======================================
| [   33.577218][  T311] 1 lock held by ip/311:
| [ 33.577378][ T311] #0: ffffffff8e7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   33.577685][  T311]
| [   33.577685][  T311] stack backtrace:
[   33.578138][  T311] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   33.578520][  T311] Call Trace:
[   33.578652][  T311]  <TASK>
[ 33.578740][ T311] dump_stack_lvl (lib/dump_stack.c:122) 
[ 33.578912][ T311] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 33.579080][ T311] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 33.579365][ T311] 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
[ 33.579605][ T311] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 33.579803][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.580010][ T311] br_add_if (net/bridge/br_if.c:692) bridge
[ 33.580217][ T311] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 33.580380][ T311] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 33.580589][ T311] do_setlink (net/core/rtnetlink.c:2907) 
[ 33.580757][ T311] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 33.580926][ T311] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 33.581091][ T311] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 33.581268][ T311] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 33.581456][ T311] ? __kernel_text_address (kernel/extable.c:79) 
[ 33.581624][ T311] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 33.581789][ T311] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 33.581995][ T311] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 33.582175][ T311] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 33.582342][ T311] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.582522][ T311] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 33.582698][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.582829][ T311] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 33.583003][ T311] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 33.583175][ T311] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 33.583349][ T311] ? 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) 
[ 33.583515][ T311] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 33.583689][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.583899][ T311] ? __create_object (mm/kmemleak.c:751) 
[ 33.584072][ T311] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 33.584246][ T311] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 33.584376][ T311] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 33.584545][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.584711][ T311] ? 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) 
[ 33.584876][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.585008][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 33.585180][ T311] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 33.585370][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.585544][ T311] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 33.585726][ T311] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 33.585894][ T311] ? 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) 
[ 33.586063][ T311] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 33.586235][ T311] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 33.586403][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.586575][ T311] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 33.586748][ T311] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 33.586914][ T311] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 33.587087][ T311] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 33.587264][ T311] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 33.587435][ T311] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 33.587601][ T311] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 33.587808][ T311] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 33.587987][ T311] ___sys_sendmsg (net/socket.c:2653) 
[ 33.588158][ T311] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 33.588329][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.588514][ T311] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 33.588683][ T311] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 33.588893][ T311] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 33.589062][ T311] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 33.589236][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.589469][ T311] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 33.589646][ T311] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 33.589814][ T311] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 33.589979][ T311] ? __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) 
[ 33.590166][ T311] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.590339][ T311] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.590545][  T311] RIP: 0033:0x7f919dc5d7b7
[ 33.590720][ T311] 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)
[   33.591293][  T311] RSP: 002b:00007ffdffabfc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.591541][  T311] RAX: ffffffffffffffda RBX: 00007ffdffac03b0 RCX: 00007f919dc5d7b7
[   33.591788][  T311] RDX: 0000000000000000 RSI: 00007ffdffabfcf0 RDI: 0000000000000005
[   33.592041][  T311] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   33.592293][  T311] R10: 00000000229b4910 R11: 0000000000000246 R12: 0000000000000004
[   33.592542][  T311] R13: 0000000066bea62b R14: 0000000000496600 R15: 0000000000000000
| [   33.595516][  T311] 1 lock held by ip/311:
| [ 33.595645][ T311] #0: ffffffff8e7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   33.595949][  T311]
| [   33.595949][  T311] stack backtrace:
[   33.596399][  T311] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   33.596758][  T311] Call Trace:
[   33.596884][  T311]  <TASK>
[ 33.596976][ T311] dump_stack_lvl (lib/dump_stack.c:122) 
[ 33.597147][ T311] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 33.597336][ T311] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 33.597587][ T311] 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
[ 33.597831][ T311] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 33.598029][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.598237][ T311] br_add_if (net/bridge/br_if.c:692) bridge
[ 33.598454][ T311] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 33.598624][ T311] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 33.598836][ T311] do_setlink (net/core/rtnetlink.c:2907) 
[ 33.599004][ T311] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 33.599172][ T311] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 33.599359][ T311] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 33.599525][ T311] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 33.599693][ T311] ? __kernel_text_address (kernel/extable.c:79) 
[ 33.599862][ T311] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 33.600029][ T311] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 33.600236][ T311] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 33.600420][ T311] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 33.600589][ T311] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.600759][ T311] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 33.600925][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.601056][ T311] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 33.601235][ T311] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 33.601427][ T311] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 33.601609][ T311] ? 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) 
[ 33.601778][ T311] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 33.601951][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.602160][ T311] ? __create_object (mm/kmemleak.c:751) 
[ 33.602331][ T311] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 33.602504][ T311] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 33.602632][ T311] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 33.602805][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.602974][ T311] ? 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) 
[ 33.603140][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.603270][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 33.603438][ T311] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 33.603603][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.603777][ T311] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 33.603958][ T311] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 33.604126][ T311] ? 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) 
[ 33.604292][ T311] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 33.604463][ T311] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 33.604629][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.604798][ T311] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 33.604970][ T311] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 33.605134][ T311] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 33.605326][ T311] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 33.605501][ T311] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 33.605669][ T311] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 33.605834][ T311] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 33.606041][ T311] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 33.606216][ T311] ___sys_sendmsg (net/socket.c:2653) 
[ 33.606384][ T311] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 33.606552][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.606718][ T311] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 33.606884][ T311] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 33.607091][ T311] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 33.607260][ T311] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 33.607430][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.607634][ T311] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 33.607808][ T311] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 33.607976][ T311] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 33.608139][ T311] ? __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) 
[ 33.608330][ T311] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.608514][ T311] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.608724][  T311] RIP: 0033:0x7f919dc5d7b7
[ 33.609050][ T311] 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)
[   33.609743][  T311] RSP: 002b:00007ffdffabfc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.609999][  T311] RAX: ffffffffffffffda RBX: 00007ffdffac03b0 RCX: 00007f919dc5d7b7
[   33.610243][  T311] RDX: 0000000000000000 RSI: 00007ffdffabfcf0 RDI: 0000000000000005
[   33.610585][  T311] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   33.610834][  T311] R10: 00000000229b4910 R11: 0000000000000246 R12: 0000000000000004
[   33.611079][  T311] R13: 0000000066bea62b R14: 0000000000496600 R15: 0000000000000000
| [   33.613410][  T311] 1 lock held by ip/311:
| [ 33.613536][ T311] #0: ffffffff8e7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   33.613930][  T311]
| [   33.613930][  T311] stack backtrace:
[   33.614381][  T311] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   33.614838][  T311] Call Trace:
[   33.614964][  T311]  <TASK>
[ 33.615052][ T311] dump_stack_lvl (lib/dump_stack.c:122) 
[ 33.615223][ T311] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 33.615483][ T311] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 33.615728][ T311] 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
[ 33.615975][ T311] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 33.616169][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.616478][ T311] br_add_if (net/bridge/br_if.c:692) bridge
[ 33.616674][ T311] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 33.616837][ T311] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 33.617048][ T311] do_setlink (net/core/rtnetlink.c:2907) 
[ 33.617219][ T311] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 33.617408][ T311] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 33.617580][ T311] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 33.617743][ T311] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 33.618005][ T311] ? __kernel_text_address (kernel/extable.c:79) 
[ 33.618169][ T311] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 33.618337][ T311] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 33.618557][ T311] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 33.618829][ T311] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 33.618993][ T311] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.619156][ T311] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 33.619321][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.619550][ T311] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 33.619719][ T311] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 33.619890][ T311] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 33.620060][ T311] ? 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) 
[ 33.620272][ T311] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 33.620544][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.620751][ T311] ? __create_object (mm/kmemleak.c:751) 
[ 33.620950][ T311] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 33.621121][ T311] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 33.621248][ T311] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 33.621438][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.621602][ T311] ? 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) 
[ 33.621770][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.621993][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 33.622174][ T311] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 33.622338][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.622506][ T311] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 33.622686][ T311] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 33.622946][ T311] ? 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) 
[ 33.623113][ T311] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 33.623291][ T311] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 33.623457][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.623723][ T311] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 33.623895][ T311] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 33.624057][ T311] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 33.624224][ T311] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 33.624492][ T311] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 33.624661][ T311] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 33.624841][ T311] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 33.625043][ T311] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 33.625440][ T311] ___sys_sendmsg (net/socket.c:2653) 
[ 33.625608][ T311] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 33.625773][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.625944][ T311] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 33.626105][ T311] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 33.626308][ T311] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 33.626480][ T311] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 33.626649][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.626990][ T311] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 33.627164][ T311] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 33.627329][ T311] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 33.627490][ T311] ? __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) 
[ 33.627768][ T311] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.627934][ T311] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.628141][  T311] RIP: 0033:0x7f919dc5d7b7
[ 33.628324][ T311] 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)
[   33.628998][  T311] RSP: 002b:00007ffdffabfc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.629259][  T311] RAX: ffffffffffffffda RBX: 00007ffdffac03b0 RCX: 00007f919dc5d7b7
[   33.629630][  T311] RDX: 0000000000000000 RSI: 00007ffdffabfcf0 RDI: 0000000000000005
[   33.629878][  T311] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   33.630129][  T311] R10: 00000000229b4910 R11: 0000000000000246 R12: 0000000000000004


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