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[Michi Henning <michi.henning@xxxxxxxxxxxxx>]

I've managed to start the music app without a crash. But it takes well
over 60 seconds (!) before the spinner goes away and the song list
appears.

Following the application log, it looks like qmlscene is being asked to
deal with the entire collection of 7000 songs up front. This is totally
non-scalable.

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https://bugs.launchpad.net/bugs/1529991

Title:
  qmlscene crashes if music app is started while mediascanner is
  extracting

Status in mediascanner2 package in Ubuntu:
  New
Status in music-app package in Ubuntu:
  New
Status in qtdeclarative-opensource-src package in Ubuntu:
  New

Bug description:
  I'm attaching an archive with about 7000 "songs" (each of which is a
  second of silence).

  To reproduce the problem, make sure that the music app isn't running
  and unpack the archive somewhere under the Music directory. This
  causes mediascanner to start indexing the files. (It'll take about 10
  minutes on Mako.)

  While mediascanner is still indexing, start the music app. A few
  seconds later, qmlscene crashes. (I'm seeing this with image 326 from
  rc-proposed.)

  I'm also attaching the crash file.

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