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[Launchpad Bug Tracker <1739033@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package corosync - 2.3.5-3ubuntu2

---------------
corosync (2.3.5-3ubuntu2) xenial; urgency=medium

  * d/p/Parser-Make-config-file-parser-more-hierarchy.patch: Fixes how
    corosync parses a config file with malformed entries (LP: #1739033).

 -- Victor Tapia <victor.tapia@xxxxxxxxxxxxx>  Wed, 20 Dec 2017 12:37:52
+0100

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

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https://bugs.launchpad.net/bugs/1739033

Title:
  Corosync: Assertion 'sender_node != NULL' failed when bind iface is
  ready after corosync boots

Status in corosync package in Ubuntu:
  Fix Released
Status in corosync source package in Trusty:
  Fix Committed
Status in corosync source package in Xenial:
  Fix Released
Status in corosync source package in Zesty:
  Fix Released
Status in corosync source package in Artful:
  Fix Released

Bug description:
  [Impact]

  Corosync sigaborts if it starts before the interface it has to bind to
  is ready.

  On boot, if no interface in the bindnetaddr range is up/configured,
  corosync binds to lo (127.0.0.1). Once an applicable interface is up,
  corosync crashes with the following error message:

  corosync: votequorum.c:2019: message_handler_req_exec_votequorum_nodeinfo: Assertion `sender_node != NULL' failed.
  Aborted (core dumped)

  The last log entries show that the interface is trying to join the
  cluster:

  Dec 19 11:36:05 [22167] xenial-pacemaker corosync debug   [TOTEM ] totemsrp.c:2089 entering OPERATIONAL state.
  Dec 19 11:36:05 [22167] xenial-pacemaker corosync notice  [TOTEM ] totemsrp.c:2095 A new membership (169.254.241.10:444) was formed. Members joined: 704573706

  During the quorum calculation, the generated nodeid (704573706) for
  the node is being used instead of the nodeid specified in the
  configuration file (1), and the assert fails because the nodeid is not
  present in the member list. Corosync should use the correct nodeid and
  continue running after the interface is up, as shown in a fixed
  corosync boot:

  Dec 19 11:50:56 [4824] xenial-corosync corosync notice  [TOTEM ]
  totemsrp.c:2095 A new membership (169.254.241.10:80) was formed.
  Members joined: 1

  [Environment]

  Xenial 16.04.3

  Packages:

  ii  corosync                     2.3.5-3ubuntu1    amd64    cluster engine daemon and utilities
  ii  libcorosync-common4:amd64    2.3.5-3ubuntu1    amd64    cluster engine common library

  [Test Case]

  Config:

  totem {
          version: 2
          member {
                  memberaddr: 169.254.241.10
          }
          member {
                  memberaddr: 169.254.241.20
          }
          transport: udpu

          crypto_cipher: none
          crypto_hash: none
          nodeid: 1
          interface {
                  ringnumber: 0
                  bindnetaddr: 169.254.241.0
                  mcastport: 5405
                  ttl: 1
          }
  }

  quorum {
          provider: corosync_votequorum
          expected_votes: 2
  }

  nodelist {
          node {
                  ring0_addr: 169.254.241.10
                  nodeid: 1
          }
          node {
                  ring0_addr: 169.254.241.20
                  nodeid: 2
          }
  }

  1. ifdown interface (169.254.241.10)
  2. start corosync (/usr/sbin/corosync -f)
  3. ifup interface

  [Regression Potential]

  This patch affects corosync boot; the regression potential is for
  other problems during corosync startup and/or configuration parsing.

  [Other info]

  # Upstream corosync commit :
  https://github.com/corosync/corosync/commit/aab55a004bb12ebe78db341dc56759dfe710c1b2

  # git describe aab55a004bb12ebe78db341dc56759dfe710c1b2
  v2.3.5-45-gaab55a0

  # rmadison corosync
  corosync | 2.3.3-1ubuntu1   | trusty          | source, amd64, arm64, armhf, i386, powerpc, ppc64el
  corosync | 2.3.3-1ubuntu3   | trusty-updates  | source, amd64, arm64, armhf, i386, powerpc, ppc64el
  corosync | 2.3.5-3ubuntu1   | xenial          | source, amd64, arm64, armhf, i386, powerpc, ppc64el, s390x
  corosync | 2.4.2-3build1    | zesty           | source, amd64, arm64, armhf, i386, ppc64el, s390x
  corosync | 2.4.2-3build1    | artful          | source, amd64, arm64, armhf, i386, ppc64el, s390x
  corosync | 2.4.2-3build1    | bionic          | source, amd64, arm64, armhf, i386, ppc64el, s390x

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