======================================
| [ 36.693508][ T335] #0: ffffffffa63bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [ 36.693857][ T335] #1: ffff888005ae2c58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [   36.694280][  T335]
| [   36.694280][  T335] stack backtrace:
[   36.694812][  T335] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   36.695240][  T335] Call Trace:
[   36.695394][  T335]  <TASK>
[ 36.695500][ T335] dump_stack_lvl (lib/dump_stack.c:122) 
[ 36.695699][ T335] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 36.695889][ T335] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 36.696172][ T335] 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
[ 36.696432][ T335] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 36.696622][ T335] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 36.696810][ T335] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 36.697026][ T335] ? mn_hlist_invalidate_range_start (mm/mmu_notifier.c:485 (discriminator 4)) 
[ 36.697270][ T335] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 36.697500][ T335] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 36.697773][ T335] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 36.697989][ T335] br_add_if (net/bridge/br_if.c:687) bridge
[ 36.698217][ T335] do_setlink (net/core/rtnetlink.c:2907) 
[ 36.698417][ T335] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 36.698606][ T335] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 36.698796][ T335] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 36.698986][ T335] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.699180][ T335] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.699370][ T335] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 36.699570][ T335] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 36.699804][ T335] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 36.700007][ T335] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 36.700192][ T335] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 36.700389][ T335] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 36.700575][ T335] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 36.700721][ T335] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 36.700922][ T335] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 36.701114][ T335] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 36.701322][ T335] ? 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) 
[ 36.701512][ T335] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 36.701711][ T335] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 36.701946][ T335] ? __create_object (mm/kmemleak.c:751) 
[ 36.702146][ T335] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 36.702340][ T335] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 36.702500][ T335] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 36.702692][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 36.702881][ T335] ? 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) 
[ 36.703087][ T335] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 36.703236][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 36.703431][ T335] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 36.703622][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 36.703811][ T335] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 36.704015][ T335] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 36.704366][ T335] ? 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) 
[ 36.704562][ T335] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 36.704761][ T335] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 36.704949][ T335] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 36.705259][ T335] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 36.705450][ T335] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 36.705634][ T335] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 36.705837][ T335] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 36.706034][ T335] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 36.706350][ T335] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 36.706537][ T335] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 36.706768][ T335] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 36.706974][ T335] ___sys_sendmsg (net/socket.c:2653) 
[ 36.707284][ T335] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 36.707479][ T335] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 36.707667][ T335] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 36.707848][ T335] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 36.708199][ T335] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 36.708393][ T335] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 36.708586][ T335] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 36.708821][ T335] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 36.709016][ T335] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 36.709204][ T335] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 36.709392][ T335] ? __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) 
[ 36.709790][ T335] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 36.709989][ T335] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.710340][  T335] RIP: 0033:0x7f541a3ad7b7
[ 36.710535][ T335] 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)
[   36.711293][  T335] RSP: 002b:00007fffdd4f53b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.711577][  T335] RAX: ffffffffffffffda RBX: 00007fffdd4f5ae0 RCX: 00007f541a3ad7b7
[   36.711858][  T335] RDX: 0000000000000000 RSI: 00007fffdd4f5420 RDI: 0000000000000005
[   36.712130][  T335] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   36.712401][  T335] R10: 0000000024ec3910 R11: 0000000000000246 R12: 0000000000000004
[   36.712791][  T335] R13: 0000000066bea0f6 R14: 0000000000496600 R15: 0000000000000000
| [ 36.715652][ T335] #0: ffffffffa63bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [ 36.715999][ T335] #1: ffff888005ae2c58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [   36.716482][  T335]
| [   36.716482][  T335] stack backtrace:
[   36.716993][  T335] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   36.717509][  T335] Call Trace:
[   36.717656][  T335]  <TASK>
[ 36.717755][ T335] dump_stack_lvl (lib/dump_stack.c:122) 
[ 36.717946][ T335] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 36.718135][ T335] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 36.718510][ T335] 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
[ 36.718775][ T335] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 36.718959][ T335] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 36.719263][ T335] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 36.719491][ T335] ? mn_hlist_invalidate_range_start (mm/mmu_notifier.c:485 (discriminator 4)) 
[ 36.719725][ T335] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 36.719944][ T335] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 36.720319][ T335] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 36.720533][ T335] br_add_if (net/bridge/br_if.c:687) bridge
[ 36.720765][ T335] do_setlink (net/core/rtnetlink.c:2907) 
[ 36.720954][ T335] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 36.721252][ T335] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 36.721440][ T335] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 36.721632][ T335] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.721819][ T335] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.722007][ T335] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 36.722302][ T335] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 36.722529][ T335] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 36.722729][ T335] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 36.722914][ T335] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 36.723208][ T335] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 36.723407][ T335] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 36.723552][ T335] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 36.723740][ T335] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 36.724042][ T335] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 36.724235][ T335] ? 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) 
[ 36.724420][ T335] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 36.724619][ T335] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 36.724976][ T335] ? __create_object (mm/kmemleak.c:751) 
[ 36.725165][ T335] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 36.725355][ T335] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 36.725497][ T335] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 36.725684][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 36.725868][ T335] ? 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) 
[ 36.726051][ T335] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 36.726199][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 36.726386][ T335] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 36.726576][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 36.726766][ T335] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 36.726968][ T335] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 36.727153][ T335] ? 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) 
[ 36.727345][ T335] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 36.727535][ T335] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 36.727720][ T335] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 36.727909][ T335] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 36.728099][ T335] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 36.728396][ T335] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 36.728584][ T335] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 36.728784][ T335] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 36.728971][ T335] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 36.729376][ T335] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 36.729615][ T335] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 36.729812][ T335] ___sys_sendmsg (net/socket.c:2653) 
[ 36.730006][ T335] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 36.730310][ T335] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 36.730498][ T335] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 36.730680][ T335] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 36.730909][ T335] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 36.731208][ T335] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 36.731404][ T335] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 36.731637][ T335] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 36.731829][ T335] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 36.732128][ T335] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 36.732313][ T335] ? __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) 
[ 36.732520][ T335] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 36.732707][ T335] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.733053][  T335] RIP: 0033:0x7f541a3ad7b7
[ 36.733243][ T335] 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)
[   36.733871][  T335] RSP: 002b:00007fffdd4f53b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.734145][  T335] RAX: ffffffffffffffda RBX: 00007fffdd4f5ae0 RCX: 00007f541a3ad7b7
[   36.734422][  T335] RDX: 0000000000000000 RSI: 00007fffdd4f5420 RDI: 0000000000000005
[   36.734807][  T335] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   36.735081][  T335] R10: 0000000024ec3910 R11: 0000000000000246 R12: 0000000000000004
[   36.735353][  T335] R13: 0000000066bea0f6 R14: 0000000000496600 R15: 0000000000000000
| [ 36.738115][ T335] #0: ffffffffa63bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [ 36.738576][ T335] #1: ffff888005ae2c58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [   36.738944][  T335]
| [   36.738944][  T335] stack backtrace:
[   36.739597][  T335] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   36.740022][  T335] Call Trace:
[   36.740278][  T335]  <TASK>
[ 36.740376][ T335] dump_stack_lvl (lib/dump_stack.c:122) 
[ 36.740565][ T335] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 36.740748][ T335] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 36.741013][ T335] 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
[ 36.741383][ T335] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 36.741568][ T335] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 36.741757][ T335] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 36.741969][ T335] ? mn_hlist_invalidate_range_start (mm/mmu_notifier.c:485 (discriminator 4)) 
[ 36.742314][ T335] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 36.742529][ T335] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 36.742793][ T335] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 36.743120][ T335] br_add_if (net/bridge/br_if.c:687) bridge
[ 36.743347][ T335] do_setlink (net/core/rtnetlink.c:2907) 
[ 36.743535][ T335] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 36.743725][ T335] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 36.743909][ T335] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 36.744314][ T335] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.744503][ T335] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.744686][ T335] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 36.744869][ T335] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 36.745206][ T335] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 36.745405][ T335] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 36.745588][ T335] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 36.745785][ T335] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 36.746080][ T335] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 36.746225][ T335] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 36.746412][ T335] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 36.746603][ T335] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 36.746919][ T335] ? 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) 
[ 36.747104][ T335] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 36.747299][ T335] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 36.747534][ T335] ? __create_object (mm/kmemleak.c:751) 
[ 36.747721][ T335] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 36.747919][ T335] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 36.748062][ T335] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 36.748248][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 36.748432][ T335] ? 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) 
[ 36.748619][ T335] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 36.748768][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 36.748954][ T335] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 36.749138][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 36.749327][ T335] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 36.749541][ T335] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 36.749730][ T335] ? 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) 
[ 36.749917][ T335] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 36.750105][ T335] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 36.750404][ T335] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 36.750593][ T335] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 36.750782][ T335] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 36.750964][ T335] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 36.751265][ T335] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 36.751467][ T335] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 36.751653][ T335] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 36.751835][ T335] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 36.752180][ T335] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 36.752377][ T335] ___sys_sendmsg (net/socket.c:2653) 
[ 36.752766][ T335] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 36.752965][ T335] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 36.753265][ T335] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 36.753449][ T335] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 36.753677][ T335] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 36.753865][ T335] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 36.754175][ T335] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 36.754406][ T335] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 36.754597][ T335] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 36.754781][ T335] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 36.755077][ T335] ? __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) 
[ 36.755286][ T335] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 36.755477][ T335] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.755712][  T335] RIP: 0033:0x7f541a3ad7b7
[ 36.756019][ T335] 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)
[   36.756647][  T335] RSP: 002b:00007fffdd4f53b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.757064][  T335] RAX: ffffffffffffffda RBX: 00007fffdd4f5ae0 RCX: 00007f541a3ad7b7
[   36.757341][  T335] RDX: 0000000000000000 RSI: 00007fffdd4f5420 RDI: 0000000000000005
[   36.757614][  T335] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   36.757888][  T335] R10: 0000000024ec3910 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_make_forwarding:br_port_state_selection