[Bug 1441240] Re: vim locks up when freeing lots of objects

[Paul White]

>From Ubuntu changelog showing bug fixed:

vim (2:7.4.712-1) unstable; urgency=medium

  * Merge upstream tag v7-4-712
    + 7.4.586: Remove a cyclic dependency when generating documentation, which
      results in unreproducible builds.  (Closes: #775562)
    + 7.4.609: Use a stack of dicts and lists to be marked for garbage
      collection, thus making it iterative instead of recursive.  Fixes crash
      with some plugins written in other languages (e.g., lua).  (Closes:
      #778821)
    + runtime/syntax/registry.vim: Correct highlighting of comments.  (Closes:
      #687199)
    + runtime/syntax/strace.vim: Highlight 2-digit escape sequences the same
      as 1 or 3-digit escape sequences.  (Closes: #775113)
  * Remove backported patches upstream/v7-4-576.patch and
    upstream/netrwSavePosn.patch.
  * Add a Build-Conflict for autoconf2.13 to avoid a FTBFS if it's installed.
    (Closes: #781031)

 -- James McCoy <jamessan at debian.org>  Sat, 25 Apr 2015 09:00:09 -0400


** Changed in: vim (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1441240

Title:
  vim locks up when freeing lots of objects

Status in vim package in Ubuntu:
  Fix Released
Status in vim package in Debian:
  Fix Released

Bug description:
  When using a heavy plugin (e.g. unite, ctrlP, many others), vim's GC
  is stressed. vim's GC has a performance bug which causes it to be
  O(n^2), which results in vim freezing up when it runs. This is fixed
  in a newer version of vim. This patch should be considered for
  backporting.

  The patch is here:
  https://groups.google.com/forum/#!topic/vim_dev/pXjj7rww5RY

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: vim-gtk 2:7.4.273-2ubuntu4
  ProcVersionSignature: Ubuntu 3.16.0-29.39-generic 3.16.7-ckt2
  Uname: Linux 3.16.0-29-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.7-0ubuntu8.2
  Architecture: amd64
  Date: Tue Apr  7 12:00:38 2015
  InstallationDate: Installed on 2014-03-12 (390 days ago)
  InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release amd64 (20140204)
  SourcePackage: vim
  UpgradeStatus: Upgraded to utopic on 2015-01-09 (87 days ago)

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