====================================== | [ 56.450961][ T547] ------------[ cut here ]------------ | [ 56.451400][ T547] RTNL: assertion failed at net/core/link_watch.c (59) | [ 56.451699][ T547] WARNING: CPU: 2 PID: 547 at net/core/link_watch.c:59 default_operstate (net/core/link_watch.c:59 (discriminator 3)) | [ 56.452038][ T547] Modules linked in: act_gact cls_flower sch_ingress ip_gre gre 8021q vrf veth [ 56.452703][ T547] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 56.452944][ T547] RIP: 0010:default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 56.453165][ T547] 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 b7 9f 48 c7 c7 40 2b b7 9f 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 b7 9f mov $0xffffffff9fb72b00,%rsi 1d: 48 c7 c7 40 2b b7 9f mov $0xffffffff9fb72b40,%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 [ 56.453872][ T547] RSP: 0018:ffffc90000bf71c8 EFLAGS: 00010286 [ 56.454119][ T547] RAX: 0000000000000000 RBX: ffff888007cb1000 RCX: 1ffffffff407b58c [ 56.454498][ T547] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 [ 56.454854][ T547] RBP: 0000000000000005 R08: 0000000000000000 R09: fffffbfff407b58c [ 56.455200][ T547] R10: 0000000000000003 R11: ffff88800999a300 R12: 0000000000000000 [ 56.455592][ T547] R13: dffffc0000000000 R14: ffffc90000bf6cb0 R15: ffff888007cb15b0 [ 56.455890][ T547] FS: 00007fd20c38a800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000 [ 56.456191][ T547] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.456433][ T547] CR2: 00007f8af78dd5a0 CR3: 000000000ec00004 CR4: 0000000000772ef0 [ 56.456750][ T547] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.457045][ T547] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.457336][ T547] PKRU: 55555554 [ 56.457518][ T547] Call Trace: [ 56.457672][ T547] [ 56.457781][ T547] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 56.457983][ T547] ? __warn (kernel/panic.c:748) [ 56.458135][ T547] ? 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) [ 56.458329][ T547] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 56.458539][ T547] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 56.458745][ T547] ? handle_bug (arch/x86/kernel/traps.c:285) [ 56.458898][ T547] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [ 56.459086][ T547] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) [ 56.459295][ T547] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 56.459502][ T547] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 56.459697][ T547] rfc2863_policy (net/core/link_watch.c:78) [ 56.459892][ T547] linkwatch_do_dev (net/core/link_watch.c:180) [ 56.460087][ T547] netdev_run_todo (net/core/dev.c:10894 (discriminator 2)) [ 56.460291][ T547] ? __pfx_netdev_run_todo (net/core/dev.c:10867) [ 56.460506][ T547] rtnl_dellink (net/core/rtnetlink.c:3528) [ 56.460707][ T547] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [ 56.460954][ T547] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 56.461155][ T547] ? __lock_release (kernel/locking/lockdep.c:5525) [ 56.461344][ T547] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [ 56.461560][ T547] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 56.461763][ T547] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 56.461965][ T547] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [ 56.462157][ T547] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [ 56.462353][ T547] rtnetlink_rcv_msg (net/core/rtnetlink.c:6902) [ 56.462566][ T547] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [ 56.462758][ T547] ? 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) [ 56.462946][ T547] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 56.463104][ T547] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 56.463312][ T547] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 56.463521][ T547] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [ 56.463715][ T547] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 56.463920][ T547] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 56.464117][ T547] ? 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) [ 56.464311][ T547] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 56.464527][ T547] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 56.464722][ T547] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 56.464921][ T547] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 56.465115][ T547] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 56.465319][ T547] ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2594) [ 56.465542][ T547] ? __pfx_____sys_sendmsg (net/socket.c:2540) [ 56.465735][ T547] ? __pfx_copy_msghdr_from_user (net/socket.c:2520) [ 56.465989][ T547] ___sys_sendmsg (net/socket.c:2650) [ 56.466188][ T547] ? __pfx____sys_sendmsg (net/socket.c:2637) [ 56.466399][ T547] ? kasan_save_stack (mm/kasan/common.c:49) [ 56.466612][ T547] ? kasan_save_stack (mm/kasan/common.c:48) [ 56.466786][ T547] ? __kasan_record_aux_stack (mm/kasan/generic.c:544) [ 56.466964][ T547] ? __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) [ 56.467224][ T547] ? __x64_sys_close (fs/open.c:1557 fs/open.c:1539 fs/open.c:1539) [ 56.467429][ T547] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 56.467629][ T547] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 56.467868][ T547] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 56.468073][ T547] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 56.468266][ T547] ? __lock_release (kernel/locking/lockdep.c:5525) [ 56.468482][ T547] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2058 arch/x86/mm/physaddr.c:65) [ 56.468677][ T547] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 56.468870][ T547] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 56.469074][ T547] __sys_sendmsg (net/socket.c:2680) [ 56.469267][ T547] ? __pfx___sys_sendmsg (net/socket.c:2665) [ 56.469485][ T547] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4643) [ 56.469747][ T547] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 56.469941][ T547] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 56.470178][ T547] RIP: 0033:0x7fd20c5969a7 [ 56.470393][ T547] 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) [ 56.471043][ T547] RSP: 002b:00007ffd79cb9af8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 56.471331][ T547] RAX: ffffffffffffffda RBX: 00007ffd79cba220 RCX: 00007fd20c5969a7 [ 56.471628][ T547] RDX: 0000000000000000 RSI: 00007ffd79cb9b60 RDI: 0000000000000005 [ 56.471919][ T547] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 56.472202][ T547] R10: 00007fd20c454ef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: default_operstate:rfc2863_policy:linkwatch_do_dev:netdev_run_todo:rtnl_dellink