====================================== | [ 174.389476][ T3689] #2: ffffffffab16f640 (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) | [ 174.389825][ T3689] #3: ffff888012b0dd18 (_xmit_ETHER#2){+...}-{3:3}, at: __dev_queue_xmit (./include/linux/netdevice.h:4633 net/core/dev.c:4626) | [ 174.390177][ T3689] | [ 174.390177][ T3689] stack backtrace: [ 174.390424][ T3689] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 174.390426][ T3689] Call Trace: [ 174.390431][ T3689] [ 174.390434][ T3689] dump_stack_lvl (lib/dump_stack.c:123) [ 174.390450][ T3689] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) [ 174.390471][ T3689] 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) [ 174.390484][ T3689] __dev_queue_xmit (net/core/dev.h:340 net/core/dev.c:4631) [ 174.390489][ T3689] ? kmem_cache_alloc_node_noprof (mm/slub.c:4221) [ 174.390500][ T3689] ? __create_object (mm/kmemleak.c:766) [ 174.390520][ T3689] ? __pfx___dev_queue_xmit (net/core/dev.c:4538) [ 174.390527][ T3689] ? __alloc_skb (net/core/skbuff.c:685) [ 174.390539][ T3689] ? __pfx___alloc_skb (net/core/skbuff.c:642) [ 174.390543][ T3689] ? bond_3ad_unbind_slave (drivers/net/bonding/bond_3ad.c:2241) bonding [ 174.390570][ T3689] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 174.390582][ T3689] ? __netdev_alloc_skb (net/core/skbuff.c:733) [ 174.390590][ T3689] ad_lacpdu_send (drivers/net/bonding/bond_3ad.c:929) bonding [ 174.390615][ T3689] bond_3ad_unbind_slave (drivers/net/bonding/bond_3ad.c:2262) bonding [ 174.390646][ T3689] ? __pfx_bond_3ad_unbind_slave (drivers/net/bonding/bond_3ad.c:2230) bonding [ 174.390666][ T3689] ? __pfx_wait_rcu_exp_gp (kernel/rcu/tree_exp.h:486) [ 174.390690][ T3689] __bond_release_one (drivers/net/bonding/bond_main.c:2542) bonding [ 174.390718][ T3689] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 174.390724][ T3689] ? __pfx___bond_release_one (drivers/net/bonding/bond_main.c:2494) bonding [ 174.390744][ T3689] ? __lock_release (kernel/locking/lockdep.c:5527) [ 174.390746][ T3689] ? net_generic (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48) vxlan [ 174.390760][ T3689] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 174.390764][ T3689] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 174.390779][ T3689] ? bond_netpoll_cleanup (drivers/net/bonding/bond_main.c:1480 (discriminator 2)) bonding [ 174.390802][ T3689] ? __pfx_bond_netpoll_cleanup (drivers/net/bonding/bond_main.c:1475) bonding [ 174.390821][ T3689] ? vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4764) vxlan [ 174.390833][ T3689] ? __pfx_vlan_device_event (net/8021q/vlan.c:363) [ 174.390853][ T3689] bond_uninit (drivers/net/bonding/bond_main.c:6075 (discriminator 3)) bonding [ 174.390876][ T3689] ? __pfx_bond_uninit (drivers/net/bonding/bond_main.c:6067) bonding [ 174.390898][ T3689] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) [ 174.390918][ T3689] unregister_netdevice_many_notify (net/core/dev.c:11989) [ 174.390936][ T3689] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11903) [ 174.390939][ T3689] ? rtnl_dellink (net/core/rtnetlink.c:3557) [ 174.390942][ T3689] ? sock_def_readable (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/sock.c:3531) [ 174.390950][ T3689] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 174.390963][ T3689] ? rtnl_is_locked (net/core/rtnetlink.c:169) [ 174.390968][ T3689] ? unregister_netdevice_queue (net/core/dev.c:11875) [ 174.390974][ T3689] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11874) [ 174.390978][ T3689] ? __nla_validate_parse (./include/net/netlink.h:1271 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) [ 174.390997][ T3689] rtnl_dellink (net/core/rtnetlink.c:3523 net/core/rtnetlink.c:3563) [ 174.391005][ T3689] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3529) [ 174.391080][ T3689] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 174.391088][ T3689] ? __lock_release (kernel/locking/lockdep.c:5527) [ 174.391090][ T3689] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) [ 174.391095][ T3689] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 174.391098][ T3689] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 174.391111][ T3689] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) [ 174.391118][ T3689] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3529) [ 174.391123][ T3689] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) [ 174.391131][ T3689] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) [ 174.391136][ T3689] ? 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) [ 174.391139][ T3689] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 174.391152][ T3689] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 174.391160][ T3689] netlink_rcv_skb (net/netlink/af_netlink.c:2534) [ 174.391174][ T3689] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) [ 174.391182][ T3689] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) [ 174.391207][ T3689] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 174.391213][ T3689] ? 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) [ 174.391221][ T3689] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) [ 174.391231][ T3689] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) [ 174.391236][ T3689] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 174.391248][ T3689] netlink_sendmsg (net/netlink/af_netlink.c:1883) [ 174.391258][ T3689] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) [ 174.391277][ T3689] ____sys_sendmsg (net/socket.c:709 net/socket.c:724 net/socket.c:2563) [ 174.391288][ T3689] ? __pfx_____sys_sendmsg (net/socket.c:2509) [ 174.391291][ T3689] ? __pfx_copy_msghdr_from_user (net/socket.c:2489) [ 174.391314][ T3689] ___sys_sendmsg (net/socket.c:2619) [ 174.391323][ T3689] ? __pfx____sys_sendmsg (net/socket.c:2606) [ 174.391333][ T3689] ? kasan_save_stack (mm/kasan/common.c:49) [ 174.391339][ T3689] ? kasan_save_stack (mm/kasan/common.c:48) [ 174.391342][ T3689] ? kasan_record_aux_stack (mm/kasan/generic.c:548) [ 174.391346][ T3689] ? __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) [ 174.391349][ T3689] ? __x64_sys_close (fs/open.c:1583 fs/open.c:1565 fs/open.c:1565) [ 174.391355][ T3689] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 174.391363][ T3689] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 174.391372][ T3689] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 174.391376][ T3689] ? lock_downgrade (kernel/locking/lockdep.c:116 kernel/locking/lockdep.c:5747) [ 174.391384][ T3689] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 174.391391][ T3689] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 174.391399][ T3689] ? __lock_release (kernel/locking/lockdep.c:5527) [ 174.391401][ T3689] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2077 arch/x86/mm/physaddr.c:65) [ 174.391410][ T3689] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 174.391413][ T3689] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 174.391424][ T3689] __sys_sendmsg (net/socket.c:2649) [ 174.391429][ T3689] ? __pfx___sys_sendmsg (net/socket.c:2634) [ 174.391458][ T3689] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 174.391465][ T3689] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 174.391468][ T3689] RIP: 0033:0x7f255b1329a7 [ 174.391473][ T3689] 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) [ 174.391476][ T3689] RSP: 002b:00007fff44779d68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 174.391483][ T3689] RAX: ffffffffffffffda RBX: 00007fff4477a490 RCX: 00007f255b1329a7 [ 174.391485][ T3689] RDX: 0000000000000000 RSI: 00007fff44779dd0 RDI: 0000000000000005 [ 174.391487][ T3689] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 174.391488][ T3689] R10: 00007f255aff0ef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: lockdep_rcu_suspicious:dev_hard_start_xmit:__dev_queue_xmit:ad_lacpdu_send:bond_3ad_unbind_slave