====================================== | [ 35.878870][ T331] 1 lock held by ip/331: | [ 35.879097][ T331] #0: ffffffff9ffbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 35.879661][ T331] | [ 35.879661][ T331] stack backtrace: [ 35.880458][ T331] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 35.881119][ T331] Call Trace: [ 35.881349][ T331] [ 35.881504][ T331] dump_stack_lvl (lib/dump_stack.c:122) [ 35.881812][ T331] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 35.882109][ T331] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 35.882589][ T331] 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 [ 35.883015][ T331] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 35.883361][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.883724][ T331] br_add_if (net/bridge/br_if.c:692) bridge [ 35.884076][ T331] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 35.884362][ T331] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 35.884731][ T331] do_setlink (net/core/rtnetlink.c:2907) [ 35.885022][ T331] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 35.885320][ T331] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 35.885617][ T331] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 35.885904][ T331] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 35.886197][ T331] ? __kernel_text_address (kernel/extable.c:79) [ 35.886488][ T331] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 35.886781][ T331] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 35.887146][ T331] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 35.887462][ T331] ? stack_trace_save (kernel/stacktrace.c:123) [ 35.887759][ T331] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 35.888056][ T331] ? __pfx_validate_nla (lib/nlattr.c:396) [ 35.888346][ T331] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 35.888573][ T331] ? kasan_save_stack (mm/kasan/common.c:49) [ 35.888872][ T331] ? __nla_validate_parse (lib/nlattr.c:638) [ 35.889176][ T331] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 35.889483][ T331] ? 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) [ 35.889776][ T331] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 35.890075][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.890452][ T331] ? __create_object (mm/kmemleak.c:751) [ 35.890746][ T331] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 35.891103][ T331] rtnl_newlink (net/core/rtnetlink.c:3744) [ 35.891263][ T331] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 35.891457][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 35.891638][ T331] ? 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) [ 35.891824][ T331] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 35.891966][ T331] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 35.892157][ T331] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 35.892356][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 35.892544][ T331] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 35.892740][ T331] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 35.892927][ T331] ? 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) [ 35.893112][ T331] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 35.893327][ T331] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 35.893509][ T331] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 35.893701][ T331] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 35.893901][ T331] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 35.894079][ T331] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 35.894266][ T331] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 35.894454][ T331] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 35.894643][ T331] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 35.894821][ T331] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 35.895047][ T331] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 35.895244][ T331] ___sys_sendmsg (net/socket.c:2653) [ 35.895432][ T331] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 35.895615][ T331] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 35.895804][ T331] ? __lock_release (kernel/locking/lockdep.c:5435) [ 35.895984][ T331] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 35.896213][ T331] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 35.896399][ T331] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 35.896589][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.896822][ T331] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 35.897016][ T331] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 35.897198][ T331] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 35.897383][ T331] ? __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) [ 35.897586][ T331] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 35.897776][ T331] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 35.898008][ T331] RIP: 0033:0x7f6d77b197b7 [ 35.898203][ T331] 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) [ 35.898843][ T331] RSP: 002b:00007ffd802789f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 35.899128][ T331] RAX: ffffffffffffffda RBX: 00007ffd80279120 RCX: 00007f6d77b197b7 [ 35.899405][ T331] RDX: 0000000000000000 RSI: 00007ffd80278a60 RDI: 0000000000000005 [ 35.899690][ T331] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 35.899967][ T331] R10: 0000000030aa4910 R11: 0000000000000246 R12: 0000000000000004 [ 35.900247][ T331] R13: 0000000066bea4ea R14: 0000000000496600 R15: 0000000000000000 | [ 35.903685][ T331] 1 lock held by ip/331: | [ 35.903834][ T331] #0: ffffffff9ffbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 35.904172][ T331] | [ 35.904172][ T331] stack backtrace: [ 35.904677][ T331] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 35.905093][ T331] Call Trace: [ 35.905234][ T331] [ 35.905333][ T331] dump_stack_lvl (lib/dump_stack.c:122) [ 35.905537][ T331] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 35.905727][ T331] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 35.905997][ T331] 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 [ 35.906261][ T331] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 35.906481][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.906717][ T331] br_add_if (net/bridge/br_if.c:692) bridge [ 35.906933][ T331] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 35.907122][ T331] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 35.907356][ T331] do_setlink (net/core/rtnetlink.c:2907) [ 35.907542][ T331] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 35.907723][ T331] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 35.907910][ T331] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 35.908091][ T331] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 35.908291][ T331] ? __kernel_text_address (kernel/extable.c:79) [ 35.908477][ T331] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 35.908655][ T331] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 35.908892][ T331] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 35.909095][ T331] ? stack_trace_save (kernel/stacktrace.c:123) [ 35.909278][ T331] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 35.909465][ T331] ? __pfx_validate_nla (lib/nlattr.c:396) [ 35.909647][ T331] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 35.909826][ T331] ? kasan_save_stack (mm/kasan/common.c:49) [ 35.910014][ T331] ? __nla_validate_parse (lib/nlattr.c:638) [ 35.910203][ T331] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 35.910399][ T331] ? 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) [ 35.910582][ T331] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 35.910797][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.911038][ T331] ? __create_object (mm/kmemleak.c:751) [ 35.911235][ T331] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 35.911479][ T331] rtnl_newlink (net/core/rtnetlink.c:3744) [ 35.911643][ T331] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 35.911867][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 35.912104][ T331] ? 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) [ 35.912333][ T331] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 35.912524][ T331] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 35.912752][ T331] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 35.912984][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 35.913218][ T331] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 35.913478][ T331] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 35.913712][ T331] ? 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) [ 35.913927][ T331] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 35.914123][ T331] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 35.914307][ T331] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 35.914496][ T331] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 35.914683][ T331] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 35.914876][ T331] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 35.915068][ T331] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 35.915261][ T331] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 35.915444][ T331] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 35.915623][ T331] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 35.915846][ T331] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 35.916046][ T331] ___sys_sendmsg (net/socket.c:2653) [ 35.916229][ T331] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 35.916411][ T331] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 35.916605][ T331] ? __lock_release (kernel/locking/lockdep.c:5435) [ 35.916788][ T331] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 35.917010][ T331] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 35.917194][ T331] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 35.917383][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.917614][ T331] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 35.917804][ T331] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 35.917989][ T331] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 35.918175][ T331] ? __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) [ 35.918383][ T331] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 35.918569][ T331] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 35.918798][ T331] RIP: 0033:0x7f6d77b197b7 [ 35.918988][ T331] 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) [ 35.919624][ T331] RSP: 002b:00007ffd802789f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 35.919899][ T331] RAX: ffffffffffffffda RBX: 00007ffd80279120 RCX: 00007f6d77b197b7 [ 35.920179][ T331] RDX: 0000000000000000 RSI: 00007ffd80278a60 RDI: 0000000000000005 [ 35.920457][ T331] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 35.920739][ T331] R10: 0000000030aa4910 R11: 0000000000000246 R12: 0000000000000004 [ 35.921036][ T331] R13: 0000000066bea4ea R14: 0000000000496600 R15: 0000000000000000 | [ 35.923450][ T331] 1 lock held by ip/331: | [ 35.923599][ T331] #0: ffffffff9ffbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 35.923941][ T331] | [ 35.923941][ T331] stack backtrace: [ 35.924437][ T331] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 35.924840][ T331] Call Trace: [ 35.924980][ T331] [ 35.925076][ T331] dump_stack_lvl (lib/dump_stack.c:122) [ 35.925270][ T331] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 35.925460][ T331] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 35.925726][ T331] 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 [ 35.925988][ T331] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 35.926384][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.926616][ T331] br_add_if (net/bridge/br_if.c:692) bridge [ 35.926830][ T331] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 35.927012][ T331] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 35.927346][ T331] do_setlink (net/core/rtnetlink.c:2907) [ 35.927530][ T331] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 35.927712][ T331] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 35.927894][ T331] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 35.928172][ T331] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 35.928357][ T331] ? __kernel_text_address (kernel/extable.c:79) [ 35.928538][ T331] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 35.928722][ T331] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 35.929043][ T331] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 35.929236][ T331] ? stack_trace_save (kernel/stacktrace.c:123) [ 35.929420][ T331] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 35.929600][ T331] ? __pfx_validate_nla (lib/nlattr.c:396) [ 35.929879][ T331] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 35.930021][ T331] ? kasan_save_stack (mm/kasan/common.c:49) [ 35.930209][ T331] ? __nla_validate_parse (lib/nlattr.c:638) [ 35.930403][ T331] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 35.930590][ T331] ? 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) [ 35.930967][ T331] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 35.931166][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.931391][ T331] ? __create_object (mm/kmemleak.c:751) [ 35.931576][ T331] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 35.931858][ T331] rtnl_newlink (net/core/rtnetlink.c:3744) [ 35.931999][ T331] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 35.932188][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 35.932375][ T331] ? 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) [ 35.932653][ T331] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 35.932801][ T331] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 35.932986][ T331] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 35.933172][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 35.933358][ T331] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 35.933660][ T331] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 35.933842][ T331] ? 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) [ 35.934037][ T331] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 35.934223][ T331] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 35.934416][ T331] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 35.934601][ T331] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 35.934807][ T331] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 35.934986][ T331] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 35.935269][ T331] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 35.935467][ T331] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 35.935658][ T331] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 35.935837][ T331] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 35.936159][ T331] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 35.936352][ T331] ___sys_sendmsg (net/socket.c:2653) [ 35.936534][ T331] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 35.936716][ T331] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 35.936997][ T331] ? __lock_release (kernel/locking/lockdep.c:5435) [ 35.937179][ T331] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 35.937416][ T331] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 35.937599][ T331] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 35.937885][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.938116][ T331] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 35.938306][ T331] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 35.938492][ T331] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 35.938774][ T331] ? __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) [ 35.938977][ T331] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 35.939171][ T331] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 35.939405][ T331] RIP: 0033:0x7f6d77b197b7 [ 35.939694][ T331] 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) [ 35.940348][ T331] RSP: 002b:00007ffd802789f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 35.940730][ T331] RAX: ffffffffffffffda RBX: 00007ffd80279120 RCX: 00007f6d77b197b7 [ 35.941032][ T331] RDX: 0000000000000000 RSI: 00007ffd80278a60 RDI: 0000000000000005 [ 35.941309][ T331] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 35.941679][ T331] R10: 0000000030aa4910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink