====================================== | [ 520.283241][ T1484] #0: ffffffff9c7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 520.283660][ T1484] #1: ffff888006b2ac58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge | [ 520.284142][ T1484] | [ 520.284142][ T1484] stack backtrace: [ 520.284807][ T1484] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 520.285292][ T1484] Call Trace: [ 520.285463][ T1484] [ 520.285597][ T1484] dump_stack_lvl (lib/dump_stack.c:122) [ 520.285851][ T1484] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 520.286105][ T1484] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 520.286456][ T1484] 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 [ 520.286758][ T1484] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) [ 520.286969][ T1484] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) [ 520.287203][ T1484] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 520.287465][ T1484] br_make_forwarding (net/bridge/br_stp.c:465) bridge [ 520.287700][ T1484] br_port_state_selection (net/bridge/br_stp.c:495) bridge [ 520.288015][ T1484] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge [ 520.288255][ T1484] br_add_if (net/bridge/br_if.c:687) bridge [ 520.288502][ T1484] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 520.288748][ T1484] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 520.289006][ T1484] do_setlink (net/core/rtnetlink.c:2907) [ 520.289222][ T1484] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 520.289455][ T1484] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 520.289649][ T1484] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 520.289847][ T1484] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 520.290065][ T1484] ? __kernel_text_address (kernel/extable.c:79) [ 520.290287][ T1484] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 520.290511][ T1484] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 520.290796][ T1484] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 520.291000][ T1484] ? stack_trace_save (kernel/stacktrace.c:123) [ 520.291232][ T1484] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 520.291431][ T1484] ? __pfx_validate_nla (lib/nlattr.c:396) [ 520.291677][ T1484] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 520.291895][ T1484] ? kasan_save_stack (mm/kasan/common.c:49) [ 520.292113][ T1484] ? __nla_validate_parse (lib/nlattr.c:638) [ 520.292353][ T1484] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 520.292583][ T1484] ? 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) [ 520.292807][ T1484] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 520.293080][ T1484] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 520.293350][ T1484] ? __create_object (mm/kmemleak.c:751) [ 520.293629][ T1484] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 520.293859][ T1484] rtnl_newlink (net/core/rtnetlink.c:3744) [ 520.294019][ T1484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 520.294221][ T1484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 520.294447][ T1484] ? 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) [ 520.294667][ T1484] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 520.294836][ T1484] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 520.295040][ T1484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 520.295250][ T1484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 520.295460][ T1484] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 520.295711][ T1484] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 520.295959][ T1484] ? 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) [ 520.296206][ T1484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 520.296430][ T1484] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 520.296644][ T1484] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 520.296863][ T1484] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 520.297106][ T1484] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 520.297321][ T1484] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 520.297556][ T1484] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 520.297775][ T1484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 520.297988][ T1484] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 520.298197][ T1484] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 520.298447][ T1484] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 520.298686][ T1484] ___sys_sendmsg (net/socket.c:2653) [ 520.298892][ T1484] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 520.299094][ T1484] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 520.299321][ T1484] ? __lock_release (kernel/locking/lockdep.c:5435) [ 520.299518][ T1484] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 520.299796][ T1484] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 520.299997][ T1484] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 520.300221][ T1484] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 520.300482][ T1484] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 520.300710][ T1484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 520.300925][ T1484] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 520.301147][ T1484] ? __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) [ 520.301370][ T1484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 520.301597][ T1484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 520.301892][ T1484] RIP: 0033:0x7f7e4bce57b7 [ 520.302147][ T1484] 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) [ 520.303200][ T1484] RSP: 002b:00007ffc52c92788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 520.303777][ T1484] RAX: ffffffffffffffda RBX: 00007ffc52c92eb0 RCX: 00007f7e4bce57b7 [ 520.304277][ T1484] RDX: 0000000000000000 RSI: 00007ffc52c927f0 RDI: 0000000000000005 [ 520.304779][ T1484] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000 [ 520.305267][ T1484] R10: 0000000018408910 R11: 0000000000000246 R12: 0000000000000003 [ 520.305629][ T1484] R13: 0000000066be9ca7 R14: 0000000000496600 R15: 0000000000000000 | [ 520.309677][ T1484] #0: ffffffff9c7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 520.310292][ T1484] #1: ffff888006b2ac58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge | [ 520.310931][ T1484] | [ 520.310931][ T1484] stack backtrace: [ 520.311801][ T1484] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 520.312511][ T1484] Call Trace: [ 520.312761][ T1484] [ 520.312938][ T1484] dump_stack_lvl (lib/dump_stack.c:122) [ 520.313270][ T1484] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 520.313590][ T1484] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 520.314048][ T1484] 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 [ 520.314490][ T1484] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) [ 520.314814][ T1484] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) [ 520.315142][ T1484] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 520.315551][ T1484] br_make_forwarding (net/bridge/br_stp.c:465) bridge [ 520.315924][ T1484] br_port_state_selection (net/bridge/br_stp.c:495) bridge [ 520.316285][ T1484] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge [ 520.316537][ T1484] br_add_if (net/bridge/br_if.c:687) bridge [ 520.316804][ T1484] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 520.317036][ T1484] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 520.317323][ T1484] do_setlink (net/core/rtnetlink.c:2907) [ 520.317540][ T1484] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 520.317752][ T1484] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 520.317958][ T1484] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 520.318156][ T1484] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 520.318418][ T1484] ? __kernel_text_address (kernel/extable.c:79) [ 520.318619][ T1484] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 520.318833][ T1484] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 520.319112][ T1484] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 520.319328][ T1484] ? stack_trace_save (kernel/stacktrace.c:123) [ 520.319561][ T1484] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 520.319760][ T1484] ? __pfx_validate_nla (lib/nlattr.c:396) [ 520.319984][ T1484] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 520.320163][ T1484] ? kasan_save_stack (mm/kasan/common.c:49) [ 520.320369][ T1484] ? __nla_validate_parse (lib/nlattr.c:638) [ 520.320590][ T1484] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 520.320802][ T1484] ? 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) [ 520.321015][ T1484] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 520.321248][ T1484] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 520.321527][ T1484] ? __create_object (mm/kmemleak.c:751) [ 520.321776][ T1484] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 520.321996][ T1484] rtnl_newlink (net/core/rtnetlink.c:3744) [ 520.322175][ T1484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 520.322524][ T1484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 520.322752][ T1484] ? 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) [ 520.322972][ T1484] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 520.323150][ T1484] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 520.323345][ T1484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 520.323545][ T1484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 520.323745][ T1484] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 520.324009][ T1484] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 520.324262][ T1484] ? 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) [ 520.324462][ T1484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 520.324681][ T1484] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 520.325121][ T1484] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 520.325335][ T1484] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 520.325572][ T1484] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 520.325787][ T1484] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 520.326103][ T1484] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 520.326319][ T1484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 520.326533][ T1484] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 520.326761][ T1484] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 520.327135][ T1484] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 520.327376][ T1484] ___sys_sendmsg (net/socket.c:2653) [ 520.327585][ T1484] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 520.327779][ T1484] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 520.328008][ T1484] ? __lock_release (kernel/locking/lockdep.c:5435) [ 520.328340][ T1484] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 520.328617][ T1484] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 520.328821][ T1484] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 520.329092][ T1484] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 520.329453][ T1484] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 520.329681][ T1484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 520.329880][ T1484] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 520.330106][ T1484] ? __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) [ 520.330554][ T1484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 520.330752][ T1484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 520.331008][ T1484] RIP: 0033:0x7f7e4bce57b7 [ 520.331255][ T1484] 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) [ 520.332037][ T1484] RSP: 002b:00007ffc52c92788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 520.332339][ T1484] RAX: ffffffffffffffda RBX: 00007ffc52c92eb0 RCX: 00007f7e4bce57b7 [ 520.332674][ T1484] RDX: 0000000000000000 RSI: 00007ffc52c927f0 RDI: 0000000000000005 [ 520.332998][ T1484] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000 [ 520.333332][ T1484] R10: 0000000018408910 R11: 0000000000000246 R12: 0000000000000003 [ 520.333625][ T1484] R13: 0000000066be9ca7 R14: 0000000000496600 R15: 0000000000000000 | [ 520.336911][ T1484] #0: ffffffff9c7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 520.337309][ T1484] #1: ffff888006b2ac58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge | [ 520.337734][ T1484] | [ 520.337734][ T1484] stack backtrace: [ 520.338322][ T1484] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 520.338786][ T1484] Call Trace: [ 520.338941][ T1484] [ 520.339042][ T1484] dump_stack_lvl (lib/dump_stack.c:122) [ 520.339382][ T1484] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 520.339599][ T1484] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 520.339926][ T1484] 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 [ 520.340212][ T1484] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) [ 520.340551][ T1484] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) [ 520.340748][ T1484] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 520.341011][ T1484] br_make_forwarding (net/bridge/br_stp.c:465) bridge [ 520.341257][ T1484] br_port_state_selection (net/bridge/br_stp.c:495) bridge [ 520.341559][ T1484] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge [ 520.341794][ T1484] br_add_if (net/bridge/br_if.c:687) bridge [ 520.342025][ T1484] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 520.342237][ T1484] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 520.342547][ T1484] do_setlink (net/core/rtnetlink.c:2907) [ 520.342840][ T1484] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 520.343037][ T1484] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 520.343255][ T1484] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 520.343589][ T1484] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 520.343799][ T1484] ? __kernel_text_address (kernel/extable.c:79) [ 520.344021][ T1484] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 520.344207][ T1484] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 520.344466][ T1484] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 520.344675][ T1484] ? stack_trace_save (kernel/stacktrace.c:123) [ 520.344902][ T1484] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 520.345094][ T1484] ? __pfx_validate_nla (lib/nlattr.c:396) [ 520.345290][ T1484] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 520.345442][ T1484] ? kasan_save_stack (mm/kasan/common.c:49) [ 520.345646][ T1484] ? __nla_validate_parse (lib/nlattr.c:638) [ 520.345841][ T1484] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 520.346100][ T1484] ? 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) [ 520.346580][ T1484] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 520.346824][ T1484] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 520.347086][ T1484] ? __create_object (mm/kmemleak.c:751) [ 520.347297][ T1484] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 520.347513][ T1484] rtnl_newlink (net/core/rtnetlink.c:3744) [ 520.347677][ T1484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 520.347894][ T1484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 520.348099][ T1484] ? 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) [ 520.348304][ T1484] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 520.348461][ T1484] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 520.348673][ T1484] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 520.348885][ T1484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 520.349092][ T1484] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 520.349430][ T1484] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 520.349632][ T1484] ? 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) [ 520.349840][ T1484] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 520.350053][ T1484] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 520.350377][ T1484] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 520.350598][ T1484] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 520.350815][ T1484] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 520.351066][ T1484] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 520.351584][ T1484] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 520.351920][ T1484] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 520.352231][ T1484] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 520.352492][ T1484] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 520.352761][ T1484] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 520.352975][ T1484] ___sys_sendmsg (net/socket.c:2653) [ 520.353199][ T1484] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 520.353402][ T1484] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 520.353629][ T1484] ? __lock_release (kernel/locking/lockdep.c:5435) [ 520.353862][ T1484] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 520.354135][ T1484] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 520.354360][ T1484] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 520.354579][ T1484] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 520.355000][ T1484] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 520.355237][ T1484] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 520.355439][ T1484] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 520.355674][ T1484] ? __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) [ 520.356056][ T1484] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 520.356319][ T1484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 520.356591][ T1484] RIP: 0033:0x7f7e4bce57b7 [ 520.356804][ T1484] 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) [ 520.357715][ T1484] RSP: 002b:00007ffc52c92788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 520.358183][ T1484] RAX: ffffffffffffffda RBX: 00007ffc52c92eb0 RCX: 00007f7e4bce57b7 [ 520.358502][ T1484] RDX: 0000000000000000 RSI: 00007ffc52c927f0 RDI: 0000000000000005 [ 520.358797][ T1484] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000 [ 520.359248][ T1484] R10: 0000000018408910 R11: 0000000000000246 R12: 0000000000000003 Finger prints: lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_make_forwarding:br_port_state_selection