======================================
| [ 44.536781][ T339] #0: ffffffffa2fbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645)
| [ 44.537408][ T339] #1: ffff8880052b2c58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [ 44.538088][ T339]
| [ 44.538088][ T339] stack backtrace:
[ 44.539012][ T339] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 44.539728][ T339] Call Trace:
[ 44.539983][ T339] <TASK>
[ 44.540153][ T339] dump_stack_lvl (lib/dump_stack.c:122)
[ 44.540492][ T339] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725)
[ 44.540816][ T339] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 44.541291][ T339] 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
[ 44.541742][ T339] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426)
[ 44.542065][ T339] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426)
[ 44.542397][ T339] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 44.542808][ T339] ? mn_hlist_invalidate_range_start (mm/mmu_notifier.c:485 (discriminator 4))
[ 44.543215][ T339] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 44.543578][ T339] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 44.544041][ T339] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 44.544399][ T339] br_add_if (net/bridge/br_if.c:687) bridge
[ 44.544795][ T339] do_setlink (net/core/rtnetlink.c:2907)
[ 44.545120][ T339] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769)
[ 44.545441][ T339] ? __pfx_do_setlink (net/core/rtnetlink.c:2778)
[ 44.545748][ T339] ? is_bpf_text_address (./kernel/bpf/core.c:772)
[ 44.546065][ T339] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[ 44.546391][ T339] ? __kernel_text_address (kernel/extable.c:79)
[ 44.546713][ T339] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364)
[ 44.547030][ T339] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83)
[ 44.547430][ T339] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[ 44.547800][ T339] ? stack_trace_save (kernel/stacktrace.c:123)
[ 44.548162][ T339] ? __pfx_stack_trace_save (kernel/stacktrace.c:114)
[ 44.548481][ T339] ? __pfx_validate_nla (lib/nlattr.c:396)
[ 44.548804][ T339] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3))
[ 44.549066][ T339] ? kasan_save_stack (mm/kasan/common.c:49)
[ 44.549363][ T339] ? __nla_validate_parse (lib/nlattr.c:638)
[ 44.549673][ T339] __rtnl_newlink (net/core/rtnetlink.c:3696)
[ 44.549995][ T339] ? 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)
[ 44.550300][ T339] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557)
[ 44.550627][ T339] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358)
[ 44.551035][ T339] ? __create_object (mm/kmemleak.c:751)
[ 44.551366][ T339] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52))
[ 44.551681][ T339] rtnl_newlink (net/core/rtnetlink.c:3744)
[ 44.551921][ T339] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647)
[ 44.552236][ T339] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541)
[ 44.552545][ T339] ? 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)
[ 44.552846][ T339] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3))
[ 44.553075][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5142)
[ 44.553393][ T339] netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[ 44.553718][ T339] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541)
[ 44.554034][ T339] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527)
[ 44.554383][ T339] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340)
[ 44.554724][ T339] ? 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)
[ 44.555063][ T339] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357)
[ 44.555378][ T339] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342)
[ 44.555731][ T339] ? find_held_lock (kernel/locking/lockdep.c:5249)
[ 44.556073][ T339] netlink_sendmsg (net/netlink/af_netlink.c:1901)
[ 44.556404][ T339] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820)
[ 44.556758][ T339] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381)
[ 44.557107][ T339] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279)
[ 44.557421][ T339] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597)
[ 44.557745][ T339] ? __pfx_____sys_sendmsg (net/socket.c:2543)
[ 44.558068][ T339] ? __pfx_copy_msghdr_from_user (net/socket.c:2523)
[ 44.558506][ T339] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824)
[ 44.558877][ T339] ___sys_sendmsg (net/socket.c:2653)
[ 44.559256][ T339] ? __pfx____sys_sendmsg (net/socket.c:2640)
[ 44.559605][ T339] ? find_held_lock (kernel/locking/lockdep.c:5249)
[ 44.559954][ T339] ? __lock_release (kernel/locking/lockdep.c:5435)
[ 44.560278][ T339] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001)
[ 44.560692][ T339] ? __pfx___lock_release (kernel/locking/lockdep.c:5411)
[ 44.561048][ T339] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 44.561391][ T339] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358)
[ 44.561791][ T339] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145)
[ 44.562127][ T339] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682)
[ 44.562466][ T339] ? __pfx___sys_sendmsg (net/socket.c:2668)
[ 44.562787][ T339] ? __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)
[ 44.563159][ T339] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 44.563496][ T339] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 44.563884][ T339] RIP: 0033:0x7fab81aa37b7
[ 44.564224][ T339] 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)
[ 44.565396][ T339] RSP: 002b:00007ffc7f3a2828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 44.565904][ T339] RAX: ffffffffffffffda RBX: 00007ffc7f3a2f50 RCX: 00007fab81aa37b7
[ 44.566396][ T339] RDX: 0000000000000000 RSI: 00007ffc7f3a2890 RDI: 0000000000000005
[ 44.566916][ T339] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[ 44.567402][ T339] R10: 0000000000c8a910 R11: 0000000000000246 R12: 0000000000000004
[ 44.567934][ T339] R13: 0000000066be9ace R14: 0000000000496600 R15: 0000000000000000
| [ 44.572254][ T339] #0: ffffffffa2fbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645)
| [ 44.572903][ T339] #1: ffff8880052b2c58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [ 44.573565][ T339]
| [ 44.573565][ T339] stack backtrace:
[ 44.574489][ T339] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 44.575190][ T339] Call Trace:
[ 44.575407][ T339] <TASK>
[ 44.575578][ T339] dump_stack_lvl (lib/dump_stack.c:122)
[ 44.575888][ T339] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725)
[ 44.576225][ T339] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 44.576739][ T339] 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
[ 44.577163][ T339] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426)
[ 44.577467][ T339] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426)
[ 44.577800][ T339] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 44.578186][ T339] ? mn_hlist_invalidate_range_start (mm/mmu_notifier.c:485 (discriminator 4))
[ 44.578589][ T339] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 44.578962][ T339] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 44.579437][ T339] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 44.579842][ T339] br_add_if (net/bridge/br_if.c:687) bridge
[ 44.580226][ T339] do_setlink (net/core/rtnetlink.c:2907)
[ 44.580587][ T339] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769)
[ 44.580935][ T339] ? __pfx_do_setlink (net/core/rtnetlink.c:2778)
[ 44.581293][ T339] ? is_bpf_text_address (./kernel/bpf/core.c:772)
[ 44.581621][ T339] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[ 44.581956][ T339] ? __kernel_text_address (kernel/extable.c:79)
[ 44.582314][ T339] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364)
[ 44.582646][ T339] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83)
[ 44.583135][ T339] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[ 44.583542][ T339] ? stack_trace_save (kernel/stacktrace.c:123)
[ 44.583892][ T339] ? __pfx_stack_trace_save (kernel/stacktrace.c:114)
[ 44.584269][ T339] ? __pfx_validate_nla (lib/nlattr.c:396)
[ 44.584648][ T339] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3))
[ 44.584954][ T339] ? kasan_save_stack (mm/kasan/common.c:49)
[ 44.585306][ T339] ? __nla_validate_parse (lib/nlattr.c:638)
[ 44.585707][ T339] __rtnl_newlink (net/core/rtnetlink.c:3696)
[ 44.586067][ T339] ? 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)
[ 44.586460][ T339] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557)
[ 44.586811][ T339] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358)
[ 44.587238][ T339] ? __create_object (mm/kmemleak.c:751)
[ 44.587584][ T339] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52))
[ 44.587911][ T339] rtnl_newlink (net/core/rtnetlink.c:3744)
[ 44.588221][ T339] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647)
[ 44.588579][ T339] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541)
[ 44.588904][ T339] ? 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)
[ 44.589224][ T339] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3))
[ 44.589481][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5142)
[ 44.589831][ T339] netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[ 44.590166][ T339] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541)
[ 44.590489][ T339] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527)
[ 44.590860][ T339] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340)
[ 44.591204][ T339] ? 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)
[ 44.591567][ T339] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357)
[ 44.591912][ T339] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342)
[ 44.592250][ T339] ? find_held_lock (kernel/locking/lockdep.c:5249)
[ 44.592594][ T339] netlink_sendmsg (net/netlink/af_netlink.c:1901)
[ 44.592937][ T339] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820)
[ 44.593267][ T339] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381)
[ 44.593630][ T339] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279)
[ 44.593969][ T339] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597)
[ 44.594326][ T339] ? __pfx_____sys_sendmsg (net/socket.c:2543)
[ 44.594669][ T339] ? __pfx_copy_msghdr_from_user (net/socket.c:2523)
[ 44.595076][ T339] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824)
[ 44.595452][ T339] ___sys_sendmsg (net/socket.c:2653)
[ 44.595788][ T339] ? __pfx____sys_sendmsg (net/socket.c:2640)
[ 44.596126][ T339] ? find_held_lock (kernel/locking/lockdep.c:5249)
[ 44.596465][ T339] ? __lock_release (kernel/locking/lockdep.c:5435)
[ 44.596793][ T339] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001)
[ 44.597245][ T339] ? __pfx___lock_release (kernel/locking/lockdep.c:5411)
[ 44.597585][ T339] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 44.597932][ T339] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358)
[ 44.598361][ T339] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145)
[ 44.598701][ T339] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682)
[ 44.599059][ T339] ? __pfx___sys_sendmsg (net/socket.c:2668)
[ 44.599422][ T339] ? __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)
[ 44.599803][ T339] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 44.600141][ T339] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 44.600558][ T339] RIP: 0033:0x7fab81aa37b7
[ 44.600900][ T339] 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)
[ 44.602004][ T339] RSP: 002b:00007ffc7f3a2828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 44.602495][ T339] RAX: ffffffffffffffda RBX: 00007ffc7f3a2f50 RCX: 00007fab81aa37b7
[ 44.602957][ T339] RDX: 0000000000000000 RSI: 00007ffc7f3a2890 RDI: 0000000000000005
[ 44.603505][ T339] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[ 44.604024][ T339] R10: 0000000000c8a910 R11: 0000000000000246 R12: 0000000000000004
[ 44.604516][ T339] R13: 0000000066be9ace R14: 0000000000496600 R15: 0000000000000000
| [ 44.608848][ T339] #0: ffffffffa2fbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645)
| [ 44.609771][ T339] #1: ffff8880052b2c58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [ 44.610465][ T339]
| [ 44.610465][ T339] stack backtrace:
[ 44.611275][ T339] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 44.611912][ T339] Call Trace:
[ 44.612361][ T339] <TASK>
[ 44.612525][ T339] dump_stack_lvl (lib/dump_stack.c:122)
[ 44.612837][ T339] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725)
[ 44.613149][ T339] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 44.613602][ T339] 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
[ 44.614063][ T339] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426)
[ 44.614386][ T339] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426)
[ 44.614717][ T339] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 44.615086][ T339] ? mn_hlist_invalidate_range_start (mm/mmu_notifier.c:485 (discriminator 4))
[ 44.615694][ T339] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 44.616103][ T339] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 44.616566][ T339] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 44.616962][ T339] br_add_if (net/bridge/br_if.c:687) bridge
[ 44.617383][ T339] do_setlink (net/core/rtnetlink.c:2907)
[ 44.617715][ T339] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769)
[ 44.618044][ T339] ? __pfx_do_setlink (net/core/rtnetlink.c:2778)
[ 44.618399][ T339] ? is_bpf_text_address (./kernel/bpf/core.c:772)
[ 44.618935][ T339] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[ 44.619273][ T339] ? __kernel_text_address (kernel/extable.c:79)
[ 44.619611][ T339] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364)
[ 44.619943][ T339] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83)
[ 44.620558][ T339] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[ 44.620900][ T339] ? stack_trace_save (kernel/stacktrace.c:123)
[ 44.621214][ T339] ? __pfx_stack_trace_save (kernel/stacktrace.c:114)
[ 44.621543][ T339] ? __pfx_validate_nla (lib/nlattr.c:396)
[ 44.622137][ T339] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3))
[ 44.622387][ T339] ? kasan_save_stack (mm/kasan/common.c:49)
[ 44.622713][ T339] ? __nla_validate_parse (lib/nlattr.c:638)
[ 44.623076][ T339] __rtnl_newlink (net/core/rtnetlink.c:3696)
[ 44.623419][ T339] ? 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)
[ 44.623951][ T339] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557)
[ 44.624278][ T339] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358)
[ 44.624728][ T339] ? __create_object (mm/kmemleak.c:751)
[ 44.625091][ T339] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52))
[ 44.625670][ T339] rtnl_newlink (net/core/rtnetlink.c:3744)
[ 44.625926][ T339] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647)
[ 44.626267][ T339] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541)
[ 44.626582][ T339] ? 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)
[ 44.626913][ T339] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3))
[ 44.627164][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5142)
[ 44.627485][ T339] netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[ 44.627822][ T339] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541)
[ 44.628150][ T339] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527)
[ 44.628707][ T339] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340)
[ 44.629006][ T339] ? 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)
[ 44.629306][ T339] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357)
[ 44.629595][ T339] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342)
[ 44.629911][ T339] ? find_held_lock (kernel/locking/lockdep.c:5249)
[ 44.630242][ T339] netlink_sendmsg (net/netlink/af_netlink.c:1901)
[ 44.630564][ T339] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820)
[ 44.630871][ T339] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381)
[ 44.631391][ T339] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279)
[ 44.631744][ T339] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597)
[ 44.632081][ T339] ? __pfx_____sys_sendmsg (net/socket.c:2543)
[ 44.632396][ T339] ? __pfx_copy_msghdr_from_user (net/socket.c:2523)
[ 44.632791][ T339] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824)
[ 44.633131][ T339] ___sys_sendmsg (net/socket.c:2653)
[ 44.633449][ T339] ? __pfx____sys_sendmsg (net/socket.c:2640)
[ 44.633767][ T339] ? find_held_lock (kernel/locking/lockdep.c:5249)
[ 44.634285][ T339] ? __lock_release (kernel/locking/lockdep.c:5435)
[ 44.634609][ T339] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001)
[ 44.635001][ T339] ? __pfx___lock_release (kernel/locking/lockdep.c:5411)
[ 44.635324][ T339] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 44.635848][ T339] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358)
[ 44.636274][ T339] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145)
[ 44.636644][ T339] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682)
[ 44.636965][ T339] ? __pfx___sys_sendmsg (net/socket.c:2668)
[ 44.637483][ T339] ? __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)
[ 44.637848][ T339] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 44.638205][ T339] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 44.638593][ T339] RIP: 0033:0x7fab81aa37b7
[ 44.638916][ T339] 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)
[ 44.639980][ T339] RSP: 002b:00007ffc7f3a2828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 44.640686][ T339] RAX: ffffffffffffffda RBX: 00007ffc7f3a2f50 RCX: 00007fab81aa37b7
[ 44.641161][ T339] RDX: 0000000000000000 RSI: 00007ffc7f3a2890 RDI: 0000000000000005
[ 44.641631][ T339] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[ 44.642139][ T339] R10: 0000000000c8a910 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