[Bug 1156636] Re: When mount phase fails, pbuilder unmount directories of other chroots

[Mattia Rizzolo]

Thanks.

https://anonscm.debian.org/git/pbuilder/pbuilder.git/commit/?id=772dd1f9e3e13b6b640eb58c3c855a1ce867384f

** Changed in: pbuilder (Ubuntu)
       Status: New => Fix Committed

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https://bugs.launchpad.net/bugs/1156636

Title:
  When mount phase fails, pbuilder unmount directories of other chroots

Status in pbuilder package in Ubuntu:
  Fix Committed

Bug description:
  When the mount phase of pbuilder fails, pbuilder umounts directories
  that have already been successfully mounted (/usr/lib/pbuilder
  /pbuilder-modules lines 273 - 291) but it uses the device name (name
  of the directory being bind mounted) instead of the name of the mount
  point.

  If the directory is bind-mounted several times in others, unrelated,
  chroots it tries to unmount all of them.

  For example (full log attached) on the log below note that PIDs in
  cow.<PID> are different:

  I: umounting /var/lib/jenkins/cu2d
  umount: /var/cache/pbuilder/build/cow.15281/var/lib/jenkins/cu2d: device is busy.
          (In some cases useful info about processes that use
           the device is found by lsof(8) or fuser(1))
  umount: /var/cache/pbuilder/build/cow.1195/var/lib/jenkins/cu2d: device is busy.
          (In some cases useful info about processes that use
           the device is found by lsof(8) or fuser(1))
  umount: /var/cache/pbuilder/build/cow.1197/var/lib/jenkins/cu2d: device is busy.
          (In some cases useful info about processes that use
           the device is found by lsof(8) or fuser(1))
  umount: /var/cache/pbuilder/build/cow.1739/var/lib/jenkins/cu2d: device is busy.
          (In some cases useful info about processes that use
           the device is found by lsof(8) or fuser(1))
  umount: /var/cache/pbuilder/build/cow.59368/var/lib/jenkins/cu2d: not mounted
  umount: /var/cache/pbuilder/build/cow.53454/var/lib/jenkins/cu2d: device is busy.
          (In some cases useful info about processes that use
           the device is found by lsof(8) or fuser(1))
  umount: /var/cache/pbuilder/build/cow.36950/var/lib/jenkins/cu2d: device is busy.
          (In some cases useful info about processes that use
           the device is found by lsof(8) or fuser(1))
  umount: /var/cache/pbuilder/build/cow.19691/var/lib/jenkins/cu2d: device is busy.
          (In some cases useful info about processes that use
           the device is found by lsof(8) or fuser(1))

  line 278 of /usr/lib/pbuilder/pbuilder-modules could use the full path of the mount point:
  mounted[${#mounted[@]}]="$BUILDPLACE/$mnt"

  instead of $mnt only.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: pbuilder 0.213ubuntu1
  ProcVersionSignature: Ubuntu 3.8.0-12.21-generic 3.8.2
  Uname: Linux 3.8.0-12-generic x86_64
  ApportVersion: 2.9.1-0ubuntu1
  Architecture: amd64
  Date: Mon Mar 18 15:24:51 2013
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: pbuilder
  UpgradeStatus: Upgraded to raring on 2012-01-31 (411 days ago)

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