Race condition running PreciseHWETTestBonding integration test

[Diogo Matsubara]

As seen in https://server-team-jenkins.canonical.com/job/curtin-vmtest-venonat/110/console, PreciseHWETTestBonding failed while booting up the just installed VM due to a race condition.

The error presented in the boot-log[1] was: udevd[534]: error changing net interface name rename5 to eth0: File exists

[1] https://server-team-jenkins.canonical.com/job/curtin-vmtest-venonat/110/artifact/output/PreciseHWETTestBonding/logs/boot-serial.log/*view*/

[Ryan Harper (raharper)]

http://askubuntu.com/questions/382354/second-network-interface-fails-to-start-pre-start-killed-by-term

Looks like we get some fun races with ifupdown/ifenslave and nic renaming;

Not clear to me if part of the issue may be related to the "delay" involved with if-up.d/* scripts;
In some cases, I see module load errors when iscsi is restarted.

Temporarily, I'm going to see if I can fake out the open-iscsi restart by touching the initramfs file for open-iscsi that says we're root on iscsi which prevents the daemon from restarting.

[Ryan Harper (raharper)]

A quick test of removing /etc/network/if-{up,down}.d/open-iscsi symlinks
post-install resolves the race.
That does mean if we're *not* using iscsi-root but the package is installed
and we use bonding; the race exists for users.

On Mon, Mar 7, 2016 at 12:45 PM, Ryan Harper <email address hidden>
wrote:

> http://askubuntu.com/questions/382354/second-network-interface-fails-to-
> start-pre-start-killed-by-term
>
> Looks like we get some fun races with ifupdown/ifenslave and nic
> renaming;
>
> Not clear to me if part of the issue may be related to the "delay"
> involved with if-up.d/* scripts;
> In some cases, I see module load errors when iscsi is restarted.
>
> Temporarily, I'm going to see if I can fake out the open-iscsi restart
> by touching the initramfs file for open-iscsi that says we're root on
> iscsi which prevents the daemon from restarting.
>
> --
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> https://bugs.launchpad.net/bugs/1549904
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> Title:
> Race condition running PreciseHWETTestBonding integration test
>
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