======================================
| [   32.035465][  T297] 1 lock held by ip/297:
| [ 32.035597][ T297] #0: ffffffffb09bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   32.035911][  T297]
| [   32.035911][  T297] stack backtrace:
[   32.036379][  T297] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   32.036741][  T297] Call Trace:
[   32.036875][  T297]  <TASK>
[ 32.036968][ T297] dump_stack_lvl (lib/dump_stack.c:122) 
[ 32.037142][ T297] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 32.037310][ T297] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 32.037594][ T297] 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
[ 32.037839][ T297] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 32.038038][ T297] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.038253][ T297] br_add_if (net/bridge/br_if.c:692) bridge
[ 32.038455][ T297] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 32.038620][ T297] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 32.038836][ T297] do_setlink (net/core/rtnetlink.c:2907) 
[ 32.039010][ T297] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 32.039191][ T297] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 32.039362][ T297] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 32.039530][ T297] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 32.039706][ T297] ? __kernel_text_address (kernel/extable.c:79) 
[ 32.039875][ T297] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 32.040052][ T297] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 32.040265][ T297] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 32.040456][ T297] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 32.040627][ T297] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 32.040797][ T297] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 32.040965][ T297] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.041105][ T297] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 32.041310][ T297] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 32.041487][ T297] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 32.041671][ T297] ? 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) 
[ 32.041857][ T297] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 32.042034][ T297] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.042250][ T297] ? __create_object (mm/kmemleak.c:751) 
[ 32.042424][ T297] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 32.042602][ T297] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 32.042733][ T297] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 32.042908][ T297] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.043077][ T297] ? 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) 
[ 32.043254][ T297] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.043390][ T297] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 32.043561][ T297] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 32.043740][ T297] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.043912][ T297] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 32.044097][ T297] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 32.044266][ T297] ? 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) 
[ 32.044436][ T297] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 32.044618][ T297] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 32.044788][ T297] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.044961][ T297] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 32.045157][ T297] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 32.045326][ T297] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 32.045499][ T297] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 32.045677][ T297] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 32.045854][ T297] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 32.046027][ T297] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 32.046237][ T297] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 32.046422][ T297] ___sys_sendmsg (net/socket.c:2653) 
[ 32.046599][ T297] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 32.046772][ T297] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.046944][ T297] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 32.047113][ T297] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 32.047334][ T297] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 32.047504][ T297] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 32.047682][ T297] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.047896][ T297] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 32.048073][ T297] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 32.048242][ T297] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 32.048411][ T297] ? __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) 
[ 32.048611][ T297] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 32.048785][ T297] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   32.048993][  T297] RIP: 0033:0x7f53017917b7
[ 32.049199][ T297] 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)
[   32.049780][  T297] RSP: 002b:00007ffe9f226d28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   32.050052][  T297] RAX: ffffffffffffffda RBX: 00007ffe9f227450 RCX: 00007f53017917b7
[   32.050303][  T297] RDX: 0000000000000000 RSI: 00007ffe9f226d90 RDI: 0000000000000005
[   32.050552][  T297] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   32.050803][  T297] R10: 0000000016a4f910 R11: 0000000000000246 R12: 0000000000000004
[   32.051055][  T297] R13: 0000000066bea577 R14: 0000000000496600 R15: 0000000000000000
| [   32.053292][  T297] 1 lock held by ip/297:
| [ 32.053497][ T297] #0: ffffffffb09bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   32.053813][  T297]
| [   32.053813][  T297] stack backtrace:
[   32.054270][  T297] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   32.054640][  T297] Call Trace:
[   32.054898][  T297]  <TASK>
[ 32.054989][ T297] dump_stack_lvl (lib/dump_stack.c:122) 
[ 32.055165][ T297] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 32.055342][ T297] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 32.055596][ T297] 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
[ 32.055842][ T297] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 32.056041][ T297] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.056251][ T297] br_add_if (net/bridge/br_if.c:692) bridge
[ 32.056450][ T297] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 32.056624][ T297] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 32.056841][ T297] do_setlink (net/core/rtnetlink.c:2907) 
[ 32.057011][ T297] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 32.057178][ T297] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 32.057346][ T297] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 32.057516][ T297] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 32.057694][ T297] ? __kernel_text_address (kernel/extable.c:79) 
[ 32.057868][ T297] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 32.058034][ T297] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 32.058243][ T297] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 32.058425][ T297] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 32.058593][ T297] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 32.058759][ T297] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 32.058927][ T297] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.059061][ T297] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 32.059242][ T297] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 32.059415][ T297] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 32.059594][ T297] ? 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) 
[ 32.059762][ T297] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 32.059937][ T297] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.060150][ T297] ? __create_object (mm/kmemleak.c:751) 
[ 32.060319][ T297] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 32.060498][ T297] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 32.060636][ T297] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 32.060809][ T297] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.060975][ T297] ? 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) 
[ 32.061143][ T297] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.061280][ T297] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 32.061452][ T297] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 32.061616][ T297] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.061782][ T297] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 32.061972][ T297] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 32.062141][ T297] ? 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) 
[ 32.062310][ T297] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 32.062487][ T297] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 32.062656][ T297] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.062830][ T297] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 32.063001][ T297] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 32.063176][ T297] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 32.063346][ T297] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 32.063538][ T297] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 32.063726][ T297] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 32.063892][ T297] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 32.064098][ T297] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 32.064280][ T297] ___sys_sendmsg (net/socket.c:2653) 
[ 32.064451][ T297] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 32.064624][ T297] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.064793][ T297] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 32.064959][ T297] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 32.065166][ T297] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 32.065335][ T297] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 32.065509][ T297] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.065724][ T297] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 32.065896][ T297] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 32.066075][ T297] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 32.066240][ T297] ? __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) 
[ 32.066431][ T297] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 32.066603][ T297] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   32.066813][  T297] RIP: 0033:0x7f53017917b7
[ 32.066989][ T297] 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)
[   32.067574][  T297] RSP: 002b:00007ffe9f226d28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   32.067827][  T297] RAX: ffffffffffffffda RBX: 00007ffe9f227450 RCX: 00007f53017917b7
[   32.068085][  T297] RDX: 0000000000000000 RSI: 00007ffe9f226d90 RDI: 0000000000000005
[   32.068331][  T297] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   32.068582][  T297] R10: 0000000016a4f910 R11: 0000000000000246 R12: 0000000000000004
[   32.068843][  T297] R13: 0000000066bea577 R14: 0000000000496600 R15: 0000000000000000
| [   32.071057][  T297] 1 lock held by ip/297:
| [ 32.071187][ T297] #0: ffffffffb09bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   32.071538][  T297]
| [   32.071538][  T297] stack backtrace:
[   32.072012][  T297] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   32.072392][  T297] Call Trace:
[   32.072522][  T297]  <TASK>
[ 32.072614][ T297] dump_stack_lvl (lib/dump_stack.c:122) 
[ 32.072792][ T297] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 32.072961][ T297] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 32.073214][ T297] br_get_link_af_size_filtered (net/bridge/br_private.h:1611 net/bridge/br_private.h:1608 net/bridge/br_netlink.c:107) bridge
[ 32.073461][ T297] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 32.073668][ T297] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.073884][ T297] br_add_if (net/bridge/br_if.c:692) bridge
[ 32.074086][ T297] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 32.074259][ T297] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 32.074473][ T297] do_setlink (net/core/rtnetlink.c:2907) 
[ 32.074655][ T297] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 32.074830][ T297] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 32.075001][ T297] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 32.075172][ T297] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 32.075345][ T297] ? __kernel_text_address (kernel/extable.c:79) 
[ 32.075515][ T297] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 32.075684][ T297] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 32.075902][ T297] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 32.076085][ T297] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 32.076252][ T297] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 32.076589][ T297] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 32.076772][ T297] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.076905][ T297] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 32.077079][ T297] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 32.077261][ T297] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 32.077550][ T297] ? 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) 
[ 32.077725][ T297] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 32.077901][ T297] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.078114][ T297] ? __create_object (mm/kmemleak.c:751) 
[ 32.078384][ T297] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 32.078560][ T297] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 32.078692][ T297] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 32.078868][ T297] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.079142][ T297] ? 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) 
[ 32.079310][ T297] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 32.079446][ T297] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 32.079616][ T297] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 32.079782][ T297] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 32.080065][ T297] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 32.080247][ T297] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 32.080418][ T297] ? 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) 
[ 32.080588][ T297] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 32.080855][ T297] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 32.081022][ T297] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.081194][ T297] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 32.081365][ T297] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 32.081533][ T297] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 32.081809][ T297] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 32.081988][ T297] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 32.082158][ T297] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 32.082326][ T297] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 32.082533][ T297] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 32.082814][ T297] ___sys_sendmsg (net/socket.c:2653) 
[ 32.082978][ T297] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 32.083149][ T297] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 32.083326][ T297] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 32.083491][ T297] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 32.083812][ T297] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 32.083979][ T297] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 32.084154][ T297] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 32.084461][ T297] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 32.084642][ T297] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 32.084813][ T297] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 32.085079][ T297] ? __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) 
[ 32.085271][ T297] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 32.085439][ T297] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   32.085654][  T297] RIP: 0033:0x7f53017917b7
[ 32.085934][ T297] 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)
[   32.086620][  T297] RSP: 002b:00007ffe9f226d28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   32.086978][  T297] RAX: ffffffffffffffda RBX: 00007ffe9f227450 RCX: 00007f53017917b7
[   32.087225][  T297] RDX: 0000000000000000 RSI: 00007ffe9f226d90 RDI: 0000000000000005
[   32.087476][  T297] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   32.087738][  T297] R10: 0000000016a4f910 R11: 0000000000000246 R12: 0000000000000004
[   32.088083][  T297] R13: 0000000066bea577 R14: 0000000000496600 R15: 0000000000000000
| [  100.484825][  T535] 1 lock held by bridge/535:
| [ 100.485099][ T535] #0: ffffffffb09bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  100.485621][  T535]
| [  100.485621][  T535] stack backtrace:
[  100.486347][  T535] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  100.486948][  T535] Call Trace:
[  100.487168][  T535]  <TASK>
[ 100.487321][ T535] dump_stack_lvl (lib/dump_stack.c:122) 
[ 100.487617][ T535] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 100.487902][ T535] br_get_link_af_size_filtered (net/bridge/br_private.h:1605 net/bridge/br_private.h:1602 net/bridge/br_netlink.c:110) bridge
[ 100.488306][ T535] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 100.488648][ T535] br_setlink (net/bridge/br_netlink.c:669 net/bridge/br_netlink.c:1136) bridge
[ 100.488931][ T535] ? __pfx_br_setlink (net/bridge/br_netlink.c:1085) bridge
[ 100.489152][ T535] ? lock_acquire.part.0 (kernel/locking/lockdep.c:466 kernel/locking/lockdep.c:5761) 
[ 100.489316][ T535] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
[ 100.489496][ T535] ? 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) 
[ 100.489668][ T535] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:129) 
[ 100.489834][ T535] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:104) 
[ 100.490058][ T535] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
[ 100.490220][ T535] ? lock_acquire (kernel/locking/lockdep.c:5732) 
[ 100.490386][ T535] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 52)) 
[ 100.490551][ T535] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:618 kernel/locking/mutex.c:752) 
[ 100.490723][ T535] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 100.490892][ T535] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
[ 100.491157][ T535] ? __pfx___mutex_lock (kernel/locking/mutex.c:751) 
[ 100.491445][ T535] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 100.491721][ T535] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5724) 
[ 100.491978][ T535] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 100.492152][ T535] rtnl_bridge_setlink (net/core/rtnetlink.c:5225) 
[ 100.492322][ T535] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 100.492495][ T535] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 100.492658][ T535] ? 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) 
[ 100.492821][ T535] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 100.492969][ T535] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 100.493260][ T535] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 100.493431][ T535] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 100.493596][ T535] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 100.493778][ T535] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 100.493953][ T535] ? 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) 
[ 100.494119][ T535] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 100.494286][ T535] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 100.494458][ T535] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 100.494633][ T535] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 100.494806][ T535] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 100.495000][ T535] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 100.495282][ T535] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 100.495558][ T535] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 100.495822][ T535] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 100.496083][ T535] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 100.496443][ T535] ___sys_sendmsg (net/socket.c:2653) 
[ 100.496710][ T535] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 100.496983][ T535] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 100.497239][ T535] ? usage_skip (kernel/locking/lockdep.c:2294 kernel/locking/lockdep.c:2262) 
[ 100.497534][ T535] ? reacquire_held_locks (kernel/locking/lockdep.c:5284) 
[ 100.497816][ T535] ? do_user_addr_fault (./include/linux/rcupdate.h:326 ./include/linux/rcupdate.h:838 ./include/linux/mm.h:713 arch/x86/mm/fault.c:1340) 
[ 100.498102][ T535] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 100.498383][ T535] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 100.498603][ T535] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 100.498843][ T535] ? __pfx___up_read (kernel/locking/rwsem.c:1339) 
[ 100.499131][ T535] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 100.499410][ T535] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.499755][  T535] RIP: 0033:0x7f77b85637b7
[ 100.500041][ T535] 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)
[  100.500718][  T535] RSP: 002b:00007ffc8ff06588 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  100.501060][  T535] RAX: ffffffffffffffda RBX: 000000000000ffff RCX: 00007f77b85637b7
[  100.501459][  T535] RDX: 0000000000000000 RSI: 00007ffc8ff065f0 RDI: 0000000000000005
[  100.501853][  T535] RBP: 00007ffc8ff066e0 R08: 0000000000000034 R09: 0000000000000000
[  100.502220][  T535] R10: 00007f77b841c708 R11: 0000000000000246 R12: 000000000000000a


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