====================================== | [ 11.449698][ T278] ------------[ cut here ]------------ | [ 11.449985][ T278] RTNL: assertion failed at net/core/link_watch.c (59) | [ 11.450259][ T278] WARNING: CPU: 1 PID: 278 at net/core/link_watch.c:59 default_operstate (net/core/link_watch.c:59 (discriminator 3)) | [ 11.450572][ T278] Modules linked in: [ 11.450986][ T278] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.451217][ T278] RIP: 0010:default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 11.451404][ T278] 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 77 9b 48 c7 c7 40 7c 77 9b 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 77 9b mov $0xffffffff9b777c00,%rsi 1d: 48 c7 c7 40 7c 77 9b mov $0xffffffff9b777c40,%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 [ 11.452012][ T278] RSP: 0018:ffffc90000d271c8 EFLAGS: 00010286 [ 11.452263][ T278] RAX: 0000000000000000 RBX: ffff888009571000 RCX: 1ffffffff37fdd8c [ 11.452529][ T278] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 [ 11.452801][ T278] RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff37fdd8c [ 11.453086][ T278] R10: 0000000000000003 R11: ffff88800ddca300 R12: 0000000000000000 [ 11.453367][ T278] R13: dffffc0000000000 R14: ffff88800a0e4000 R15: ffff8880095715c0 [ 11.453632][ T278] FS: 00007efc4e9a8800(0000) GS:ffff88806d080000(0000) knlGS:0000000000000000 [ 11.453941][ T278] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.454176][ T278] CR2: 00000000004e4c00 CR3: 000000000e090003 CR4: 0000000000772ef0 [ 11.454445][ T278] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 11.454719][ T278] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 11.454981][ T278] PKRU: 55555554 [ 11.455125][ T278] Call Trace: [ 11.455261][ T278] [ 11.455355][ T278] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 11.455533][ T278] ? __warn (kernel/panic.c:748) [ 11.455670][ T278] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 11.455849][ T278] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 11.456034][ T278] ? handle_bug (arch/x86/kernel/traps.c:285) [ 11.456180][ T278] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [ 11.456356][ T278] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) [ 11.456541][ T278] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 11.456717][ T278] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 11.456895][ T278] rfc2863_policy (net/core/link_watch.c:78) [ 11.457098][ T278] linkwatch_do_dev (net/core/link_watch.c:180) [ 11.457275][ T278] netdev_run_todo (net/core/dev.c:10894 (discriminator 2)) [ 11.457456][ T278] ? __pfx_netdev_run_todo (net/core/dev.c:10867) [ 11.457635][ T278] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11455) [ 11.457861][ T278] rtnl_dellink (net/core/rtnetlink.c:3528) [ 11.458042][ T278] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [ 11.458350][ T278] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 11.458532][ T278] ? __lock_release (kernel/locking/lockdep.c:5525) [ 11.458707][ T278] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [ 11.458887][ T278] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 11.459117][ T278] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 11.459302][ T278] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [ 11.459477][ T278] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [ 11.459654][ T278] rtnetlink_rcv_msg (net/core/rtnetlink.c:6902) [ 11.459830][ T278] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [ 11.460005][ T278] ? 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) [ 11.460193][ T278] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 11.460334][ T278] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 11.460514][ T278] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 11.460689][ T278] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [ 11.460866][ T278] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 11.461057][ T278] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 11.461251][ T278] ? 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) [ 11.461434][ T278] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 11.461612][ T278] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 11.461791][ T278] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 11.461976][ T278] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 11.462164][ T278] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 11.462349][ T278] ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2594) [ 11.462526][ T278] ? __pfx_____sys_sendmsg (net/socket.c:2540) [ 11.462727][ T278] ? __pfx_copy_msghdr_from_user (net/socket.c:2520) [ 11.462963][ T278] ___sys_sendmsg (net/socket.c:2650) [ 11.463154][ T278] ? __pfx____sys_sendmsg (net/socket.c:2637) [ 11.463335][ T278] ? kasan_save_stack (mm/kasan/common.c:49) [ 11.463513][ T278] ? kasan_save_stack (mm/kasan/common.c:48) [ 11.463688][ T278] ? __kasan_record_aux_stack (mm/kasan/generic.c:544) [ 11.463866][ T278] ? __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) [ 11.464095][ T278] ? __x64_sys_close (fs/open.c:1557 fs/open.c:1539 fs/open.c:1539) [ 11.464275][ T278] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 11.464452][ T278] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 11.464676][ T278] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 11.464862][ T278] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 11.465040][ T278] ? __lock_release (kernel/locking/lockdep.c:5525) [ 11.465230][ T278] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2058 arch/x86/mm/physaddr.c:65) [ 11.465420][ T278] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 11.465600][ T278] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 11.465784][ T278] __sys_sendmsg (net/socket.c:2680) [ 11.465962][ T278] ? __pfx___sys_sendmsg (net/socket.c:2665) [ 11.466147][ T278] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4643) [ 11.466383][ T278] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 11.466561][ T278] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 11.466776][ T278] RIP: 0033:0x7efc4ebb49a7 [ 11.466963][ T278] 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) [ 11.467594][ T278] RSP: 002b:00007ffc2ff132f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 11.467880][ T278] RAX: ffffffffffffffda RBX: 00007ffc2ff13a20 RCX: 00007efc4ebb49a7 [ 11.468155][ T278] RDX: 0000000000000000 RSI: 00007ffc2ff13360 RDI: 0000000000000005 [ 11.468420][ T278] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 11.468685][ T278] R10: 00007efc4ea72ef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: default_operstate:rfc2863_policy:linkwatch_do_dev:netdev_run_todo:rtnl_dellink