====================================== | xx__-> [ 85.555455][ T1184] ------------[ cut here ]------------ | [ 85.555734][ T1184] RTNL: assertion failed at net/core/link_watch.c (59) | [ 85.556025][ T1184] WARNING: CPU: 2 PID: 1184 at net/core/link_watch.c:59 default_operstate (net/core/link_watch.c:59 (discriminator 3)) | [ 85.556349][ T1184] Modules linked in: 8021q act_skbedit cls_flower sch_prio sch_ingress bridge stp llc vrf veth [ 85.557010][ T1184] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 85.557238][ T1184] RIP: 0010:default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 85.557423][ T1184] 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 a9 48 c7 c7 40 2b b7 a9 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 a9 mov $0xffffffffa9b72b00,%rsi 1d: 48 c7 c7 40 2b b7 a9 mov $0xffffffffa9b72b40,%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 [ 85.558045][ T1184] RSP: 0018:ffffc900014b71c8 EFLAGS: 00010286 [ 85.558278][ T1184] RAX: 0000000000000000 RBX: ffff888002061000 RCX: 1ffffffff547b58c [ 85.558560][ T1184] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 [ 85.558829][ T1184] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff547b58c [ 85.559418][ T1184] R10: 0000000000000003 R11: ffff888004d32300 R12: 0000000000000000 [ 85.559682][ T1184] R13: dffffc0000000000 R14: ffffc900014b6cb0 R15: ffff8880020615b0 [ 85.560000][ T1184] FS: 00007faa4732b800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000 [ 85.560317][ T1184] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.560543][ T1184] CR2: 00000000004e55a0 CR3: 000000000fb38005 CR4: 0000000000772ef0 [ 85.560813][ T1184] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.561090][ T1184] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.561362][ T1184] PKRU: 55555554 [ 85.561513][ T1184] Call Trace: [ 85.561653][ T1184] [ 85.561756][ T1184] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 85.561952][ T1184] ? __warn (kernel/panic.c:748) [ 85.562095][ T1184] ? 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) [ 85.562281][ T1184] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 85.562486][ T1184] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 85.562673][ T1184] ? handle_bug (arch/x86/kernel/traps.c:285) [ 85.562812][ T1184] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [ 85.563020][ T1184] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) [ 85.563215][ T1184] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 85.563398][ T1184] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 85.563575][ T1184] rfc2863_policy (net/core/link_watch.c:78) [ 85.563765][ T1184] linkwatch_do_dev (net/core/link_watch.c:180) [ 85.563961][ T1184] netdev_run_todo (net/core/dev.c:10894 (discriminator 2)) [ 85.564159][ T1184] ? __pfx_netdev_run_todo (net/core/dev.c:10867) [ 85.564357][ T1184] rtnl_dellink (net/core/rtnetlink.c:3528) [ 85.564542][ T1184] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [ 85.564773][ T1184] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 85.564993][ T1184] ? __lock_release (kernel/locking/lockdep.c:5525) [ 85.565188][ T1184] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [ 85.565387][ T1184] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 85.565581][ T1184] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 85.565768][ T1184] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [ 85.565960][ T1184] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [ 85.566153][ T1184] rtnetlink_rcv_msg (net/core/rtnetlink.c:6902) [ 85.566337][ T1184] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [ 85.566518][ T1184] ? 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) [ 85.566701][ T1184] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 85.566848][ T1184] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 85.567052][ T1184] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 85.567246][ T1184] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [ 85.567429][ T1184] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 85.567625][ T1184] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 85.567815][ T1184] ? 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) [ 85.568019][ T1184] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 85.568205][ T1184] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 85.568399][ T1184] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 85.568592][ T1184] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 85.568779][ T1184] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 85.568979][ T1184] ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2594) [ 85.569171][ T1184] ? __pfx_____sys_sendmsg (net/socket.c:2540) [ 85.569355][ T1184] ? __pfx_copy_msghdr_from_user (net/socket.c:2520) [ 85.569586][ T1184] ___sys_sendmsg (net/socket.c:2650) [ 85.569767][ T1184] ? __pfx____sys_sendmsg (net/socket.c:2637) [ 85.569968][ T1184] ? kasan_save_stack (mm/kasan/common.c:49) [ 85.570154][ T1184] ? kasan_save_stack (mm/kasan/common.c:48) [ 85.570338][ T1184] ? __kasan_record_aux_stack (mm/kasan/generic.c:544) [ 85.570524][ T1184] ? __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) [ 85.570755][ T1184] ? __x64_sys_close (fs/open.c:1557 fs/open.c:1539 fs/open.c:1539) [ 85.570945][ T1184] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 85.571140][ T1184] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 85.571372][ T1184] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 85.571565][ T1184] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 85.571748][ T1184] ? __lock_release (kernel/locking/lockdep.c:5525) [ 85.571948][ T1184] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2058 arch/x86/mm/physaddr.c:65) [ 85.572135][ T1184] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 85.572335][ T1184] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 85.572519][ T1184] __sys_sendmsg (net/socket.c:2680) [ 85.572701][ T1184] ? __pfx___sys_sendmsg (net/socket.c:2665) [ 85.572890][ T1184] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4643) [ 85.573139][ T1184] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 85.573320][ T1184] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 85.573557][ T1184] RIP: 0033:0x7faa475379a7 [ 85.573797][ T1184] 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) [ 85.574419][ T1184] RSP: 002b:00007ffc9717a3f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 85.574684][ T1184] RAX: ffffffffffffffda RBX: 00007ffc9717ab20 RCX: 00007faa475379a7 [ 85.574965][ T1184] RDX: 0000000000000000 RSI: 00007ffc9717a460 RDI: 0000000000000005 [ 85.575235][ T1184] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 85.575514][ T1184] R10: 00007faa473f5ef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: default_operstate:rfc2863_policy:linkwatch_do_dev:netdev_run_todo:rtnl_dellink