[Bug 1083130] [NEW] mounted-tmp fails to cleanup directories when /tmp contains undeletable files

[Andrea Corbellini]

Public bug reported:

Assumption:
/tmp is an ext* filesystem.

Steps to reproduce:
1. mkdir /tmp/test
2. touch /tmp/test/case
3. chattr +a /tmp/test
4. shutdown -r now

What happens:
On start all files but /tmp/test/case are removed. No directories are removed.

What should happend:
Every file and directory in /tmp should be removed, except /tmp/test and its content.

Why it happens:
/etc/init/mounted-tmp.conf contains these two lines:

    find . -depth -xdev $TEXPR $EXCEPT ! -type d -delete
    find . -depth -xdev $DEXPR $EXCEPT -type d -empty -delete

The first line fails with a non-zero status because
unlink("/tmp/test/case") triggers EPERM. AFAIK, all upstart scripts
implicitly use "set +e", so the second line will never be executed (and
no directories will be removed).

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: mountall 2.42ubuntu0.1
ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
Uname: Linux 3.5.0-19-generic x86_64
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
CheckboxSubmission: 23d4ad9b5457fd302024f47052e863ca
CheckboxSystem: d00f84de8a555815fa1c4660280da308
Date: Mon Nov 26 12:10:04 2012
InstallationDate: Installed on 2011-10-17 (405 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MarkForUpload: True
SourcePackage: mountall
UpgradeStatus: Upgraded to quantal on 2012-08-25 (92 days ago)

** Affects: mountall (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug package-from-proposed quantal running-unity

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https://bugs.launchpad.net/bugs/1083130

Title:
  mounted-tmp fails to cleanup directories when /tmp contains
  undeletable files

Status in “mountall” package in Ubuntu:
  New

Bug description:
  Assumption:
  /tmp is an ext* filesystem.

  Steps to reproduce:
  1. mkdir /tmp/test
  2. touch /tmp/test/case
  3. chattr +a /tmp/test
  4. shutdown -r now

  What happens:
  On start all files but /tmp/test/case are removed. No directories are removed.

  What should happend:
  Every file and directory in /tmp should be removed, except /tmp/test and its content.

  Why it happens:
  /etc/init/mounted-tmp.conf contains these two lines:

      find . -depth -xdev $TEXPR $EXCEPT ! -type d -delete
      find . -depth -xdev $DEXPR $EXCEPT -type d -empty -delete

  The first line fails with a non-zero status because
  unlink("/tmp/test/case") triggers EPERM. AFAIK, all upstart scripts
  implicitly use "set +e", so the second line will never be executed
  (and no directories will be removed).

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: mountall 2.42ubuntu0.1
  ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
  Uname: Linux 3.5.0-19-generic x86_64
  ApportVersion: 2.6.1-0ubuntu6
  Architecture: amd64
  CheckboxSubmission: 23d4ad9b5457fd302024f47052e863ca
  CheckboxSystem: d00f84de8a555815fa1c4660280da308
  Date: Mon Nov 26 12:10:04 2012
  InstallationDate: Installed on 2011-10-17 (405 days ago)
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MarkForUpload: True
  SourcePackage: mountall
  UpgradeStatus: Upgraded to quantal on 2012-08-25 (92 days ago)

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