touch-packages team mailing list archive

[Ricardo Mendoza <1379840@xxxxxxxxxxxxxxxxxx>]

The issue at hand is a wrong assumption done by the cache loader that if
the changes to the source files are minimal, a single recompile of the
changed files is enough. This has proven to be not true, instead, a full
recompilation needs to happen as the QML meta tree might have changed in
ways that could cause weird application behaviour, or outright crashes.

The solution is:

1. Invalidate the full cache if any of the source files has been changed, and recompile in full.
2. If an application crashes during startup, wipe its cache to increase stability.

** Changed in: qtdeclarative-opensource-src (Ubuntu)
     Assignee: (unassigned) => Ricardo Mendoza (ricmm)

** Changed in: qtdeclarative-opensource-src (Ubuntu)
   Importance: Undecided => Critical

** Changed in: qtdeclarative-opensource-src (Ubuntu)
       Status: Confirmed => In Progress

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https://bugs.launchpad.net/bugs/1379840

Title:
  corrupted QML cache for messaging app makes it crash at startup

Status in “qtdeclarative-opensource-src” package in Ubuntu:
  In Progress

Bug description:
  This is on krillin image #95 from the 14.09-proposed channel.

  How I got there:

   - sent an MMS with a vodafone SIM card
   - switched off the phone, removed the SIM, inserted a movistar SIM in place, switched the phone back on
   - unlocked the SIM by entering pin, tapped on the messaging app icon

  At this point the messaging app failed to start, it crashed reliably
  at startup. Removing the QML cache under ~/.cache/QML/Apps/messaging-
  app/ solved the issue. I’m attaching an archive containing the
  corrupted cache.

  ProblemType: Bug
  DistroRelease: Ubuntu RTM 14.09
  Package: libqt5qml5 5.3.0-3ubuntu13~test1
  Uname: Linux 3.4.67 armv7l
  ApportVersion: 2.14.7-0ubuntu5
  Architecture: armhf
  Date: Fri Oct 10 17:45:59 2014
  InstallationDate: Installed on 2014-10-10 (0 days ago)
  InstallationMedia: Ubuntu Utopic Unicorn (development branch) - armhf (20141010-030205)
  SourcePackage: qtdeclarative-opensource-src
  UpgradeStatus: No upgrade log present (probably fresh install)

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