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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1398779

Title:
  radvd >= 2.0 blocks router update processing

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  In radvd 2.0+, daemonization code was rewritten, switching from
  libdaemon's daemon_fork() to Linux daemon() call.

  If no logging method (-m option) is passed to radvd, and the default
  logging method is used (which is L_STDERR_SYSLOG), then daemon() is
  called with (1, 1) arguments, meaning no chroot (fine) and not closing
  stderr (left there for logging) (not fine). So execute() call that
  spawns radvd and expects it to daemonize and return code never
  actually completes, blocked on stderr.

  The fix is to pass e.g. -m syslog to radvd to make it close stderr and
  return.

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