====================================== | [ 45.421065][ T394] 1 lock held by ip/394: | [ 45.421204][ T394] #0: ffffffff9c7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 45.421557][ T394] | [ 45.421557][ T394] stack backtrace: [ 45.422080][ T394] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 45.422476][ T394] Call Trace: [ 45.422672][ T394] [ 45.422821][ T394] dump_stack_lvl (lib/dump_stack.c:122) [ 45.423117][ T394] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 45.423385][ T394] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 45.423854][ T394] 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 [ 45.424258][ T394] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 45.424593][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 45.424961][ T394] br_add_if (net/bridge/br_if.c:692) bridge [ 45.425323][ T394] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 45.425627][ T394] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 45.425998][ T394] do_setlink (net/core/rtnetlink.c:2907) [ 45.426296][ T394] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 45.426601][ T394] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 45.426896][ T394] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 45.427188][ T394] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 45.427482][ T394] ? __kernel_text_address (kernel/extable.c:79) [ 45.427775][ T394] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 45.428069][ T394] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 45.428444][ T394] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 45.428752][ T394] ? stack_trace_save (kernel/stacktrace.c:123) [ 45.428969][ T394] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 45.429148][ T394] ? __pfx_validate_nla (lib/nlattr.c:396) [ 45.429331][ T394] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 45.429471][ T394] ? kasan_save_stack (mm/kasan/common.c:49) [ 45.429667][ T394] ? __nla_validate_parse (lib/nlattr.c:638) [ 45.430229][ T394] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 45.430480][ T394] ? 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) [ 45.430665][ T394] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 45.430851][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 45.431086][ T394] ? __create_object (mm/kmemleak.c:751) [ 45.431270][ T394] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 45.431458][ T394] rtnl_newlink (net/core/rtnetlink.c:3744) [ 45.431596][ T394] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 45.431791][ T394] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 45.431981][ T394] ? 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) [ 45.432160][ T394] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 45.432300][ T394] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 45.432482][ T394] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 45.432668][ T394] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 45.432851][ T394] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 45.433053][ T394] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 45.433235][ T394] ? 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) [ 45.433418][ T394] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 45.433599][ T394] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 45.433778][ T394] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 45.433998][ T394] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 45.434190][ T394] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 45.434366][ T394] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 45.434554][ T394] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 45.434741][ T394] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 45.434939][ T394] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 45.435120][ T394] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 45.435344][ T394] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 45.435533][ T394] ___sys_sendmsg (net/socket.c:2653) [ 45.435716][ T394] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 45.435908][ T394] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 45.436093][ T394] ? __lock_release (kernel/locking/lockdep.c:5435) [ 45.436270][ T394] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 45.436497][ T394] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 45.436680][ T394] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 45.436866][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 45.437101][ T394] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 45.437288][ T394] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 45.437468][ T394] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 45.437642][ T394] ? __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) [ 45.437844][ T394] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 45.438035][ T394] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 45.438274][ T394] RIP: 0033:0x7f48446f87b7 [ 45.438462][ T394] 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) [ 45.439088][ T394] RSP: 002b:00007ffc68a7d358 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 45.439359][ T394] RAX: ffffffffffffffda RBX: 00007ffc68a7da80 RCX: 00007f48446f87b7 [ 45.439620][ T394] RDX: 0000000000000000 RSI: 00007ffc68a7d3c0 RDI: 0000000000000005 [ 45.439901][ T394] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 45.440166][ T394] R10: 00000000226bb910 R11: 0000000000000246 R12: 0000000000000004 [ 45.440433][ T394] R13: 0000000066be9e30 R14: 0000000000496600 R15: 0000000000000000 | [ 45.442614][ T394] 1 lock held by ip/394: | [ 45.442753][ T394] #0: ffffffff9c7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 45.443203][ T394] | [ 45.443203][ T394] stack backtrace: [ 45.443846][ T394] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 45.444243][ T394] Call Trace: [ 45.444381][ T394] [ 45.444478][ T394] dump_stack_lvl (lib/dump_stack.c:122) [ 45.444666][ T394] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 45.444844][ T394] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 45.445122][ T394] 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 [ 45.445379][ T394] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 45.445591][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 45.445814][ T394] br_add_if (net/bridge/br_if.c:692) bridge [ 45.446037][ T394] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 45.446217][ T394] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 45.446447][ T394] do_setlink (net/core/rtnetlink.c:2907) [ 45.446632][ T394] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 45.446813][ T394] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 45.446998][ T394] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 45.447180][ T394] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 45.447361][ T394] ? __kernel_text_address (kernel/extable.c:79) [ 45.447538][ T394] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 45.447715][ T394] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 45.447948][ T394] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 45.448154][ T394] ? stack_trace_save (kernel/stacktrace.c:123) [ 45.448337][ T394] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 45.448517][ T394] ? __pfx_validate_nla (lib/nlattr.c:396) [ 45.448700][ T394] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 45.448840][ T394] ? kasan_save_stack (mm/kasan/common.c:49) [ 45.449037][ T394] ? __nla_validate_parse (lib/nlattr.c:638) [ 45.449223][ T394] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 45.449429][ T394] ? 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) [ 45.449637][ T394] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 45.449854][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 45.450089][ T394] ? __create_object (mm/kmemleak.c:751) [ 45.450272][ T394] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 45.450478][ T394] rtnl_newlink (net/core/rtnetlink.c:3744) [ 45.450616][ T394] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 45.450814][ T394] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 45.451052][ T394] ? 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) [ 45.451237][ T394] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 45.451381][ T394] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 45.451560][ T394] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 45.451740][ T394] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 45.451934][ T394] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 45.452153][ T394] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 45.452342][ T394] ? 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) [ 45.452538][ T394] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 45.452733][ T394] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 45.452952][ T394] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 45.453153][ T394] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 45.453336][ T394] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 45.453520][ T394] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 45.453717][ T394] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 45.453922][ T394] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 45.454146][ T394] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 45.454322][ T394] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 45.454564][ T394] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 45.454754][ T394] ___sys_sendmsg (net/socket.c:2653) [ 45.454959][ T394] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 45.455139][ T394] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 45.455321][ T394] ? __lock_release (kernel/locking/lockdep.c:5435) [ 45.455496][ T394] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 45.455717][ T394] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 45.455912][ T394] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 45.456108][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 45.456333][ T394] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 45.456520][ T394] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 45.456698][ T394] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 45.456878][ T394] ? __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) [ 45.457087][ T394] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 45.457268][ T394] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 45.457494][ T394] RIP: 0033:0x7f48446f87b7 [ 45.457687][ T394] 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) [ 45.458365][ T394] RSP: 002b:00007ffc68a7d358 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 45.458666][ T394] RAX: ffffffffffffffda RBX: 00007ffc68a7da80 RCX: 00007f48446f87b7 [ 45.458974][ T394] RDX: 0000000000000000 RSI: 00007ffc68a7d3c0 RDI: 0000000000000005 [ 45.459246][ T394] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 45.459529][ T394] R10: 00000000226bb910 R11: 0000000000000246 R12: 0000000000000004 [ 45.459812][ T394] R13: 0000000066be9e30 R14: 0000000000496600 R15: 0000000000000000 | [ 45.462237][ T394] 1 lock held by ip/394: | [ 45.462386][ T394] #0: ffffffff9c7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 45.462716][ T394] | [ 45.462716][ T394] stack backtrace: [ 45.463309][ T394] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 45.463808][ T394] Call Trace: [ 45.463946][ T394] [ 45.464044][ T394] dump_stack_lvl (lib/dump_stack.c:122) [ 45.464232][ T394] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 45.464411][ T394] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 45.464873][ T394] 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 [ 45.465133][ T394] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 45.465348][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 45.465572][ T394] br_add_if (net/bridge/br_if.c:692) bridge [ 45.465880][ T394] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 45.466059][ T394] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 45.466286][ T394] do_setlink (net/core/rtnetlink.c:2907) [ 45.466468][ T394] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 45.466747][ T394] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 45.466927][ T394] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 45.467108][ T394] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 45.467288][ T394] ? __kernel_text_address (kernel/extable.c:79) [ 45.467583][ T394] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 45.467762][ T394] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 45.467986][ T394] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 45.468191][ T394] ? stack_trace_save (kernel/stacktrace.c:123) [ 45.468375][ T394] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 45.468584][ T394] ? __pfx_validate_nla (lib/nlattr.c:396) [ 45.468765][ T394] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 45.468918][ T394] ? kasan_save_stack (mm/kasan/common.c:49) [ 45.469104][ T394] ? __nla_validate_parse (lib/nlattr.c:638) [ 45.469314][ T394] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 45.469520][ T394] ? 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) [ 45.469711][ T394] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 45.469920][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 45.470258][ T394] ? __create_object (mm/kmemleak.c:751) [ 45.470439][ T394] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 45.470649][ T394] rtnl_newlink (net/core/rtnetlink.c:3744) [ 45.470788][ T394] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 45.471094][ T394] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 45.471293][ T394] ? 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) [ 45.471472][ T394] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 45.471623][ T394] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 45.471927][ T394] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 45.472123][ T394] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 45.472322][ T394] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 45.472539][ T394] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 45.472718][ T394] ? 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) [ 45.473002][ T394] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 45.473198][ T394] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 45.473384][ T394] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 45.473591][ T394] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 45.473886][ T394] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 45.474069][ T394] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 45.474259][ T394] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 45.474449][ T394] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 45.474743][ T394] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 45.474944][ T394] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 45.475175][ T394] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 45.475369][ T394] ___sys_sendmsg (net/socket.c:2653) [ 45.475657][ T394] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 45.475854][ T394] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 45.476038][ T394] ? __lock_release (kernel/locking/lockdep.c:5435) [ 45.476236][ T394] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 45.476571][ T394] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 45.476753][ T394] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 45.476942][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 45.477161][ T394] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 45.477477][ T394] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 45.477653][ T394] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 45.477853][ T394] ? __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) [ 45.478078][ T394] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 45.478273][ T394] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 45.478498][ T394] RIP: 0033:0x7f48446f87b7 [ 45.478705][ T394] 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) [ 45.479467][ T394] RSP: 002b:00007ffc68a7d358 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 45.479741][ T394] RAX: ffffffffffffffda RBX: 00007ffc68a7da80 RCX: 00007f48446f87b7 [ 45.480123][ T394] RDX: 0000000000000000 RSI: 00007ffc68a7d3c0 RDI: 0000000000000005 [ 45.480411][ T394] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 45.480691][ T394] R10: 00000000226bb910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink