Version:           digikam-0.10.0-r1 (using KDE 4.3.3)
OS:                Linux
Installed from:    Gentoo Packages

A user was having problems (unrelated to digikam) with her KDE4.3.3 plasma workspace.  We had recently upgraded the systems from kde3.5.  I moved her .kde4 directory to a backup location and logged her in again.  This fixed the desktop problems we were having but of course all of her previous [application] settings had to be redone.

We started digikam and pointed it at her "Pictures" directory.  
The users "Pictures" folder had a link to a network drive with 19G of images in it: eg

./Pictures (digikam images folder)
    digikamdb.4 (200M+)
    SomeLocalFolders
    LinkToNetworkFolder (19G)


The digikam dialog said it was scanning images in the folders.  This went on for hours.  I noticed the digikam4.db file was reaching several hundred megabytes in size.  Eventually the information at the bootom of this message started coming out slowly.  I let it run for a while until I noticed the message sets repeating (after about 257 messages) at which point I killed the process.

As mentioned earlier the users "Pictures" folder had a link to a network drive with 19G of images in it: eg

./Pictures (digikam images folder)
    digikamdb.4 (200M+)
    SomeLocalFolders
    LinkToNetworkFolder (19G)

When I removed the link, the program was able to start correctly, and the digikamdb.4 file returned to a sane size (279k).

There are other users on the network with access to the same network folder in a setup similar to the structure listed above (and same KDE and digikam versions).  Their .db files are on the order of 5M or so.

This particular users digikam had been working fine previously.  I tried replacing her ./share/apps/digikam and ./share/config/digikamrc with files from her original .kde4 directory to see if it helped, but the same errors occurred.

Below is the repeating section of output created by digikam while "Scanning the folders".  I have removed some [200] of the repeating lines and added some comments inside brackets < like this >:

Note
------------------ output ------------------------
$digikam

<pause of several minutes while dialog indicates folders are being scanned >

Warning: Directory OlympusCs, entry 0x0101: Strip 0 is outside of the data area; ignored. 
Warning: No image data to encode Exif.OlympusCs.PreviewImageStart.  
Warning: Directory OlympusCs, entry 0x0101: Strip 0 is outside of the data area; ignored. 
Warning: No image data to encode Exif.OlympusCs.PreviewImageStart. 

< there is no OlympusCs directory in any of the images folders >
< this message repeats some 200 times >

Warning: Directory OlympusCs, entry 0x0101: Strip 0 is outside of the data area; ignored. 
Warning: No image data to encode Exif.OlympusCs.PreviewImageStart.  
Warning: Directory OlympusCs, entry 0x0101: Strip 0 is outside of the data area; ignored. 
Warning: No image data to encode Exif.OlympusCs.PreviewImageStart.  
libpng warning: zTXt: CRC error 
libpng warning: zTXt: CRC error 
libpng warning: zTXt: CRC error 
libpng warning: zTXt: CRC error 
Warning: XMP toolkit support not compiled in. 
Warning: Failed to decode XMP metadata. 
Warning: XMP toolkit support not compiled in. 
Warning: Failed to decode XMP metadata. 
Warning: XMP toolkit support not compiled in. 
Warning: Failed to decode XMP metadata. 
Warning: XMP toolkit support not compiled in. 
Warning: Failed to decode XMP metadata. 
Warning: XMP toolkit support not compiled in. 
Warning: Failed to decode XMP metadata. 
Warning: Directory NikonPreview, entry 0x0201: Data area exceeds data buffer, ignoring it.
Error: Directory NikonPreview with 2020 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory Sony with 1c00 entries considered invalid; not read. 
Error: Directory NikonPreview with 2020 entries considered invalid; not read. 
Warning: Directory NikonPreview, entry 0x0201: Data area exceeds data buffer, ignoring it.
Error: Directory NikonPreview with 2020 entries considered invalid; not read. 
Error: Directory NikonPreview with 2020 entries considered invalid; not read. 
Warning: Directory NikonPreview, entry 0x0201: Data area exceeds data buffer, ignoring it.
Warning: Directory NikonPreview, entry 0x0201: Data area exceeds data buffer, ignoring it.
Warning: XMP toolkit support not compiled in. 
Warning: Failed to decode XMP metadata. 
Warning: XMP toolkit support not compiled in. 
Warning: Failed to decode XMP metadata. 

< then the process starts over again >

Warning: Directory OlympusCs, entry 0x0101: Strip 0 is outside of the data area; ignored. 
Warning: No image data to encode Exif.OlympusCs.PreviewImageStart.  

< ... >


------------------end output ---------------------