====================================== | [ 1383.173319][T17312] ------------[ cut here ]------------ | [ 1383.173566][T17312] RTNL: assertion failed at net/core/link_watch.c (59) | [1383.173814][T17312] WARNING: CPU: 0 PID: 17312 at net/core/link_watch.c:59 default_operstate (net/core/link_watch.c:59 (discriminator 3)) | [ 1383.174123][T17312] Modules linked in: act_gact cls_flower sch_ingress 8021q ip6_gre ip6_tunnel tunnel6 gre vrf veth [ 1383.174772][T17312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [1383.174985][T17312] RIP: 0010:default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 1383.175167][T17312] 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 97 b9 48 c7 c7 40 2b 97 b9 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 97 b9 mov $0xffffffffb9972b00,%rsi 1d: 48 c7 c7 40 2b 97 b9 mov $0xffffffffb9972b40,%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 [ 1383.175778][T17312] RSP: 0018:ffffc900049e71c8 EFLAGS: 00010286 [ 1383.175996][T17312] RAX: 0000000000000000 RBX: ffff888008959000 RCX: 1ffffffff743b58c [ 1383.176255][T17312] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 [ 1383.176537][T17312] RBP: 0000000000000007 R08: 0000000000000000 R09: fffffbfff743b58c [ 1383.176792][T17312] R10: 0000000000000003 R11: ffff88800ea88040 R12: 0000000000000000 [ 1383.177049][T17312] R13: dffffc0000000000 R14: ffffc900049e6cb0 R15: ffff8880089595b0 [ 1383.177300][T17312] FS: 00007fd96b6dc800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000 [ 1383.177613][T17312] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1383.177826][T17312] CR2: 00007f37915105a0 CR3: 0000000006294003 CR4: 0000000000772ef0 [ 1383.178083][T17312] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1383.178331][T17312] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1383.178609][T17312] PKRU: 55555554 [ 1383.178740][T17312] Call Trace: [ 1383.178867][T17312] <TASK> [1383.178958][T17312] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [1383.179130][T17312] ? __warn (kernel/panic.c:748) [1383.179281][T17312] ? 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) [1383.179473][T17312] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [1383.179642][T17312] ? report_bug (lib/bug.c:201 lib/bug.c:219) [1383.179814][T17312] ? handle_bug (arch/x86/kernel/traps.c:285) [1383.179940][T17312] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [1383.180107][T17312] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) [1383.180288][T17312] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [1383.180505][T17312] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [1383.180689][T17312] rfc2863_policy (net/core/link_watch.c:78) [1383.180875][T17312] linkwatch_do_dev (net/core/link_watch.c:180) [1383.181059][T17312] netdev_run_todo (net/core/dev.c:10894 (discriminator 2)) [1383.181244][T17312] ? __pfx_netdev_run_todo (net/core/dev.c:10867) [1383.181552][T17312] rtnl_dellink (net/core/rtnetlink.c:3528) [1383.181749][T17312] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [1383.181983][T17312] ? find_held_lock (kernel/locking/lockdep.c:5339) [1383.182168][T17312] ? __lock_release (kernel/locking/lockdep.c:5525) [1383.182349][T17312] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [1383.182630][T17312] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [1383.182812][T17312] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [1383.183002][T17312] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [1383.183188][T17312] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [1383.183434][T17312] rtnetlink_rcv_msg (net/core/rtnetlink.c:6902) [1383.183644][T17312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [1383.183826][T17312] ? 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) [1383.184015][T17312] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [1383.184157][T17312] ? __lock_acquire (kernel/locking/lockdep.c:5226) [1383.184342][T17312] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [1383.184558][T17312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [1383.184742][T17312] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [1383.184946][T17312] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [1383.185132][T17312] ? 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) [1383.185318][T17312] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [1383.185538][T17312] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [1383.185720][T17312] ? find_held_lock (kernel/locking/lockdep.c:5339) [1383.185910][T17312] netlink_sendmsg (net/netlink/af_netlink.c:1892) [1383.186096][T17312] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [1383.186292][T17312] ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2594) [1383.186515][T17312] ? __pfx_____sys_sendmsg (net/socket.c:2540) [1383.186698][T17312] ? __pfx_copy_msghdr_from_user (net/socket.c:2520) [1383.186936][T17312] ___sys_sendmsg (net/socket.c:2650) [1383.187117][T17312] ? __pfx____sys_sendmsg (net/socket.c:2637) [1383.187300][T17312] ? kasan_save_stack (mm/kasan/common.c:49) [1383.187537][T17312] ? kasan_save_stack (mm/kasan/common.c:48) [1383.187734][T17312] ? __kasan_record_aux_stack (mm/kasan/generic.c:544) [1383.187923][T17312] ? __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) [1383.188148][T17312] ? __x64_sys_close (fs/open.c:1557 fs/open.c:1539 fs/open.c:1539) [1383.188328][T17312] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [1383.188550][T17312] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [1383.188776][T17312] ? __lock_acquire (kernel/locking/lockdep.c:5226) [1383.188970][T17312] ? find_held_lock (kernel/locking/lockdep.c:5339) [1383.189169][T17312] ? __lock_release (kernel/locking/lockdep.c:5525) [1383.189361][T17312] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2058 arch/x86/mm/physaddr.c:65) [1383.189584][T17312] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [1383.189766][T17312] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [1383.189951][T17312] __sys_sendmsg (net/socket.c:2680) [1383.190134][T17312] ? __pfx___sys_sendmsg (net/socket.c:2665) [1383.190315][T17312] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4643) [1383.190594][T17312] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [1383.190786][T17312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 1383.191014][T17312] RIP: 0033:0x7fd96b8e89a7 [ 1383.191210][T17312] 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) [ 1383.191876][T17312] RSP: 002b:00007ffc581dcee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1383.192162][T17312] RAX: ffffffffffffffda RBX: 00007ffc581dd610 RCX: 00007fd96b8e89a7 [ 1383.192471][T17312] RDX: 0000000000000000 RSI: 00007ffc581dcf50 RDI: 0000000000000005 [ 1383.192746][T17312] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 1383.193022][T17312] R10: 00007fd96b7a6ef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: default_operstate:rfc2863_policy:linkwatch_do_dev:netdev_run_todo:rtnl_dellink