touch-packages team mailing list archive

[Martin Pitt <martin.pitt@xxxxxxxxxx>]

I talked to Michael Biebl, some notes:

 * I suppose due to keeping the root fs readonly the entire boot is a tad faster and thus exposes the race.
 * Due to that race it is recommended that physical interfaces use 'allow-hotplug', and virtual interfaces (bridges etc) use 'auto'.
 * debian-installer uses allow-hotplug for writing /etc/network/interfaces, to cope with slow detection on the kernel side

However, it also doesn't work with allow-hotplug, I'll investigate
further.

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https://bugs.launchpad.net/bugs/1374521

Title:
  networking.service races with kernel interface detection

Status in “systemd” package in Ubuntu:
  New

Bug description:
  /lib/systemd/system/ifup@.service specifies:

    ExecStart=/sbin/ifup --allow=hotplug %I

  This really needs to be:

    ExecStart=/sbin/ifup --allow=auto %I

  Since otherwise, for systems that don't use network-manager, the
  service will only bring up interfaces which have specified "allow-
  hotplug $if" in /etc/network/interfaces*.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: systemd 208-8ubuntu4
  ProcVersionSignature: Ubuntu 3.16.0-17.23-generic 3.16.3
  Uname: Linux 3.16.0-17-generic x86_64
  ApportVersion: 2.14.7-0ubuntu2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Sep 26 16:54:12 2014
  InstallationDate: Installed on 2014-04-11 (167 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140409)
  SourcePackage: systemd
  UpgradeStatus: Upgraded to utopic on 2014-05-08 (141 days ago)

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