====================================== | [ 163.216167][ T3690] #2: ffffffff9a96f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:901 net/core/dev.c:4555) | [ 163.216532][ T3690] #3: ffff88800b85a118 (_xmit_ETHER#2){+...}-{3:3}, at: __dev_queue_xmit (./include/linux/netdevice.h:4633 net/core/dev.c:4626) | [ 163.216904][ T3690] | [ 163.216904][ T3690] stack backtrace: [ 163.217184][ T3690] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 163.217186][ T3690] Call Trace: [ 163.217188][ T3690] [ 163.217191][ T3690] dump_stack_lvl (lib/dump_stack.c:123) [ 163.217202][ T3690] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) [ 163.217215][ T3690] dev_hard_start_xmit (./include/net/net_namespace.h:418 ./include/linux/netdevice.h:2695 net/core/dev.c:2466 net/core/dev.c:3772 net/core/dev.c:3793) [ 163.217229][ T3690] __dev_queue_xmit (net/core/dev.h:340 net/core/dev.c:4631) [ 163.217233][ T3690] ? kmem_cache_alloc_node_noprof (mm/slub.c:4221) [ 163.217239][ T3690] ? __create_object (mm/kmemleak.c:766) [ 163.217258][ T3690] ? __pfx___dev_queue_xmit (net/core/dev.c:4538) [ 163.217265][ T3690] ? __alloc_skb (net/core/skbuff.c:685) [ 163.217272][ T3690] ? __pfx___alloc_skb (net/core/skbuff.c:642) [ 163.217275][ T3690] ? bond_3ad_unbind_slave (drivers/net/bonding/bond_3ad.c:2241) bonding [ 163.217307][ T3690] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 163.217319][ T3690] ? __netdev_alloc_skb (net/core/skbuff.c:733) [ 163.217327][ T3690] ad_lacpdu_send (drivers/net/bonding/bond_3ad.c:929) bonding [ 163.217352][ T3690] bond_3ad_unbind_slave (drivers/net/bonding/bond_3ad.c:2262) bonding [ 163.217383][ T3690] ? __pfx_bond_3ad_unbind_slave (drivers/net/bonding/bond_3ad.c:2230) bonding [ 163.217403][ T3690] ? __pfx_wait_rcu_exp_gp (kernel/rcu/tree_exp.h:486) [ 163.217424][ T3690] __bond_release_one (drivers/net/bonding/bond_main.c:2537) bonding [ 163.217452][ T3690] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 163.217458][ T3690] ? __pfx___bond_release_one (drivers/net/bonding/bond_main.c:2489) bonding [ 163.217478][ T3690] ? __lock_release (kernel/locking/lockdep.c:5527) [ 163.217481][ T3690] ? net_generic (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48) vxlan [ 163.217495][ T3690] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 163.217499][ T3690] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 163.217514][ T3690] ? bond_netpoll_cleanup (drivers/net/bonding/bond_main.c:1475 (discriminator 2)) bonding [ 163.217537][ T3690] ? __pfx_bond_netpoll_cleanup (drivers/net/bonding/bond_main.c:1470) bonding [ 163.217556][ T3690] ? vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4764) vxlan [ 163.217569][ T3690] ? __pfx_vlan_device_event (net/8021q/vlan.c:363) [ 163.217583][ T3690] bond_uninit (drivers/net/bonding/bond_main.c:6070 (discriminator 3)) bonding [ 163.217605][ T3690] ? __pfx_bond_uninit (drivers/net/bonding/bond_main.c:6062) bonding [ 163.217627][ T3690] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) [ 163.217640][ T3690] unregister_netdevice_many_notify (net/core/dev.c:11989) [ 163.217657][ T3690] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11903) [ 163.217660][ T3690] ? rtnl_dellink (net/core/rtnetlink.c:3557) [ 163.217664][ T3690] ? sock_def_readable (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/sock.c:3531) [ 163.217670][ T3690] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 163.217681][ T3690] ? rtnl_is_locked (net/core/rtnetlink.c:169) [ 163.217685][ T3690] ? unregister_netdevice_queue (net/core/dev.c:11875) [ 163.217691][ T3690] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11874) [ 163.217696][ T3690] ? __nla_validate_parse (./include/net/netlink.h:1271 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) [ 163.217711][ T3690] rtnl_dellink (net/core/rtnetlink.c:3523 net/core/rtnetlink.c:3563) [ 163.217719][ T3690] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3529) [ 163.217794][ T3690] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 163.217802][ T3690] ? __lock_release (kernel/locking/lockdep.c:5527) [ 163.217804][ T3690] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) [ 163.217808][ T3690] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 163.217811][ T3690] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 163.217824][ T3690] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) [ 163.217829][ T3690] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3529) [ 163.217834][ T3690] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) [ 163.217842][ T3690] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) [ 163.217847][ T3690] ? 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:230) [ 163.217850][ T3690] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 163.217863][ T3690] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 163.217871][ T3690] netlink_rcv_skb (net/netlink/af_netlink.c:2534) [ 163.217876][ T3690] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) [ 163.217884][ T3690] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) [ 163.217909][ T3690] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 163.217915][ T3690] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 163.217923][ T3690] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) [ 163.217933][ T3690] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) [ 163.217938][ T3690] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 163.217950][ T3690] netlink_sendmsg (net/netlink/af_netlink.c:1883) [ 163.217960][ T3690] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) [ 163.217979][ T3690] ____sys_sendmsg (net/socket.c:709 net/socket.c:724 net/socket.c:2563) [ 163.217987][ T3690] ? __pfx_____sys_sendmsg (net/socket.c:2509) [ 163.217990][ T3690] ? __pfx_copy_msghdr_from_user (net/socket.c:2489) [ 163.218011][ T3690] ___sys_sendmsg (net/socket.c:2619) [ 163.218020][ T3690] ? __pfx____sys_sendmsg (net/socket.c:2606) [ 163.218030][ T3690] ? kasan_save_stack (mm/kasan/common.c:49) [ 163.218034][ T3690] ? kasan_save_stack (mm/kasan/common.c:48) [ 163.218037][ T3690] ? kasan_record_aux_stack (mm/kasan/generic.c:548) [ 163.218041][ T3690] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:87 ./arch/x86/include/asm/irqflags.h:123 kernel/rcu/tree.c:3067) [ 163.218043][ T3690] ? __x64_sys_close (fs/open.c:1583 fs/open.c:1565 fs/open.c:1565) [ 163.218048][ T3690] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 163.218055][ T3690] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 163.218061][ T3690] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 163.218065][ T3690] ? lock_downgrade (kernel/locking/lockdep.c:116 kernel/locking/lockdep.c:5747) [ 163.218074][ T3690] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 163.218080][ T3690] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 163.218088][ T3690] ? __lock_release (kernel/locking/lockdep.c:5527) [ 163.218090][ T3690] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2077 arch/x86/mm/physaddr.c:65) [ 163.218097][ T3690] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 163.218100][ T3690] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 163.218111][ T3690] __sys_sendmsg (net/socket.c:2649) [ 163.218116][ T3690] ? __pfx___sys_sendmsg (net/socket.c:2634) [ 163.218145][ T3690] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 163.218151][ T3690] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 163.218154][ T3690] RIP: 0033:0x7f37c55b09a7 [ 163.218159][ T3690] 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) [ 163.218162][ T3690] RSP: 002b:00007fff8210feb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 163.218165][ T3690] RAX: ffffffffffffffda RBX: 00007fff821105e0 RCX: 00007f37c55b09a7 [ 163.218167][ T3690] RDX: 0000000000000000 RSI: 00007fff8210ff20 RDI: 0000000000000005 [ 163.218169][ T3690] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 163.218171][ T3690] R10: 00007f37c546eef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: lockdep_rcu_suspicious:dev_hard_start_xmit:__dev_queue_xmit:ad_lacpdu_send:bond_3ad_unbind_slave