======================================
| [   29.204620][  T274] 1 lock held by ip/274:
| [ 29.204768][ T274] #0: ffffffffb69bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   29.205109][  T274]
| [   29.205109][  T274] stack backtrace:
[   29.205604][  T274] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   29.206007][  T274] Call Trace:
[   29.206152][  T274]  <TASK>
[ 29.206241][ T274] dump_stack_lvl (lib/dump_stack.c:122) 
[ 29.206443][ T274] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 29.206618][ T274] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 29.206908][ T274] br_get_link_af_size_filtered (net/bridge/br_private.h:930 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge
[ 29.207213][ T274] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 29.207487][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 29.207722][ T274] br_add_if (net/bridge/br_if.c:692) bridge
[ 29.207937][ T274] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 29.208108][ T274] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 29.208344][ T274] do_setlink (net/core/rtnetlink.c:2907) 
[ 29.208522][ T274] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 29.208713][ T274] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 29.208922][ T274] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 29.209097][ T274] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 29.209322][ T274] ? __kernel_text_address (kernel/extable.c:79) 
[ 29.209494][ T274] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 29.209700][ T274] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 29.209950][ T274] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 29.210146][ T274] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 29.210339][ T274] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 29.210506][ T274] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 29.210676][ T274] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 29.210826][ T274] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 29.211086][ T274] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 29.211361][ T274] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 29.211541][ T274] ? 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:227) 
[ 29.211723][ T274] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 29.211900][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 29.212112][ T274] ? __create_object (mm/kmemleak.c:751) 
[ 29.212300][ T274] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 29.212475][ T274] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 29.212604][ T274] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 29.212776][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 29.212975][ T274] ? 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:227) 
[ 29.213169][ T274] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 29.213304][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 29.213482][ T274] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 29.213653][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 29.213821][ T274] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 29.214030][ T274] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 29.214220][ T274] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 29.214392][ T274] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 29.214590][ T274] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 29.214763][ T274] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 29.214950][ T274] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 29.215143][ T274] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 29.215318][ T274] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 29.215494][ T274] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 29.215678][ T274] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 29.215856][ T274] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 29.216029][ T274] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 29.216286][ T274] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 29.216472][ T274] ___sys_sendmsg (net/socket.c:2653) 
[ 29.216651][ T274] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 29.216828][ T274] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 29.217007][ T274] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 29.217194][ T274] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 29.217412][ T274] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 29.217600][ T274] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 29.217781][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 29.218001][ T274] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 29.218199][ T274] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 29.218367][ T274] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 29.218549][ T274] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) 
[ 29.218743][ T274] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 29.218934][ T274] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   29.219164][  T274] RIP: 0033:0x7fdd30c977b7
[ 29.219349][ T274] 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)
[   29.219954][  T274] RSP: 002b:00007ffe503b7ad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   29.220238][  T274] RAX: ffffffffffffffda RBX: 00007ffe503b8200 RCX: 00007fdd30c977b7
[   29.220513][  T274] RDX: 0000000000000000 RSI: 00007ffe503b7b40 RDI: 0000000000000005
[   29.220783][  T274] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   29.221041][  T274] R10: 0000000003ec7910 R11: 0000000000000246 R12: 0000000000000004
[   29.221351][  T274] R13: 0000000066bea7c7 R14: 0000000000496600 R15: 0000000000000000
| [   29.223455][  T274] 1 lock held by ip/274:
| [ 29.223589][ T274] #0: ffffffffb69bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   29.223897][  T274]
| [   29.223897][  T274] stack backtrace:
[   29.224397][  T274] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   29.224768][  T274] Call Trace:
[   29.224901][  T274]  <TASK>
[ 29.224995][ T274] dump_stack_lvl (lib/dump_stack.c:122) 
[ 29.225185][ T274] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 29.225351][ T274] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 29.225613][ T274] br_get_link_af_size_filtered (net/bridge/br_private.h:453 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge
[ 29.225867][ T274] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 29.226064][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 29.226298][ T274] br_add_if (net/bridge/br_if.c:692) bridge
[ 29.226514][ T274] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 29.226699][ T274] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 29.226926][ T274] do_setlink (net/core/rtnetlink.c:2907) 
[ 29.227108][ T274] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 29.227314][ T274] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 29.227485][ T274] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 29.227675][ T274] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 29.227851][ T274] ? __kernel_text_address (kernel/extable.c:79) 
[ 29.228031][ T274] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 29.228221][ T274] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 29.228649][ T274] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 29.228835][ T274] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 29.229020][ T274] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 29.229201][ T274] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 29.229375][ T274] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 29.229511][ T274] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 29.229687][ T274] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 29.229865][ T274] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 29.230157][ T274] ? 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:227) 
[ 29.230341][ T274] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 29.230526][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 29.230743][ T274] ? __create_object (mm/kmemleak.c:751) 
[ 29.231014][ T274] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 29.231205][ T274] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 29.231334][ T274] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 29.231516][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 29.231683][ T274] ? 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:227) 
[ 29.231956][ T274] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 29.232086][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 29.232283][ T274] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 29.232453][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 29.232641][ T274] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 29.232826][ T274] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 29.232999][ T274] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 29.233180][ T274] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 29.233459][ T274] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 29.233637][ T274] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 29.233814][ T274] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 29.234006][ T274] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 29.234184][ T274] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 29.234458][ T274] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 29.234640][ T274] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 29.234811][ T274] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 29.234982][ T274] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 29.235218][ T274] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 29.235409][ T274] ___sys_sendmsg (net/socket.c:2653) 
[ 29.235602][ T274] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 29.235779][ T274] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 29.235974][ T274] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 29.236173][ T274] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 29.236407][ T274] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 29.236591][ T274] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 29.236887][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 29.237118][ T274] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 29.237370][ T274] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 29.237628][ T274] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 29.238075][ T274] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) 
[ 29.238420][ T274] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 29.238710][ T274] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   29.239055][  T274] RIP: 0033:0x7fdd30c977b7
[ 29.239512][ T274] 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)
[   29.240171][  T274] RSP: 002b:00007ffe503b7ad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   29.240522][  T274] RAX: ffffffffffffffda RBX: 00007ffe503b8200 RCX: 00007fdd30c977b7
[   29.240899][  T274] RDX: 0000000000000000 RSI: 00007ffe503b7b40 RDI: 0000000000000005
[   29.241656][  T274] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   29.242080][  T274] R10: 0000000003ec7910 R11: 0000000000000246 R12: 0000000000000004
[   29.242483][  T274] R13: 0000000066bea7c7 R14: 0000000000496600 R15: 0000000000000000
| [   29.245595][  T274] 1 lock held by ip/274:
| [ 29.245724][ T274] #0: ffffffffb69bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   29.246138][  T274]
| [   29.246138][  T274] stack backtrace:
[   29.246701][  T274] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   29.247074][  T274] Call Trace:
[   29.247215][  T274]  <TASK>
[ 29.247413][ T274] dump_stack_lvl (lib/dump_stack.c:122) 
[ 29.247589][ T274] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 29.247753][ T274] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 29.247994][ T274] br_get_link_af_size_filtered (net/bridge/br_private.h:1611 net/bridge/br_private.h:1608 net/bridge/br_netlink.c:107) bridge
[ 29.248243][ T274] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 29.248439][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 29.248753][ T274] br_add_if (net/bridge/br_if.c:692) bridge
[ 29.248956][ T274] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 29.249127][ T274] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 29.249342][ T274] do_setlink (net/core/rtnetlink.c:2907) 
[ 29.249609][ T274] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 29.249779][ T274] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 29.249946][ T274] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 29.250116][ T274] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 29.250395][ T274] ? __kernel_text_address (kernel/extable.c:79) 
[ 29.250560][ T274] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 29.250725][ T274] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 29.250937][ T274] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 29.251123][ T274] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 29.251291][ T274] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 29.251560][ T274] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 29.251729][ T274] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 29.251969][ T274] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 29.252246][ T274] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 29.252420][ T274] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 29.252692][ T274] ? 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:227) 
[ 29.252860][ T274] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 29.253031][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 29.253347][ T274] ? __create_object (mm/kmemleak.c:751) 
[ 29.253524][ T274] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 29.253803][ T274] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 29.254065][ T274] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 29.254338][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 29.254503][ T274] ? 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:227) 
[ 29.254773][ T274] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 29.254906][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 29.255177][ T274] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 29.255348][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 29.255619][ T274] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 29.255804][ T274] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 29.256072][ T274] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 29.256245][ T274] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 29.256522][ T274] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 29.256692][ T274] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 29.256971][ T274] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 29.257144][ T274] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 29.257309][ T274] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 29.257486][ T274] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 29.257760][ T274] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 29.257938][ T274] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 29.258207][ T274] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 29.258413][ T274] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 29.258692][ T274] ___sys_sendmsg (net/socket.c:2653) 
[ 29.258862][ T274] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 29.259031][ T274] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 29.259214][ T274] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 29.259482][ T274] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 29.259689][ T274] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 29.259864][ T274] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 29.260042][ T274] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 29.260361][ T274] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 29.260538][ T274] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 29.260708][ T274] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 29.260880][ T274] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) 
[ 29.261070][ T274] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 29.261346][ T274] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   29.261557][  T274] RIP: 0033:0x7fdd30c977b7
[ 29.261732][ T274] 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)
[   29.262309][  T274] RSP: 002b:00007ffe503b7ad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   29.262565][  T274] RAX: ffffffffffffffda RBX: 00007ffe503b8200 RCX: 00007fdd30c977b7
[   29.262816][  T274] RDX: 0000000000000000 RSI: 00007ffe503b7b40 RDI: 0000000000000005
[   29.263066][  T274] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   29.263318][  T274] R10: 0000000003ec7910 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink