======================================
| [   37.126339][  T266] 1 lock held by nft/266:
| [ 37.126497][ T266] #0: ffff888006abfac8 (&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
| [   37.127121][  T266]
| [   37.127121][  T266] stack backtrace:
[   37.127637][  T266] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   37.128187][  T266] Call Trace:
[   37.128340][  T266]  <TASK>
[ 37.128476][ T266] dump_stack_lvl (lib/dump_stack.c:123) 
[ 37.128678][ T266] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 37.128890][ T266] nft_set_lookup.part.0 (net/netfilter/nf_tables_api.c:4470) nf_tables
[ 37.129164][ T266] nf_tables_newset (net/netfilter/nf_tables_api.c:5233) nf_tables
[ 37.129436][ T266] ? __pfx_nf_tables_newset (net/netfilter/nf_tables_api.c:5075) nf_tables
[ 37.129733][ T266] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 37.129960][ T266] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 37.130172][ T266] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 37.130385][ T266] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 37.130607][ T266] nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:524) 
[ 37.130823][ T266] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 37.131011][ T266] ? __pfx_nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:373) 
[ 37.131197][ T266] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 37.131396][ T266] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 37.131576][ T266] ? validate_chain (kernel/locking/lockdep.c:3797 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) 
[ 37.131793][ T266] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 37.132009][ T266] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 37.132229][ T266] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 37.132440][ T266] ? __nla_validate_parse (./include/net/netlink.h:1267 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) 
[ 37.132628][ T266] nfnetlink_rcv (net/netfilter/nfnetlink.c:647 net/netfilter/nfnetlink.c:665) 
[ 37.132825][ T266] ? __pfx_nfnetlink_rcv (net/netfilter/nfnetlink.c:651) 
[ 37.133012][ T266] ? 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) 
[ 37.133209][ T266] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 37.133409][ T266] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 37.133614][ T266] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 37.133844][ T266] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 37.134037][ T266] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 37.134252][ T266] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 37.134462][ T266] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 37.134645][ T266] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 37.134918][ T266] ___sys_sendmsg (net/socket.c:2663) 
[ 37.135108][ T266] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 37.135297][ T266] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 37.135493][ T266] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 37.135678][ T266] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 37.135866][ T266] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 37.136056][ T266] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 37.136253][ T266] ? do_sock_getsockopt (net/socket.c:2388) 
[ 37.136450][ T266] ? do_sock_setsockopt (net/socket.c:2303) 
[ 37.136630][ T266] ? __pfx_do_sock_getsockopt (net/socket.c:2374) 
[ 37.136819][ T266] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 37.136980][ T266] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 37.137167][ T266] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 37.137353][ T266] ? __pfx___sys_getsockopt (net/socket.c:2415) 
[ 37.137580][ T266] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 37.137769][ T266] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.138004][  T266] RIP: 0033:0x7f9ed8f6c7b7
[ 37.138225][ T266] 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)
[   37.138894][  T266] RSP: 002b:00007fff465de128 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.139172][  T266] RAX: ffffffffffffffda RBX: 00007fff465ef320 RCX: 00007f9ed8f6c7b7
[   37.139453][  T266] RDX: 0000000000000000 RSI: 00007fff465ef1e0 RDI: 0000000000000005
[   37.139726][  T266] RBP: 00007fff465ef2d0 R08: 00007fff465de10c R09: 00007fff465de130
[   37.140018][  T266] R10: 00007f9ed8e25708 R11: 0000000000000246 R12: 00007fff465ef220
[   37.140314][  T266] R13: 0000000000000800 R14: 0000000000000005 R15: 00007fff465de140
| [   37.762696][  T271] 1 lock held by nft/271:
| [ 37.762889][ T271] #0: ffff888006abfac8 (&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
| [   37.763506][  T271]
| [   37.763506][  T271] stack backtrace:
[   37.764187][  T271] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   37.764745][  T271] Call Trace:
[   37.764947][  T271]  <TASK>
[ 37.765091][ T271] dump_stack_lvl (lib/dump_stack.c:123) 
[ 37.765360][ T271] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 37.765627][ T271] nft_set_flush.constprop.0 (net/netfilter/nf_tables_api.c:7498 net/netfilter/nf_tables_api.c:7522) nf_tables
[ 37.765995][ T271] ? __pfx_nft_set_flush.constprop.0 (net/netfilter/nf_tables_api.c:7512) nf_tables
[ 37.766417][ T271] ? __pfx_nft_setelem_flush (net/netfilter/nf_tables_api.c:7448) nf_tables
[ 37.766780][ T271] ? nla_strcmp (./include/net/netlink.h:1256 lib/nlattr.c:875) 
[ 37.766989][ T271] nf_tables_delsetelem (net/netfilter/nf_tables_api.c:7563) nf_tables
[ 37.767354][ T271] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 37.767615][ T271] ? __pfx_nf_tables_delsetelem (net/netfilter/nf_tables_api.c:7530) nf_tables
[ 37.767963][ T271] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 37.768234][ T271] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 37.768506][ T271] nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:524) 
[ 37.768812][ T271] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 37.769095][ T271] ? __pfx_nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:373) 
[ 37.769360][ T271] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 37.769628][ T271] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 37.769885][ T271] ? validate_chain (kernel/locking/lockdep.c:3797 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) 
[ 37.770182][ T271] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 37.770450][ T271] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 37.770723][ T271] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 37.770991][ T271] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 37.771245][ T271] ? __nla_validate_parse (./include/net/netlink.h:1267 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) 
[ 37.771513][ T271] nfnetlink_rcv (net/netfilter/nfnetlink.c:647 net/netfilter/nfnetlink.c:665) 
[ 37.771769][ T271] ? __pfx_nfnetlink_rcv (net/netfilter/nfnetlink.c:651) 
[ 37.772036][ T271] ? 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) 
[ 37.772305][ T271] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 37.772569][ T271] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 37.772863][ T271] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 37.773124][ T271] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 37.773383][ T271] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 37.773646][ T271] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 37.773904][ T271] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 37.774156][ T271] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 37.774490][ T271] ___sys_sendmsg (net/socket.c:2663) 
[ 37.774745][ T271] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 37.775002][ T271] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 37.775265][ T271] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 37.775518][ T271] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 37.775765][ T271] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 37.776022][ T271] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 37.776281][ T271] ? do_sock_getsockopt (net/socket.c:2388) 
[ 37.776533][ T271] ? do_sock_setsockopt (net/socket.c:2303) 
[ 37.776788][ T271] ? __pfx_do_sock_getsockopt (net/socket.c:2374) 
[ 37.777049][ T271] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 37.777253][ T271] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 37.777504][ T271] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 37.777765][ T271] ? __pfx___sys_getsockopt (net/socket.c:2415) 
[ 37.778055][ T271] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 37.778310][ T271] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.778620][  T271] RIP: 0033:0x7f61a3bee7b7
[ 37.778886][ T271] 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)
[   37.779780][  T271] RSP: 002b:00007fff179fd9e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.780185][  T271] RAX: ffffffffffffffda RBX: 00007fff17a0ebe0 RCX: 00007f61a3bee7b7
[   37.780564][  T271] RDX: 0000000000000000 RSI: 00007fff17a0eaa0 RDI: 0000000000000005
[   37.780958][  T271] RBP: 00007fff17a0eb90 R08: 00007fff179fd9cc R09: 00007fff179fd9f0
[   37.781349][  T271] R10: 00007f61a3aa7708 R11: 0000000000000246 R12: 00007fff17a0eae0


Finger prints:
lockdep_rcu_suspicious:nf_tables_delsetelem:nfnetlink_rcv_batch:nfnetlink_rcv:netlink_unicast
lockdep_rcu_suspicious:nf_tables_newset:nfnetlink_rcv_batch:nfnetlink_rcv:netlink_unicast