====================================== | [ 33.102942][ T438] ------------[ cut here ]------------ | [ 33.103181][ T438] RTNL: assertion failed at net/core/link_watch.c (59) | [ 33.103449][ T438] WARNING: CPU: 3 PID: 438 at net/core/link_watch.c:59 default_operstate (net/core/link_watch.c:59 (discriminator 3)) | [ 33.103744][ T438] Modules linked in: act_mirred cls_matchall ip6_gre gre sch_ingress [ 33.104291][ T438] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.104509][ T438] RIP: 0010:default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 33.104683][ T438] Code: 83 e4 01 0f 85 03 ff ff ff c6 05 08 23 5c 02 01 90 ba 3b 00 00 00 48 c7 c6 00 7c f7 88 48 c7 c7 40 7c f7 88 e8 b3 b2 e5 fd 90 <0f> 0b 90 90 e9 d9 fe ff ff 48 89 ef e8 81 63 6d 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 08 23 5c 02 01 movb $0x1,0x25c2308(%rip) # 0x25c2318 10: 90 nop 11: ba 3b 00 00 00 mov $0x3b,%edx 16: 48 c7 c6 00 7c f7 88 mov $0xffffffff88f77c00,%rsi 1d: 48 c7 c7 40 7c f7 88 mov $0xffffffff88f77c40,%rdi 24: e8 b3 b2 e5 fd call 0xfffffffffde5b2dc 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 81 63 6d fe call 0xfffffffffe6d63bc 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 81 63 6d fe call 0xfffffffffe6d6392 11: e9 f7 fd ff ff jmp 0xfffffffffffffe0d [ 33.105286][ T438] RSP: 0018:ffffc900005271c8 EFLAGS: 00010286 [ 33.105516][ T438] RAX: 0000000000000000 RBX: ffff888007999000 RCX: 1ffffffff12fdd8c [ 33.105768][ T438] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 [ 33.106031][ T438] RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff12fdd8c [ 33.106293][ T438] R10: 0000000000000003 R11: ffff88800a3a45c0 R12: 0000000000000000 [ 33.106547][ T438] R13: dffffc0000000000 R14: ffff888008781000 R15: ffff8880079995c0 [ 33.106808][ T438] FS: 00007f15dbd95800(0000) GS:ffff88806d180000(0000) knlGS:0000000000000000 [ 33.107100][ T438] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.107329][ T438] CR2: 00007f80ef9da5a0 CR3: 000000000bb04001 CR4: 0000000000772ef0 [ 33.107584][ T438] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.107836][ T438] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.108090][ T438] PKRU: 55555554 [ 33.108237][ T438] Call Trace: [ 33.108368][ T438] [ 33.108459][ T438] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 33.108629][ T438] ? __warn (kernel/panic.c:748) [ 33.108761][ T438] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 33.108933][ T438] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 33.109105][ T438] ? handle_bug (arch/x86/kernel/traps.c:285) [ 33.109261][ T438] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [ 33.109425][ T438] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) [ 33.109601][ T438] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 33.109766][ T438] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 33.109931][ T438] rfc2863_policy (net/core/link_watch.c:78) [ 33.110102][ T438] linkwatch_do_dev (net/core/link_watch.c:180) [ 33.110279][ T438] netdev_run_todo (net/core/dev.c:10894 (discriminator 2)) [ 33.110448][ T438] ? __pfx_netdev_run_todo (net/core/dev.c:10867) [ 33.110622][ T438] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11455) [ 33.110835][ T438] rtnl_dellink (net/core/rtnetlink.c:3528) [ 33.111003][ T438] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [ 33.111223][ T438] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 33.111405][ T438] ? __lock_release (kernel/locking/lockdep.c:5525) [ 33.111570][ T438] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [ 33.111735][ T438] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 33.111907][ T438] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 33.112080][ T438] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [ 33.112257][ T438] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [ 33.112422][ T438] rtnetlink_rcv_msg (net/core/rtnetlink.c:6902) [ 33.112592][ T438] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [ 33.112757][ T438] ? 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) [ 33.112920][ T438] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 33.113055][ T438] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 33.113239][ T438] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 33.113405][ T438] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [ 33.113572][ T438] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 33.113754][ T438] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 33.113923][ T438] ? 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) [ 33.114091][ T438] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 33.114279][ T438] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 33.114449][ T438] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 33.114619][ T438] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 33.114787][ T438] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 33.114963][ T438] ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2594) [ 33.115134][ T438] ? __pfx_____sys_sendmsg (net/socket.c:2540) [ 33.115315][ T438] ? __pfx_copy_msghdr_from_user (net/socket.c:2520) [ 33.115544][ T438] ___sys_sendmsg (net/socket.c:2650) [ 33.115713][ T438] ? __pfx____sys_sendmsg (net/socket.c:2637) [ 33.115882][ T438] ? kasan_save_stack (mm/kasan/common.c:49) [ 33.116048][ T438] ? kasan_save_stack (mm/kasan/common.c:48) [ 33.116214][ T438] ? __kasan_record_aux_stack (mm/kasan/generic.c:544) [ 33.116391][ T438] ? __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) [ 33.116599][ T438] ? __x64_sys_close (fs/open.c:1557 fs/open.c:1539 fs/open.c:1539) [ 33.116764][ T438] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 33.116934][ T438] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 33.117136][ T438] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 33.117323][ T438] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 33.117489][ T438] ? __lock_release (kernel/locking/lockdep.c:5525) [ 33.117655][ T438] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2058 arch/x86/mm/physaddr.c:65) [ 33.117822][ T438] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 33.117987][ T438] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 33.118165][ T438] __sys_sendmsg (net/socket.c:2680) [ 33.118344][ T438] ? __pfx___sys_sendmsg (net/socket.c:2665) [ 33.118511][ T438] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4643) [ 33.118736][ T438] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 33.118903][ T438] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 33.119107][ T438] RIP: 0033:0x7f15dbfa19a7 [ 33.119297][ T438] 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) [ 33.119873][ T438] RSP: 002b:00007ffda11b6ae8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.120127][ T438] RAX: ffffffffffffffda RBX: 00007ffda11b7210 RCX: 00007f15dbfa19a7 [ 33.120384][ T438] RDX: 0000000000000000 RSI: 00007ffda11b6b50 RDI: 0000000000000005 [ 33.120644][ T438] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 33.120891][ T438] R10: 00007f15dbe5fef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: default_operstate:rfc2863_policy:linkwatch_do_dev:netdev_run_todo:rtnl_dellink