====================================== | [ 21.290792][ T325] ------------[ cut here ]------------ | [ 21.291010][ T325] DEBUG_LOCKS_WARN_ON(1) | [ 21.291037][ T325] WARNING: CPU: 2 PID: 325 at kernel/locking/lockdep.c:4976 lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7)) | [ 21.291630][ T325] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel bridge stp llc vrf veth [ 21.292372][ T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.292634][ T325] RIP: 0010:lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7)) [ 21.292900][ T325] Code: ff 4c 89 e6 48 c7 c7 28 3d 9d ba e8 ee c9 01 00 e9 3d ff ff ff 90 48 c7 c6 ee ff 96 ba 48 c7 c7 3b fc 96 ba e8 c5 89 e9 ff 90 <0f> 0b 90 90 e9 47 ff ff ff 90 48 c7 c6 2a 01 97 ba 48 c7 c7 3b fc All code ======== 0: ff 4c 89 e6 decl -0x1a(%rcx,%rcx,4) 4: 48 c7 c7 28 3d 9d ba mov $0xffffffffba9d3d28,%rdi b: e8 ee c9 01 00 call 0x1c9fe 10: e9 3d ff ff ff jmp 0xffffffffffffff52 15: 90 nop 16: 48 c7 c6 ee ff 96 ba mov $0xffffffffba96ffee,%rsi 1d: 48 c7 c7 3b fc 96 ba mov $0xffffffffba96fc3b,%rdi 24: e8 c5 89 e9 ff call 0xffffffffffe989ee 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: e9 47 ff ff ff jmp 0xffffffffffffff7a 33: 90 nop 34: 48 c7 c6 2a 01 97 ba mov $0xffffffffba97012a,%rsi 3b: 48 rex.W 3c: c7 .byte 0xc7 3d: c7 (bad) 3e: 3b fc cmp %esp,%edi Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: e9 47 ff ff ff jmp 0xffffffffffffff50 9: 90 nop a: 48 c7 c6 2a 01 97 ba mov $0xffffffffba97012a,%rsi 11: 48 rex.W 12: c7 .byte 0xc7 13: c7 (bad) 14: 3b fc cmp %esp,%edi [ 21.293600][ T325] RSP: 0018:ffffc90000557018 EFLAGS: 00010282 [ 21.293864][ T325] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 21.294181][ T325] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001 [ 21.294482][ T325] RBP: ffffe8ffffc04770 R08: 0000000000000000 R09: fffffbfff75be10c [ 21.294788][ T325] R10: 0000000000000003 R11: 0000000000000004 R12: ffff88800bb42e60 [ 21.295098][ T325] R13: 0000000000000000 R14: ffffe8ffffc04558 R15: ffffe8ffffc04500 [ 21.295405][ T325] FS: 00007fbbd974a800(0000) GS:ffff88807a0f2000(0000) knlGS:0000000000000000 [ 21.295749][ T325] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.296018][ T325] CR2: 00007efe3c7715c0 CR3: 000000000d1f0003 CR4: 0000000000772ef0 [ 21.296339][ T325] PKRU: 55555554 [ 21.296509][ T325] Call Trace: [ 21.296675][ T325] [ 21.296797][ T325] gro_cells_init (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-atomic.h:28 net/core/gro_cells.c:93 net/core/gro_cells.c:78) [ 21.297028][ T325] vxlan_init (drivers/net/vxlan/vxlan_core.c:2899) vxlan [ 21.297257][ T325] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:69 mm/kasan/common.c:78) [ 21.297476][ T325] register_netdevice (net/core/dev.c:11309) [ 21.297691][ T325] ? vxlan_vni_in_use (drivers/net/vxlan/vxlan_core.c:3680) vxlan [ 21.297908][ T325] ? unregister_netdevice_queue (net/core/dev.c:11272) [ 21.298181][ T325] ? vxlan_config_validate (drivers/net/vxlan/vxlan_core.c:3848) vxlan [ 21.298450][ T325] ? vxlan_config_apply (drivers/net/vxlan/vxlan_core.c:3885) vxlan [ 21.298713][ T325] __vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:3948) vxlan [ 21.298933][ T325] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 21.299159][ T325] ? vxlan_changelink (drivers/net/vxlan/vxlan_core.c:3934) vxlan [ 21.299414][ T325] vxlan_newlink (drivers/net/vxlan/vxlan_core.c:4370) vxlan [ 21.299632][ T325] ? vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:4370) vxlan [ 21.299852][ T325] ? rtnl_create_link (net/core/rtnetlink.c:3657) [ 21.300071][ T325] rtnl_newlink_create (net/core/rtnetlink.c:3843) [ 21.300285][ T325] ? rtnl_create_link (net/core/rtnetlink.c:3806) [ 21.300491][ T325] ? __dev_get_by_name (net/core/dev.c:865) [ 21.300703][ T325] ? rtnl_dev_get (net/core/rtnetlink.c:3419) [ 21.300914][ T325] ? rtnl_validate_mdb_entry_del_bulk (net/core/rtnetlink.c:3419) [ 21.301180][ T325] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 21.301383][ T325] ? reacquire_held_locks (kernel/locking/lockdep.c:5385) [ 21.301588][ T325] __rtnl_newlink (net/core/rtnetlink.c:3957) [ 21.301794][ T325] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 21.301999][ T325] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 21.302223][ T325] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 21.302428][ T325] ? __lock_release (kernel/locking/lockdep.c:5536) [ 21.302632][ T325] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 21.302835][ T325] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 21.303037][ T325] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 21.303274][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 21.303490][ T325] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 21.303696][ T325] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 21.303899][ T325] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 21.304122][ T325] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 21.304332][ T325] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 21.304535][ T325] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 21.304740][ T325] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 21.304951][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 21.305165][ T325] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 21.305374][ T325] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 21.305576][ T325] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 21.305795][ T325] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 21.306001][ T325] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 21.306225][ T325] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 21.306476][ T325] ? __copy_msghdr (net/socket.c:2556) [ 21.306682][ T325] ___sys_sendmsg (net/socket.c:2686) [ 21.306886][ T325] ? copy_msghdr_from_user (net/socket.c:2673) [ 21.307099][ T325] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.307316][ T325] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.307521][ T325] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 21.307729][ T325] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 21.307938][ T325] __sys_sendmsg (net/socket.c:2716) [ 21.308159][ T325] ? __sys_sendmsg_sock (net/socket.c:2701) [ 21.308370][ T325] ? __rseq_handle_notify_resume (kernel/rseq.c:442) [ 21.308624][ T325] ? do_user_addr_fault (./include/linux/mmap_lock.h:396 arch/x86/mm/fault.c:1415) [ 21.308843][ T325] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 21.309067][ T325] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 21.309282][ T325] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 21.309528][ T325] RIP: 0033:0x7fbbd99181d7 [ 21.309752][ T325] Code: Unable to access opcode bytes at 0x7fbbd99181ad. Code starting with the faulting instruction =========================================== [ 21.310011][ T325] RSP: 002b:00007fffc948a668 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 21.310333][ T325] RAX: ffffffffffffffda RBX: 00007fffc948ad90 RCX: 00007fbbd99181d7 [ 21.310635][ T325] RDX: 0000000000000000 RSI: 00007fffc948a6d0 RDI: 0000000000000005 [ 21.310930][ T325] RBP: 000000000000000e R08: 0000000000000080 R09: 0000000000000000 [ 21.311230][ T325] R10: 00007fbbd980f770 R11: 0000000000000246 R12: 00007fffc948adb0 Finger prints: lockdep_init_map_type:gro_cells_init:vxlan_init:register_netdevice:__vxlan_dev_create