====================================== | # 73.12 [+0.00] [ 7.986484] GACT probability NOT on | # 73.12 [+0.00] [ 7.987846] tc (335) used greatest stack depth: 11840 bytes left | # 73.13 [+0.00] [ 10.280433] Mirror/redirect action on | # 73.13 [+0.00] [ 31.234648] irq 51: nobody cared (try booting with the "irqpoll" option) # 73.13 [+0.00] [ 31.234807] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 # 73.13 [+0.00] [ 31.234808] Call Trace: # 73.13 [+0.00] [ 31.234814] # 73.14 [+0.00] [ 31.234821] dump_stack_lvl (lib/dump_stack.c:123) # 73.14 [+0.00] [ 31.234836] __report_bad_irq (kernel/irq/spurious.c:170) # 73.14 [+0.00] [ 31.234841] note_interrupt (kernel/irq/spurious.c:372) # 73.14 [+0.00] [ 31.234843] handle_irq_event (kernel/irq/handle.c:245 kernel/irq/handle.c:257) # 73.14 [+0.00] [ 31.234848] handle_edge_irq (kernel/irq/chip.c:857) # 73.14 [+0.00] [ 31.234851] __common_interrupt (./include/asm-generic/irq_regs.h:29 arch/x86/kernel/irq.c:328) # 73.14 [+0.00] [ 31.234856] common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14)) # 73.14 [+0.00] [ 31.234861] # 73.14 [+0.00] [ 31.234861] # 73.15 [+0.00] [ 31.234862] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688) # 73.15 [+0.00] [ 31.234866] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) # 73.15 [+0.00] [ 31.234872] Code: f3 00 74 01 c3 0f 1f 44 00 00 c3 0f 1f 00 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d f4 f1 f3 00 <74> 01 c3 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f All code ======== 0: f3 00 74 01 c3 repz add %dh,-0x3d(%rcx,%rax,1) 5: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) a: c3 ret b: 0f 1f 00 nopl (%rax) e: f3 0f 1e fa endbr64 12: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 17: c6 07 00 movb $0x0,(%rdi) 1a: f7 c6 00 02 00 00 test $0x200,%esi 20: 74 01 je 0x23 22: fb sti 23: 65 ff 0d f4 f1 f3 00 decl %gs:0xf3f1f4(%rip) # 0xf3f21e 2a:* 74 01 je 0x2d <-- trapping instruction 2c: c3 ret 2d: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 32: c3 ret 33: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 3a: 00 00 00 00 3e: f3 repz 3f: 0f .byte 0xf Code starting with the faulting instruction =========================================== 0: 74 01 je 0x3 2: c3 ret 3: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 8: c3 ret 9: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 10: 00 00 00 00 14: f3 repz 15: 0f .byte 0xf # 73.15 [+0.01] [ 31.234874] RSP: 0018:ffffa3794054fd40 EFLAGS: 00000286 # 73.16 [+0.00] [ 31.234878] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000017 # 73.16 [+0.00] [ 31.234879] RDX: ffffffffa93681b8 RSI: 0000000000000282 RDI: ffffffffaa6f3380 # 73.16 [+0.00] [ 31.234880] RBP: ffff8d7082070000 R08: 000000075aada933 R09: 0000000000000001 # 73.16 [+0.00] [ 31.234881] R10: ffff8d708201fdf8 R11: 0000000000000000 R12: 0000000000000001 # 73.16 [+0.00] [ 31.234882] R13: ffffffffaa6f3380 R14: 0000000000000282 R15: ffffa3794049d000 # 73.17 [+0.00] [ 31.234884] ? rpm_suspend (./arch/x86/include/asm/jump_label.h:36 ./include/trace/events/rpm.h:84 drivers/base/power/runtime.c:744) # 73.17 [+0.00] [ 31.234889] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:92 drivers/tty/serial/serial_core.c:88 drivers/tty/serial/serial_core.c:634) # 73.17 [+0.00] [ 31.234896] n_tty_write (drivers/tty/n_tty.c:561 drivers/tty/n_tty.c:2377) # 73.17 [+0.00] [ 31.234901] ? swake_up_all (kernel/sched/wait.c:458) # 73.17 [+0.00] [ 31.234905] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1006 drivers/tty/tty_io.c:1081) # 73.17 [+0.00] [ 31.234908] vfs_write (fs/read_write.c:594 fs/read_write.c:686) # 73.17 [+0.00] [ 31.234920] ksys_write (fs/read_write.c:738) # 73.17 [+0.00] [ 31.234922] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) # 73.18 [+0.00] [ 31.234925] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) # 73.18 [+0.00] [ 31.234927] RIP: 0033:0x7fc9d92b1257 # 73.18 [+0.00] [ 31.234930] Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 All code ======== 0: 0f 00 (bad) 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 b7 jmp 0xffffffffffffffc7 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 01 00 00 00 mov $0x1,%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: 48 89 54 24 18 mov %rdx,0x18(%rsp) 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 74 24 je 0x64 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: 48 89 54 24 18 mov %rdx,0x18(%rsp) 12: 48 rex.W 13: 89 .byte 0x89 14: 74 24 je 0x3a # 73.18 [+0.01] [ 31.234931] RSP: 002b:00007ffdbac91178 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # 73.19 [+0.00] [ 31.234933] RAX: ffffffffffffffda RBX: 0000563348ac40e0 RCX: 00007fc9d92b1257 # 73.19 [+0.00] [ 31.234934] RDX: 0000000000000001 RSI: 0000563348ac40e0 RDI: 0000000000000001 # 73.19 [+0.00] [ 31.234936] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 # 73.19 [+0.00] [ 31.234936] R10: 0000000000000001 R11: 0000000000000246 R12: 0000563348ab05a0 # 73.19 [+0.00] [ 31.234938] R13: 0000563348a912a0 R14: 0000000000000001 R15: 0000563348ab05a0 | xx__-> [ 7.986484] GACT probability NOT on | [ 7.987846] tc (335) used greatest stack depth: 11840 bytes left | [ 10.280433] Mirror/redirect action on | [ 31.234648] irq 51: nobody cared (try booting with the "irqpoll" option) [ 31.234807] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.234808] Call Trace: [ 31.234814] [ 31.234821] dump_stack_lvl (lib/dump_stack.c:123) [ 31.234836] __report_bad_irq (kernel/irq/spurious.c:170) [ 31.234841] note_interrupt (kernel/irq/spurious.c:372) [ 31.234843] handle_irq_event (kernel/irq/handle.c:245 kernel/irq/handle.c:257) [ 31.234848] handle_edge_irq (kernel/irq/chip.c:857) [ 31.234851] __common_interrupt (./include/asm-generic/irq_regs.h:29 arch/x86/kernel/irq.c:328) [ 31.234856] common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14)) [ 31.234861] [ 31.234861] [ 31.234862] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688) [ 31.234866] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) [ 31.234872] Code: f3 00 74 01 c3 0f 1f 44 00 00 c3 0f 1f 00 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d f4 f1 f3 00 <74> 01 c3 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f All code ======== 0: f3 00 74 01 c3 repz add %dh,-0x3d(%rcx,%rax,1) 5: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) a: c3 ret b: 0f 1f 00 nopl (%rax) e: f3 0f 1e fa endbr64 12: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 17: c6 07 00 movb $0x0,(%rdi) 1a: f7 c6 00 02 00 00 test $0x200,%esi 20: 74 01 je 0x23 22: fb sti 23: 65 ff 0d f4 f1 f3 00 decl %gs:0xf3f1f4(%rip) # 0xf3f21e 2a:* 74 01 je 0x2d <-- trapping instruction 2c: c3 ret 2d: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 32: c3 ret 33: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 3a: 00 00 00 00 3e: f3 repz 3f: 0f .byte 0xf Code starting with the faulting instruction =========================================== 0: 74 01 je 0x3 2: c3 ret 3: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 8: c3 ret 9: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 10: 00 00 00 00 14: f3 repz 15: 0f .byte 0xf [ 31.234874] RSP: 0018:ffffa3794054fd40 EFLAGS: 00000286 [ 31.234878] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000017 [ 31.234879] RDX: ffffffffa93681b8 RSI: 0000000000000282 RDI: ffffffffaa6f3380 [ 31.234880] RBP: ffff8d7082070000 R08: 000000075aada933 R09: 0000000000000001 [ 31.234881] R10: ffff8d708201fdf8 R11: 0000000000000000 R12: 0000000000000001 [ 31.234882] R13: ffffffffaa6f3380 R14: 0000000000000282 R15: ffffa3794049d000 [ 31.234884] ? rpm_suspend (./arch/x86/include/asm/jump_label.h:36 ./include/trace/events/rpm.h:84 drivers/base/power/runtime.c:744) [ 31.234889] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:92 drivers/tty/serial/serial_core.c:88 drivers/tty/serial/serial_core.c:634) [ 31.234896] n_tty_write (drivers/tty/n_tty.c:561 drivers/tty/n_tty.c:2377) [ 31.234901] ? swake_up_all (kernel/sched/wait.c:458) [ 31.234905] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1006 drivers/tty/tty_io.c:1081) [ 31.234908] vfs_write (fs/read_write.c:594 fs/read_write.c:686) [ 31.234920] ksys_write (fs/read_write.c:738) [ 31.234922] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 31.234925] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 31.234927] RIP: 0033:0x7fc9d92b1257 [ 31.234930] Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 All code ======== 0: 0f 00 (bad) 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 b7 jmp 0xffffffffffffffc7 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 01 00 00 00 mov $0x1,%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: 48 89 54 24 18 mov %rdx,0x18(%rsp) 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 74 24 je 0x64 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: 48 89 54 24 18 mov %rdx,0x18(%rsp) 12: 48 rex.W 13: 89 .byte 0x89 14: 74 24 je 0x3a [ 31.234931] RSP: 002b:00007ffdbac91178 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 31.234933] RAX: ffffffffffffffda RBX: 0000563348ac40e0 RCX: 00007fc9d92b1257 [ 31.234934] RDX: 0000000000000001 RSI: 0000563348ac40e0 RDI: 0000000000000001 [ 31.234936] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 31.234936] R10: 0000000000000001 R11: 0000000000000246 R12: 0000563348ab05a0 [ 31.234938] R13: 0000563348a912a0 R14: 0000000000000001 R15: 0000563348ab05a0 | [ 73.503999] ------------[ cut here ]------------ | [ 73.504188] refcount_t: underflow; use-after-free. | [ 73.504279] WARNING: CPU: 2 PID: 1734 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) | [ 73.504382] Modules linked in: act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_gact cls_flower sch_ingress vrf veth [ 73.504682] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 73.504770] RIP: 0010:refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 73.504841] Code: a9 e8 18 df ba ff 90 0f 0b 90 90 c3 80 3d f9 da eb 00 00 75 89 c6 05 f0 da eb 00 01 90 48 c7 c7 28 e0 b1 a9 e8 f5 de ba ff 90 <0f> 0b 90 90 c3 80 3d d4 da eb 00 00 0f 85 62 ff ff ff c6 05 c7 da All code ======== 0: a9 e8 18 df ba test $0xbadf18e8,%eax 5: ff 90 0f 0b 90 90 call *-0x6f6ff4f1(%rax) b: c3 ret c: 80 3d f9 da eb 00 00 cmpb $0x0,0xebdaf9(%rip) # 0xebdb0c 13: 75 89 jne 0xffffffffffffff9e 15: c6 05 f0 da eb 00 01 movb $0x1,0xebdaf0(%rip) # 0xebdb0c 1c: 90 nop 1d: 48 c7 c7 28 e0 b1 a9 mov $0xffffffffa9b1e028,%rdi 24: e8 f5 de ba ff call 0xffffffffffbadf1e 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: c3 ret 2f: 80 3d d4 da eb 00 00 cmpb $0x0,0xebdad4(%rip) # 0xebdb0a 36: 0f 85 62 ff ff ff jne 0xffffffffffffff9e 3c: c6 .byte 0xc6 3d: 05 .byte 0x5 3e: c7 (bad) 3f: da .byte 0xda Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: c3 ret 5: 80 3d d4 da eb 00 00 cmpb $0x0,0xebdad4(%rip) # 0xebdae0 c: 0f 85 62 ff ff ff jne 0xffffffffffffff74 12: c6 .byte 0xc6 13: 05 .byte 0x5 14: c7 (bad) 15: da .byte 0xda [ 73.505062] RSP: 0018:ffffa379403cb730 EFLAGS: 00010282 [ 73.505130] RAX: 0000000000000000 RBX: ffffa379403cb740 RCX: 00000000ffffdfff [ 73.505221] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 73.505298] RBP: ffffa379403cb248 R08: ffffffffa9f56a28 R09: 00000000ffffdfff [ 73.505386] R10: ffffffffa9e76a40 R11: ffffffffa9f26a40 R12: dead000000000122 [ 73.505537] R13: 00000000fffc8abd R14: 0000000000000001 R15: ffff8d7085d53000 [ 73.505626] FS: 00007f3db874d800(0000) GS:ffff8d71146d9000(0000) knlGS:0000000000000000 [ 73.505738] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.505819] CR2: 0000562b28672454 CR3: 0000000009724001 CR4: 0000000000772ef0 [ 73.505905] PKRU: 55555554 [ 73.505957] Call Trace: [ 73.506028] [ 73.506078] netdev_run_todo (./include/linux/list.h:381 net/core/dev.c:11670) [ 73.506152] rtnl_dellink (net/core/rtnetlink.c:3580) [ 73.506226] ? virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1473) [ 73.506307] ? netdev_run_todo (./include/linux/list.h:381 net/core/dev.c:11653) [ 73.506374] ? rtnl_bridge_getlink (net/core/rtnetlink.c:3536) [ 73.506460] rtnetlink_rcv_msg (net/core/rtnetlink.c:6959) [ 73.506551] ? get_page_from_freelist (mm/page_alloc.c:1226 mm/page_alloc.c:1848 mm/page_alloc.c:1858 mm/page_alloc.c:3884) [ 73.506663] ? rtnl_calcit.isra.0 (net/core/rtnetlink.c:6861) [ 73.506737] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 73.506829] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 73.506885] ? __alloc_skb (net/core/skbuff.c:690) [ 73.506947] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 73.507040] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 73.507106] ? copy_msghdr_from_user (net/socket.c:2570) [ 73.507180] ___sys_sendmsg (net/socket.c:2686) [ 73.507243] ? do_wp_page (./include/linux/mmu_notifier.h:468 mm/memory.c:3786 mm/memory.c:4140) [ 73.507312] ? nfulnl_rcv_nl_event (net/netfilter/nfnetlink_log.c:836) [ 73.507386] ? fsnotify_grab_connector (fs/notify/mark.c:709) [ 73.507460] ? fsnotify_destroy_marks (fs/notify/mark.c:937) [ 73.507537] __sys_sendmsg (net/socket.c:2716) [ 73.507600] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 73.507666] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 73.507739] RIP: 0033:0x7f3db891b1d7 [ 73.507804] Code: 0e 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: 0e (bad) 1: 00 f7 add %dh,%bh 3: d8 64 89 02 fsubs 0x2(%rcx,%rcx,4) 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) [ 73.507992] RSP: 002b:00007ffebef89598 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.508096] RAX: ffffffffffffffda RBX: 00007ffebef89cc0 RCX: 00007f3db891b1d7 [ 73.508189] RDX: 0000000000000000 RSI: 00007ffebef89600 RDI: 0000000000000005 [ 73.508289] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 73.508380] R10: 00007f3db8817f60 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __report_bad_irq:note_interrupt:handle_irq_event:handle_edge_irq:__common_interrupt refcount_warn_saturate:netdev_run_todo:rtnl_dellink:rtnetlink_rcv_msg:netlink_rcv_skb