Comment 1 for bug 1399577

Additional information:

Dec 5 09:51:12 bka-001-08 kernel: [240362.565887] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
Dec 5 09:51:12 bka-001-08 kernel: [240362.565955] IP: [<ffffffff8161fb69>] netif_napi_del+0x19/0x60
Dec 5 09:51:12 bka-001-08 kernel: [240362.566001] PGD 215429c067 PUD 3fbdf48067 PMD 0
Dec 5 09:51:12 bka-001-08 kernel: [240362.566042] Oops: 0002 [#1] SMP
Dec 5 09:51:12 bka-001-08 kernel: [240362.566079] Modules linked in: vrouter(OX) veth vhost_net vhost macvtap macvlan joydev hid_generic usbhid hid ipt_MASQUERADE ipt_REJECT xt_CHECKSUM bridge ip6table_filter ip6_tables ebtable_nat ebtables xt_LOG xt_limit xt_tcpudp xt_comment xt_multiport xt_conntrack iptable_filter iptable_mangle iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables nbd ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi dm_crypt x86_pkg_temp_thermal intel_powerclamp coretemp gpio_ich kvm_intel crct10dif_pclmul kvm crc32_pclmul ghash_clmulni_intel dm_multipath aesni_intel scsi_dh aes_x86_64 lrw ipmi_devintf gf128mul ioatdma glue_helper bonding ablk_helper serio_raw 8021q hpwdt hpilo cryptd garp ipmi_si acpi_power_meter stp lpc_ich mrp llc sch_fq_codel lp mac_hid parport xfs btrfs xor raid6_pq libcrc32c ixgbe tg3 psmouse dca ptp pps_core hpsa mdio wmi [last unloaded: vrouter]