[Digikam-devel] [Bug 280142] Crash when "unrating" pictures

Marcel Wiesweg marcel.wiesweg at gmx.de
Fri Oct 7 16:33:48 UTC 2011


https://bugs.kde.org/show_bug.cgi?id=280142





--- Comment #11 from Marcel Wiesweg <marcel wiesweg gmx de>  2011-10-07 16:33:47 ---
The trace confirms that the crash occurs in libtiff (this time, not a 16bit
image as above but an 8bit image, so the traces are slightly different).
Apparently, the metadata was written to the image, changing the timestamp and
causing a thumbnail recreation. All fine so far.

I assume loading these images normally (in preview or editor) is no problem, so
the situation of concurrent exiv2 write access and libtiff reading, or some
other involved memory corruption, is necessary to trigger the problem.

I would recommend to try with current git (or wait for 2.3) and, if still
reproducible, try to reproduce with digikam running under valgrind to rule out
memory corruption.

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