======================================
| [ 37.141112][ T343] #0: ffffffffa31bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [ 37.141455][ T343] #1: ffff88800623ac58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [   37.141862][  T343]
| [   37.141862][  T343] stack backtrace:
[   37.142371][  T343] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   37.142781][  T343] Call Trace:
[   37.142927][  T343]  <TASK>
[ 37.143046][ T343] dump_stack_lvl (lib/dump_stack.c:122) 
[ 37.143254][ T343] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 37.143442][ T343] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 37.143707][ T343] 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
[ 37.143966][ T343] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 37.144159][ T343] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 37.144359][ T343] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 37.144572][ T343] ? mn_hlist_invalidate_range_start (mm/mmu_notifier.c:485 (discriminator 4)) 
[ 37.144803][ T343] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 37.145020][ T343] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 37.145285][ T343] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 37.145499][ T343] br_add_if (net/bridge/br_if.c:687) bridge
[ 37.145725][ T343] do_setlink (net/core/rtnetlink.c:2907) 
[ 37.145924][ T343] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 37.146114][ T343] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 37.146302][ T343] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 37.146486][ T343] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 37.146677][ T343] ? __kernel_text_address (kernel/extable.c:79) 
[ 37.146861][ T343] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 37.147044][ T343] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 37.147280][ T343] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 37.147489][ T343] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 37.147675][ T343] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 37.147860][ T343] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 37.148047][ T343] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 37.148208][ T343] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 37.148395][ T343] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 37.148584][ T343] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 37.148776][ T343] ? 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) 
[ 37.148989][ T343] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 37.149183][ T343] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.149419][ T343] ? __create_object (mm/kmemleak.c:751) 
[ 37.149613][ T343] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 37.149806][ T343] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 37.149951][ T343] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 37.150140][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 37.150325][ T343] ? 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) 
[ 37.150510][ T343] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 37.150663][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 37.150850][ T343] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 37.151036][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 37.151226][ T343] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 37.151430][ T343] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 37.151618][ T343] ? 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) 
[ 37.151807][ T343] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 37.152000][ T343] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 37.152190][ T343] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 37.152383][ T343] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 37.152573][ T343] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 37.152755][ T343] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 37.152950][ T343] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 37.153145][ T343] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 37.153335][ T343] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 37.153519][ T343] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 37.153753][ T343] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 37.153955][ T343] ___sys_sendmsg (net/socket.c:2653) 
[ 37.154181][ T343] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 37.154370][ T343] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 37.154559][ T343] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 37.154746][ T343] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 37.154978][ T343] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 37.155167][ T343] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 37.155380][ T343] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.155618][ T343] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 37.155811][ T343] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 37.155997][ T343] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 37.156182][ T343] ? __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) 
[ 37.156392][ T343] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 37.156580][ T343] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.156816][  T343] RIP: 0033:0x7ff68f53e7b7
[ 37.157011][ T343] 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)
[   37.157646][  T343] RSP: 002b:00007ffca092c498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.157924][  T343] RAX: ffffffffffffffda RBX: 00007ffca092cbc0 RCX: 00007ff68f53e7b7
[   37.158205][  T343] RDX: 0000000000000000 RSI: 00007ffca092c500 RDI: 0000000000000005
[   37.158485][  T343] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   37.158764][  T343] R10: 000000002243f910 R11: 0000000000000246 R12: 0000000000000004
[   37.159050][  T343] R13: 0000000066bea424 R14: 0000000000496600 R15: 0000000000000000
| [ 37.161429][ T343] #0: ffffffffa31bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [ 37.161760][ T343] #1: ffff88800623ac58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [   37.162137][  T343]
| [   37.162137][  T343] stack backtrace:
[   37.162650][  T343] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   37.163064][  T343] Call Trace:
[   37.163208][  T343]  <TASK>
[ 37.163306][ T343] dump_stack_lvl (lib/dump_stack.c:122) 
[ 37.163495][ T343] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 37.163683][ T343] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 37.163949][ T343] 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
[ 37.164219][ T343] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 37.164408][ T343] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 37.164598][ T343] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 37.164828][ T343] ? mn_hlist_invalidate_range_start (mm/mmu_notifier.c:485 (discriminator 4)) 
[ 37.165139][ T343] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 37.165366][ T343] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 37.165632][ T343] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 37.165851][ T343] br_add_if (net/bridge/br_if.c:687) bridge
[ 37.166087][ T343] do_setlink (net/core/rtnetlink.c:2907) 
[ 37.166274][ T343] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 37.166463][ T343] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 37.166654][ T343] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 37.166846][ T343] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 37.167035][ T343] ? __kernel_text_address (kernel/extable.c:79) 
[ 37.167225][ T343] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 37.167407][ T343] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 37.167634][ T343] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 37.167833][ T343] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 37.168018][ T343] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 37.168205][ T343] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 37.168388][ T343] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 37.168533][ T343] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 37.168733][ T343] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 37.168923][ T343] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 37.169127][ T343] ? 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) 
[ 37.169317][ T343] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 37.169507][ T343] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.169737][ T343] ? __create_object (mm/kmemleak.c:751) 
[ 37.169921][ T343] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 37.170116][ T343] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 37.170256][ T343] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 37.170449][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 37.170642][ T343] ? 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) 
[ 37.170823][ T343] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 37.170968][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 37.171153][ T343] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 37.171349][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 37.171538][ T343] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 37.171737][ T343] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 37.171930][ T343] ? 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) 
[ 37.172116][ T343] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 37.172306][ T343] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 37.172490][ T343] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 37.172677][ T343] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 37.172868][ T343] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 37.173053][ T343] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 37.173239][ T343] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 37.173434][ T343] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 37.173621][ T343] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 37.173808][ T343] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 37.174049][ T343] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 37.174244][ T343] ___sys_sendmsg (net/socket.c:2653) 
[ 37.174431][ T343] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 37.174615][ T343] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 37.174808][ T343] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 37.174993][ T343] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 37.175223][ T343] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 37.175427][ T343] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 37.175629][ T343] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.175873][ T343] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 37.176080][ T343] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 37.176283][ T343] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 37.176482][ T343] ? __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) 
[ 37.176707][ T343] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 37.176905][ T343] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.177150][  T343] RIP: 0033:0x7ff68f53e7b7
[ 37.177352][ T343] 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)
[   37.178029][  T343] RSP: 002b:00007ffca092c498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.178340][  T343] RAX: ffffffffffffffda RBX: 00007ffca092cbc0 RCX: 00007ff68f53e7b7
[   37.178631][  T343] RDX: 0000000000000000 RSI: 00007ffca092c500 RDI: 0000000000000005
[   37.178922][  T343] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   37.179220][  T343] R10: 000000002243f910 R11: 0000000000000246 R12: 0000000000000004
[   37.179516][  T343] R13: 0000000066bea424 R14: 0000000000496600 R15: 0000000000000000
| [ 37.182024][ T343] #0: ffffffffa31bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [ 37.182377][ T343] #1: ffff88800623ac58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [   37.182758][  T343]
| [   37.182758][  T343] stack backtrace:
[   37.183303][  T343] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   37.183743][  T343] Call Trace:
[   37.184083][  T343]  <TASK>
[ 37.184187][ T343] dump_stack_lvl (lib/dump_stack.c:122) 
[ 37.184394][ T343] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 37.184595][ T343] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 37.184880][ T343] 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
[ 37.185152][ T343] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 37.185347][ T343] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 37.185545][ T343] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 37.185770][ T343] ? mn_hlist_invalidate_range_start (mm/mmu_notifier.c:485 (discriminator 4)) 
[ 37.186024][ T343] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 37.186252][ T343] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 37.186529][ T343] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 37.186754][ T343] br_add_if (net/bridge/br_if.c:687) bridge
[ 37.186990][ T343] do_setlink (net/core/rtnetlink.c:2907) 
[ 37.187187][ T343] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 37.187389][ T343] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 37.187695][ T343] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 37.187896][ T343] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 37.188100][ T343] ? __kernel_text_address (kernel/extable.c:79) 
[ 37.188294][ T343] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 37.188488][ T343] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 37.188843][ T343] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 37.189059][ T343] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 37.189254][ T343] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 37.189455][ T343] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 37.189762][ T343] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 37.189915][ T343] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 37.190114][ T343] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 37.190330][ T343] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 37.190533][ T343] ? 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) 
[ 37.190730][ T343] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 37.190932][ T343] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.191189][ T343] ? __create_object (mm/kmemleak.c:751) 
[ 37.191499][ T343] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 37.191711][ T343] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 37.191862][ T343] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 37.192061][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 37.192257][ T343] ? 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) 
[ 37.192561][ T343] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 37.192715][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 37.192913][ T343] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 37.193121][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 37.193436][ T343] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 37.193648][ T343] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 37.193844][ T343] ? 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) 
[ 37.194053][ T343] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 37.194474][ T343] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 37.194682][ T343] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 37.194887][ T343] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 37.195092][ T343] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 37.195292][ T343] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 37.195600][ T343] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 37.195804][ T343] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 37.196002][ T343] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 37.196201][ T343] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 37.196554][ T343] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 37.196761][ T343] ___sys_sendmsg (net/socket.c:2653) 
[ 37.196974][ T343] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 37.197172][ T343] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 37.197480][ T343] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 37.197673][ T343] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 37.197925][ T343] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 37.198124][ T343] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 37.198438][ T343] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.198683][ T343] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 37.198902][ T343] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 37.199099][ T343] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 37.199407][ T343] ? __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) 
[ 37.199627][ T343] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 37.199826][ T343] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.200067][  T343] RIP: 0033:0x7ff68f53e7b7
[ 37.200381][ T343] 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)
[   37.201051][  T343] RSP: 002b:00007ffca092c498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.201460][  T343] RAX: ffffffffffffffda RBX: 00007ffca092cbc0 RCX: 00007ff68f53e7b7
[   37.201748][  T343] RDX: 0000000000000000 RSI: 00007ffca092c500 RDI: 0000000000000005
[   37.202150][  T343] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   37.202448][  T343] R10: 000000002243f910 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