ignore loopback interface in udev rules

[stumyp]

I was investigating issue with 30 second delay during boot time and found that it happens in a networking service:

systemd-analyze  blame 
         30.188s networking.service

after some debugging I added one more exclusion for loopback interface and it takes 10 times less now:

 systemd-analyze  blame 
          3.078s networking.service

[andsens]

Wow. That is a considerable improvement.
@JamesBromberger can you sign off on this?

[stumyp]

There is another ~30 second timeout, but on kernel level:

[    1.684093] tsc: Refined TSC clocksource calibration: 2493.988 MHz
[    5.928127] xenbus_probe_frontend: Waiting for devices to initialise: 25s...20s...15s...10s...5s...0s...

[   30.929584] xenbus_probe_frontend: Timeout connecting to device: device/vfb/0 (local state 3, remote state 1)
[   30.933666] xenbus_probe_frontend: Device with no driver: device/vbd/51712
[   30.936418] xenbus_probe_frontend: Device with no driver: device/vif/0

[JamesBromberger]

That looks great for the loopback fix. The xen frotlntend issue is known and issue can be dound on the xen issue log.

I'm away on vac until 24th: will look to get changes merged and images out before new year.

-- 
Written on a phone; please excuse typos! Call +61 422 166 708 if the above is garbled beyond recognition or really really funny autocorrect!  :)

-------- Original message --------

From: Anders Ingemann notifications@github.com

Date:17/12/2015 15:47 (GMT+08:00)

To: andsens/bootstrap-vz bootstrap-vz@noreply.github.com

Cc: James Bromberger james@rcpt.to

Subject: Re: [bootstrap-vz] ignore loopback interface in udev rules (#263)

Wow. That is a considerable improvement.

@JamesBromberger can you sign off on this?

—
Reply to this email directly or view it on GitHub.

[andsens]

Alrighty then, merging! Thank you @stumyp
And thanks for the review @JamesBromberger