====================================== | [ 35.746285][ T337] 1 lock held by ip/337: | [ 35.746418][ T337] #0: ffffffffac3bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 35.746741][ T337] | [ 35.746741][ T337] stack backtrace: [ 35.747236][ T337] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 35.747611][ T337] Call Trace: [ 35.747745][ T337] [ 35.747835][ T337] dump_stack_lvl (lib/dump_stack.c:122) [ 35.748013][ T337] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 35.748181][ T337] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 35.748465][ T337] 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 [ 35.748721][ T337] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 35.748919][ T337] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.749131][ T337] br_add_if (net/bridge/br_if.c:692) bridge [ 35.749333][ T337] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 35.749500][ T337] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 35.749710][ T337] do_setlink (net/core/rtnetlink.c:2907) [ 35.749879][ T337] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 35.750056][ T337] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 35.750224][ T337] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 35.750390][ T337] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 35.750559][ T337] ? __kernel_text_address (kernel/extable.c:79) [ 35.750729][ T337] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 35.750895][ T337] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 35.751104][ T337] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 35.751297][ T337] ? stack_trace_save (kernel/stacktrace.c:123) [ 35.751468][ T337] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 35.751642][ T337] ? __pfx_validate_nla (lib/nlattr.c:396) [ 35.751812][ T337] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 35.751945][ T337] ? kasan_save_stack (mm/kasan/common.c:49) [ 35.752120][ T337] ? __nla_validate_parse (lib/nlattr.c:638) [ 35.752294][ T337] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 35.752475][ T337] ? 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) [ 35.752643][ T337] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 35.752825][ T337] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.753038][ T337] ? __create_object (mm/kmemleak.c:751) [ 35.753209][ T337] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 35.753381][ T337] rtnl_newlink (net/core/rtnetlink.c:3744) [ 35.753510][ T337] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 35.753682][ T337] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 35.753849][ T337] ? 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) [ 35.754015][ T337] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 35.754151][ T337] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 35.754322][ T337] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 35.754491][ T337] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 35.754661][ T337] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 35.754852][ T337] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 35.755019][ T337] ? 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) [ 35.755190][ T337] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 35.755362][ T337] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 35.755535][ T337] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 35.755708][ T337] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 35.755885][ T337] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 35.756060][ T337] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 35.756240][ T337] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 35.756426][ T337] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 35.756597][ T337] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 35.756767][ T337] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 35.756980][ T337] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 35.757160][ T337] ___sys_sendmsg (net/socket.c:2653) [ 35.757336][ T337] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 35.757505][ T337] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 35.757675][ T337] ? __lock_release (kernel/locking/lockdep.c:5435) [ 35.757840][ T337] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 35.758047][ T337] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 35.758217][ T337] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 35.758400][ T337] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.758634][ T337] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 35.758812][ T337] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 35.758980][ T337] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 35.759148][ T337] ? __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) [ 35.759335][ T337] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 35.759506][ T337] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 35.759715][ T337] RIP: 0033:0x7f400497d7b7 [ 35.759893][ T337] 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) [ 35.760470][ T337] RSP: 002b:00007fff519a1558 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 35.760723][ T337] RAX: ffffffffffffffda RBX: 00007fff519a1c80 RCX: 00007f400497d7b7 [ 35.760975][ T337] RDX: 0000000000000000 RSI: 00007fff519a15c0 RDI: 0000000000000005 [ 35.761233][ T337] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 35.761483][ T337] R10: 0000000030897910 R11: 0000000000000246 R12: 0000000000000004 [ 35.761733][ T337] R13: 0000000066bea284 R14: 0000000000496600 R15: 0000000000000000 | [ 35.764297][ T337] 1 lock held by ip/337: | [ 35.764439][ T337] #0: ffffffffac3bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 35.764745][ T337] | [ 35.764745][ T337] stack backtrace: [ 35.765213][ T337] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 35.765588][ T337] Call Trace: [ 35.765716][ T337] [ 35.765808][ T337] dump_stack_lvl (lib/dump_stack.c:122) [ 35.765983][ T337] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 35.766152][ T337] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 35.766398][ T337] 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 [ 35.766661][ T337] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 35.766878][ T337] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.767094][ T337] br_add_if (net/bridge/br_if.c:692) bridge [ 35.767297][ T337] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 35.767465][ T337] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 35.767677][ T337] do_setlink (net/core/rtnetlink.c:2907) [ 35.767846][ T337] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 35.768014][ T337] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 35.768184][ T337] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 35.768372][ T337] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 35.768544][ T337] ? __kernel_text_address (kernel/extable.c:79) [ 35.768721][ T337] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 35.768889][ T337] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 35.769100][ T337] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 35.769294][ T337] ? stack_trace_save (kernel/stacktrace.c:123) [ 35.769463][ T337] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 35.769653][ T337] ? __pfx_validate_nla (lib/nlattr.c:396) [ 35.769827][ T337] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 35.769976][ T337] ? kasan_save_stack (mm/kasan/common.c:49) [ 35.770153][ T337] ? __nla_validate_parse (lib/nlattr.c:638) [ 35.770326][ T337] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 35.770504][ T337] ? 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) [ 35.770675][ T337] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 35.770848][ T337] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.771077][ T337] ? __create_object (mm/kmemleak.c:751) [ 35.771253][ T337] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 35.771437][ T337] rtnl_newlink (net/core/rtnetlink.c:3744) [ 35.771571][ T337] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 35.771742][ T337] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 35.771910][ T337] ? 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) [ 35.772078][ T337] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 35.772223][ T337] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 35.772395][ T337] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 35.772571][ T337] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 35.772748][ T337] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 35.772932][ T337] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 35.773100][ T337] ? 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) [ 35.773273][ T337] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 35.773446][ T337] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 35.773617][ T337] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 35.773800][ T337] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 35.773975][ T337] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 35.774148][ T337] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 35.774320][ T337] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 35.774496][ T337] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 35.774667][ T337] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 35.774836][ T337] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 35.775052][ T337] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 35.775231][ T337] ___sys_sendmsg (net/socket.c:2653) [ 35.775408][ T337] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 35.775584][ T337] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 35.775756][ T337] ? __lock_release (kernel/locking/lockdep.c:5435) [ 35.775924][ T337] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 35.776131][ T337] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 35.776304][ T337] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 35.776477][ T337] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.776688][ T337] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 35.776867][ T337] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 35.777036][ T337] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 35.777202][ T337] ? __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) [ 35.777391][ T337] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 35.777561][ T337] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 35.777771][ T337] RIP: 0033:0x7f400497d7b7 [ 35.778092][ T337] 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) [ 35.778788][ T337] RSP: 002b:00007fff519a1558 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 35.779050][ T337] RAX: ffffffffffffffda RBX: 00007fff519a1c80 RCX: 00007f400497d7b7 [ 35.779300][ T337] RDX: 0000000000000000 RSI: 00007fff519a15c0 RDI: 0000000000000005 [ 35.779644][ T337] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 35.779906][ T337] R10: 0000000030897910 R11: 0000000000000246 R12: 0000000000000004 [ 35.780162][ T337] R13: 0000000066bea284 R14: 0000000000496600 R15: 0000000000000000 | [ 35.782493][ T337] 1 lock held by ip/337: | [ 35.782624][ T337] #0: ffffffffac3bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 35.783043][ T337] | [ 35.783043][ T337] stack backtrace: [ 35.783510][ T337] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 35.783972][ T337] Call Trace: [ 35.784107][ T337] [ 35.784201][ T337] dump_stack_lvl (lib/dump_stack.c:122) [ 35.784375][ T337] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 35.784641][ T337] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 35.784888][ T337] 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 [ 35.785132][ T337] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 35.785332][ T337] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.785646][ T337] br_add_if (net/bridge/br_if.c:692) bridge [ 35.785853][ T337] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 35.786021][ T337] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 35.786232][ T337] do_setlink (net/core/rtnetlink.c:2907) [ 35.786401][ T337] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 35.786570][ T337] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 35.786737][ T337] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 35.786904][ T337] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 35.787169][ T337] ? __kernel_text_address (kernel/extable.c:79) [ 35.787339][ T337] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 35.787507][ T337] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 35.787716][ T337] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 35.787993][ T337] ? stack_trace_save (kernel/stacktrace.c:123) [ 35.788161][ T337] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 35.788330][ T337] ? __pfx_validate_nla (lib/nlattr.c:396) [ 35.788498][ T337] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 35.788728][ T337] ? kasan_save_stack (mm/kasan/common.c:49) [ 35.788904][ T337] ? __nla_validate_parse (lib/nlattr.c:638) [ 35.789081][ T337] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 35.789256][ T337] ? 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) [ 35.789428][ T337] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 35.789707][ T337] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.789916][ T337] ? __create_object (mm/kmemleak.c:751) [ 35.790087][ T337] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 35.790266][ T337] rtnl_newlink (net/core/rtnetlink.c:3744) [ 35.790410][ T337] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 35.790586][ T337] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 35.790755][ T337] ? 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) [ 35.790922][ T337] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 35.791150][ T337] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 35.791322][ T337] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 35.791489][ T337] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 35.791659][ T337] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 35.791844][ T337] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 35.792112][ T337] ? 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) [ 35.792285][ T337] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 35.792458][ T337] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 35.792627][ T337] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 35.792900][ T337] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 35.793071][ T337] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 35.793237][ T337] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 35.793406][ T337] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 35.793680][ T337] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 35.793851][ T337] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 35.794017][ T337] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 35.794229][ T337] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 35.794505][ T337] ___sys_sendmsg (net/socket.c:2653) [ 35.794676][ T337] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 35.794848][ T337] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 35.795019][ T337] ? __lock_release (kernel/locking/lockdep.c:5435) [ 35.795194][ T337] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 35.795408][ T337] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 35.795579][ T337] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 35.795753][ T337] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 35.796058][ T337] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 35.796234][ T337] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 35.796404][ T337] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 35.796590][ T337] ? __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) [ 35.796883][ T337] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 35.797054][ T337] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 35.797263][ T337] RIP: 0033:0x7f400497d7b7 [ 35.797437][ T337] 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) [ 35.798122][ T337] RSP: 002b:00007fff519a1558 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 35.798381][ T337] RAX: ffffffffffffffda RBX: 00007fff519a1c80 RCX: 00007f400497d7b7 [ 35.798758][ T337] RDX: 0000000000000000 RSI: 00007fff519a15c0 RDI: 0000000000000005 [ 35.799007][ T337] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 35.799253][ T337] R10: 0000000030897910 R11: 0000000000000246 R12: 0000000000000004 [ 35.799506][ T337] R13: 0000000066bea284 R14: 0000000000496600 R15: 0000000000000000 | [ 37.995682][ T354] 1 lock held by bridge/354: | [ 37.995869][ T354] #0: ffffffffac3bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 37.996196][ T354] | [ 37.996196][ T354] stack backtrace: [ 37.996677][ T354] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 37.997063][ T354] Call Trace: [ 37.997202][ T354] [ 37.997294][ T354] dump_stack_lvl (lib/dump_stack.c:122) [ 37.997477][ T354] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 37.997658][ T354] br_get_link_af_size_filtered (net/bridge/br_private.h:1605 net/bridge/br_private.h:1602 net/bridge/br_netlink.c:110) bridge [ 37.997921][ T354] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 37.998131][ T354] br_setlink (net/bridge/br_netlink.c:669 net/bridge/br_netlink.c:1136) bridge [ 37.998339][ T354] ? __pfx_br_setlink (net/bridge/br_netlink.c:1085) bridge [ 37.998566][ T354] ? lock_acquire.part.0 (kernel/locking/lockdep.c:466 kernel/locking/lockdep.c:5761) [ 37.998753][ T354] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) [ 37.998932][ T354] ? 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) [ 37.999114][ T354] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:129) [ 37.999294][ T354] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:104) [ 37.999516][ T354] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) [ 37.999690][ T354] ? lock_acquire (kernel/locking/lockdep.c:5732) [ 37.999867][ T354] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 52)) [ 38.000050][ T354] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:618 kernel/locking/mutex.c:752) [ 38.000229][ T354] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 38.000403][ T354] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) [ 38.000581][ T354] ? __pfx___mutex_lock (kernel/locking/mutex.c:751) [ 38.000755][ T354] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 38.000931][ T354] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5724) [ 38.001107][ T354] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 38.001286][ T354] rtnl_bridge_setlink (net/core/rtnetlink.c:5225) [ 38.001466][ T354] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 38.001645][ T354] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 38.001824][ T354] ? 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) [ 38.002000][ T354] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 38.002137][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 38.002314][ T354] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 38.002491][ T354] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 38.002669][ T354] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 38.002866][ T354] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 38.003042][ T354] ? 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) [ 38.003221][ T354] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 38.003390][ T354] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 38.003555][ T354] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 38.003724][ T354] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 38.003897][ T354] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 38.004062][ T354] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 38.004238][ T354] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 38.004409][ T354] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 38.004576][ T354] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 38.004740][ T354] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 38.004943][ T354] ? 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) [ 38.005109][ T354] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3758 kernel/locking/lockdep.c:3781 kernel/locking/lockdep.c:3836) [ 38.005279][ T354] ___sys_sendmsg (net/socket.c:2653) [ 38.005443][ T354] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 38.005612][ T354] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 38.005788][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 38.005964][ T354] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 38.006131][ T354] ? __lock_release (kernel/locking/lockdep.c:5435) [ 38.006295][ T354] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 38.006457][ T354] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 38.006626][ T354] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 38.006794][ T354] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 38.006992][ T354] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 38.007172][ T354] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 38.007389][ T354] RIP: 0033:0x7fa1fef907b7 [ 38.007567][ T354] 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) [ 38.008171][ T354] RSP: 002b:00007fffc93d2c08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 38.008426][ T354] RAX: ffffffffffffffda RBX: 000000000000ffff RCX: 00007fa1fef907b7 [ 38.008678][ T354] RDX: 0000000000000000 RSI: 00007fffc93d2c70 RDI: 0000000000000005 [ 38.008947][ T354] RBP: 00007fffc93d2d60 R08: 0000000000000034 R09: 0000000000000000 [ 38.009194][ T354] R10: 00007fa1fee49708 R11: 0000000000000246 R12: 000000000000022b Finger prints: lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_setlink:rtnl_bridge_setlink lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink