https://bugs.kde.org/show_bug.cgi?id=399923

--- Comment #114 from timo...@zoho.com ---
No luck.


With OpenCL disabled:

> digikam.facesengine: Verifying face QRect(308,190 47x47) using cascade 7
> digikam.facesengine: feature QRectF(0.2,0.25 0.6x0.6) QRect(308,190 47x47) 
> QRect(317,202 28x28)
> digikam.facesengine: detectMultiScale: image size ( 28 , 28 ) searchIncrement 
> 1.1 grouping 2 flags 0 min size ( 5 , 5 )
> digikam.facesengine: detectMultiScale gave ()
> digikam.facesengine: Verifying face QRect(308,190 47x47) using cascade 8
> digikam.facesengine: feature QRectF(0.1,0.4 0.8x0.6) QRect(308,190 47x47) 
> QRect(313,209 38x28)
> digikam.facesengine: detectMultiScale: image size ( 38 , 28 ) searchIncrement 
> 1.1 grouping 2 flags 0 min size ( 5 , 5 )
> digikam.facesengine: detectMultiScale gave ()
> digikam.general: Found 0 faces in "2014-02-25 19.05.25.jpg" QSize(3264, 2448) 
> QSize(3264, 2448)
> digikam.general: Removing old entries ()
> [Thread 0x7ffef8ff9700 (LWP 12284) exited]
> 
> Thread 56 "Thread (pooled)" received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0x7fff34bdd700 (LWP 5075)]
> 0x00007ffff6487767 in Digikam::LoadingTask::progressInfo (this=0x3d488a0, 
> img=0x3d48a98, progress=0.649999976)
>     at 
> /home/timo/tmp/source/core/libs/threadimageio/fileio/loadsavetask.cpp:65
> 65              if (m_thread && m_thread->querySendNotifyEvent())
> (gdb) 
> (gdb) bt
> #0  0x00007ffff6487767 in Digikam::LoadingTask::progressInfo (this=0x3d488a0, 
> img=0x3d48a98, progress=0.649999976)
>     at 
> /home/timo/tmp/source/core/libs/threadimageio/fileio/loadsavetask.cpp:65
> #1  0x00007ffff6259ca0 in Digikam::JPEGLoader::load 
> (this=this@entry=0x7fff34bcd7d0, filePath=..., 
> observer=observer@entry=0x3d488b0)
>     at /home/timo/tmp/source/core/libs/dimg/loaders/jpegloader.cpp:470
> #2  0x00007ffff63ae920 in Digikam::DImg::load (this=this@entry=0x3d48a98, 
> filePath=..., loadFlagsInt=loadFlagsInt@entry=63, 
> observer=observer@entry=0x3d488b0, 
>     rawDecodingSettings=...) at 
> /home/timo/tmp/source/core/libs/dimg/dimg.cpp:429
> #3  0x00007ffff63aef20 in Digikam::DImg::load (this=this@entry=0x3d48a98, 
> filePath=..., observer=observer@entry=0x3d488b0, rawDecodingSettings=...)
>     at /home/timo/tmp/source/core/libs/dimg/dimg.cpp:373
> #4  0x00007ffff6463baf in Digikam::PreviewLoadingTask::execute 
> (this=0x3d488a0) at 
> /home/timo/tmp/source/core/libs/threadimageio/preview/previewtask.cpp:292
> #5  0x00007ffff647b2be in Digikam::LoadSaveThread::run (this=0x31cd1e0) at 
> /home/timo/tmp/source/core/libs/threadimageio/fileio/loadsavethread.cpp:133
> #6  0x00007ffff649cece in Digikam::DynamicThread::Private::run 
> (this=0x2e9b100) at 
> /home/timo/tmp/source/core/libs/threads/dynamicthread.cpp:183
> #7  0x00007fffe955a602 in ?? () from 
> /nix/store/m76jw52z58353hksxm6ws9qw21l7lmmq-qtbase-5.11.1/lib/libQt5Core.so.5
> #8  0x00007fffe956312b in ?? () from 
> /nix/store/m76jw52z58353hksxm6ws9qw21l7lmmq-qtbase-5.11.1/lib/libQt5Core.so.5
> #9  0x00007ffff51ed5a7 in start_thread () from 
> /nix/store/xdsjx0gba4id3yyqxv66bxnm2sqixkjj-glibc-2.27/lib/libpthread.so.0
> #10 0x00007fffe5c9d22f in clone () from 
> /nix/store/xdsjx0gba4id3yyqxv66bxnm2sqixkjj-glibc-2.27/lib/libc.so.6
> (gdb) 


With the patch applied (PNG instead of PGF):


> digikam.dimg: "/home/timo/Pictures/pictures/Pictures/[...]/IMG_7334.JPG"  : 
> JPEG file identified
> digikam.facesengine: detectMultiScale gave ()
> digikam.general: Found 0 faces in "IMG_2038.jpg" QSize(1600, 1200) 
> QSize(1600, 1200)
> digikam.general: Removing old entries ()
> digikam.facesengine: detectMultiScale: image size ( 800 , 600 ) 
> searchIncrement 1.1 grouping 3 flags 1 min size ( 26 , 26 )
> 
> Thread 27 "Thread (pooled)" received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0x7fff479ff700 (LWP 15737)]
> 0x00007ffff6487767 in Digikam::LoadingTask::progressInfo (this=0x30299d0, 
>     img=0x3029bc8, progress=0.699999988)
>     at 
> /home/timo/tmp/source/core/libs/threadimageio/fileio/loadsavetask.cpp:65
> 65              if (m_thread && m_thread->querySendNotifyEvent())
> (gdb) 
> (gdb) 
> (gdb) bt
> #0  0x00007ffff6487767 in Digikam::LoadingTask::progressInfo (this=0x30299d0, 
>     img=0x3029bc8, progress=0.699999988)
>     at 
> /home/timo/tmp/source/core/libs/threadimageio/fileio/loadsavetask.cpp:65
> #1  0x00007ffff6259ca0 in Digikam::JPEGLoader::load 
> (this=this@entry=0x7fff479ef7d0, 
>     filePath=..., observer=observer@entry=0x30299e0)
>     at /home/timo/tmp/source/core/libs/dimg/loaders/jpegloader.cpp:470
> #2  0x00007ffff63ae920 in Digikam::DImg::load (this=this@entry=0x3029bc8, 
>     filePath=..., loadFlagsInt=loadFlagsInt@entry=63, 
>     observer=observer@entry=0x30299e0, rawDecodingSettings=...)
>     at /home/timo/tmp/source/core/libs/dimg/dimg.cpp:429
> #3  0x00007ffff63aef20 in Digikam::DImg::load (this=this@entry=0x3029bc8, 
>     filePath=..., observer=observer@entry=0x30299e0, rawDecodingSettings=...)
>     at /home/timo/tmp/source/core/libs/dimg/dimg.cpp:373
> #4  0x00007ffff6463baf in Digikam::PreviewLoadingTask::execute 
> (this=0x30299d0)
>     at 
> /home/timo/tmp/source/core/libs/threadimageio/preview/previewtask.cpp:292
> #5  0x00007ffff647b2be in Digikam::LoadSaveThread::run (this=0x3630640)
>     at 
> /home/timo/tmp/source/core/libs/threadimageio/fileio/loadsavethread.cpp:133
> #6  0x00007ffff649cece in Digikam::DynamicThread::Private::run 
> (this=0x3437be0)
>     at /home/timo/tmp/source/core/libs/threads/dynamicthread.cpp:183
> #7  0x00007fffe955a602 in ?? ()
>    from 
> /nix/store/m76jw52z58353hksxm6ws9qw21l7lmmq-qtbase-5.11.1/lib/libQt5Core.so.5
> #8  0x00007fffe956312b in ?? ()
>    from 
> /nix/store/m76jw52z58353hksxm6ws9qw21l7lmmq-qtbase-5.11.1/lib/libQt5Core.so.5
> #9  0x00007ffff51ed5a7 in start_thread ()
>    from 
> /nix/store/xdsjx0gba4id3yyqxv66bxnm2sqixkjj-glibc-2.27/lib/libpthread.so.0
> #10 0x00007fffe5c9d22f in clone ()
>    from /nix/store/xdsjx0gba4id3yyqxv66bxnm2sqixkjj-glibc-2.27/lib/libc.so.6
> (gdb)

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