======================================
| [   40.959634][  T314] 1 lock held by nft/314:
| [ 40.959761][ T314] #0: ffff8880058e6ec8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid (./include/linux/jiffies.h:101 net/netfilter/nf_tables_api.c:10954) nf_tables
| [   40.960188][  T314]
| [   40.960188][  T314] stack backtrace:
[   40.961135][  T314] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   40.961490][  T314] Call Trace:
[   40.961618][  T314]  <TASK>
[ 40.961715][ T314] dump_stack_lvl (lib/dump_stack.c:123) 
[ 40.961911][ T314] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 40.962102][ T314] nft_flowtable_lookup (net/netfilter/nf_tables_api.c:8380 (discriminator 7)) nf_tables
[ 40.962346][ T314] nf_tables_newflowtable (net/netfilter/nf_tables_api.c:8736) nf_tables
[ 40.962594][ T314] ? __pfx_nf_tables_newflowtable (net/netfilter/nf_tables_api.c:8711) nf_tables
[ 40.962835][ T314] ? net_generic (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48) 
[ 40.963012][ T314] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 40.963186][ T314] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 40.963358][ T314] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 40.963538][ T314] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 40.963720][ T314] nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:524) 
[ 40.963910][ T314] ? __pfx_nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:373) 
[ 40.964086][ T314] ? rcu_read_lock_any_held (kernel/rcu/update.c:387 kernel/rcu/update.c:380) 
[ 40.964264][ T314] ? find_stack (lib/stackdepot.c:552 (discriminator 1)) 
[ 40.964452][ T314] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 40.964625][ T314] ? validate_chain (kernel/locking/lockdep.c:3797 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) 
[ 40.964815][ T314] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 40.964997][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 40.965181][ T314] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 40.965358][ T314] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 40.965533][ T314] ? __nla_validate_parse (./include/net/netlink.h:1267 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) 
[ 40.965714][ T314] nfnetlink_rcv (net/netfilter/nfnetlink.c:647 net/netfilter/nfnetlink.c:665) 
[ 40.966020][ T314] ? __pfx_nfnetlink_rcv (net/netfilter/nfnetlink.c:651) 
[ 40.966195][ 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) 
[ 40.966372][ T314] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 40.966549][ T314] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 40.966737][ T314] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 40.966915][ T314] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 40.967092][ T314] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 40.967271][ T314] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 40.967452][ T314] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 40.967624][ T314] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 40.967850][ T314] ___sys_sendmsg (net/socket.c:2663) 
[ 40.968024][ T314] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 40.968197][ T314] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 40.968375][ T314] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 40.968547][ T314] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 40.968716][ T314] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 40.968890][ T314] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 40.969070][ T314] ? do_sock_getsockopt (net/socket.c:2388) 
[ 40.969242][ T314] ? do_sock_setsockopt (net/socket.c:2303) 
[ 40.969412][ T314] ? __pfx_do_sock_getsockopt (net/socket.c:2374) 
[ 40.969590][ 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) 
[ 40.969726][ T314] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 40.969898][ T314] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 40.970072][ T314] ? __pfx___sys_getsockopt (net/socket.c:2415) 
[ 40.970264][ T314] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 40.970438][ T314] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.970652][  T314] RIP: 0033:0x7f81057d37b7
[ 40.970830][ 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)
[   40.971423][  T314] RSP: 002b:00007ffd0b8dff98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   40.971675][  T314] RAX: ffffffffffffffda RBX: 00007ffd0b8f1190 RCX: 00007f81057d37b7
[   40.971912][  T314] RDX: 0000000000000000 RSI: 00007ffd0b8f1050 RDI: 0000000000000005
[   40.972148][  T314] RBP: 00007ffd0b8f1140 R08: 00007ffd0b8dff7c R09: 00007ffd0b8dffa0
[   40.972383][  T314] R10: 00007f810568c708 R11: 0000000000000246 R12: 00007ffd0b8f1090
[   40.972618][  T314] R13: 0000000000002c00 R14: 0000000000000005 R15: 00007ffd0b8dffb0
| [   43.013991][  T314] 1 lock held by nft/314:
| [ 43.014117][ T314] #0: ffff8880058e6ec8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid (./include/linux/jiffies.h:101 net/netfilter/nf_tables_api.c:10954) nf_tables
| [   43.015272][  T314]
| [   43.015272][  T314] stack backtrace:
[   43.015708][  T314] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   43.016056][  T314] Call Trace:
[   43.016180][  T314]  <TASK>
[ 43.016266][ T314] dump_stack_lvl (lib/dump_stack.c:123) 
[ 43.016431][ T314] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 43.016594][ T314] nft_set_lookup.part.0 (net/netfilter/nf_tables_api.c:4467) nf_tables
[ 43.016825][ T314] nf_tables_newset (net/netfilter/nf_tables_api.c:5230) nf_tables
[ 43.017052][ T314] ? __pfx_nf_tables_newset (net/netfilter/nf_tables_api.c:5072) nf_tables
[ 43.017284][ T314] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 43.017450][ T314] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 43.017608][ T314] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 43.017771][ T314] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 43.017936][ T314] nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:524) 
[ 43.018109][ T314] ? __pfx_nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:373) 
[ 43.018268][ T314] ? rcu_read_lock_any_held (kernel/rcu/update.c:387 kernel/rcu/update.c:380) 
[ 43.018429][ T314] ? find_stack (lib/stackdepot.c:552 (discriminator 1)) 
[ 43.018592][ T314] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 43.018747][ T314] ? validate_chain (kernel/locking/lockdep.c:3797 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) 
[ 43.018920][ T314] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 43.019099][ T314] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 43.019261][ T314] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 43.019420][ T314] ? __nla_validate_parse (./include/net/netlink.h:1267 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) 
[ 43.019583][ T314] nfnetlink_rcv (net/netfilter/nfnetlink.c:647 net/netfilter/nfnetlink.c:665) 
[ 43.019744][ T314] ? __pfx_nfnetlink_rcv (net/netfilter/nfnetlink.c:651) 
[ 43.019906][ 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) 
[ 43.020075][ T314] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 43.020236][ T314] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 43.020402][ T314] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 43.020565][ T314] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 43.020726][ T314] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 43.020893][ T314] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 43.021056][ T314] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 43.021215][ T314] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 43.021423][ T314] ___sys_sendmsg (net/socket.c:2663) 
[ 43.021580][ T314] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 43.021740][ T314] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 43.021904][ T314] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 43.022062][ T314] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 43.022219][ T314] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 43.022386][ T314] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 43.022557][ T314] ? do_sock_getsockopt (net/socket.c:2388) 
[ 43.022717][ T314] ? do_sock_setsockopt (net/socket.c:2303) 
[ 43.022875][ T314] ? __pfx_do_sock_getsockopt (net/socket.c:2374) 
[ 43.023040][ 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) 
[ 43.023166][ T314] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 43.023325][ T314] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 43.023486][ T314] ? __pfx___sys_getsockopt (net/socket.c:2415) 
[ 43.023662][ T314] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 43.023823][ T314] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.024021][  T314] RIP: 0033:0x7f81057d37b7
[ 43.024187][ 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)
[   43.024729][  T314] RSP: 002b:00007ffd0b8dff98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.024970][  T314] RAX: ffffffffffffffda RBX: 00007ffd0b8f1190 RCX: 00007f81057d37b7
[   43.025208][  T314] RDX: 0000000000000000 RSI: 00007ffd0b8f1050 RDI: 0000000000000005
[   43.025444][  T314] RBP: 00007ffd0b8f1140 R08: 00007ffd0b8dff7c R09: 00007ffd0b8dffa0
[   43.025683][  T314] R10: 00007f810568c708 R11: 0000000000000246 R12: 00007ffd0b8f1090
[   43.025917][  T314] R13: 0000000000002c00 R14: 0000000000000005 R15: 00007ffd0b8dffb0
| [ 157.384494][ T11] #2: ffffffffab5cf8d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net (net/core/net_namespace.c:590) 
| [ 157.384793][ T11] #3: ffff888005c088c8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_exit_net (net/netfilter/nf_tables_api.c:10288 net/netfilter/nf_tables_api.c:11635) nf_tables
| [  157.385200][   T11]
| [  157.385200][   T11] stack backtrace:
[  157.385708][   T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  157.386169][   T11] Workqueue: netns cleanup_net
[  157.386342][   T11] Call Trace:
[  157.386473][   T11]  <TASK>
[ 157.386565][ T11] dump_stack_lvl (lib/dump_stack.c:123) 
[ 157.386738][ T11] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 157.386908][ T11] nft_hash_walk (net/netfilter/nft_set_hash.c:650 (discriminator 7)) nf_tables
[ 157.387103][ T11] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 157.387325][ T11] nft_map_deactivate (net/netfilter/nf_tables_api.c:694) nf_tables
[ 157.387559][ T11] ? __pfx_nft_map_deactivate (net/netfilter/nf_tables_api.c:687) nf_tables
[ 157.387788][ T11] ? __pfx_nft_mapelem_deactivate (net/netfilter/nf_tables_api.c:650) nf_tables
[ 157.388020][ T11] ? mark_held_locks (kernel/locking/lockdep.c:4321) 
[ 157.388190][ T11] nf_tables_deactivate_set (net/netfilter/nf_tables_api.c:5660) nf_tables
[ 157.388424][ T11] nft_rule_expr_deactivate (net/netfilter/nf_tables_api.c:524) nf_tables
[ 157.388656][ T11] __nft_release_table (./include/net/netfilter/nf_tables.h:1014 ./include/net/netfilter/nf_tables.h:1020 net/netfilter/nf_tables_api.c:3863 net/netfilter/nf_tables_api.c:3874 net/netfilter/nf_tables_api.c:11501) nf_tables
[ 157.388898][ T11] ? __pfx___nft_release_table (net/netfilter/nf_tables_api.c:11480) nf_tables
[ 157.389129][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 157.389310][ T11] ? net_generic (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48) nf_tables
[ 157.389505][ T11] nf_tables_exit_net (net/netfilter/nf_tables_api.c:11535 net/netfilter/nf_tables_api.c:11643) nf_tables
[ 157.389867][ T11] ops_exit_list (net/core/net_namespace.c:173 (discriminator 3)) 
[ 157.390035][ T11] cleanup_net (net/core/net_namespace.c:632 (discriminator 3)) 
[ 157.390200][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 157.390370][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:577) 
[ 157.390526][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 157.390695][ T11] ? process_one_work (kernel/workqueue.c:3205) 
[ 157.390856][ T11] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 157.391017][ T11] ? process_one_work (kernel/workqueue.c:3205) 
[ 157.391280][ T11] process_one_work (kernel/workqueue.c:3229) 
[ 157.391454][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 157.391620][ T11] ? __pfx_process_one_work (kernel/workqueue.c:3131) 
[ 157.391793][ T11] ? assign_work (kernel/workqueue.c:1200) 
[ 157.392062][ T11] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391) 
[ 157.392242][ T11] ? __pfx_worker_thread (kernel/workqueue.c:3337) 
[ 157.392399][ T11] kthread (kernel/kthread.c:389) 
[ 157.392518][ T11] ? __pfx_kthread (kernel/kthread.c:342) 
[ 157.392682][ T11] ret_from_fork (arch/x86/kernel/process.c:147) 
[ 157.392845][ 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