======================================
| [   33.511886][  T303] 1 lock held by ip/303:
| [ 33.512104][ T303] #0: ffffffffa5fbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   33.512887][  T303]
| [   33.512887][  T303] stack backtrace:
[   33.513645][  T303] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   33.514248][  T303] Call Trace:
[   33.514480][  T303]  <TASK>
[ 33.514626][ T303] dump_stack_lvl (lib/dump_stack.c:122) 
[ 33.514918][ T303] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 33.515192][ T303] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 33.515650][ T303] 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
[ 33.516063][ T303] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 33.516388][ T303] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.516752][ T303] br_add_if (net/bridge/br_if.c:692) bridge
[ 33.517088][ T303] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 33.517356][ T303] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 33.517724][ T303] do_setlink (net/core/rtnetlink.c:2907) 
[ 33.517991][ T303] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 33.518262][ T303] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 33.518541][ T303] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 33.518819][ T303] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 33.519098][ T303] ? __kernel_text_address (kernel/extable.c:79) 
[ 33.519357][ T303] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 33.519639][ T303] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 33.519986][ T303] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 33.520291][ T303] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 33.520574][ T303] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.520851][ T303] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 33.521122][ T303] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.521339][ T303] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 33.521614][ T303] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 33.521899][ T303] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 33.522172][ T303] ? 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) 
[ 33.522445][ T303] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 33.522733][ T303] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.523073][ T303] ? __create_object (mm/kmemleak.c:751) 
[ 33.523351][ T303] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 33.523643][ T303] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 33.523856][ T303] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 33.524124][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.524372][ T303] ? 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) 
[ 33.524641][ T303] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.524860][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 33.525131][ T303] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 33.525398][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.525677][ T303] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 33.525959][ T303] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 33.526219][ T303] ? 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) 
[ 33.526483][ T303] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 33.526746][ T303] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 33.527008][ T303] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.527267][ T303] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 33.527562][ T303] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 33.527839][ T303] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 33.528125][ T303] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 33.528423][ T303] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 33.528683][ T303] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 33.528938][ T303] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 33.529249][ T303] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 33.529540][ T303] ___sys_sendmsg (net/socket.c:2653) 
[ 33.529805][ T303] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 33.530064][ T303] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.530321][ T303] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 33.530579][ T303] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 33.530888][ T303] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 33.531149][ T303] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 33.531426][ T303] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.531752][ T303] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 33.532022][ T303] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 33.532296][ T303] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 33.532572][ T303] ? __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) 
[ 33.532894][ T303] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.533188][ T303] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.533537][  T303] RIP: 0033:0x7ff35ce1d7b7
[ 33.533833][ T303] 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)
[   33.534457][  T303] RSP: 002b:00007ffdb5caf4e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.534714][  T303] RAX: ffffffffffffffda RBX: 00007ffdb5cafc10 RCX: 00007ff35ce1d7b7
[   33.534964][  T303] RDX: 0000000000000000 RSI: 00007ffdb5caf550 RDI: 0000000000000005
[   33.535219][  T303] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   33.535480][  T303] R10: 00000000359e9910 R11: 0000000000000246 R12: 0000000000000004
[   33.535738][  T303] R13: 0000000066bea16a R14: 0000000000496600 R15: 0000000000000000
| [   33.537914][  T303] 1 lock held by ip/303:
| [ 33.538041][ T303] #0: ffffffffa5fbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   33.538362][  T303]
| [   33.538362][  T303] stack backtrace:
[   33.538835][  T303] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   33.539198][  T303] Call Trace:
[   33.539343][  T303]  <TASK>
[ 33.539434][ T303] dump_stack_lvl (lib/dump_stack.c:122) 
[ 33.539611][ T303] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 33.539779][ T303] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 33.540026][ T303] 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
[ 33.540285][ T303] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 33.540486][ T303] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.540696][ T303] br_add_if (net/bridge/br_if.c:692) bridge
[ 33.540895][ T303] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 33.541062][ T303] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 33.541540][ T303] do_setlink (net/core/rtnetlink.c:2907) 
[ 33.541709][ T303] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 33.541881][ T303] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 33.542047][ T303] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 33.542328][ T303] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 33.542495][ T303] ? __kernel_text_address (kernel/extable.c:79) 
[ 33.542659][ T303] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 33.542828][ T303] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 33.543128][ T303] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 33.543328][ T303] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 33.543492][ T303] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.543658][ T303] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 33.543825][ T303] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.544049][ T303] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 33.544217][ T303] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 33.544402][ T303] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 33.544573][ T303] ? 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) 
[ 33.544838][ T303] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 33.545008][ T303] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.545217][ T303] ? __create_object (mm/kmemleak.c:751) 
[ 33.545398][ T303] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 33.545703][ T303] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 33.545833][ T303] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 33.546000][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.546178][ T303] ? 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) 
[ 33.546358][ T303] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.546594][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 33.546766][ T303] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 33.546940][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.547109][ T303] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 33.547313][ T303] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 33.547477][ T303] ? 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) 
[ 33.547645][ T303] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 33.547832][ T303] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 33.548102][ T303] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.548288][ T303] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 33.548462][ T303] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 33.548627][ T303] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 33.548800][ T303] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 33.549077][ T303] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 33.549257][ T303] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 33.549432][ T303] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 33.549643][ T303] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 33.549923][ T303] ___sys_sendmsg (net/socket.c:2653) 
[ 33.550093][ T303] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 33.550275][ T303] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.550449][ T303] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 33.550713][ T303] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 33.550917][ T303] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 33.551091][ T303] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 33.551279][ T303] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.551589][ T303] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 33.551765][ T303] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 33.551929][ T303] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 33.552098][ T303] ? __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) 
[ 33.552502][ T303] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.552724][ T303] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.552932][  T303] RIP: 0033:0x7ff35ce1d7b7
[ 33.553215][ T303] 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)
[   33.553916][  T303] RSP: 002b:00007ffdb5caf4e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.554173][  T303] RAX: ffffffffffffffda RBX: 00007ffdb5cafc10 RCX: 00007ff35ce1d7b7
[   33.554435][  T303] RDX: 0000000000000000 RSI: 00007ffdb5caf550 RDI: 0000000000000005
[   33.554687][  T303] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   33.555138][  T303] R10: 00000000359e9910 R11: 0000000000000246 R12: 0000000000000004
[   33.555403][  T303] R13: 0000000066bea16a R14: 0000000000496600 R15: 0000000000000000
| [   33.557761][  T303] 1 lock held by ip/303:
| [ 33.557887][ T303] #0: ffffffffa5fbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   33.558194][  T303]
| [   33.558194][  T303] stack backtrace:
[   33.558766][  T303] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   33.559231][  T303] Call Trace:
[   33.559377][  T303]  <TASK>
[ 33.559468][ T303] dump_stack_lvl (lib/dump_stack.c:122) 
[ 33.559639][ T303] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 33.559809][ T303] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 33.560150][ T303] 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
[ 33.560440][ T303] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 33.560638][ T303] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.560847][ T303] br_add_if (net/bridge/br_if.c:692) bridge
[ 33.561142][ T303] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 33.561314][ T303] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 33.561528][ T303] do_setlink (net/core/rtnetlink.c:2907) 
[ 33.561695][ T303] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 33.561956][ T303] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 33.562122][ T303] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 33.562287][ T303] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 33.562456][ T303] ? __kernel_text_address (kernel/extable.c:79) 
[ 33.562717][ T303] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 33.562890][ T303] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 33.563100][ T303] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 33.563282][ T303] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 33.563546][ T303] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.563714][ T303] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 33.563881][ T303] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.564014][ T303] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 33.564191][ T303] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 33.564667][ T303] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 33.564840][ T303] ? 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) 
[ 33.565006][ T303] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 33.565183][ T303] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.565391][ T303] ? __create_object (mm/kmemleak.c:751) 
[ 33.565574][ T303] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 33.565763][ T303] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 33.565895][ T303] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 33.566075][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.566341][ T303] ? 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) 
[ 33.566512][ T303] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.566645][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 33.566813][ T303] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 33.566978][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.567247][ T303] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 33.567433][ T303] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 33.567608][ T303] ? 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) 
[ 33.567875][ T303] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 33.568048][ T303] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 33.568214][ T303] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.568388][ T303] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 33.568662][ T303] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 33.568829][ T303] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 33.569007][ T303] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 33.569184][ T303] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 33.569357][ T303] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 33.569525][ T303] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 33.569734][ T303] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 33.570019][ T303] ___sys_sendmsg (net/socket.c:2653) 
[ 33.570193][ T303] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 33.570366][ T303] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.570641][ T303] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 33.570805][ T303] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 33.571023][ T303] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 33.571196][ T303] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 33.571472][ T303] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.571680][ T303] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 33.571857][ T303] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 33.572028][ T303] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 33.572192][ T303] ? __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) 
[ 33.572479][ T303] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.572653][ T303] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.572959][  T303] RIP: 0033:0x7ff35ce1d7b7
[ 33.573132][ T303] 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)
[   33.573810][  T303] RSP: 002b:00007ffdb5caf4e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.574053][  T303] RAX: ffffffffffffffda RBX: 00007ffdb5cafc10 RCX: 00007ff35ce1d7b7
[   33.574298][  T303] RDX: 0000000000000000 RSI: 00007ffdb5caf550 RDI: 0000000000000005
[   33.574541][  T303] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   33.574792][  T303] R10: 00000000359e9910 R11: 0000000000000246 R12: 0000000000000004


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