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[Launchpad Bug Tracker <1737033@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 4.4.0-104.127

---------------
linux (4.4.0-104.127) xenial; urgency=low

  * linux: 4.4.0-104.127 -proposed tracker (LP: #1737511)

  * upgrading linux-image package to 4.4.0-103.126 breaks Ceph network file
    system connection (LP: #1737033)
    - Revert "libceph: MOSDOpReply v7 encoding"
    - Revert "libceph: advertise support for TUNABLES5"
    - Revert "crush: decode and initialize chooseleaf_stable"
    - Revert "crush: add chooseleaf_stable tunable"
    - Revert "crush: ensure take bucket value is valid"
    - Revert "crush: ensure bucket id is valid before indexing buckets array"

 -- Kleber Sacilotto de Souza <kleber.souza@xxxxxxxxxxxxx>  Mon, 11 Dec
2017 12:20:36 +0100

** Changed in: linux (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

** Changed in: linux (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1737033

Title:
  upgrading linux-image package to 4.4.0-103.126 breaks Ceph network
  file system connection

Status in ceph package in Ubuntu:
  Confirmed
Status in linux package in Ubuntu:
  Triaged
Status in ceph source package in Xenial:
  Confirmed
Status in linux source package in Xenial:
  Fix Released

Bug description:
  After clients have upgraded to 4.4.0-103.126 they can no longer
  connect to the Ceph network.

  Using the Grub menu to boot the previous kernel fixes the issue.

  The error in dmesg is:

  [   46.811897] FS-Cache: Loaded
  [   46.843670] Key type ceph registered
  [   46.844177] libceph: loaded (mon/osd proto 15/24)
  [   46.863107] FS-Cache: Netfs 'ceph' registered for caching
  [   46.863116] ceph: loaded (mds proto 32)
  [   46.884392] libceph: client3354099 fsid 2efbeab1-4903-4c4c-8365-6778afecbcbd
  [   46.886856] libceph: mon0 10.10.2.111:6789 session established
  [   46.897487] ceph: problem parsing mds trace -5
  [   46.897491] ceph: mds parse_reply err -5
  [   46.897492] ceph: mdsc_handle_reply got corrupt reply mds0(tid:1)

  All clients are running ceph client version:
  ii  ceph-fs-common                            10.2.9-0ubuntu0.16.04.1

  Server nodes are running 10.2.6 packages as supplied by Ceph.

  All 10.2.* versions are compatible. Using the previous kernel allows the connection to work.
  --- 
  ApportVersion: 2.20.1-0ubuntu2.14
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  lightdm    1310 F.... pulseaudio
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=9e3c38ba-10bd-4183-b073-68d9d9a30a9b
  IwConfig: Error: [Errno 2] No such file or directory
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 002: ID 80ee:0021 VirtualBox USB Tablet
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: innotek GmbH VirtualBox
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US
   SHELL=/bin/bash
  ProcFB: 0 vboxdrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-103-generic root=UUID=5a37e891-beb9-477f-b934-3c05651acf68 ro quiet splash
  ProcVersionSignature: Ubuntu 4.4.0-103.126-generic 4.4.98
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-103-generic N/A
   linux-backports-modules-4.4.0-103-generic  N/A
   linux-firmware                             1.157.14
  RfKill:
   
  Tags:  xenial xenial
  Uname: Linux 4.4.0-103-generic x86_64
  UnreportableReason: The report belongs to a package that is not installed.
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  _MarkForUpload: False
  dmi.bios.date: 12/01/2006
  dmi.bios.vendor: innotek GmbH
  dmi.bios.version: VirtualBox
  dmi.board.name: VirtualBox
  dmi.board.vendor: Oracle Corporation
  dmi.board.version: 1.2
  dmi.chassis.type: 1
  dmi.chassis.vendor: Oracle Corporation
  dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr:
  dmi.product.name: VirtualBox
  dmi.product.version: 1.2
  dmi.sys.vendor: innotek GmbH

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