====================================== | [ 18.252757][ T304] ------------[ cut here ]------------ | [ 18.253143][ T304] RTNL: assertion failed at net/core/link_watch.c (59) | [ 18.253416][ T304] WARNING: CPU: 2 PID: 304 at net/core/link_watch.c:59 default_operstate (net/core/link_watch.c:59 (discriminator 3)) | [ 18.253751][ T304] Modules linked in: act_mirred cls_matchall ip6_gre gre sch_ingress [ 18.254355][ T304] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.254594][ T304] RIP: 0010:default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 18.254792][ T304] 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 57 a0 48 c7 c7 40 7c 57 a0 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 57 a0 mov $0xffffffffa0577c00,%rsi 1d: 48 c7 c7 40 7c 57 a0 mov $0xffffffffa0577c40,%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 [ 18.255449][ T304] RSP: 0018:ffffc90000c271c8 EFLAGS: 00010286 [ 18.255706][ T304] RAX: 0000000000000000 RBX: ffff888008359000 RCX: 1ffffffff41bdd8c [ 18.256030][ T304] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 [ 18.256323][ T304] RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff41bdd8c [ 18.256604][ T304] R10: 0000000000000003 R11: ffff888009552300 R12: 0000000000000000 [ 18.256889][ T304] R13: dffffc0000000000 R14: ffff888008381000 R15: ffff8880083595c0 [ 18.257204][ T304] FS: 00007fda33bdc800(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 [ 18.257536][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.257772][ T304] CR2: 00000000004e6390 CR3: 0000000004a3c006 CR4: 0000000000772ef0 [ 18.258056][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.258349][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.258626][ T304] PKRU: 55555554 [ 18.258775][ T304] Call Trace: [ 18.258929][ T304] [ 18.259036][ T304] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 18.259262][ T304] ? __warn (kernel/panic.c:748) [ 18.259425][ T304] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 18.259617][ T304] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 18.259809][ T304] ? handle_bug (arch/x86/kernel/traps.c:285) [ 18.259962][ T304] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [ 18.260171][ T304] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) [ 18.260373][ T304] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 18.260576][ T304] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 18.260769][ T304] rfc2863_policy (net/core/link_watch.c:78) [ 18.260962][ T304] linkwatch_do_dev (net/core/link_watch.c:180) [ 18.261159][ T304] netdev_run_todo (net/core/dev.c:10894 (discriminator 2)) [ 18.261353][ T304] ? __pfx_netdev_run_todo (net/core/dev.c:10867) [ 18.261540][ T304] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11455) [ 18.261780][ T304] rtnl_dellink (net/core/rtnetlink.c:3528) [ 18.261972][ T304] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [ 18.262229][ T304] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 18.262428][ T304] ? __lock_release (kernel/locking/lockdep.c:5525) [ 18.262618][ T304] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [ 18.262809][ T304] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 18.262997][ T304] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 18.263213][ T304] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [ 18.263404][ T304] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [ 18.263596][ T304] rtnetlink_rcv_msg (net/core/rtnetlink.c:6902) [ 18.263791][ T304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [ 18.263983][ T304] ? 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) [ 18.264186][ T304] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 18.264340][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 18.264536][ T304] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 18.264727][ T304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [ 18.264916][ T304] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 18.265139][ T304] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 18.265331][ T304] ? 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) [ 18.265522][ T304] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 18.265718][ T304] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 18.265930][ T304] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 18.266144][ T304] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 18.266343][ T304] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 18.266553][ T304] ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2594) [ 18.266748][ T304] ? __pfx_____sys_sendmsg (net/socket.c:2540) [ 18.266942][ T304] ? __pfx_copy_msghdr_from_user (net/socket.c:2520) [ 18.267227][ T304] ___sys_sendmsg (net/socket.c:2650) [ 18.267424][ T304] ? __pfx____sys_sendmsg (net/socket.c:2637) [ 18.267615][ T304] ? kasan_save_stack (mm/kasan/common.c:49) [ 18.267806][ T304] ? kasan_save_stack (mm/kasan/common.c:48) [ 18.267995][ T304] ? __kasan_record_aux_stack (mm/kasan/generic.c:544) [ 18.268201][ T304] ? __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) [ 18.268429][ T304] ? __x64_sys_close (fs/open.c:1557 fs/open.c:1539 fs/open.c:1539) [ 18.268620][ T304] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 18.268806][ T304] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 18.269036][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 18.269245][ T304] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 18.269435][ T304] ? __lock_release (kernel/locking/lockdep.c:5525) [ 18.269628][ T304] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2058 arch/x86/mm/physaddr.c:65) [ 18.269817][ T304] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 18.270006][ T304] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 18.270212][ T304] __sys_sendmsg (net/socket.c:2680) [ 18.270401][ T304] ? __pfx___sys_sendmsg (net/socket.c:2665) [ 18.270588][ T304] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4643) [ 18.270836][ T304] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 18.271029][ T304] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 18.271296][ T304] RIP: 0033:0x7fda33de89a7 [ 18.271504][ T304] 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) [ 18.272136][ T304] RSP: 002b:00007ffd6006bdd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 18.272423][ T304] RAX: ffffffffffffffda RBX: 00007ffd6006c500 RCX: 00007fda33de89a7 [ 18.272699][ T304] RDX: 0000000000000000 RSI: 00007ffd6006be40 RDI: 0000000000000005 [ 18.272974][ T304] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 18.273271][ T304] R10: 00007fda33ca6ef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: default_operstate:rfc2863_policy:linkwatch_do_dev:netdev_run_todo:rtnl_dellink