[Digikam-devel] [digikam] [Bug 349601] digikam compile fine with OpenCV 2.X but not with 3.x

[Adam Stylinski]

https://bugs.kde.org/show_bug.cgi?id=349601

--- Comment #15 from Adam Stylinski <kungfujesus06 at gmail.com> ---
Hmm that error could have been innocuous (based on some searches with Google -
some more training data may have been needed to be supplied), but I get a very
real hard crash if I let it run long enough, with a double free:

*** Error in `digikam': free(): invalid next size (normal): 0x00007fe0b84a6bf0
***
======= Backtrace: =========
/lib64/libc.so.6(+0x7237c)[0x7fe0fb95337c]
/lib64/libc.so.6(+0x779ae)[0x7fe0fb9589ae]
/lib64/libc.so.6(+0x7818b)[0x7fe0fb95918b]
/usr/lib64/libopencv_imgproc.so.3.0(_ZN2cv5CannyERKNS_11_InputArrayERKNS_12_OutputArrayEddib+0x5ca)[0x7fe0ffab408a]
/usr/lib64/libopencv_imgproc.so.3.0(cvCanny+0x19b)[0x7fe0ffab5ecb]
/usr/lib64/libopencv_objdetect.so.3.0(_Z25cvHaarDetectObjectsForROCPKvP23CvHaarClassifierCascadeP12CvMemStorageRSt6vectorIiSaIiEERS5_IdSaIdEEdii6CvSizeSC_b+0x215f)[0x7fe0f7e1a29f]
/usr/lib64/libopencv_objdetect.so.3.0(+0x40b90)[0x7fe0f7e33b90]
/usr/lib64/libopencv_objdetect.so.3.0(+0x41082)[0x7fe0f7e34082]
/usr/lib64/libopencv_objdetect.so.3.0(+0x2cf3b)[0x7fe0f7e1ff3b]
/usr/lib64/libopencv_objdetect.so.3.0(_ZN2cv17CascadeClassifier16detectMultiScaleERKNS_11_InputArrayERSt6vectorINS_5Rect_IiEESaIS6_EEdiiNS_5Size_IiEESB_+0xc6)[0x7fe0f7e32fb6]
/usr/lib64/libkface.so.3(+0x1b742)[0x7fe0ffe96742]
/usr/lib64/libkface.so.3(+0x1e029)[0x7fe0ffe99029]
/usr/lib64/libkface.so.3(_ZN10KFaceIface12FaceDetector11detectFacesERK6QImageRK5QSize+0x9c)[0x7fe0ffe89d0c]
digikam[0x7a8a60]
digikam[0x7a8e12]
/usr/lib64/qt4/libQtCore.so.4(_ZN7QObject5eventEP6QEvent+0x25e)[0x7fe0fc3e632e]
/usr/lib64/qt4/libQtGui.so.4(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0x8c)[0x7fe0fcb4effc]
/usr/lib64/qt4/libQtGui.so.4(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x1c1)[0x7fe0fcb57d21]
/usr/lib64/libkdeui.so.5(_ZN12KApplication6notifyEP7QObjectP6QEvent+0x33)[0x7fe0fe173b43]
/usr/lib64/qt4/libQtCore.so.4(_ZN16QCoreApplication14notifyInternalEP7QObjectP6QEvent+0x75)[0x7fe0fc3c70d5]
/usr/lib64/qt4/libQtCore.so.4(_ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData+0x1ea)[0x7fe0fc3cbd2a]
/usr/lib64/qt4/libQtCore.so.4(+0x1ea0ae)[0x7fe0fc3ff0ae]
/usr/lib64/libglib-2.0.so.0(g_main_context_dispatch+0x27c)[0x7fe0f4c2610c]
/usr/lib64/libglib-2.0.so.0(+0x54398)[0x7fe0f4c26398]
/usr/lib64/libglib-2.0.so.0(g_main_context_iteration+0x2c)[0x7fe0f4c2643c]
/usr/lib64/qt4/libQtCore.so.4(_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE+0x7e)[0x7fe0fc3fe01e]
/usr/lib64/qt4/libQtCore.so.4(_ZN10QEventLoop13processEventsE6QFlagsINS_17ProcessEventsFlagEE+0x38)[0x7fe0fc3c50b8]
/usr/lib64/qt4/libQtCore.so.4(_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE+0x185)[0x7fe0fc3c53d5]
/usr/lib64/libdigikamcore.so.4.12.0(+0x3a0a58)[0x7fe101569a58]
/usr/lib64/qt4/libQtCore.so.4(+0x7389b)[0x7fe0fc28889b]
/usr/lib64/qt4/libQtCore.so.4(+0x83327)[0x7fe0fc298327]
/lib64/libpthread.so.0(+0x7304)[0x7fe0fa7a4304]
/lib64/libc.so.6(clone+0x6d)[0x7fe0fb9c8c1d]

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