======================================
| [   32.977681][  T311] 1 lock held by ip/311:
| [ 32.977814][ T311] #0: ffffffffb83bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   32.978118][  T311]
| [   32.978118][  T311] stack backtrace:
[   32.978572][  T311] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   32.978937][  T311] Call Trace:
[   32.979071][  T311]  <TASK>
[ 32.979158][ T311] dump_stack_lvl (lib/dump_stack.c:122) 
[ 32.979329][ T311] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 32.979495][ T311] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 32.979752][ 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
[ 32.979998][ T311] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 32.980196][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.980405][ T311] br_add_if (net/bridge/br_if.c:692) bridge
[ 32.980607][ T311] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 32.980775][ T311] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 32.980988][ T311] do_setlink (net/core/rtnetlink.c:2907) 
[ 32.981156][ T311] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 32.981324][ T311] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 32.981489][ T311] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 32.981654][ T311] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 32.981833][ T311] ? __kernel_text_address (kernel/extable.c:79) 
[ 32.982000][ T311] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 32.982164][ T311] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 32.982367][ T311] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 32.982545][ T311] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 32.982718][ T311] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 32.982885][ T311] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 32.983053][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.983187][ T311] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 32.983365][ T311] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 32.983538][ T311] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 32.983715][ 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) 
[ 32.983883][ T311] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 32.984057][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.984279][ T311] ? __create_object (mm/kmemleak.c:751) 
[ 32.984448][ T311] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 32.984620][ T311] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 32.984751][ T311] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 32.984920][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.985085][ 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) 
[ 32.985251][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.985382][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 32.985556][ T311] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 32.985723][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.985890][ T311] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 32.986080][ T311] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 32.986251][ 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) 
[ 32.986421][ T311] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 32.986590][ T311] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 32.986755][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.986924][ T311] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 32.987100][ T311] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 32.987268][ T311] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 32.987445][ T311] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 32.987624][ T311] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 32.987798][ T311] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 32.987965][ T311] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 32.988169][ T311] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 32.988346][ T311] ___sys_sendmsg (net/socket.c:2653) 
[ 32.988515][ T311] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 32.988682][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.988860][ T311] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 32.989024][ T311] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 32.989232][ T311] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 32.989400][ T311] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 32.989575][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.989786][ T311] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 32.989963][ T311] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 32.990132][ T311] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 32.990300][ 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) 
[ 32.990491][ T311] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 32.990660][ T311] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   32.990866][  T311] RIP: 0033:0x7f5eeeeb07b7
[ 32.991045][ 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)
[   32.991626][  T311] RSP: 002b:00007ffd0c50aa18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   32.991881][  T311] RAX: ffffffffffffffda RBX: 00007ffd0c50b140 RCX: 00007f5eeeeb07b7
[   32.992129][  T311] RDX: 0000000000000000 RSI: 00007ffd0c50aa80 RDI: 0000000000000005
[   32.992376][  T311] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   32.992623][  T311] R10: 00000000075bb910 R11: 0000000000000246 R12: 0000000000000004
[   32.992873][  T311] R13: 0000000066bea086 R14: 0000000000496600 R15: 0000000000000000
| [   32.994894][  T311] 1 lock held by ip/311:
| [ 32.995021][ T311] #0: ffffffffb83bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   32.995329][  T311]
| [   32.995329][  T311] stack backtrace:
[   32.995788][  T311] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   32.996149][  T311] Call Trace:
[   32.996275][  T311]  <TASK>
[ 32.996364][ T311] dump_stack_lvl (lib/dump_stack.c:122) 
[ 32.996541][ T311] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 32.996708][ T311] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 32.996955][ 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
[ 32.997199][ T311] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 32.997399][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.997610][ T311] br_add_if (net/bridge/br_if.c:692) bridge
[ 32.997814][ T311] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 32.997982][ T311] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 32.998198][ T311] do_setlink (net/core/rtnetlink.c:2907) 
[ 32.998367][ T311] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 32.998535][ T311] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 32.998705][ T311] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 32.998871][ T311] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 32.999038][ T311] ? __kernel_text_address (kernel/extable.c:79) 
[ 32.999204][ T311] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 32.999373][ T311] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 32.999580][ T311] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 32.999761][ T311] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 32.999927][ T311] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.000094][ T311] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 33.000262][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.000393][ T311] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 33.000568][ T311] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 33.000740][ T311] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 33.000926][ 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) 
[ 33.001092][ T311] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 33.001264][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.001473][ T311] ? __create_object (mm/kmemleak.c:751) 
[ 33.001645][ T311] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 33.001816][ T311] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 33.001943][ T311] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 33.002112][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.002282][ 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) 
[ 33.002446][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.002577][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 33.002745][ T311] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 33.002909][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.003079][ T311] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 33.003262][ T311] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 33.003431][ 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) 
[ 33.003604][ T311] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 33.003776][ T311] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 33.003946][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.004125][ T311] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 33.004297][ T311] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 33.004468][ T311] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 33.004641][ T311] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 33.004816][ T311] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 33.004985][ T311] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 33.005154][ T311] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 33.005360][ T311] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 33.005538][ T311] ___sys_sendmsg (net/socket.c:2653) 
[ 33.005736][ T311] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 33.005905][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.006077][ T311] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 33.006240][ T311] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 33.006451][ T311] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 33.006620][ T311] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 33.006794][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.007004][ T311] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 33.007178][ T311] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 33.007347][ T311] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 33.007515][ 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) 
[ 33.007703][ T311] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.007874][ T311] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.008078][  T311] RIP: 0033:0x7f5eeeeb07b7
[ 33.008252][ 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)
[   33.008828][  T311] RSP: 002b:00007ffd0c50aa18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.009214][  T311] RAX: ffffffffffffffda RBX: 00007ffd0c50b140 RCX: 00007f5eeeeb07b7
[   33.009464][  T311] RDX: 0000000000000000 RSI: 00007ffd0c50aa80 RDI: 0000000000000005
[   33.009808][  T311] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   33.010060][  T311] R10: 00000000075bb910 R11: 0000000000000246 R12: 0000000000000004
[   33.010312][  T311] R13: 0000000066bea086 R14: 0000000000496600 R15: 0000000000000000
| [   33.012643][  T311] 1 lock held by ip/311:
| [ 33.012770][ T311] #0: ffffffffb83bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   33.013173][  T311]
| [   33.013173][  T311] stack backtrace:
[   33.013623][  T311] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   33.014099][  T311] Call Trace:
[   33.014239][  T311]  <TASK>
[ 33.014327][ T311] dump_stack_lvl (lib/dump_stack.c:122) 
[ 33.014500][ T311] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 33.014764][ T311] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 33.015013][ 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
[ 33.015271][ T311] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 33.015468][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.015773][ T311] br_add_if (net/bridge/br_if.c:692) bridge
[ 33.015973][ T311] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 33.016139][ T311] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 33.016354][ T311] do_setlink (net/core/rtnetlink.c:2907) 
[ 33.016619][ T311] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 33.016790][ T311] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 33.016955][ T311] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 33.017120][ T311] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 33.017289][ T311] ? __kernel_text_address (kernel/extable.c:79) 
[ 33.017487][ T311] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 33.017651][ T311] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 33.017862][ T311] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 33.018139][ T311] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 33.018313][ T311] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.018486][ T311] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 33.018657][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.018788][ T311] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 33.019053][ T311] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 33.019233][ T311] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 33.019411][ 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) 
[ 33.019581][ T311] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 33.019853][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.020062][ T311] ? __create_object (mm/kmemleak.c:751) 
[ 33.020231][ T311] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 33.020411][ T311] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 33.020641][ T311] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 33.020816][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.020980][ 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) 
[ 33.021146][ T311] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.021278][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 33.021453][ T311] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 33.021619][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.021791][ T311] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 33.021973][ T311] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 33.022240][ 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) 
[ 33.022415][ T311] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 33.022587][ T311] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 33.022767][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.023040][ T311] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 33.023213][ T311] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 33.023387][ T311] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 33.023558][ T311] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 33.023834][ T311] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 33.024010][ T311] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 33.024192][ T311] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 33.024400][ T311] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 33.024770][ T311] ___sys_sendmsg (net/socket.c:2653) 
[ 33.024941][ T311] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 33.025108][ T311] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.025279][ T311] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 33.025446][ T311] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 33.025754][ T311] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 33.025927][ T311] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 33.026105][ T311] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.026319][ T311] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 33.026496][ T311] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 33.026670][ T311] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 33.026834][ 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) 
[ 33.027025][ T311] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.027288][ T311] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.027496][  T311] RIP: 0033:0x7f5eeeeb07b7
[ 33.027877][ 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)
[   33.028559][  T311] RSP: 002b:00007ffd0c50aa18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.028810][  T311] RAX: ffffffffffffffda RBX: 00007ffd0c50b140 RCX: 00007f5eeeeb07b7
[   33.029162][  T311] RDX: 0000000000000000 RSI: 00007ffd0c50aa80 RDI: 0000000000000005
[   33.029415][  T311] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   33.029666][  T311] R10: 00000000075bb910 R11: 0000000000000246 R12: 0000000000000004


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