Apps Lens doesn't handle Software Center Index Corruption

[[e-mail]]

Binary package hint: unity-place-applications

the bug occurs when I try to click applications before files and folders, in this case application will freeze but if I click Files and folders during this time then go back and click applications it will open

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: unity-place-applications 0.2.46-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
CrashCounter: 1
Date: Sat Apr 16 08:00:52 2011
ExecutablePath: /usr/lib/unity-place-applications/unity-applications-daemon
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110330)
ProcCmdline: /usr/lib/unity-place-applications/unity-applications-daemon
ProcEnviron:
 SHELL=/bin/bash
 LANGUAGE=en_CA:en
 LANG=en_CA.UTF-8
Signal: 6
SourcePackage: unity-place-applications
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/i386-linux-gnu/libc.so.6
 abort () from /lib/i386-linux-gnu/libc.so.6
 __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/i386-linux-gnu/libstdc++.so.6
 ?? () from /usr/lib/i386-linux-gnu/libstdc++.so.6
Title: unity-applications-daemon crashed with SIGABRT in __kernel_vsyscall()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 __kernel_vsyscall ()
 raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
 abort () at abort.c:92
 __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/i386-linux-gnu/libstdc++.so.6
 ?? () from /usr/lib/i386-linux-gnu/libstdc++.so.6

[Mikkel Kamstrup Erlandsen (kamstrup)]

This particular crash seems to have happened while retrieving the PKGNAME value from Software Center's Xapian index. Xapian raises a DatabaseError, probably because the index is corrupted.

The solution for the apps lens is to somehow gracefully handle the case where the S-C index is corrupted. There are a few options; none very compelling though, so I will need a think about this. Problem is we can't regenerate the index our selves and we can't easily know when it has been fixed again...

[Launchpad Janitor (janitor)]

This bug was fixed in the package unity-lens-applications - 0.4.8-0ubuntu1

---------------
unity-lens-applications (0.4.8-0ubuntu1) oneiric; urgency=low

  * New upstream release.
    - unity-applications-daemon crash in
      dee_shared_model_flush_revision_queue() (LP: #740561)
    - Apps Lens doesn't handle Software Center Index Corruption (LP: #762821)
    - Star rating filter in apps lens not respected (LP: #855324)
    - configure needs to test for xapian.h (LP: #736051)
    - Random available apps does not belong to selected category (LP: #857409)
  * debian/control:
    - add libdb4.8-dev build-dep
 -- Didier Roche <email address hidden> Fri, 23 Sep 2011 16:23:48 +0200