SUMMARY STEPS TO REPRODUCE 1. Attempt to use Tools > Maintenance > Rebuild Thumbnails or Fingerprints, database type (sqlite or mysql(internal) does not matter; uncheck box to allow full scann 2. 3. OBSERVED RESULT Application window crashes anywhere from a few seconds to few minutes after initiating scan. Attempts to click elements to determine status of scan results in crash. EXPECTED RESULT Complete rebuild of thumbnails and fingerprints. SOFTWARE/OS VERSIONS Windows: 10.0.19041 (2004) macOS: N/A Linux/KDE Plasma: N/A (available in About System) KDE Plasma Version: N/A KDE Frameworks Version: N/A Qt Version: N/A ADDITIONAL INFORMATION Downgrade to digiKam 7.0 allowed rebuild of thumbnails and fingerprints to proceed.
Please try digiKam-7.2.0-beta1 from here: https://files.kde.org/digikam/ Maik
*** Bug 428964 has been marked as a duplicate of this bug. ***
Maik, I think it's the same here that the famous crash about threadimageio and thumbnails. It's due to copyable polymorphic class proble not resolved in HarrIface. Look this Clazy warning: /home/gilles/Devel/7.x/core/libs/database/haar/haariface.h:50:1: warning: Polymorphic class Digikam::HaarProgressObserver is copyable. Potential slicing. [-Wclazy-copyable-polymorphic] class HaarProgressObserver There are also plenty of similar issues about DMetadata, MetaEngine, DRawDecodingSettings, DRawDecoding, etc. We need to fix these problems first, else we will seen again strange crashes for a long time. Gilles
Git commit 8a2eba8bdfd2cdb8972ecee31bfaa1122e5b65f6 by Gilles Caulier. Committed on 12/11/2020 at 13:37. Pushed by cgilles into branch 'master'. Clazy++ : fix copy constructor warning with internal polymorphic class used in HarrIface Related: bug 428964 M +2 -1 core/libs/database/dbjobs/duplicatesprogressobserver.cpp M +8 -2 core/libs/database/haar/haariface.h M +6 -6 core/libs/database/haar/haariface_p.cpp https://invent.kde.org/graphics/digikam/commit/8a2eba8bdfd2cdb8972ecee31bfaa1122e5b65f6
digiKam 7.2.0 official release is published with more than 360 files closed from bugzilla: https://www.digikam.org/news/2021-03-22-7.2.0_release_announcement/ Can you reproduce the dysfunction with this version ? Thanks in advance for your feedback Gilles Caulier
Downloaded 7.2.0, reproduced steps, no crash occurred. Thank you :-)