====================================== | [1278.050671][T19360] #2: ffffffffb456f640 (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) | [1278.051027][T19360] #3: ffff888005ab9b18 (_xmit_ETHER#2){+...}-{3:3}, at: __dev_queue_xmit (./include/linux/netdevice.h:4633 net/core/dev.c:4626) | [ 1278.051392][T19360] | [ 1278.051392][T19360] stack backtrace: [ 1278.051643][T19360] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1278.051646][T19360] Call Trace: [ 1278.051648][T19360] [1278.051651][T19360] dump_stack_lvl (lib/dump_stack.c:123) [1278.051661][T19360] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) [1278.051679][T19360] 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) [1278.051691][T19360] __dev_queue_xmit (net/core/dev.h:340 net/core/dev.c:4631) [1278.051696][T19360] ? kmem_cache_alloc_node_noprof (mm/slub.c:4221) [1278.051702][T19360] ? __create_object (mm/kmemleak.c:766) [1278.051721][T19360] ? __pfx___dev_queue_xmit (net/core/dev.c:4538) [1278.051728][T19360] ? __alloc_skb (net/core/skbuff.c:685) [1278.051738][T19360] ? __pfx___alloc_skb (net/core/skbuff.c:642) [1278.051741][T19360] ? bond_3ad_unbind_slave (drivers/net/bonding/bond_3ad.c:2241) bonding [1278.051769][T19360] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1278.051782][T19360] ? __netdev_alloc_skb (net/core/skbuff.c:733) [1278.051790][T19360] ad_lacpdu_send (drivers/net/bonding/bond_3ad.c:929) bonding [1278.051815][T19360] bond_3ad_unbind_slave (drivers/net/bonding/bond_3ad.c:2262) bonding [1278.051846][T19360] ? __pfx_bond_3ad_unbind_slave (drivers/net/bonding/bond_3ad.c:2230) bonding [1278.051866][T19360] ? __pfx_wait_rcu_exp_gp (kernel/rcu/tree_exp.h:486) [1278.051889][T19360] __bond_release_one (drivers/net/bonding/bond_main.c:2542) bonding [1278.051916][T19360] ? find_held_lock (kernel/locking/lockdep.c:5341) [1278.051922][T19360] ? __pfx___bond_release_one (drivers/net/bonding/bond_main.c:2494) bonding [1278.051943][T19360] ? __lock_release (kernel/locking/lockdep.c:5527) [1278.051946][T19360] ? net_generic (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48) vxlan [1278.051960][T19360] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [1278.051963][T19360] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1278.051978][T19360] ? bond_netpoll_cleanup (drivers/net/bonding/bond_main.c:1480 (discriminator 2)) bonding [1278.052001][T19360] ? __pfx_bond_netpoll_cleanup (drivers/net/bonding/bond_main.c:1475) bonding [1278.052020][T19360] ? vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4764) vxlan [1278.052033][T19360] ? __pfx_vlan_device_event (net/8021q/vlan.c:363) [1278.052048][T19360] bond_uninit (drivers/net/bonding/bond_main.c:6075 (discriminator 3)) bonding [1278.052072][T19360] ? __pfx_bond_uninit (drivers/net/bonding/bond_main.c:6067) bonding [1278.052094][T19360] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) [1278.052108][T19360] unregister_netdevice_many_notify (net/core/dev.c:11989) [1278.052125][T19360] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11903) [1278.052128][T19360] ? rtnl_dellink (net/core/rtnetlink.c:3557) [1278.052130][T19360] ? sock_def_readable (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/sock.c:3531) [1278.052137][T19360] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [1278.052148][T19360] ? rtnl_is_locked (net/core/rtnetlink.c:169) [1278.052152][T19360] ? unregister_netdevice_queue (net/core/dev.c:11875) [1278.052158][T19360] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11874) [1278.052163][T19360] ? __nla_validate_parse (./include/net/netlink.h:1271 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) [1278.052179][T19360] rtnl_dellink (net/core/rtnetlink.c:3523 net/core/rtnetlink.c:3563) [1278.052188][T19360] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3529) [1278.052262][T19360] ? find_held_lock (kernel/locking/lockdep.c:5341) [1278.052270][T19360] ? __lock_release (kernel/locking/lockdep.c:5527) [1278.052272][T19360] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) [1278.052277][T19360] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [1278.052280][T19360] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1278.052293][T19360] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) [1278.052298][T19360] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3529) [1278.052303][T19360] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) [1278.052311][T19360] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) [1278.052316][T19360] ? 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) [1278.052319][T19360] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [1278.052331][T19360] ? __lock_acquire (kernel/locking/lockdep.c:5228) [1278.052339][T19360] netlink_rcv_skb (net/netlink/af_netlink.c:2534) [1278.052345][T19360] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) [1278.052353][T19360] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) [1278.052378][T19360] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [1278.052384][T19360] ? 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) [1278.052393][T19360] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) [1278.052402][T19360] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) [1278.052407][T19360] ? find_held_lock (kernel/locking/lockdep.c:5341) [1278.052419][T19360] netlink_sendmsg (net/netlink/af_netlink.c:1883) [1278.052429][T19360] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) [1278.052448][T19360] ____sys_sendmsg (net/socket.c:709 net/socket.c:724 net/socket.c:2563) [1278.052456][T19360] ? __pfx_____sys_sendmsg (net/socket.c:2509) [1278.052460][T19360] ? __pfx_copy_msghdr_from_user (net/socket.c:2489) [1278.052481][T19360] ___sys_sendmsg (net/socket.c:2619) [1278.052490][T19360] ? __pfx____sys_sendmsg (net/socket.c:2606) [1278.052500][T19360] ? kasan_save_stack (mm/kasan/common.c:49) [1278.052504][T19360] ? kasan_save_stack (mm/kasan/common.c:48) [1278.052506][T19360] ? kasan_record_aux_stack (mm/kasan/generic.c:548) [1278.052510][T19360] ? __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) [1278.052513][T19360] ? __x64_sys_close (fs/open.c:1583 fs/open.c:1565 fs/open.c:1565) [1278.052518][T19360] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [1278.052524][T19360] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [1278.052529][T19360] ? __lock_acquire (kernel/locking/lockdep.c:5228) [1278.052534][T19360] ? lock_downgrade (kernel/locking/lockdep.c:116 kernel/locking/lockdep.c:5747) [1278.052542][T19360] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [1278.052548][T19360] ? find_held_lock (kernel/locking/lockdep.c:5341) [1278.052556][T19360] ? __lock_release (kernel/locking/lockdep.c:5527) [1278.052558][T19360] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2077 arch/x86/mm/physaddr.c:65) [1278.052564][T19360] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [1278.052567][T19360] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1278.052578][T19360] __sys_sendmsg (net/socket.c:2649) [1278.052583][T19360] ? __pfx___sys_sendmsg (net/socket.c:2634) [1278.052612][T19360] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [1278.052618][T19360] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 1278.052621][T19360] RIP: 0033:0x7f9c4db229a7 [ 1278.052626][T19360] 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) [ 1278.052628][T19360] RSP: 002b:00007ffca6332378 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1278.052633][T19360] RAX: ffffffffffffffda RBX: 00007ffca6332aa0 RCX: 00007f9c4db229a7 [ 1278.052635][T19360] RDX: 0000000000000000 RSI: 00007ffca63323e0 RDI: 0000000000000005 [ 1278.052636][T19360] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 1278.052638][T19360] R10: 00007f9c4d9e0ef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: lockdep_rcu_suspicious:dev_hard_start_xmit:__dev_queue_xmit:ad_lacpdu_send:bond_3ad_unbind_slave