[Bug 838273] Re: Manual partionning: ubiquity crashed when I clicked on "change the partition"

[Stéphane Graber]

I reproduced it once and got the following stacktrace:
http://paste.ubuntu.com/679259

I fixed the crash handler part of it but the other crashes don't make much sense to me.
The TreeItem class always has a parentItem attribute as it's created by its constructor and as far as i can tell isn't being messed with by anything in the code.

I couldn't find another definition of Treeitem somewhere else which
could have overriden the one in PartitionModel.

Unfortunately I can't reproduce it reliably so I can't really debug it.
If someone can indeed reproduce it every time around, please write
complete step by step instructions so I can try to get the same here.

Attaching your /var/log/ubiquity/debug file may be helpful too once my
other fix is in (so the crash handler doesn't crash).

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https://bugs.launchpad.net/bugs/838273

Title:
  Manual partionning: ubiquity crashed when I clicked on "change the
  partition"

Status in “ubiquity” package in Ubuntu:
  Confirmed

Bug description:
  Hello,

  when I tested the Kubuntu Desktop image (amd64) with manual
  partionning, ubiquity crashed when I tried to change a partition :  I
  created two ext4 partitions (/ and /home) with a swap partition. I
  changed the first mount point to "/" and the second to "/home",
  ubiquity crashed when I tried to change the second one (when I clicked
  on "change").

  The test was done through VirtualBox

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: ubiquity 2.7.24
  ProcVersionSignature: Ubuntu 3.0.0-9.15-generic 3.0.3
  Uname: Linux 3.0.0-9-generic x86_64
  Architecture: amd64
  CasperVersion: 1.280
  Date: Wed Aug 31 17:39:48 2011
  LiveMediaBuild: Kubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110831)
  ProcEnviron:
   LANGUAGE=
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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