[Bug 1828151] [NEW] advzip dies due to OOM killer

[Chai T. Rex]

Public bug reported:

 System information
====================

        $ lsb_release -rd
        Description:	Ubuntu 18.04.2 LTS
        Release:	18.04
        
        $ apt-cache policy advancecomp
        advancecomp:
          Installed: 2.1-1ubuntu0.18.04.1
          Candidate: 2.1-1ubuntu0.18.04.1
          Version table:
         *** 2.1-1ubuntu0.18.04.1 500
                500 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
                500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
                100 /var/lib/dpkg/status
             2.1-1 500
                500 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

 Problem
=========

When creating a ZIP file with a bunch of files, it seems that
intermediate results are never written to disk until the compression is
complete. Since all intermediate results are retained in RAM, the OOM
killer can strike when the files to be compressed are too large to fit
in memory all at the same time.

 Example
=========

        $ free -mh
                      total        used        free      shared  buff/cache   available
        Mem:            15G        4.6G        7.4G        1.3G        3.4G        9.2G
        Swap:          979M          0B        979M
        
        $ du -hs
        56G	.
        
        $ advzip -ap4 ../recovered.zip *
        LostFiles/Dir_3928/Application Data/Avira/AntiVir Desktop/UPDATE_000/VALIDATION/xbv00016.vdf
        LostFiles/Dir_3928/Application Data/Avira/AntiVir Desktop/UPDATE_000/VALIDATION/xbv00134.vdf
        LostFiles/Dir_3928/Application Data/Avira/AntiVir Desktop/UPDATE_000/VALIDATION/xbv00169.vdf
        ⋮   ⋮   ⋮   ⋮
        Killed

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: advancecomp 2.1-1ubuntu0.18.04.1
ProcVersionSignature: Ubuntu 4.15.0-48.51-generic 4.15.18
Uname: Linux 4.15.0-48-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
CurrentDesktop: XFCE
Date: Tue May  7 22:55:26 2019
Dependencies:
 gcc-8-base 8.2.0-1ubuntu2~18.04
 libc6 2.27-3ubuntu1
 libgcc1 1:8.2.0-1ubuntu2~18.04
 libstdc++6 8.2.0-1ubuntu2~18.04
 zlib1g 1:1.2.11.dfsg-0ubuntu2
InstallationDate: Installed on 2018-12-27 (131 days ago)
InstallationMedia: Xubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: advancecomp
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: amd64 apport-bug bionic

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https://bugs.launchpad.net/bugs/1828151

Title:
  advzip dies due to OOM killer

Status in advancecomp package in Ubuntu:
  New

Bug description:
   System information
  ====================

          $ lsb_release -rd
          Description:	Ubuntu 18.04.2 LTS
          Release:	18.04
          
          $ apt-cache policy advancecomp
          advancecomp:
            Installed: 2.1-1ubuntu0.18.04.1
            Candidate: 2.1-1ubuntu0.18.04.1
            Version table:
           *** 2.1-1ubuntu0.18.04.1 500
                  500 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
                  500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
                  100 /var/lib/dpkg/status
               2.1-1 500
                  500 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

   Problem
  =========

  When creating a ZIP file with a bunch of files, it seems that
  intermediate results are never written to disk until the compression
  is complete. Since all intermediate results are retained in RAM, the
  OOM killer can strike when the files to be compressed are too large to
  fit in memory all at the same time.

   Example
  =========

          $ free -mh
                        total        used        free      shared  buff/cache   available
          Mem:            15G        4.6G        7.4G        1.3G        3.4G        9.2G
          Swap:          979M          0B        979M
          
          $ du -hs
          56G	.
          
          $ advzip -ap4 ../recovered.zip *
          LostFiles/Dir_3928/Application Data/Avira/AntiVir Desktop/UPDATE_000/VALIDATION/xbv00016.vdf
          LostFiles/Dir_3928/Application Data/Avira/AntiVir Desktop/UPDATE_000/VALIDATION/xbv00134.vdf
          LostFiles/Dir_3928/Application Data/Avira/AntiVir Desktop/UPDATE_000/VALIDATION/xbv00169.vdf
          ⋮   ⋮   ⋮   ⋮
          Killed

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: advancecomp 2.1-1ubuntu0.18.04.1
  ProcVersionSignature: Ubuntu 4.15.0-48.51-generic 4.15.18
  Uname: Linux 4.15.0-48-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.6
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Tue May  7 22:55:26 2019
  Dependencies:
   gcc-8-base 8.2.0-1ubuntu2~18.04
   libc6 2.27-3ubuntu1
   libgcc1 1:8.2.0-1ubuntu2~18.04
   libstdc++6 8.2.0-1ubuntu2~18.04
   zlib1g 1:1.2.11.dfsg-0ubuntu2
  InstallationDate: Installed on 2018-12-27 (131 days ago)
  InstallationMedia: Xubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  SourcePackage: advancecomp
  UpgradeStatus: No upgrade log present (probably fresh install)

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