[Digikam-devel] [Bug 301051] Digikam crashes when changing picture in image editor

[mikael.salson at gmail.com]

https://bugs.kde.org/show_bug.cgi?id=301051

--- Comment #4 from mikael.salson at gmail.com ---
Created attachment 71520
  --> https://bugs.kde.org/attachment.cgi?id=71520&action=edit
Valgrind output when Digikam crashes

Thanks a lot for your help… you're much quicker than kmail guys :)

I made further tests, which may be useless with Valgrind output. In a specific
album I need to first double click on a thumbnail to open a preview of a
portrait picture, then open the image editor on that picture, move forward and
Digikam crashes on the third portrait picture. 

I didn't succeed to reproduce the bug in other albums.

Also, Digikam doesn't crash if I don't first preview the picture. If I open the
image editor first, close it, preview the picture, and then re-open the image
editor, it won't crash.

Valgrind output is in attachment. I launched the command given in the URL
above. However, let me suggest to add file redirection to the command: when
Digikam crashes, valgrind complains about lots of memory blocks that have been
lost. There are so many lines that I lost the beginning of the output. So I had
to relaunch valgrind, with redirections this time.

The digikam.supp file I used was the latest from the git repository. The output
is compressed in attachment. Let me pinpoint the important part in the output.
When I click on a thumbnail to get a preview, valgrind detects an “Invalid read
of size 8” at 0x95DB52A. Opening the image editor does not produce any error.
It is only when I load the third portrait picture that I get a seemingly fatal
“Invalid read of size 4” at 0x7337108.

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