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[Colin Watson <cjwatson@xxxxxxxxxxxxx>]

** Description changed:

  Binary package hint: cernlib
  
  update-inetd's Perl module will start, stop, or restart the installed
  inetd as appropriate, by calling "invoke-rc.d $service $action".
  However, if a postinst calling update-inetd is also using the debconf
  shell script module, it will have an open fd 3 which it uses to
  communicate with debconf.
  
  openbsd-inetd, at least, doesn't clean up file descriptors when it
  starts, meaning it keeps the fd 3 which was opened by the shell script,
  then passed to update-inetd, then passed to invoke-rc.d, then passed to
  inetd.
  
  The debconf frontend waits for that fd to close to indicate that the
  postinst is finished running. Since inetd has the fd open forever, that
  doesn't happen, and the postinst hangs.
  
  IMPACT: Installing a package that uses update-intd and debconf when
  inetd previously had no jobs configured will hang.
  
- DEVELOPMENT: This was fixed in update-inetd 4.38 by having update-
+ DEVELOPMENT: This was fixed in update-inetd 4.37 by having update-
  inetd's Perl module explicitly close fd 3 when it starts inetd.
  
  PATCH: Available in the associated branches (~broder/ubuntu/maverick
  /update-inetd/fix-601732 and ~broder/ubuntu/lucid/update-
  inetd/fix-601732). In both cases, the fix is a direct, unmodified
  backport of the patch from update-inetd 4.38. It applied to both without
  any fuzz.
  
  INSTRUCTIONS:
   1. Make sure that inetd is stopped, and has no services configured.
   2. Install pawserv or approx or any package that uses both inetd and debconf.
   3. Observe hang (or hopefully lack thereof)
  
  REGRESSION: Should be limited. The diff adds several lines of
  explanatory comments, but only changes one line of code in a pretty
  straightforward way.
  
  ========
  Old summary: package pawserv 2006.dfsg.2-14ubuntu2 failed to install/upgrade: postinst hang in /usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/info/pawserv.postinst configure
  
  Old description [changed by broder]:
  
  During postinst 'pawserv.postinst' become a zombie process - further
  installation/configuration of packages (using synaptic) has been
  possible by killing (15) 'frontend' process.
  
  ProblemType: Package
  DistroRelease: Ubuntu 10.04
  Package: pawserv 2006.dfsg.2-14ubuntu2
  ProcVersionSignature: Ubuntu 2.6.32-23.37-generic 2.6.32.15+drm33.5
  Uname: Linux 2.6.32-23-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Mon Jul  5 02:25:10 2010
  ErrorMessage: subprocess installed post-installation script killed by signal (Terminated)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  SourcePackage: cernlib
  Title: package pawserv 2006.dfsg.2-14ubuntu2 failed to install/upgrade: subprocess installed post-installation script killed by signal (Terminated)

-- 
postinst using both update-inetd and debconf hangs on first install
https://bugs.launchpad.net/bugs/601732
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