======================================
| [   32.754932][  T308] 1 lock held by ip/308:
| [ 32.755064][ T308] #0: ffffffffbbfbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   32.755393][  T308]
| [   32.755393][  T308] stack backtrace:
[   32.755883][  T308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   32.756267][  T308] Call Trace:
[   32.756402][  T308]  <TASK>
[ 32.756493][ T308] dump_stack_lvl (lib/dump_stack.c:122) 
[ 32.756676][ T308] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 32.756849][ T308] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 32.757141][ T308] 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
[ 32.757389][ T308] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 32.757595][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.757808][ T308] br_add_if (net/bridge/br_if.c:692) bridge
[ 32.758012][ T308] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 32.758192][ T308] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 32.758412][ T308] do_setlink (net/core/rtnetlink.c:2907) 
[ 32.758604][ T308] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 32.758802][ T308] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 32.758990][ T308] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 32.759157][ T308] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 32.759339][ T308] ? __kernel_text_address (kernel/extable.c:79) 
[ 32.759516][ T308] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 32.759686][ T308] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 32.759899][ T308] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 32.760082][ T308] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 32.760256][ T308] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 32.760427][ T308] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 32.760611][ T308] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.760745][ T308] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 32.760937][ T308] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 32.761113][ T308] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 32.761309][ T308] ? 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) 
[ 32.761484][ T308] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 32.761668][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.761893][ T308] ? __create_object (mm/kmemleak.c:751) 
[ 32.762070][ T308] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 32.762266][ T308] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 32.762397][ T308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 32.762572][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.762739][ T308] ? 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) 
[ 32.762910][ T308] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.763051][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 32.763237][ T308] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 32.763414][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.763592][ T308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 32.763776][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 32.763948][ T308] ? 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) 
[ 32.764119][ T308] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 32.764295][ T308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 32.764471][ T308] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.764654][ T308] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 32.764830][ T308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 32.764995][ T308] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 32.765179][ T308] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 32.765375][ T308] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 32.765551][ T308] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 32.765727][ T308] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 32.765951][ T308] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 32.766134][ T308] ___sys_sendmsg (net/socket.c:2653) 
[ 32.766311][ T308] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 32.766482][ T308] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.766670][ T308] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 32.766836][ T308] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 32.767060][ T308] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 32.767229][ T308] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 32.767407][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.767614][ T308] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 32.767793][ T308] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 32.767959][ T308] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 32.768127][ T308] ? __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) 
[ 32.768317][ T308] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 32.768501][ T308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   32.768718][  T308] RIP: 0033:0x7fefd17207b7
[ 32.768903][ T308] 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)
[   32.769509][  T308] RSP: 002b:00007ffe70c2bef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   32.769783][  T308] RAX: ffffffffffffffda RBX: 00007ffe70c2c620 RCX: 00007fefd17207b7
[   32.770039][  T308] RDX: 0000000000000000 RSI: 00007ffe70c2bf60 RDI: 0000000000000005
[   32.770293][  T308] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   32.770540][  T308] R10: 000000001e0c3910 R11: 0000000000000246 R12: 0000000000000004
[   32.770807][  T308] R13: 0000000066bea491 R14: 0000000000496600 R15: 0000000000000000
| [   32.773385][  T308] 1 lock held by ip/308:
| [ 32.773516][ T308] #0: ffffffffbbfbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   32.773847][  T308]
| [   32.773847][  T308] stack backtrace:
[   32.774310][  T308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   32.774687][  T308] Call Trace:
[   32.774818][  T308]  <TASK>
[ 32.774919][ T308] dump_stack_lvl (lib/dump_stack.c:122) 
[ 32.775101][ T308] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 32.775278][ T308] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 32.775520][ T308] 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
[ 32.775763][ T308] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 32.775967][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.776177][ T308] br_add_if (net/bridge/br_if.c:692) bridge
[ 32.776383][ T308] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 32.776555][ T308] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 32.776771][ T308] do_setlink (net/core/rtnetlink.c:2907) 
[ 32.776942][ T308] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 32.777113][ T308] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 32.777283][ T308] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 32.777468][ T308] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 32.777802][ T308] ? __kernel_text_address (kernel/extable.c:79) 
[ 32.777972][ T308] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 32.778140][ T308] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 32.778351][ T308] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 32.778630][ T308] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 32.778804][ T308] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 32.778972][ T308] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 32.779143][ T308] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.779387][ T308] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 32.779559][ T308] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 32.779734][ T308] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 32.779909][ T308] ? 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) 
[ 32.780179][ T308] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 32.780355][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.780567][ T308] ? __create_object (mm/kmemleak.c:751) 
[ 32.780744][ T308] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 32.781017][ T308] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 32.781155][ T308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 32.781324][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.781491][ T308] ? 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) 
[ 32.781656][ T308] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.781890][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 32.782064][ T308] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 32.782240][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.782417][ T308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 32.782715][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 32.782892][ T308] ? 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) 
[ 32.783056][ T308] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 32.783233][ T308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 32.783794][ T308] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.784076][ T308] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 32.784252][ T308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 32.784424][ T308] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 32.784596][ T308] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 32.784874][ T308] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 32.785042][ T308] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 32.785212][ T308] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 32.785418][ T308] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 32.785599][ T308] ___sys_sendmsg (net/socket.c:2653) 
[ 32.785879][ T308] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 32.786045][ T308] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.786218][ T308] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 32.786396][ T308] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 32.786601][ T308] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 32.786768][ T308] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 32.786938][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.787249][ T308] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 32.787427][ T308] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 32.787596][ T308] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 32.787766][ T308] ? __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) 
[ 32.788045][ T308] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 32.788225][ T308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   32.788429][  T308] RIP: 0033:0x7fefd17207b7
[ 32.788612][ T308] 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)
[   32.789312][  T308] RSP: 002b:00007ffe70c2bef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   32.789661][  T308] RAX: ffffffffffffffda RBX: 00007ffe70c2c620 RCX: 00007fefd17207b7
[   32.789925][  T308] RDX: 0000000000000000 RSI: 00007ffe70c2bf60 RDI: 0000000000000005
[   32.790170][  T308] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   32.790525][  T308] R10: 000000001e0c3910 R11: 0000000000000246 R12: 0000000000000004
[   32.790878][  T308] R13: 0000000066bea491 R14: 0000000000496600 R15: 0000000000000000
| [   32.793197][  T308] 1 lock held by ip/308:
| [ 32.793335][ T308] #0: ffffffffbbfbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   32.793645][  T308]
| [   32.793645][  T308] stack backtrace:
[   32.794217][  T308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   32.794589][  T308] Call Trace:
[   32.794821][  T308]  <TASK>
[ 32.794912][ T308] dump_stack_lvl (lib/dump_stack.c:122) 
[ 32.795090][ T308] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 32.795251][ T308] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 32.795604][ T308] 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
[ 32.795858][ T308] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 32.796055][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.796279][ T308] br_add_if (net/bridge/br_if.c:692) bridge
[ 32.796583][ T308] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 32.796751][ T308] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 32.796975][ T308] do_setlink (net/core/rtnetlink.c:2907) 
[ 32.797143][ T308] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 32.797429][ T308] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 32.797603][ T308] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 32.797774][ T308] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 32.797949][ T308] ? __kernel_text_address (kernel/extable.c:79) 
[ 32.798125][ T308] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 32.798294][ T308] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 32.798499][ T308] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 32.798697][ T308] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 32.798973][ T308] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 32.799160][ T308] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 32.799542][ T308] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.799670][ T308] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 32.799845][ T308] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 32.800014][ T308] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 32.800205][ T308] ? 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) 
[ 32.800381][ T308] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 32.800571][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.800782][ T308] ? __create_object (mm/kmemleak.c:751) 
[ 32.800952][ T308] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 32.801135][ T308] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 32.801268][ T308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 32.801538][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.801708][ T308] ? 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) 
[ 32.801876][ T308] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.802015][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 32.802188][ T308] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 32.802462][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.802640][ T308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 32.802821][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 32.802998][ T308] ? 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) 
[ 32.803174][ T308] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 32.803350][ T308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 32.803524][ T308] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.803697][ T308] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 32.803985][ T308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 32.804153][ T308] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 32.804320][ T308] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 32.804493][ T308] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 32.804673][ T308] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 32.804941][ T308] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 32.805144][ T308] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 32.805323][ T308] ___sys_sendmsg (net/socket.c:2653) 
[ 32.805498][ T308] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 32.805765][ T308] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.805945][ T308] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 32.806108][ T308] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 32.806329][ T308] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 32.806600][ T308] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 32.806771][ T308] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.806984][ T308] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 32.807158][ T308] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 32.807427][ T308] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 32.807590][ T308] ? __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) 
[ 32.807780][ T308] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 32.807949][ T308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   32.808262][  T308] RIP: 0033:0x7fefd17207b7
[ 32.808434][ T308] 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)
[   32.809138][  T308] RSP: 002b:00007ffe70c2bef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   32.809402][  T308] RAX: ffffffffffffffda RBX: 00007ffe70c2c620 RCX: 00007fefd17207b7
[   32.809664][  T308] RDX: 0000000000000000 RSI: 00007ffe70c2bf60 RDI: 0000000000000005
[   32.810035][  T308] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   32.810293][  T308] R10: 000000001e0c3910 R11: 0000000000000246 R12: 0000000000000004


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