======================================
| [   31.182876][  T288] 1 lock held by ip/288:
| [ 31.183012][ T288] #0: ffffffffaa5bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   31.183455][  T288]
| [   31.183455][  T288] stack backtrace:
[   31.183950][  T288] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   31.184354][  T288] Call Trace:
[   31.184501][  T288]  <TASK>
[ 31.184602][ T288] dump_stack_lvl (lib/dump_stack.c:122) 
[ 31.184800][ T288] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 31.184987][ T288] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 31.185282][ T288] 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
[ 31.185550][ T288] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 31.185760][ T288] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.185982][ T288] br_add_if (net/bridge/br_if.c:692) bridge
[ 31.186209][ T288] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 31.186402][ T288] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 31.186636][ T288] do_setlink (net/core/rtnetlink.c:2907) 
[ 31.186826][ T288] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 31.187004][ T288] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 31.187184][ T288] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 31.187369][ T288] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 31.187552][ T288] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.187741][ T288] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 31.187933][ T288] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 31.188156][ T288] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 31.188348][ T288] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 31.188540][ T288] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 31.188718][ T288] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 31.188900][ T288] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.189040][ T288] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 31.189236][ T288] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 31.189424][ T288] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 31.189614][ T288] ? 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) 
[ 31.189802][ T288] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 31.190001][ T288] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.190244][ T288] ? __create_object (mm/kmemleak.c:751) 
[ 31.190435][ T288] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 31.190629][ T288] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 31.190779][ T288] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 31.190970][ T288] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.191145][ T288] ? 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) 
[ 31.191336][ T288] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.191479][ T288] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 31.191662][ T288] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 31.191841][ T288] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.192027][ T288] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 31.192227][ T288] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 31.192412][ T288] ? 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) 
[ 31.192594][ T288] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 31.192782][ T288] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 31.192965][ T288] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.193150][ T288] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 31.193343][ T288] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 31.193521][ T288] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 31.193706][ T288] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 31.193906][ T288] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 31.194093][ T288] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 31.194274][ T288] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 31.194501][ T288] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 31.194695][ T288] ___sys_sendmsg (net/socket.c:2653) 
[ 31.194882][ T288] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 31.195066][ T288] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.195251][ T288] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 31.195430][ T288] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 31.195663][ T288] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 31.195852][ T288] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 31.196040][ T288] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.196272][ T288] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 31.196467][ T288] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 31.196649][ T288] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 31.196844][ T288] ? __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) 
[ 31.197048][ T288] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.197234][ T288] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.197471][  T288] RIP: 0033:0x7fa0c502d7b7
[ 31.197660][ T288] 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)
[   31.198324][  T288] RSP: 002b:00007ffcca57bfb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.198586][  T288] RAX: ffffffffffffffda RBX: 00007ffcca57c6e0 RCX: 00007fa0c502d7b7
[   31.198838][  T288] RDX: 0000000000000000 RSI: 00007ffcca57c020 RDI: 0000000000000005
[   31.199088][  T288] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   31.199353][  T288] R10: 000000001d73e910 R11: 0000000000000246 R12: 0000000000000004
[   31.199602][  T288] R13: 0000000066bea1cc R14: 0000000000496600 R15: 0000000000000000
| [   31.201905][  T288] 1 lock held by ip/288:
| [ 31.202033][ T288] #0: ffffffffaa5bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   31.202563][  T288]
| [   31.202563][  T288] stack backtrace:
[   31.203040][  T288] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   31.203415][  T288] Call Trace:
[   31.203651][  T288]  <TASK>
[ 31.203739][ T288] dump_stack_lvl (lib/dump_stack.c:122) 
[ 31.203915][ T288] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 31.204089][ T288] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 31.204454][ T288] 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
[ 31.204699][ T288] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 31.204904][ T288] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.205114][ T288] br_add_if (net/bridge/br_if.c:692) bridge
[ 31.205322][ T288] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 31.205594][ T288] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 31.205808][ T288] do_setlink (net/core/rtnetlink.c:2907) 
[ 31.205984][ T288] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 31.206255][ T288] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 31.206426][ T288] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 31.206601][ T288] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 31.206772][ T288] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.207040][ T288] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 31.207216][ T288] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 31.207426][ T288] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 31.207613][ T288] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 31.207888][ T288] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 31.208060][ T288] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 31.208229][ T288] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.208367][ T288] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 31.208543][ T288] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 31.208826][ T288] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 31.209002][ T288] ? 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) 
[ 31.209171][ T288] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 31.209441][ T288] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.209661][ T288] ? __create_object (mm/kmemleak.c:751) 
[ 31.209831][ T288] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 31.210012][ T288] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 31.210178][ T288] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 31.210465][ T288] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.210633][ T288] ? 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) 
[ 31.210798][ T288] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.210929][ T288] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 31.211110][ T288] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 31.211380][ T288] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.211553][ T288] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 31.211737][ T288] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 31.211913][ T288] ? 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) 
[ 31.212084][ T288] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 31.212363][ T288] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 31.212529][ T288] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.212707][ T288] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 31.212880][ T288] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 31.213056][ T288] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 31.213330][ T288] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 31.213515][ T288] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 31.213686][ T288] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 31.213855][ T288] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 31.214171][ T288] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 31.214352][ T288] ___sys_sendmsg (net/socket.c:2653) 
[ 31.214524][ T288] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 31.214702][ T288] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.214877][ T288] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 31.215148][ T288] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 31.215362][ T288] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 31.215533][ T288] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 31.215705][ T288] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.216011][ T288] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 31.216192][ T288] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 31.216456][ T288] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 31.216620][ T288] ? __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) 
[ 31.216809][ T288] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.216981][ T288] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.217285][  T288] RIP: 0033:0x7fa0c502d7b7
[ 31.217462][ T288] 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)
[   31.218143][  T288] RSP: 002b:00007ffcca57bfb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.218407][  T288] RAX: ffffffffffffffda RBX: 00007ffcca57c6e0 RCX: 00007fa0c502d7b7
[   31.218657][  T288] RDX: 0000000000000000 RSI: 00007ffcca57c020 RDI: 0000000000000005
[   31.219002][  T288] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   31.219250][  T288] R10: 000000001d73e910 R11: 0000000000000246 R12: 0000000000000004
[   31.219596][  T288] R13: 0000000066bea1cc R14: 0000000000496600 R15: 0000000000000000
| [   31.222053][  T288] 1 lock held by ip/288:
| [ 31.222181][ T288] #0: ffffffffaa5bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   31.222509][  T288]
| [   31.222509][  T288] stack backtrace:
[   31.223090][  T288] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   31.223481][  T288] Call Trace:
[   31.223608][  T288]  <TASK>
[ 31.223812][ T288] dump_stack_lvl (lib/dump_stack.c:122) 
[ 31.223986][ T288] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 31.224156][ T288] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 31.224409][ T288] 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
[ 31.224763][ T288] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 31.224974][ T288] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.225184][ T288] br_add_if (net/bridge/br_if.c:692) bridge
[ 31.225385][ T288] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 31.225668][ T288] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 31.225884][ T288] do_setlink (net/core/rtnetlink.c:2907) 
[ 31.226064][ T288] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 31.226238][ T288] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 31.226522][ T288] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 31.226706][ T288] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 31.226879][ T288] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.227052][ T288] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 31.227334][ T288] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 31.227547][ T288] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 31.227732][ T288] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 31.227933][ T288] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 31.228203][ T288] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 31.228373][ T288] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.228629][ T288] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 31.228806][ T288] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 31.228988][ T288] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 31.229165][ T288] ? 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) 
[ 31.229346][ T288] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 31.229524][ T288] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.229738][ T288] ? __create_object (mm/kmemleak.c:751) 
[ 31.229910][ T288] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 31.230100][ T288] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 31.230229][ T288] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 31.230404][ T288] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.230675][ T288] ? 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) 
[ 31.230949][ T288] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.231101][ T288] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 31.231300][ T288] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 31.231481][ T288] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.231665][ T288] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 31.231866][ T288] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 31.232053][ T288] ? 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) 
[ 31.232236][ T288] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 31.232511][ T288] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 31.232685][ T288] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.232860][ T288] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 31.233030][ T288] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 31.233196][ T288] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 31.233371][ T288] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 31.233556][ T288] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 31.233742][ T288] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 31.233940][ T288] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 31.234246][ T288] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 31.234434][ T288] ___sys_sendmsg (net/socket.c:2653) 
[ 31.234612][ T288] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 31.234779][ T288] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.234948][ T288] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 31.235217][ T288] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 31.235432][ T288] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 31.235605][ T288] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 31.235901][ T288] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.236115][ T288] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 31.236295][ T288] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 31.236468][ T288] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 31.236752][ T288] ? __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) 
[ 31.236945][ T288] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.237114][ T288] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.237331][  T288] RIP: 0033:0x7fa0c502d7b7
[ 31.237617][ T288] 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)
[   31.238302][  T288] RSP: 002b:00007ffcca57bfb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.238559][  T288] RAX: ffffffffffffffda RBX: 00007ffcca57c6e0 RCX: 00007fa0c502d7b7
[   31.238806][  T288] RDX: 0000000000000000 RSI: 00007ffcca57c020 RDI: 0000000000000005
[   31.239344][  T288] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   31.239600][  T288] R10: 000000001d73e910 R11: 0000000000000246 R12: 0000000000000004


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