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[Launchpad Bug Tracker <1739033@xxxxxxxxxxxxxxxxxx>]

You have been subscribed to a public bug by Eric Desrochers (slashd):

[Description]

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

[Reproducer]

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

** Affects: corosync (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: corosync (Ubuntu Trusty)
     Importance: Undecided
         Status: New

** Affects: corosync (Ubuntu Xenial)
     Importance: Undecided
         Status: New

-- 
Corosync: Assertion 'sender_node != NULL' failed when bind iface is ready after corosync boots
https://bugs.launchpad.net/bugs/1739033
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