====================================== | # 97.96 [+0.00] [ 7.911902] GACT probability NOT on | # 97.96 [+0.00] [ 7.913237] tc (335) used greatest stack depth: 11840 bytes left | # 97.96 [+0.00] [ 10.225008] Mirror/redirect action on | # 97.96 [+0.00] [ 91.586307] irq 51: nobody cared (try booting with the "irqpoll" option) # 97.97 [+0.00] [ 91.586490] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 # 97.97 [+0.00] [ 91.586492] Call Trace: # 97.97 [+0.00] [ 91.586495] # 97.97 [+0.00] [ 91.586498] dump_stack_lvl (lib/dump_stack.c:123) # 97.97 [+0.00] [ 91.586507] __report_bad_irq (kernel/irq/spurious.c:170) # 97.97 [+0.00] [ 91.586514] note_interrupt (kernel/irq/spurious.c:372) # 97.98 [+0.00] [ 91.586516] handle_irq_event (kernel/irq/handle.c:245 kernel/irq/handle.c:257) # 97.98 [+0.00] [ 91.586523] handle_edge_irq (kernel/irq/chip.c:857) # 97.98 [+0.00] [ 91.586526] __common_interrupt (./include/asm-generic/irq_regs.h:29 arch/x86/kernel/irq.c:328) # 97.98 [+0.00] [ 91.586532] common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14)) # 97.98 [+0.00] [ 91.586538] # 97.98 [+0.00] [ 91.586538] # 97.98 [+0.00] [ 91.586539] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688) # 97.98 [+0.00] [ 91.586543] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) # 97.99 [+0.00] [ 91.586547] 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 # 97.99 [+0.01] [ 91.586549] RSP: 0018:ffffa0dc405a7d40 EFLAGS: 00000286 # 97.99 [+0.00] [ 91.586550] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000017 # 98.00 [+0.00] [ 91.586551] RDX: ffffffff8d7681b8 RSI: 0000000000000282 RDI: ffffffff8eaf3380 # 98.00 [+0.00] [ 91.586552] RBP: ffff900981f74000 R08: 0000001567c684cf R09: 0000000000000001 # 98.00 [+0.00] [ 91.586553] R10: ffff900981d39df8 R11: 0000000000000000 R12: 0000000000000001 # 98.00 [+0.00] [ 91.586554] R13: ffffffff8eaf3380 R14: 0000000000000282 R15: ffffa0dc404ed000 # 98.00 [+0.00] [ 91.586555] ? rpm_suspend (./arch/x86/include/asm/jump_label.h:36 ./include/trace/events/rpm.h:84 drivers/base/power/runtime.c:744) # 98.01 [+0.00] [ 91.586562] 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) # 98.01 [+0.00] [ 91.586569] n_tty_write (drivers/tty/n_tty.c:561 drivers/tty/n_tty.c:2377) # 98.01 [+0.00] [ 91.586576] ? swake_up_all (kernel/sched/wait.c:458) # 98.01 [+0.00] [ 91.586581] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1006 drivers/tty/tty_io.c:1081) # 98.01 [+0.00] [ 91.586584] vfs_write (fs/read_write.c:594 fs/read_write.c:686) # 98.01 [+0.00] [ 91.586591] ksys_write (fs/read_write.c:738) # 98.01 [+0.00] [ 91.586594] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) # 98.01 [+0.00] [ 91.586597] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) # 98.02 [+0.00] [ 91.586600] RIP: 0033:0x7f42d17cd257 # 98.02 [+0.00] [ 91.586603] 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 # 98.02 [+0.01] [ 91.586604] RSP: 002b:00007ffeaf9a7a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # 98.02 [+0.00] [ 91.586607] RAX: ffffffffffffffda RBX: 0000556e7e12e0e0 RCX: 00007f42d17cd257 # 98.03 [+0.00] [ 91.586608] RDX: 0000000000000001 RSI: 0000556e7e12e0e0 RDI: 0000000000000001 # 98.03 [+0.00] [ 91.586609] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 # 98.03 [+0.00] [ 91.586611] R10: 0000000000000001 R11: 0000000000000246 R12: 0000556e7e11a5a0 # 98.03 [+0.00] [ 91.586612] R13: 0000556e7e0fb2a0 R14: 0000000000000001 R15: 0000556e7e11a5a0 | xx__-> [ 7.911902] GACT probability NOT on | [ 7.913237] tc (335) used greatest stack depth: 11840 bytes left | [ 10.225008] Mirror/redirect action on | [ 91.586307] irq 51: nobody cared (try booting with the "irqpoll" option) [ 91.586490] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 91.586492] Call Trace: [ 91.586495] [ 91.586498] dump_stack_lvl (lib/dump_stack.c:123) [ 91.586507] __report_bad_irq (kernel/irq/spurious.c:170) [ 91.586514] note_interrupt (kernel/irq/spurious.c:372) [ 91.586516] handle_irq_event (kernel/irq/handle.c:245 kernel/irq/handle.c:257) [ 91.586523] handle_edge_irq (kernel/irq/chip.c:857) [ 91.586526] __common_interrupt (./include/asm-generic/irq_regs.h:29 arch/x86/kernel/irq.c:328) [ 91.586532] common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14)) [ 91.586538] [ 91.586538] [ 91.586539] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688) [ 91.586543] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) [ 91.586547] 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 [ 91.586549] RSP: 0018:ffffa0dc405a7d40 EFLAGS: 00000286 [ 91.586550] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000017 [ 91.586551] RDX: ffffffff8d7681b8 RSI: 0000000000000282 RDI: ffffffff8eaf3380 [ 91.586552] RBP: ffff900981f74000 R08: 0000001567c684cf R09: 0000000000000001 [ 91.586553] R10: ffff900981d39df8 R11: 0000000000000000 R12: 0000000000000001 [ 91.586554] R13: ffffffff8eaf3380 R14: 0000000000000282 R15: ffffa0dc404ed000 [ 91.586555] ? rpm_suspend (./arch/x86/include/asm/jump_label.h:36 ./include/trace/events/rpm.h:84 drivers/base/power/runtime.c:744) [ 91.586562] 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) [ 91.586569] n_tty_write (drivers/tty/n_tty.c:561 drivers/tty/n_tty.c:2377) [ 91.586576] ? swake_up_all (kernel/sched/wait.c:458) [ 91.586581] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1006 drivers/tty/tty_io.c:1081) [ 91.586584] vfs_write (fs/read_write.c:594 fs/read_write.c:686) [ 91.586591] ksys_write (fs/read_write.c:738) [ 91.586594] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 91.586597] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 91.586600] RIP: 0033:0x7f42d17cd257 [ 91.586603] 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 [ 91.586604] RSP: 002b:00007ffeaf9a7a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 91.586607] RAX: ffffffffffffffda RBX: 0000556e7e12e0e0 RCX: 00007f42d17cd257 [ 91.586608] RDX: 0000000000000001 RSI: 0000556e7e12e0e0 RDI: 0000000000000001 [ 91.586609] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 91.586611] R10: 0000000000000001 R11: 0000000000000246 R12: 0000556e7e11a5a0 [ 91.586612] R13: 0000556e7e0fb2a0 R14: 0000000000000001 R15: 0000556e7e11a5a0 | [ 98.277730] ------------[ cut here ]------------ | [ 98.277815] refcount_t: underflow; use-after-free. | [ 98.277916] WARNING: CPU: 2 PID: 1729 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) | [ 98.278044] 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 [ 98.278330] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 98.278418] RIP: 0010:refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 98.278493] Code: 8d 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 f1 8d 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: 8d lea (bad),%ebp 1: e8 18 df ba ff call 0xffffffffffbadf1e 6: 90 nop 7: 0f 0b ud2 9: 90 nop a: 90 nop 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 f1 8d mov $0xffffffff8df1e028,%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 [ 98.278695] RSP: 0018:ffffa0dc4037b730 EFLAGS: 00010282 [ 98.278767] RAX: 0000000000000000 RBX: ffffa0dc4037b740 RCX: 00000000ffffdfff [ 98.278864] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 98.278960] RBP: ffffa0dc4037b248 R08: ffffffff8e356a28 R09: 00000000ffffdfff [ 98.279058] R10: ffffffff8e276a40 R11: ffffffff8e326a40 R12: dead000000000122 [ 98.279149] R13: 00000000fffceb81 R14: 0000000000000001 R15: ffff900984c65000 [ 98.279247] FS: 00007f39c24b5800(0000) GS:ffff900a302d9000(0000) knlGS:0000000000000000 [ 98.279348] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.279433] CR2: 0000562d8cd18310 CR3: 0000000003356002 CR4: 0000000000772ef0 [ 98.279530] PKRU: 55555554 [ 98.279581] Call Trace: [ 98.279628] [ 98.279680] netdev_run_todo (./include/linux/list.h:381 net/core/dev.c:11670) [ 98.279755] rtnl_dellink (net/core/rtnetlink.c:3580) [ 98.279825] ? __rmqueue_pcplist (mm/page_alloc.c:3271) [ 98.279903] ? rtnl_bridge_getlink (net/core/rtnetlink.c:3536) [ 98.279975] rtnetlink_rcv_msg (net/core/rtnetlink.c:6959) [ 98.280041] ? get_page_from_freelist (mm/page_alloc.c:1226 mm/page_alloc.c:1848 mm/page_alloc.c:1858 mm/page_alloc.c:3884) [ 98.280115] ? rtnl_calcit.isra.0 (net/core/rtnetlink.c:6861) [ 98.280200] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 98.280271] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 98.280330] ? __alloc_skb (net/core/skbuff.c:690) [ 98.280393] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 98.280460] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 98.280528] ? copy_msghdr_from_user (net/socket.c:2570) [ 98.280601] ___sys_sendmsg (net/socket.c:2686) [ 98.280668] ? do_wp_page (./include/linux/mmu_notifier.h:468 mm/memory.c:3786 mm/memory.c:4140) [ 98.280740] ? nfulnl_rcv_nl_event (net/netfilter/nfnetlink_log.c:836) [ 98.280829] ? fsnotify_grab_connector (fs/notify/mark.c:709) [ 98.280911] ? fsnotify_destroy_marks (fs/notify/mark.c:937) [ 98.280988] __sys_sendmsg (net/socket.c:2716) [ 98.281063] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 98.281142] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 98.281217] RIP: 0033:0x7f39c26831d7 [ 98.281279] 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) [ 98.281475] RSP: 002b:00007fffbe555d78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 98.281584] RAX: ffffffffffffffda RBX: 00007fffbe5564a0 RCX: 00007f39c26831d7 [ 98.281689] RDX: 0000000000000000 RSI: 00007fffbe555de0 RDI: 0000000000000005 [ 98.281782] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 98.281878] R10: 00007f39c257ff60 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