[Ubuntu 16.04] Help to flush kernel panics to console

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This bug was fixed in the package linux - 4.4.0-11.26

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linux (4.4.0-11.26) xenial; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1553391

  * Xenial update to v4.4.4 stable release (LP: #1553179)
    - af_iucv: Validate socket address length in iucv_sock_bind()
    - gro: Make GRO aware of lightweight tunnels.
    - net: dp83640: Fix tx timestamp overflow handling.
    - tunnels: Allow IPv6 UDP checksums to be correctly controlled.
    - lwt: fix rx checksum setting for lwt devices tunneling over ipv6
    - tcp: fix NULL deref in tcp_v4_send_ack()
    - af_unix: fix struct pid memory leak
    - pptp: fix illegal memory access caused by multiple bind()s
    - sctp: allow setting SCTP_SACK_IMMEDIATELY by the application
    - net: dsa: fix mv88e6xxx switches
    - tipc: fix connection abort during subscription cancel
    - inet: frag: Always orphan skbs inside ip_defrag()
    - switchdev: Require RTNL mutex to be held when sending FDB notifications
    - tcp: beware of alignments in tcp_get_info()
    - ipv6: enforce flowi6_oif usage in ip6_dst_lookup_tail()
    - ipv6/udp: use sticky pktinfo egress ifindex on connect()
    - ipv6: addrconf: Fix recursive spin lock call
    - ipv6: fix a lockdep splat
    - unix: correctly track in-flight fds in sending process user_struct
    - tcp: do not drop syn_recv on all icmp reports
    - net:Add sysctl_max_skb_frags
    - tg3: Fix for tg3 transmit queue 0 timed out when too many gso_segs
    - enic: increment devcmd2 result ring in case of timeout
    - sctp: translate network order to host order when users get a hmacid
    - net: Copy inner L3 and L4 headers as unaligned on GRE TEB
    - flow_dissector: Fix unaligned access in __skb_flow_dissector when used by
      eth_get_headlen
    - bpf: fix branch offset adjustment on backjumps after patching ctx expansion
    - bonding: Fix ARP monitor validation
    - ipv4: fix memory leaks in ip_cmsg_send() callers
    - af_unix: Don't set err in unix_stream_read_generic unless there was an error
    - af_unix: Guard against other == sk in unix_dgram_sendmsg
    - tipc: fix premature addition of node to lookup table
    - tcp: md5: release request socket instead of listener
    - qmi_wwan: add "4G LTE usb-modem U901"
    - net/mlx4_en: Count HW buffer overrun only once
    - net/mlx4_en: Avoid changing dev->features directly in run-time
    - l2tp: Fix error creating L2TP tunnels
    - pppoe: fix reference counting in PPPoE proxy
    - net_sched fix: reclassification needs to consider ether protocol changes
    - route: check and remove route cache when we get route
    - tcp/dccp: fix another race at listener dismantle
    - IFF_NO_QUEUE: Fix for drivers not calling ether_setup()
    - rtnl: RTM_GETNETCONF: fix wrong return value
    - tipc: unlock in error path
    - unix_diag: fix incorrect sign extension in unix_lookup_by_ino
    - sctp: Fix port hash table size computation
    - ext4: fix bh->b_state corruption
    - ARM: debug-ll: fix BCM63xx entry for multiplatform
    - arm64: errata: Add -mpc-relative-literal-loads to build flags
    - KVM: s390: fix guest fprs memory leak
    - devm_memremap: Fix error value whe...