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List:       amarok-bugs-dist
Subject:    [amarok] [Bug 324197] New: Amarok UI freezes on startup or while playing when a USB drive containing
From:       Pierre Maraval <maraval_p () yahoo ! fr>
Date:       2013-08-29 0:36:10
Message-ID: bug-324197-71684 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=324197

            Bug ID: 324197
           Summary: Amarok UI freezes on startup or while playing when a
                    USB drive containing non-music files is mounted
    Classification: Unclassified
           Product: amarok
           Version: 2.8.0
          Platform: Kubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: Collections/USB mass storage and MSC
          Assignee: amarok-bugs-dist@kde.org
          Reporter: maraval_p@yahoo.fr
                CC: bart.cerneels@kde.org

Amarok UI freezes on startup or while playing when a NTFS USB drive containing
non-music files is mounted. 

The UI freezes and the playing stops a bit later. It freezes, sometimes for
several minutes. amarok and amarok collection scanner seem to be active in
"System activity".

The problem seems to be heavier since I enabled the Nepomuk collection, and the
indexing on the device. The device and its music collection are both very large
(2TB disk, 15GB collection). The problem became worse after the whole device
was (accidentally, it seems, maybe i'll file another bug if i can reproduce it)
set for automatic scanning.

The console output while frozen is a continuous flow of messages similar to
this one ( [text between brackets like this is a comment from me]    ):

FileTypeResolver: file /media/[path to my ntfs disk and some existing
directory] (mimetype application/x-shockwave-flash[or other non musical
content]) not recognized as Amarok-compatible 
void CollectionScanner::ScanningState::setLastFile(const QString&)
QSharedMemory is too small to hold the data. 
It is of size 1048576 bytes but we need more than 1674544 bytes. 

Unplugging or unmounting the device generally (but not always) makes amarok
return to normal faster.


Reproducible: Sometimes

Steps to Reproduce:
1.Start Amarok
2. Mount (large) USB HDD with non musical content
3. Try using amarok normally or enable the device for automatic use in the
mobile device collection configuration (Media Panel).

1 and 2 are can be interchanged.
Actual Results:  
Amarok freezes while the console output while frozen is a continuous flow of
messages similar to this one ( [text between brackets like this is a comment
from me]    ):

FileTypeResolver: file /media/[path to my ntfs disk and some existing
directory] (mimetype application/x-shockwave-flash[or other non musical
content]) not recognized as Amarok-compatible 
void CollectionScanner::ScanningState::setLastFile(const QString&)
QSharedMemory is too small to hold the data. 
It is of size 1048576 bytes but we need more than 1674544 bytes. 


Expected Results:  
The software should have continued working while scanning in the background.

Kubuntu 12.04 64bits, KDE 4.11, Amarok 2.8

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