====================================== | [ 911.506559][T16467] ------------[ cut here ]------------ | [ 911.507613][T16467] RTNL: assertion failed at net/core/link_watch.c (59) | [911.508000][T16467] WARNING: CPU: 2 PID: 16467 at net/core/link_watch.c:59 default_operstate (net/core/link_watch.c:59 (discriminator 3)) | [ 911.508524][T16467] Modules linked in: 8021q ip_gre gre vxlan ip6_udp_tunnel udp_tunnel bridge stp llc act_gact cls_flower sch_ingress vrf veth [ 911.509530][T16467] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [911.509811][T16467] RIP: 0010:default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 911.510058][T16467] Code: 83 e4 01 0f 85 03 ff ff ff c6 05 2e 39 3a 02 01 90 ba 3b 00 00 00 48 c7 c6 00 2b f7 9b 48 c7 c7 40 2b f7 9b e8 13 95 ea fd 90 <0f> 0b 90 90 e9 d9 fe ff ff 48 89 ef e8 d1 bb 71 fe e9 f7 fd ff ff All code ======== 0: 83 e4 01 and $0x1,%esp 3: 0f 85 03 ff ff ff jne 0xffffffffffffff0c 9: c6 05 2e 39 3a 02 01 movb $0x1,0x23a392e(%rip) # 0x23a393e 10: 90 nop 11: ba 3b 00 00 00 mov $0x3b,%edx 16: 48 c7 c6 00 2b f7 9b mov $0xffffffff9bf72b00,%rsi 1d: 48 c7 c7 40 2b f7 9b mov $0xffffffff9bf72b40,%rdi 24: e8 13 95 ea fd call 0xfffffffffdea953c 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: e9 d9 fe ff ff jmp 0xffffffffffffff0c 33: 48 89 ef mov %rbp,%rdi 36: e8 d1 bb 71 fe call 0xfffffffffe71bc0c 3b: e9 f7 fd ff ff jmp 0xfffffffffffffe37 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: e9 d9 fe ff ff jmp 0xfffffffffffffee2 9: 48 89 ef mov %rbp,%rdi c: e8 d1 bb 71 fe call 0xfffffffffe71bbe2 11: e9 f7 fd ff ff jmp 0xfffffffffffffe0d [ 911.510858][T16467] RSP: 0018:ffffc90000c971c8 EFLAGS: 00010286 [ 911.511113][T16467] RAX: 0000000000000000 RBX: ffff88800f691000 RCX: 1ffffffff38fb58c [ 911.511376][T16467] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 [ 911.511662][T16467] RBP: 0000000000000007 R08: 0000000000000000 R09: fffffbfff38fb58c [ 911.512004][T16467] R10: 0000000000000003 R11: ffff88800e1b45c0 R12: 0000000000000000 [ 911.512317][T16467] R13: dffffc0000000000 R14: ffffc90000c96cb0 R15: ffff88800f6915b0 [ 911.512633][T16467] FS: 00007f4cb3765800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000 [ 911.513056][T16467] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 911.513305][T16467] CR2: 00007f06cc1075a0 CR3: 000000000f6c2005 CR4: 0000000000772ef0 [ 911.513694][T16467] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 911.514090][T16467] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 911.514372][T16467] PKRU: 55555554 [ 911.514513][T16467] Call Trace: [ 911.514656][T16467] [911.514774][T16467] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [911.514983][T16467] ? __warn (kernel/panic.c:748) [911.515129][T16467] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [911.515359][T16467] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [911.515579][T16467] ? report_bug (lib/bug.c:201 lib/bug.c:219) [911.515823][T16467] ? handle_bug (arch/x86/kernel/traps.c:285) [911.516035][T16467] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [911.516255][T16467] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) [911.516446][T16467] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [911.516670][T16467] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [911.516979][T16467] rfc2863_policy (net/core/link_watch.c:78) [911.517227][T16467] linkwatch_do_dev (net/core/link_watch.c:180) [911.517415][T16467] netdev_run_todo (net/core/dev.c:10894 (discriminator 2)) [911.517597][T16467] ? __pfx_netdev_run_todo (net/core/dev.c:10867) [911.517799][T16467] rtnl_dellink (net/core/rtnetlink.c:3528) [911.518003][T16467] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [911.518231][T16467] ? find_held_lock (kernel/locking/lockdep.c:5339) [911.518417][T16467] ? __lock_release (kernel/locking/lockdep.c:5525) [911.518592][T16467] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [911.518780][T16467] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [911.518981][T16467] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [911.519168][T16467] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [911.519345][T16467] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [911.519526][T16467] rtnetlink_rcv_msg (net/core/rtnetlink.c:6902) [911.519707][T16467] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [911.519960][T16467] ? 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:228) [911.520159][T16467] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [911.520320][T16467] ? __lock_acquire (kernel/locking/lockdep.c:5226) [911.520513][T16467] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [911.520706][T16467] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [911.520944][T16467] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [911.521137][T16467] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [911.521321][T16467] ? 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) [911.521502][T16467] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [911.521692][T16467] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [911.521899][T16467] ? find_held_lock (kernel/locking/lockdep.c:5339) [911.522086][T16467] netlink_sendmsg (net/netlink/af_netlink.c:1892) [911.522266][T16467] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [911.522455][T16467] ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2594) [911.522648][T16467] ? __pfx_____sys_sendmsg (net/socket.c:2540) [911.522931][T16467] ? __pfx_copy_msghdr_from_user (net/socket.c:2520) [911.523227][T16467] ___sys_sendmsg (net/socket.c:2650) [911.523451][T16467] ? __pfx____sys_sendmsg (net/socket.c:2637) [911.523680][T16467] ? kasan_save_stack (mm/kasan/common.c:49) [911.523907][T16467] ? kasan_save_stack (mm/kasan/common.c:48) [911.524172][T16467] ? __kasan_record_aux_stack (mm/kasan/generic.c:544) [911.524368][T16467] ? __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:3087) [911.524637][T16467] ? __x64_sys_close (fs/open.c:1557 fs/open.c:1539 fs/open.c:1539) [911.524926][T16467] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [911.525178][T16467] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [911.525504][T16467] ? __lock_acquire (kernel/locking/lockdep.c:5226) [911.525800][T16467] ? find_held_lock (kernel/locking/lockdep.c:5339) [911.526140][T16467] ? __lock_release (kernel/locking/lockdep.c:5525) [911.526447][T16467] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2058 arch/x86/mm/physaddr.c:65) [911.526753][T16467] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [911.527100][T16467] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [911.527415][T16467] __sys_sendmsg (net/socket.c:2680) [911.527718][T16467] ? __pfx___sys_sendmsg (net/socket.c:2665) [911.528083][T16467] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4643) [911.528412][T16467] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [911.528615][T16467] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 911.528934][T16467] RIP: 0033:0x7f4cb39719a7 [ 911.529207][T16467] 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) [ 911.529853][T16467] RSP: 002b:00007ffc70e326d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 911.530219][T16467] RAX: ffffffffffffffda RBX: 00007ffc70e32e00 RCX: 00007f4cb39719a7 [ 911.530535][T16467] RDX: 0000000000000000 RSI: 00007ffc70e32740 RDI: 0000000000000005 [ 911.530865][T16467] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 911.531211][T16467] R10: 00007f4cb382fef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: default_operstate:rfc2863_policy:linkwatch_do_dev:netdev_run_todo:rtnl_dellink