ 47.341010][ T314] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 47.341186][ T314] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   47.341404][  T314] RIP: 0033:0x7fd3dfd4d7b7
[ 47.341582][ T314] 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)
[   47.342158][  T314] RSP: 002b:00007ffd70035ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   47.342421][  T314] RAX: ffffffffffffffda RBX: 00007ffd70046da0 RCX: 00007fd3dfd4d7b7
[   47.342666][  T314] RDX: 0000000000000000 RSI: 00007ffd70046c60 RDI: 0000000000000005
[   47.342921][  T314] RBP: 00007ffd70046d50 R08: 00007ffd70035b8c R09: 00007ffd70035bb0
[   47.343169][  T314] R10: 00007fd3dfc06708 R11: 0000000000000246 R12: 00007ffd70046ca0
[   47.343423][  T314] R13: 0000000000002c00 R14: 0000000000000005 R15: 00007ffd70035bc0
| [ 195.582757][ T11] #2: ffffffffa2fcf8d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net (net/core/net_namespace.c:590) 
| [ 195.583090][ T11] #3: ffff88800518eec8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_exit_net (net/netfilter/nf_tables_api.c:10291 net/netfilter/nf_tables_api.c:11638) nf_tables
| [  195.583575][   T11]
| [  195.583575][   T11] stack backtrace:
[  195.584095][   T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  195.584491][   T11] Workqueue: netns cleanup_net
[  195.584676][   T11] Call Trace:
[  195.584805][   T11]  <TASK>
[ 195.584899][ T11] dump_stack_lvl (lib/dump_stack.c:123) 
[ 195.585080][ T11] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 195.585263][ T11] nft_hash_walk (net/netfilter/nft_set_hash.c:650 (discriminator 7)) nf_tables
[ 195.585461][ T11] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 195.585678][ T11] nft_map_deactivate (net/netfilter/nf_tables_api.c:694) nf_tables
[ 195.585907][ T11] ? __pfx_nft_map_deactivate (net/netfilter/nf_tables_api.c:687) nf_tables
[ 195.586141][ T11] ? __pfx_nft_mapelem_deactivate (net/netfilter/nf_tables_api.c:650) nf_tables
[ 195.586382][ T11] ? mark_held_locks (kernel/locking/lockdep.c:4321) 
[ 195.586554][ T11] nf_tables_deactivate_set (net/netfilter/nf_tables_api.c:5663) nf_tables
[ 195.586787][ T11] nft_rule_expr_deactivate (net/netfilter/nf_tables_api.c:524) nf_tables
[ 195.587021][ T11] __nft_release_table (./include/net/netfilter/nf_tables.h:1014 ./include/net/netfilter/nf_tables.h:1020 net/netfilter/nf_tables_api.c:3866 net/netfilter/nf_tables_api.c:3877 net/netfilter/nf_tables_api.c:11504) nf_tables
[ 195.587258][ T11] ? __pfx___nft_release_table (net/netfilter/nf_tables_api.c:11483) nf_tables
[ 195.587488][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 195.587673][ T11] ? net_generic (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48) nf_tables
[ 195.587877][ T11] nf_tables_exit_net (net/netfilter/nf_tables_api.c:11538 net/netfilter/nf_tables_api.c:11646) nf_tables
[ 195.588116][ T11] ops_exit_list (net/core/net_namespace.c:173 (discriminator 3)) 
[ 195.588284][ T11] cleanup_net (net/core/net_namespace.c:632 (discriminator 3)) 
[ 195.588455][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 195.588627][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:577) 
[ 195.588794][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 195.588973][ T11] ? process_one_work (kernel/workqueue.c:3205) 
[ 195.589151][ T11] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 195.589345][ T11] ? process_one_work (kernel/workqueue.c:3205) 
[ 195.589522][ T11] process_one_work (kernel/workqueue.c:3229) 
[ 195.589700][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 195.589873][ T11] ? __pfx_process_one_work (kernel/workqueue.c:3131) 
[ 195.590054][ T11] ? assign_work (kernel/workqueue.c:1200) 
[ 195.590236][ T11] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391) 
[ 195.590426][ T11] ? __pfx_worker_thread (kernel/workqueue.c:3337) 
[ 195.590603][ T11] kthread (kernel/kthread.c:389) 
[ 195.590737][ T11] ? __pfx_kthread (kernel/kthread.c:342) 
[ 195.590907][ T11] ret_from_fork (arch/x86/kernel/process.c:147) 
[ 195.591082][ T11] ? __pfx_kthread (kernel/kthread.c:342) 


Finger prints:
lockdep_rcu_suspicious:nft_hash_walk:nft_map_deactivate:nf_tables_deactivate_set:nft_rule_expr_deactivate
lockdep_rcu_suspicious:nft_flowtable_lookup:nf_tables_newflowtable:nfnetlink_rcv_batch:nfnetlink_rcv
lockdep_rcu_suspicious:nf_tables_newset:nfnetlink_rcv_batch:nfnetlink_rcv:netlink_unicast