Debian GNU/Linux 7 syzkaller ttyS0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 38.395107] hrtimer: interrupt took 1198632 ns executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 42.024253] dev_remove_pack: ffff88006dbf0900 not found executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 42.126220] ================================================================== [ 42.126767] BUG: KASAN: use-after-free in fanout_demux_rollover+0x4a5/0x4d0 [ 42.127401] Read of size 4 at addr ffff88006dbf08a4 by task ksoftirqd/0/8 [ 42.128051] [ 42.128229] CPU: 0 PID: 8 Comm: ksoftirqd/0 Not tainted 4.13.0-next-20170911+ #1 [ 42.128928] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 42.129706] Call Trace: [ 42.129960] dump_stack+0x194/0x257 [ 42.130312] ? arch_local_irq_restore+0x53/0x53 [ 42.130753] ? show_regs_print_info+0x65/0x65 [ 42.131189] ? fanout_demux_rollover+0x4a5/0x4d0 [ 42.131645] print_address_description+0x73/0x250 [ 42.132139] ? fanout_demux_rollover+0x4a5/0x4d0 [ 42.132609] kasan_report+0x24e/0x340 [ 42.132986] __asan_report_load4_noabort+0x14/0x20 [ 42.133752] fanout_demux_rollover+0x4a5/0x4d0 [ 42.134509] ? skb_split+0x1310/0x1310 [ 42.134819] packet_rcv_fanout+0x52e/0x7d0 [ 42.135144] ? compat_packet_setsockopt+0x140/0x140 [ 42.135532] ? refcount_add+0x60/0x60 executing program [ 42.135827] ? packet_rcv_fanout+0x7d0/0x7d0 [ 42.136362] __netif_receive_skb_core+0xc12/0x33d0 [ 42.136763] ? unwind_next_frame.part.6+0x1ae/0xc70 [ 42.137177] ? nf_ingress+0x9f0/0x9f0 [ 42.137478] ? __read_once_size_nocheck.constprop.8+0x10/0x10 [ 42.137975] ? ret_from_fork+0x2a/0x40 [ 42.138312] ? check_noncircular+0x20/0x20 [ 42.138753] ? unwind_next_frame.part.6+0x1ae/0xc70 [ 42.139341] ? unwind_dump+0x4c0/0x4c0 [ 42.139787] ? unwind_dump+0x4c0/0x4c0 [ 42.140261] ? find_held_lock+0x39/0x1d0 [ 42.140748] ? lock_downgrade+0x990/0x990 [ 42.141237] ? lock_acquire+0x1d5/0x580 [ 42.141696] ? netif_receive_skb_internal+0x1d7/0x670 [ 42.142109] ? find_held_lock+0x39/0x1d0 [ 42.142414] ? pvclock_read_flags+0x160/0x160 [ 42.142781] ? lock_downgrade+0x990/0x990 [ 42.143189] ? lock_acquire+0x1d5/0x580 [ 42.143496] ? netif_receive_skb_internal+0xa2/0x670 [ 42.143879] ? ktime_get_with_offset+0x2c1/0x420 [ 42.144243] ? lock_release+0xd70/0xd70 [ 42.144543] ? ktime_get+0x3a0/0x3a0 [ 42.144838] __netif_receive_skb+0x2c/0x1b0 [ 42.145165] ? __netif_receive_skb+0x2c/0x1b0 [ 42.145508] netif_receive_skb_internal+0x10b/0x670 [ 42.145880] ? __build_skb+0x9d/0x450 [ 42.146172] ? dev_cpu_dead+0xb00/0xb00 [ 42.146474] ? net_rx_action+0x1910/0x1910 [ 42.146794] ? kmem_cache_alloc+0x469/0x760 [ 42.147147] ? rcu_pm_notify+0xc0/0xc0 [ 42.147454] ? refcount_sub_and_test+0x115/0x1b0 [ 42.147799] ? skb_gro_reset_offset+0x17b/0x300 [ 42.148137] napi_gro_receive+0x3d0/0x500 [ 42.148468] ? dev_gro_receive+0x19b0/0x19b0 [ 42.148786] ? __alloc_pages_nodemask+0xd80/0xd80 [ 42.149124] ? eth_type_trans+0x2a3/0x650 [ 42.149454] ? rcu_pm_notify+0xc0/0xc0 [ 42.149734] ? eth_gro_receive+0x810/0x810 [ 42.150041] e1000_clean_rx_irq+0x58d/0x1330 [ 42.150374] ? e1000_clean_jumbo_rx_irq+0x27d0/0x27d0 [ 42.150783] ? dql_init+0x2e0/0x2e0 [ 42.151057] ? __dev_kfree_skb_any+0x8a/0xa0 executing program executing program [ 42.151374] ? e1000_unmap_and_free_tx_resource.isra.46+0x1eb/0x390 [ 42.152004] ? e1000_clean_jumbo_rx_irq+0x27d0/0x27d0 [ 42.152414] e1000_clean+0xb39/0x2610 [ 42.152719] ? e1000_unmap_and_free_tx_resource.isra.46+0x390/0x390 [ 42.153213] ? do_raw_spin_trylock+0x190/0x190 [ 42.153545] ? do_raw_spin_trylock+0x190/0x190 [ 42.153910] ? check_noncircular+0x20/0x20 [ 42.154231] ? rcu_pm_notify+0xc0/0xc0 [ 42.154611] ? try_to_wake_up+0x115/0x1850 [ 42.155026] ? net_rx_action+0x49b/0x1910 [ 42.155730] net_rx_action+0x792/0x1910 [ 42.156146] ? napi_complete_done+0x6c0/0x6c0 [ 42.156585] ? check_noncircular+0x20/0x20 [ 42.157007] ? lock_downgrade+0x990/0x990 [ 42.157406] ? rebalance_domains+0x126/0xcc0 [ 42.157837] ? find_held_lock+0x39/0x1d0 [ 42.158153] ? lock_downgrade+0x990/0x990 [ 42.158497] ? lock_acquire+0x1d5/0x580 [ 42.158875] ? finish_task_switch+0x1aa/0x740 [ 42.159307] ? do_raw_spin_trylock+0x190/0x190 [ 42.159740] ? lock_release+0xd70/0xd70 [ 42.160127] ? compat_start_thread+0x80/0x80 [ 42.160549] ? check_noncircular+0x20/0x20 [ 42.160954] ? _raw_spin_unlock_irq+0x27/0x70 [ 42.161386] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.161864] ? _raw_spin_unlock_irq+0x27/0x70 [ 42.162293] ? finish_task_switch+0x1d3/0x740 [ 42.162719] ? finish_task_switch+0x1aa/0x740 [ 42.163170] ? preempt_notifier_dec+0x20/0x20 [ 42.163618] ? __schedule+0x8f0/0x2070 [ 42.164006] ? rcu_pm_notify+0xc0/0xc0 [ 42.164407] __do_softirq+0x2bb/0xbd0 [ 42.164793] ? __softirqentry_text_start+0x8/0x8 [ 42.165254] ? retint_kernel+0x10/0x10 [ 42.165638] ? schedule+0x108/0x440 [ 42.165995] ? __schedule+0x2070/0x2070 [ 42.166392] ? rcu_note_context_switch+0x710/0x710 [ 42.166873] ? run_ksoftirqd+0x55/0x100 [ 42.167265] ? takeover_tasklets+0xa40/0xa40 [ 42.167582] run_ksoftirqd+0x50/0x100 [ 42.167861] smpboot_thread_fn+0x489/0x850 [ 42.168164] ? sort_range+0x30/0x30 [ 42.168437] ? __kthread_parkme+0xdf/0x240 [ 42.168737] ? __kthread_parkme+0x173/0x240 [ 42.169042] kthread+0x39c/0x470 [ 42.169260] ? sort_range+0x30/0x30 [ 42.169489] ? kthread_create_on_node+0x100/0x100 [ 42.169794] ret_from_fork+0x2a/0x40 [ 42.170039] [ 42.170148] Allocated by task 7067: [ 42.170380] save_stack_trace+0x16/0x20 [ 42.170738] save_stack+0x43/0xd0 [ 42.171078] kasan_kmalloc+0xad/0xe0 [ 42.171439] __kmalloc+0x162/0x760 [ 42.171782] sk_prot_alloc+0x101/0x2a0 [ 42.172166] sk_alloc+0x89/0x700 [ 42.172494] packet_create+0x169/0xb00 [ 42.172871] __sock_create+0x4d4/0x850 [ 42.173249] SyS_socket+0xeb/0x200 [ 42.173592] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 42.174060] [ 42.174218] Freed by task 7010: [ 42.174530] save_stack_trace+0x16/0x20 [ 42.174904] save_stack+0x43/0xd0 [ 42.175232] kasan_slab_free+0x71/0xc0 [ 42.175598] kfree+0xca/0x250 [ 42.175892] __sk_destruct+0x74a/0x910 [ 42.176269] sk_destruct+0x47/0x80 [ 42.176610] __sk_free+0x57/0x230 [ 42.177534] sk_free+0x2a/0x40 [ 42.177769] packet_release+0x859/0xd70 [ 42.178042] sock_release+0x8d/0x1e0 [ 42.178311] sock_close+0x16/0x20 [ 42.178557] __fput+0x333/0x7f0 [ 42.178792] ____fput+0x15/0x20 [ 42.179026] task_work_run+0x199/0x270 [ 42.179301] do_exit+0xa52/0x1b40 [ 42.179544] do_group_exit+0x149/0x400 [ 42.179816] SyS_exit_group+0x1d/0x20 [ 42.180102] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 42.180433] [ 42.180556] The buggy address belongs to the object at ffff88006dbf0140 [ 42.180556] which belongs to the cache kmalloc-2048 of size 2048 [ 42.181446] The buggy address is located 1892 bytes inside of [ 42.181446] 2048-byte region [ffff88006dbf0140, ffff88006dbf0940) [ 42.182296] The buggy address belongs to the page: [ 42.182646] page:ffffea0001b6fc00 count:1 mapcount:0 mapping:ffff88006dbf0140 index:0x0 compound_mapcount: 0 [ 42.183351] flags: 0x500000000008100(slab|head) [ 42.183692] raw: 0500000000008100 ffff88006dbf0140 0000000000000000 0000000100000003 [ 42.184237] raw: ffffea0001a884a0 ffffea0001a1a320 ffff88003e800c40 0000000000000000 [ 42.184772] page dumped because: kasan: bad access detected [ 42.185169] [ 42.185291] Memory state around the buggy address: [ 42.185640] ffff88006dbf0780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 42.186169] ffff88006dbf0800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 42.186692] >ffff88006dbf0880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 42.187241] ^ [ 42.187557] ffff88006dbf0900: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 42.188074] ffff88006dbf0980: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 42.188598] ================================================================== [ 42.189100] Disabling lock debugging due to kernel taint [ 42.189513] Kernel panic - not syncing: panic_on_warn set ... [ 42.189513] [ 42.190029] CPU: 0 PID: 8 Comm: ksoftirqd/0 Tainted: G B 4.13.0-next-20170911+ #1 [ 42.190587] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 42.191093] Call Trace: [ 42.191260] dump_stack+0x194/0x257 [ 42.191515] ? arch_local_irq_restore+0x53/0x53 [ 42.191856] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.192261] ? fanout_demux_rollover+0x470/0x4d0 [ 42.192753] panic+0x1e4/0x417 [ 42.193084] ? __warn+0x1d9/0x1d9 [ 42.193441] ? fanout_demux_rollover+0x4a5/0x4d0 [ 42.193775] kasan_end_report+0x50/0x50 [ 42.194092] kasan_report+0x137/0x340 [ 42.194367] __asan_report_load4_noabort+0x14/0x20 [ 42.194743] fanout_demux_rollover+0x4a5/0x4d0 [ 42.195236] ? skb_split+0x1310/0x1310 [ 42.195831] packet_rcv_fanout+0x52e/0x7d0 [ 42.196474] ? compat_packet_setsockopt+0x140/0x140 [ 42.197333] ? refcount_add+0x60/0x60 [ 42.199535] ? packet_rcv_fanout+0x7d0/0x7d0 [ 42.199973] __netif_receive_skb_core+0xc12/0x33d0 [ 42.201196] ? unwind_next_frame.part.6+0x1ae/0xc70 [ 42.201701] ? nf_ingress+0x9f0/0x9f0 [ 42.202051] ? __read_once_size_nocheck.constprop.8+0x10/0x10 [ 42.202558] ? ret_from_fork+0x2a/0x40 [ 42.202857] ? check_noncircular+0x20/0x20 [ 42.203171] ? unwind_next_frame.part.6+0x1ae/0xc70 [ 42.203594] ? unwind_dump+0x4c0/0x4c0 [ 42.203902] ? unwind_dump+0x4c0/0x4c0 [ 42.204229] ? find_held_lock+0x39/0x1d0 [ 42.204598] ? lock_downgrade+0x990/0x990 [ 42.204926] ? lock_acquire+0x1d5/0x580 [ 42.205250] ? netif_receive_skb_internal+0x1d7/0x670 [ 42.205702] ? find_held_lock+0x39/0x1d0 [ 42.206040] ? pvclock_read_flags+0x160/0x160 [ 42.206411] ? lock_downgrade+0x990/0x990 [ 42.206773] ? lock_acquire+0x1d5/0x580 [ 42.207108] ? netif_receive_skb_internal+0xa2/0x670 [ 42.207549] ? ktime_get_with_offset+0x2c1/0x420 [ 42.208083] ? lock_release+0xd70/0xd70 [ 42.208535] ? ktime_get+0x3a0/0x3a0 [ 42.208808] __netif_receive_skb+0x2c/0x1b0 [ 42.209143] ? __netif_receive_skb+0x2c/0x1b0 [ 42.209455] netif_receive_skb_internal+0x10b/0x670 [ 42.209803] ? __build_skb+0x9d/0x450 [ 42.210086] ? dev_cpu_dead+0xb00/0xb00 [ 42.210391] ? net_rx_action+0x1910/0x1910 [ 42.210837] ? kmem_cache_alloc+0x469/0x760 [ 42.211310] ? rcu_pm_notify+0xc0/0xc0 [ 42.211726] ? refcount_sub_and_test+0x115/0x1b0 [ 42.212254] ? skb_gro_reset_offset+0x17b/0x300 [ 42.212752] napi_gro_receive+0x3d0/0x500 [ 42.213193] ? dev_gro_receive+0x19b0/0x19b0 [ 42.213626] ? __alloc_pages_nodemask+0xd80/0xd80 [ 42.214138] ? eth_type_trans+0x2a3/0x650 [ 42.214565] ? rcu_pm_notify+0xc0/0xc0 [ 42.214934] ? eth_gro_receive+0x810/0x810 [ 42.215301] e1000_clean_rx_irq+0x58d/0x1330 [ 42.215643] ? e1000_clean_jumbo_rx_irq+0x27d0/0x27d0 [ 42.216035] ? dql_init+0x2e0/0x2e0 [ 42.219431] ? __dev_kfree_skb_any+0x8a/0xa0 [ 42.220726] ? e1000_unmap_and_free_tx_resource.isra.46+0x1eb/0x390 [ 42.221803] ? e1000_clean_jumbo_rx_irq+0x27d0/0x27d0 [ 42.222679] e1000_clean+0xb39/0x2610 [ 42.223340] ? e1000_unmap_and_free_tx_resource.isra.46+0x390/0x390 [ 42.224481] ? do_raw_spin_trylock+0x190/0x190 [ 42.225350] ? do_raw_spin_trylock+0x190/0x190 [ 42.226198] ? check_noncircular+0x20/0x20 [ 42.226968] ? rcu_pm_notify+0xc0/0xc0 [ 42.227500] ? try_to_wake_up+0x115/0x1850 [ 42.228307] ? net_rx_action+0x49b/0x1910 [ 42.229116] net_rx_action+0x792/0x1910 [ 42.229578] ? napi_complete_done+0x6c0/0x6c0 [ 42.230094] ? check_noncircular+0x20/0x20 [ 42.230431] ? lock_downgrade+0x990/0x990 [ 42.230750] ? rebalance_domains+0x126/0xcc0 [ 42.231188] ? find_held_lock+0x39/0x1d0 [ 42.231612] ? lock_downgrade+0x990/0x990 [ 42.232051] ? lock_acquire+0x1d5/0x580 [ 42.232755] ? finish_task_switch+0x1aa/0x740 [ 42.233201] ? do_raw_spin_trylock+0x190/0x190 [ 42.233546] ? lock_release+0xd70/0xd70 [ 42.233852] ? compat_start_thread+0x80/0x80 [ 42.234301] ? check_noncircular+0x20/0x20 [ 42.234716] ? _raw_spin_unlock_irq+0x27/0x70 [ 42.235271] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.235795] ? _raw_spin_unlock_irq+0x27/0x70 [ 42.236391] ? finish_task_switch+0x1d3/0x740 [ 42.236756] ? finish_task_switch+0x1aa/0x740 [ 42.237254] ? preempt_notifier_dec+0x20/0x20 [ 42.238235] ? __schedule+0x8f0/0x2070 [ 42.238775] ? rcu_pm_notify+0xc0/0xc0 [ 42.239147] __do_softirq+0x2bb/0xbd0 [ 42.239505] ? __softirqentry_text_start+0x8/0x8 [ 42.239937] ? retint_kernel+0x10/0x10 [ 42.241013] ? schedule+0x108/0x440 [ 42.241532] ? __schedule+0x2070/0x2070 [ 42.241953] ? rcu_note_context_switch+0x710/0x710 [ 42.242667] ? run_ksoftirqd+0x55/0x100 [ 42.242966] ? takeover_tasklets+0xa40/0xa40 [ 42.243323] run_ksoftirqd+0x50/0x100 [ 42.243731] smpboot_thread_fn+0x489/0x850 [ 42.244319] ? sort_range+0x30/0x30 [ 42.244872] ? __kthread_parkme+0xdf/0x240 [ 42.245328] ? __kthread_parkme+0x173/0x240 [ 42.245805] kthread+0x39c/0x470 [ 42.246164] ? sort_range+0x30/0x30 [ 42.246545] ? kthread_create_on_node+0x100/0x100 [ 42.247066] ret_from_fork+0x2a/0x40 [ 42.247537] Dumping ftrace buffer: [ 42.247804] (ftrace buffer empty) [ 42.248081] Kernel Offset: disabled [ 42.248413] Rebooting in 86400 seconds..