https://bugs.kde.org/show_bug.cgi?id=399925

[email protected] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[email protected]

--- Comment #7 from [email protected] ---
Disabling opencl and openmp (not sure why I said lapac, I meant openmp) didn't
help unfortunately.

> $ opencl_version -v --opencl
> 
> General configuration for OpenCV 3.4.5 =====================================
>   Version control:               unknown
> 
>   Extra modules:
>     Location (extra):            /build/opencv_contrib
>     Version control (extra):     unknown
> 
>   Platform:
>     Timestamp:                   1970-01-01T00:00:01Z
>     Host:                        Linux 4.14.104 x86_64
>     CMake:                       3.12.1
>     CMake generator:             Unix Makefiles
>     CMake build tool:            
> /nix/store/sf2wwp8m7vk61vk34rhn9pslgs0ci2v4-gnumake-4.2.1/bin/make
>     Configuration:               Release
> 
>   CPU/HW features:
>     Baseline:                    SSE SSE2 SSE3
>       requested:                 SSE3
>     Dispatched code generation:  SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
>       requested:                 SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
>       SSE4_1 (4 files):          + SSSE3 SSE4_1
>       SSE4_2 (1 files):          + SSSE3 SSE4_1 POPCNT SSE4_2
>       FP16 (0 files):            + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
>       AVX (5 files):             + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
>       AVX2 (10 files):           + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX 
> AVX2
>       AVX512_SKX (1 files):      + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX 
> AVX2 AVX_512F AVX512_SKX
> 
>   C/C++:
>     Built as dynamic libs?:      YES
>     C++11:                       YES
>     C++ Compiler:                
> /nix/store/klci955kxil7q32ggran6lnhpnkk8yjz-gcc-wrapper-7.3.0/bin/g++  (ver 
> 7.3.0)
>     C++ flags (Release):         -fsigned-char -W -Wall -Werror=return-type 
> -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat 
> -Werror=format-security -Wmissing-declarations -Wundef -Winit-self 
> -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self 
> -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment 
> -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option 
> -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections 
> -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden 
> -fvisibility-inlines-hidden -O3 -DNDEBUG  -DNDEBUG
>     C++ flags (Debug):           -fsigned-char -W -Wall -Werror=return-type 
> -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat 
> -Werror=format-security -Wmissing-declarations -Wundef -Winit-self 
> -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self 
> -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment 
> -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option 
> -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections 
> -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden 
> -fvisibility-inlines-hidden -g  -O0 -DDEBUG -D_DEBUG
>     C Compiler:                  
> /nix/store/klci955kxil7q32ggran6lnhpnkk8yjz-gcc-wrapper-7.3.0/bin/gcc
>     C flags (Release):           -fsigned-char -W -Wall -Werror=return-type 
> -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat 
> -Werror=format-security -Wmissing-declarations -Wmissing-prototypes 
> -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow 
> -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment 
> -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option 
> -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections 
> -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -O3 -DNDEBUG  
> -DNDEBUG
>     C flags (Debug):             -fsigned-char -W -Wall -Werror=return-type 
> -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat 
> -Werror=format-security -Wmissing-declarations -Wmissing-prototypes 
> -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow 
> -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment 
> -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option 
> -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections 
> -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -g  -O0 -DDEBUG 
> -D_DEBUG
>     Linker flags (Release):      
>     Linker flags (Debug):        
>     ccache:                      NO
>     Precompiled headers:         YES
>     Extra dependencies:          dl m pthread rt
>     3rdparty dependencies:
> 
>   OpenCV modules:
>     To be built:                 aruco bgsegm bioinspired calib3d ccalib core 
> datasets dnn dnn_objdetect dpm face features2d flann fuzzy hdf hfs highgui 
> img_hash imgcodecs imgproc java_bindings_generator line_descriptor ml 
> objdetect optflow phase_unwrapping photo plot python_bindings_generator reg 
> rgbd saliency sfm shape stereo stitching structured_light superres 
> surface_matching text tracking video videoio videostab xfeatures2d ximgproc 
> xobjdetect xphoto
>     Disabled:                    world
>     Disabled by dependency:      -
>     Unavailable:                 cnn_3dobj cudaarithm cudabgsegm cudacodec 
> cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow 
> cudastereo cudawarping cudev cvv freetype java js matlab ovis python2 python3 
> ts viz
>     Applications:                apps
>     Documentation:               NO
>     Non-free algorithms:         NO
> 
>   GUI: 
>     GTK+:                        NO
>     VTK support:                 NO
> 
>   Media I/O: 
>     ZLib:                        
> /nix/store/nsrwlly5ikwhppcslaazp547kh7q7j6s-zlib-1.2.11/lib/libz.so (ver 
> 1.2.11)
>     JPEG:                        
> /nix/store/yr8mbackq6bks0g3vhr7hkzh841r1sv2-libjpeg-turbo-2.0.1/lib/libjpeg.so
>  (ver 62)
>     WEBP:                        
> /nix/store/va9xi1k1w5bsd182k0lqmwki34m7skja-libwebp-1.0.1/lib/libwebp.so (ver 
> encoder: 0x020e)
>     PNG:                         
> /nix/store/px5w0kjsn31dcs1zscqss8zjxkb9j45m-libpng-apng-1.6.35/lib/libpng.so 
> (ver 1.6.35)
>     TIFF:                        
> /nix/store/plihhafcap43qq6qab4f8gzfcmfiy00b-libtiff-4.0.10/lib/libtiff.so 
> (ver 42 / 4.0.10)
>     JPEG 2000:                   
> /nix/store/3bpn824b669kh58ip7165ddmm8sqvjyn-jasper-2.0.14/lib/libjasper.so 
> (ver 2.0.14)
>     OpenEXR:                     
> /nix/store/l6z0wxmsb8psnzsj344ga0v06r685c0a-ilmbase-2.3.0/lib/libImath.so 
> /nix/store/a97cislj7mcj449m9lmmzi2pfki4gwbh-openexr-2.3.0/lib/libIlmImf.so 
> /nix/store/l6z0wxmsb8psnzsj344ga0v06r685c0a-ilmbase-2.3.0/lib/libIex.so 
> /nix/store/l6z0wxmsb8psnzsj344ga0v06r685c0a-ilmbase-2.3.0/lib/libHalf.so 
> /nix/store/l6z0wxmsb8psnzsj344ga0v06r685c0a-ilmbase-2.3.0/lib/libIlmThread.so 
> (ver Unknown)
>     HDR:                         YES
>     SUNRASTER:                   YES
>     PXM:                         YES
> 
>   Video I/O:
>     DC1394:                      NO
>     FFMPEG:                      NO
>       avcodec:                   NO
>       avformat:                  NO
>       avutil:                    NO
>       swscale:                   NO
>       avresample:                NO
>     GStreamer:                   NO
>     libv4l/libv4l2:              NO
>     v4l/v4l2:                    linux/videodev2.h
> 
>   Parallel framework:            pthreads
> 
>   Trace:                         YES (with Intel ITT)
> 
>   Other third-party libraries:
>     Lapack:                      YES 
> (/nix/store/m7qq6kqm1zwkjc3li2ar9iwmlr8cfdww-openblas-0.3.4/lib/libopenblas.so)
>     Eigen:                       YES (ver 3.3.5)
>     Custom HAL:                  NO
>     Protobuf:                    
> /nix/store/m5ssl9mglx7lycznxvik3n2kbrbwn159-protobuf-3.6.1/lib/libprotobuf.so 
> (3.6.1)
> 
>   Python (for build):            NO
> 
>   Java:                          
>     ant:                         NO
>     JNI:                         NO
>     Java wrappers:               NO
>     Java tests:                  NO
> 
>   Install to:                    
> /nix/store/mqcmqnkgi3yghlrarzadiw9sqhxpg3j3-opencv-3.4.5
> -----------------------------------------------------------------
> 
> 
> OpenCL is disabled


... and it segfaulted:


> digikam.facesengine: detectMultiScale gave ()
> digikam.general: Found 0 faces in "IMG-20140322-WA0003.jpg" QSize(640, 480) 
> QSize(640, 480)
> digikam.general: Removing old entries ()
> digikam.facesengine: detectMultiScale: image size ( 600 , 800 ) 
> searchIncrement 1.1 grouping 3 flags 1 min size ( 24 , 24 )
> digikam.general: Check for finish:  51 packages, 0 infos to filter, 
> hasFinished() false
> digikam.dimg: 
> "/home/timo/Pictures/pictures/Pictures/Android/Whatsapp/IMG-20140506-WA0001.jpg"
>   : JPEG file identified
> digikam.dimg: "/home/timo/Pictures/pictures/Pictures/[...]/IMG_7017.JPG"  : 
> JPEG file identified
> 
> Thread 37 "Thread (pooled)" received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0x7fff60ff9700 (LWP 4831)]
> QString::QString (other=..., this=0x7fff341b7f18) at 
> /nix/store/9ghnbhx3qwdawci3p24yc4axxblwjhbw-qtbase-5.12.0-dev/include/QtCore/qstring.h:958
> 958     { Q_ASSERT(&other != this); d->ref.ref(); }
> (gdb) 
> (gdb) 
> (gdb) bt
> #0  QString::QString (other=..., this=0x7fff341b7f18) at 
> /nix/store/9ghnbhx3qwdawci3p24yc4axxblwjhbw-qtbase-5.12.0-dev/include/QtCore/qstring.h:958
> #1  QMapData<QString, QVariant>::createNode (left=false, parent=0x0, v=..., 
> k=..., this=0x7fff341bfae0)
>     at 
> /nix/store/9ghnbhx3qwdawci3p24yc4axxblwjhbw-qtbase-5.12.0-dev/include/QtCore/qmap.h:228
> #2  QMapNode<QString, QVariant>::copy (this=0x1279540, 
> d=d@entry=0x7fff341bfae0) at 
> /nix/store/9ghnbhx3qwdawci3p24yc4axxblwjhbw-qtbase-5.12.0-dev/include/QtCore/qmap.h:258
> #3  0x00007ffff6830822 in QMap<QString, QVariant>::detach_helper 
> (this=0x33b8708) at 
> /nix/store/9ghnbhx3qwdawci3p24yc4axxblwjhbw-qtbase-5.12.0-dev/include/QtCore/qmap.h:1008
> #4  QMap<QString, QVariant>::detach (this=0x33b8708) at 
> /nix/store/9ghnbhx3qwdawci3p24yc4axxblwjhbw-qtbase-5.12.0-dev/include/QtCore/qmap.h:364
> #5  QMap<QString, QVariant>::insert (this=0x33b8708, akey=..., avalue=...) at 
> /nix/store/9ghnbhx3qwdawci3p24yc4axxblwjhbw-qtbase-5.12.0-dev/include/QtCore/qmap.h:706
> #6  0x00007ffff6a6a562 in Digikam::LoadSaveThread::exifRotate (image=..., 
> filePath=...) at 
> /home/timo/tmp/source/core/libs/threadimageio/fileio/loadsavethread.cpp:336
> #7  0x00007ffff6a52e4f in Digikam::PreviewLoadingTask::execute 
> (this=0x3ad8750) at 
> /home/timo/tmp/source/core/libs/threadimageio/preview/previewtask.cpp:302
> #8  0x00007ffff6a6a2ae in Digikam::LoadSaveThread::run (this=0x3fc53e0) at 
> /home/timo/tmp/source/core/libs/threadimageio/fileio/loadsavethread.cpp:133
> #9  0x00007ffff6a8bdae in Digikam::DynamicThread::Private::run 
> (this=0x411a940) at 
> /home/timo/tmp/source/core/libs/threads/dynamicthread.cpp:183
> #10 0x00007ffff0027022 in ?? () from 
> /nix/store/9mdqkdb7iwdw4ripbqdpazbqnx7wc2qy-qtbase-5.12.0/lib/libQt5Core.so.5
> #11 0x00007ffff00228c2 in ?? () from 
> /nix/store/9mdqkdb7iwdw4ripbqdpazbqnx7wc2qy-qtbase-5.12.0/lib/libQt5Core.so.5
> #12 0x00007ffff5fd4ef7 in start_thread () from 
> /nix/store/681354n3k44r8z90m35hm8945vsp95h1-glibc-2.27/lib/libpthread.so.0
> #13 0x00007fffeeb3822f in clone () from 
> /nix/store/681354n3k44r8z90m35hm8945vsp95h1-glibc-2.27/lib/libc.so.6

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