======================================
| [   31.857917][  T296] 1 lock held by ip/296:
| [ 31.858069][ T296] #0: ffffffffab5bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   31.858422][  T296]
| [   31.858422][  T296] stack backtrace:
[   31.858903][  T296] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   31.859286][  T296] Call Trace:
[   31.859450][  T296]  <TASK>
[ 31.859543][ T296] dump_stack_lvl (lib/dump_stack.c:122) 
[ 31.859723][ T296] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 31.859892][ T296] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 31.860186][ T296] 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
[ 31.860449][ T296] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 31.860648][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.860866][ T296] br_add_if (net/bridge/br_if.c:692) bridge
[ 31.861068][ T296] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 31.861238][ T296] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 31.861469][ T296] do_setlink (net/core/rtnetlink.c:2907) 
[ 31.861648][ T296] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 31.861822][ T296] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 31.861992][ T296] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 31.862160][ T296] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 31.862340][ T296] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.862508][ T296] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 31.862674][ T296] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 31.862890][ T296] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 31.863079][ T296] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 31.863246][ T296] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 31.863426][ T296] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 31.863620][ T296] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.863753][ T296] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 31.863947][ T296] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 31.864137][ T296] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 31.864329][ T296] ? 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) 
[ 31.864530][ T296] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 31.864708][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.864938][ T296] ? __create_object (mm/kmemleak.c:751) 
[ 31.865124][ T296] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 31.865310][ T296] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 31.865464][ T296] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 31.865650][ T296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.865820][ T296] ? 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) 
[ 31.866023][ T296] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.866157][ T296] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 31.866361][ T296] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 31.866562][ T296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.866737][ T296] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 31.866923][ T296] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 31.867098][ T296] ? 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) 
[ 31.867288][ T296] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 31.867503][ T296] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 31.867686][ T296] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.867884][ T296] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 31.868060][ T296] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 31.868241][ T296] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 31.868432][ T296] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 31.868611][ T296] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 31.868788][ T296] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 31.868963][ T296] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 31.869175][ T296] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 31.869379][ T296] ___sys_sendmsg (net/socket.c:2653) 
[ 31.869555][ T296] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 31.869727][ T296] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.869900][ T296] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 31.870076][ T296] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 31.870296][ T296] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 31.870488][ T296] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 31.870662][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.870874][ T296] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 31.871057][ T296] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 31.871229][ T296] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 31.871409][ T296] ? __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) 
[ 31.871600][ T296] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.871779][ T296] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.871999][  T296] RIP: 0033:0x7f3f1e2597b7
[ 31.872179][ T296] 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)
[   31.872774][  T296] RSP: 002b:00007ffea2aa38c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.873030][  T296] RAX: ffffffffffffffda RBX: 00007ffea2aa3ff0 RCX: 00007f3f1e2597b7
[   31.873290][  T296] RDX: 0000000000000000 RSI: 00007ffea2aa3930 RDI: 0000000000000005
[   31.873578][  T296] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   31.873828][  T296] R10: 0000000017f5a910 R11: 0000000000000246 R12: 0000000000000004
[   31.874088][  T296] R13: 0000000066bea13e R14: 0000000000496600 R15: 0000000000000000
| [   31.876221][  T296] 1 lock held by ip/296:
| [ 31.876381][ T296] #0: ffffffffab5bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   31.876710][  T296]
| [   31.876710][  T296] stack backtrace:
[   31.877209][  T296] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   31.877632][  T296] Call Trace:
[   31.877765][  T296]  <TASK>
[ 31.877860][ T296] dump_stack_lvl (lib/dump_stack.c:122) 
[ 31.878060][ T296] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 31.878256][ T296] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 31.878577][ T296] 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
[ 31.878849][ T296] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 31.879062][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.879276][ T296] br_add_if (net/bridge/br_if.c:692) bridge
[ 31.879500][ T296] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 31.879692][ T296] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 31.879912][ T296] do_setlink (net/core/rtnetlink.c:2907) 
[ 31.880102][ T296] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 31.880292][ T296] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 31.880486][ T296] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 31.880669][ T296] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 31.880841][ T296] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.881022][ T296] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 31.881204][ T296] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 31.881476][ T296] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 31.881662][ T296] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 31.881836][ T296] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 31.882010][ T296] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 31.882192][ T296] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.882338][ T296] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 31.882512][ T296] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 31.882685][ T296] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 31.882862][ T296] ? 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) 
[ 31.883047][ T296] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 31.883218][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.883462][ T296] ? __create_object (mm/kmemleak.c:751) 
[ 31.883638][ T296] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 31.883827][ T296] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 31.883955][ T296] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 31.884138][ T296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.884324][ T296] ? 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) 
[ 31.884497][ T296] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.884629][ T296] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 31.884817][ T296] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 31.884990][ T296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.885173][ T296] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 31.885373][ T296] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 31.885559][ T296] ? 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) 
[ 31.885742][ T296] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 31.885917][ T296] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 31.886113][ T296] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.886293][ T296] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 31.886502][ T296] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 31.886679][ T296] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 31.886865][ T296] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 31.887057][ T296] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 31.887230][ T296] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 31.887423][ T296] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 31.887648][ T296] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 31.887856][ T296] ___sys_sendmsg (net/socket.c:2653) 
[ 31.888041][ T296] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 31.888215][ T296] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.888406][ T296] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 31.888577][ T296] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 31.888803][ T296] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 31.888980][ T296] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 31.889164][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.889427][ T296] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 31.889605][ T296] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 31.889797][ T296] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 31.889963][ T296] ? __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) 
[ 31.890165][ T296] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.890351][ T296] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.890562][  T296] RIP: 0033:0x7f3f1e2597b7
[ 31.890743][ T296] 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)
[   31.891338][  T296] RSP: 002b:00007ffea2aa38c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.891591][  T296] RAX: ffffffffffffffda RBX: 00007ffea2aa3ff0 RCX: 00007f3f1e2597b7
[   31.891842][  T296] RDX: 0000000000000000 RSI: 00007ffea2aa3930 RDI: 0000000000000005
[   31.892097][  T296] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   31.892354][  T296] R10: 0000000017f5a910 R11: 0000000000000246 R12: 0000000000000004
[   31.892611][  T296] R13: 0000000066bea13e R14: 0000000000496600 R15: 0000000000000000
| [   31.895004][  T296] 1 lock held by ip/296:
| [ 31.895143][ T296] #0: ffffffffab5bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   31.895594][  T296]
| [   31.895594][  T296] stack backtrace:
[   31.896095][  T296] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   31.896504][  T296] Call Trace:
[   31.896633][  T296]  <TASK>
[ 31.896738][ T296] dump_stack_lvl (lib/dump_stack.c:122) 
[ 31.896913][ T296] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 31.897192][ T296] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 31.897510][ T296] 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
[ 31.897764][ T296] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 31.897974][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.898286][ T296] br_add_if (net/bridge/br_if.c:692) bridge
[ 31.898499][ T296] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 31.898678][ T296] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 31.898903][ T296] do_setlink (net/core/rtnetlink.c:2907) 
[ 31.899189][ T296] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 31.899375][ T296] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 31.899551][ T296] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 31.899723][ T296] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 31.900011][ T296] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.900192][ T296] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 31.900373][ T296] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 31.900606][ T296] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 31.900901][ T296] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 31.901067][ T296] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 31.901251][ T296] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 31.901435][ T296] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.901687][ T296] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 31.901881][ T296] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 31.902055][ T296] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 31.902247][ T296] ? 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) 
[ 31.902432][ T296] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 31.902726][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.902950][ T296] ? __create_object (mm/kmemleak.c:751) 
[ 31.903131][ T296] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 31.903344][ T296] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 31.903595][ T296] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 31.903763][ T296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.903948][ T296] ? 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) 
[ 31.904125][ T296] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.904263][ T296] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 31.904465][ T296] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 31.904647][ T296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.904828][ T296] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 31.905019][ T296] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 31.905298][ T296] ? 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) 
[ 31.905538][ T296] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 31.905707][ T296] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 31.905879][ T296] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.906184][ T296] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 31.906385][ T296] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 31.906549][ T296] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 31.906724][ T296] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 31.907012][ T296] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 31.907205][ T296] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 31.907387][ T296] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 31.907614][ T296] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 31.907906][ T296] ___sys_sendmsg (net/socket.c:2653) 
[ 31.908089][ T296] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 31.908256][ T296] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.908454][ T296] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 31.908734][ T296] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 31.908942][ T296] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 31.909125][ T296] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 31.909315][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.909734][ T296] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 31.909910][ T296] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 31.910097][ T296] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 31.910267][ T296] ? __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) 
[ 31.910564][ T296] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.910735][ T296] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.910941][  T296] RIP: 0033:0x7f3f1e2597b7
[ 31.911117][ T296] 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)
[   31.911831][  T296] RSP: 002b:00007ffea2aa38c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.912086][  T296] RAX: ffffffffffffffda RBX: 00007ffea2aa3ff0 RCX: 00007f3f1e2597b7
[   31.912343][  T296] RDX: 0000000000000000 RSI: 00007ffea2aa3930 RDI: 0000000000000005
[   31.912595][  T296] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   31.912941][  T296] R10: 0000000017f5a910 R11: 0000000000000246 R12: 0000000000000004


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