====================================== | [ 17.219724][ T65] br0: port 1(vxlan0) entered disabled state | [ 17.237845][ T65] ------------[ cut here ]------------ | [ 17.238050][ T65] WARNING: CPU: 3 PID: 65 at net/core/rtnetlink.c:135 __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1)) | [ 17.238366][ T65] Modules linked in: vxlan [ 17.238856][ T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.239073][ T65] Workqueue: netns cleanup_net [ 17.239260][ T65] RIP: 0010:__rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1)) [ 17.239434][ T65] Code: ff 31 d2 be 8f 00 00 00 48 c7 c7 80 48 b7 9b e8 8a 7d f1 fd e8 c5 d3 93 00 48 85 db 75 c4 48 83 c4 08 5b 5d c3 cc cc cc cc 90 <0f> 0b 90 eb 8e 48 89 f7 48 89 34 24 e8 c3 82 6d fe 48 8b 34 24 eb All code ======== 0: ff 31 push (%rcx) 2: d2 be 8f 00 00 00 sarb %cl,0x8f(%rsi) 8: 48 c7 c7 80 48 b7 9b mov $0xffffffff9bb74880,%rdi f: e8 8a 7d f1 fd call 0xfffffffffdf17d9e 14: e8 c5 d3 93 00 call 0x93d3de 19: 48 85 db test %rbx,%rbx 1c: 75 c4 jne 0xffffffffffffffe2 1e: 48 83 c4 08 add $0x8,%rsp 22: 5b pop %rbx 23: 5d pop %rbp 24: c3 ret 25: cc int3 26: cc int3 27: cc int3 28: cc int3 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: eb 8e jmp 0xffffffffffffffbd 2f: 48 89 f7 mov %rsi,%rdi 32: 48 89 34 24 mov %rsi,(%rsp) 36: e8 c3 82 6d fe call 0xfffffffffe6d82fe 3b: 48 8b 34 24 mov (%rsp),%rsi 3f: eb .byte 0xeb Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: eb 8e jmp 0xffffffffffffff93 5: 48 89 f7 mov %rsi,%rdi 8: 48 89 34 24 mov %rsi,(%rsp) c: e8 c3 82 6d fe call 0xfffffffffe6d82d4 11: 48 8b 34 24 mov (%rsp),%rsi 15: eb .byte 0xeb [ 17.240082][ T65] RSP: 0018:ffffc900004679c0 EFLAGS: 00010287 [ 17.240338][ T65] RAX: ffff88800e8205c0 RBX: ffff8880092da300 RCX: ffffffff9b33c8ca [ 17.240623][ T65] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff888006579178 [ 17.240918][ T65] RBP: ffff8880065791b8 R08: 0000000000000001 R09: fffff5200008cf12 [ 17.241202][ T65] R10: ffffc90000467897 R11: ffff8880092da300 R12: ffffc90000467b40 [ 17.241497][ T65] R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc90000467a70 [ 17.241800][ T65] FS: 0000000000000000(0000) GS:ffff88806d180000(0000) knlGS:0000000000000000 [ 17.242120][ T65] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.242364][ T65] CR2: 00007fa5d43b5ac0 CR3: 000000004c13a004 CR4: 0000000000772ef0 [ 17.242706][ T65] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 17.242964][ T65] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 17.243225][ T65] PKRU: 55555554 [ 17.243355][ T65] Call Trace: [ 17.243482][ T65] [ 17.243588][ T65] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1)) [ 17.243763][ T65] ? __warn (kernel/panic.c:748) [ 17.243903][ T65] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1)) [ 17.244078][ T65] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 17.244254][ T65] ? handle_bug (arch/x86/kernel/traps.c:285) [ 17.244385][ T65] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [ 17.244564][ T65] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) [ 17.244746][ T65] ? __mutex_unlock_slowpath (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4329 ./include/linux/atomic/atomic-long.h:1506 ./include/linux/atomic/atomic-instrumented.h:4481 kernel/locking/mutex.c:913) [ 17.244923][ T65] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1)) [ 17.245111][ T65] unregister_netdevice_many_notify (net/core/dev.c:11453 net/core/dev.c:11638) [ 17.245336][ T65] ? unregister_netdevice_queue (net/core/dev.c:11521) [ 17.245561][ T65] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536) [ 17.245767][ T65] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11520) [ 17.245996][ T65] ? rtnl_is_locked (net/core/rtnetlink.c:163) [ 17.246165][ T65] ? unregister_netdevice_queue (net/core/dev.c:11521) [ 17.246380][ T65] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11520) [ 17.246605][ T65] ? vrf_dellink (drivers/net/vrf.c:1668) [ 17.246782][ T65] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11520) [ 17.247001][ T65] default_device_exit_batch (net/core/dev.c:12147) [ 17.247189][ T65] ? __pfx_default_device_exit_batch (net/core/dev.c:12122) [ 17.247402][ T65] ? ops_exit_list (net/core/net_namespace.c:171 (discriminator 3)) [ 17.247596][ T65] cleanup_net (net/core/net_namespace.c:651 (discriminator 3)) [ 17.247770][ T65] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 17.247948][ T65] ? __pfx_cleanup_net (net/core/net_namespace.c:594) [ 17.248115][ T65] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37)) [ 17.248300][ T65] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 17.248469][ T65] ? process_one_work (kernel/workqueue.c:3205) [ 17.248665][ T65] process_one_work (kernel/workqueue.c:3229) [ 17.248851][ T65] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 17.249027][ T65] ? __pfx_process_one_work (kernel/workqueue.c:3131) [ 17.249219][ T65] ? assign_work (kernel/workqueue.c:1200) [ 17.249399][ T65] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391) [ 17.249591][ T65] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 17.249811][ T65] ? __pfx_worker_thread (kernel/workqueue.c:3337) [ 17.249990][ T65] ? __pfx_worker_thread (kernel/workqueue.c:3337) [ 17.250156][ T65] kthread (kernel/kthread.c:389) [ 17.250285][ T65] ? __pfx_kthread (kernel/kthread.c:342) [ 17.250465][ T65] ret_from_fork (arch/x86/kernel/process.c:147) [ 17.250672][ T65] ? __pfx_kthread (kernel/kthread.c:342) Finger prints: __rtnl_unlock:unregister_netdevice_many_notify:default_device_exit_batch:cleanup_net:process_one_work