https://bugs.kde.org/show_bug.cgi?id=385313

            Bug ID: 385313
           Summary: Crash on attempting to create fingerprints
           Product: digikam
           Version: 5.4.0
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: digikam-bugs-n...@kde.org
          Reporter: k...@kolivas.org
  Target Milestone: ---

Application: digikam (5.4.0)

Qt Version: 5.7.1
Frameworks Version: 5.31.0
Operating System: Linux 4.12.14-ck2+ x86_64
Distribution: Ubuntu 17.04

-- Information about the crash:
- What I was doing when the application crashed:

I have a large catalogue of pictures on an NFS shared directory (10,000) and I
try to perform maintenance->find duplicates or create fingerprints it crashed a
few times in a row.

The crash can be reproduced every time.

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7f205dfc8b40 (LWP 32190))]

Thread 16 (Thread 0x7f1f6affd700 (LWP 32314)):
[KCrash Handler]
#6  0x00007f20596b0494 in __memmove_sse2_unaligned_erms () at
../sysdeps/x86_64/multiarch/../multiarch/memmove-vec-unaligned-erms.S:242
#7  0x00007f2055b1b0fa in  () at /usr/lib/x86_64-linux-gnu/libpng16.so.16
#8  0x00007f2055b0e8e5 in png_read_row () at
/usr/lib/x86_64-linux-gnu/libpng16.so.16
#9  0x00007f2055b102e9 in png_read_rows () at
/usr/lib/x86_64-linux-gnu/libpng16.so.16
#10 0x00007f205c79e48a in Digikam::PNGLoader::load(QString const&,
Digikam::DImgLoaderObserver*) () at /usr/lib/digikam/libdigikamcore.so.5.4.0
#11 0x00007f205c8fccb1 in Digikam::DImg::load(QString const&, int,
Digikam::DImgLoaderObserver*, Digikam::DRawDecoding const&) () at
/usr/lib/digikam/libdigikamcore.so.5.4.0
#12 0x00007f205c9af4a2 in  () at /usr/lib/digikam/libdigikamcore.so.5.4.0
#13 0x00007f205c9ad8ec in
Digikam::PreviewLoadThread::loadSynchronously(Digikam::LoadingDescription
const&) () at /usr/lib/digikam/libdigikamcore.so.5.4.0
#14 0x00007f205c9adb80 in
Digikam::PreviewLoadThread::loadFastSynchronously(QString const&, int,
Digikam::IccProfile const&) () at /usr/lib/digikam/libdigikamcore.so.5.4.0
#15 0x00007f205d7e3235 in  () at /usr/lib/digikam/libdigikamgui.so.5.4.0
#16 0x00007f205a400fdf in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f205a404c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f20562046da in start_thread (arg=0x7f1f6affd700) at
pthread_create.c:456
#19 0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 15 (Thread 0x7f1f6bfff700 (LWP 32313)):
#0  0x00007f205620a510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f205a405aeb in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f205c9d61e4 in Digikam::ActionThreadBase::run() () at
/usr/lib/digikam/libdigikamcore.so.5.4.0
#3  0x00007f205a404c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f20562046da in start_thread (arg=0x7f1f6bfff700) at
pthread_create.c:456
#5  0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 14 (Thread 0x7f1fc97fa700 (LWP 32205)):
#0  0x00007f205620a510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f204dbac8d3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f204ded4641 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f20562046da in start_thread (arg=0x7f1fc97fa700) at
pthread_create.c:456
#4  0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 13 (Thread 0x7f1fc9ffb700 (LWP 32204)):
#0  0x00007f205620a510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f204dbac8d3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f204ded4641 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f20562046da in start_thread (arg=0x7f1fc9ffb700) at
pthread_create.c:456
#4  0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 12 (Thread 0x7f1fca7fc700 (LWP 32203)):
#0  0x00007f205620a510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f204dbac8d3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f204ded4641 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f20562046da in start_thread (arg=0x7f1fca7fc700) at
pthread_create.c:456
#4  0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 11 (Thread 0x7f1fcaffd700 (LWP 32202)):
#0  0x00007f205620a510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f204dbac8d3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f204ded4641 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f20562046da in start_thread (arg=0x7f1fcaffd700) at
pthread_create.c:456
#4  0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 10 (Thread 0x7f1fcb7fe700 (LWP 32201)):
#0  0x00007f205620a510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f204dbac8d3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f204ded4641 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f20562046da in start_thread (arg=0x7f1fcb7fe700) at
pthread_create.c:456
#4  0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 9 (Thread 0x7f1fcbfff700 (LWP 32200)):
#0  0x00007f205620a510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f204dbac8d3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f204ded4641 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f20562046da in start_thread (arg=0x7f1fcbfff700) at
pthread_create.c:456
#4  0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 8 (Thread 0x7f1fd0f03700 (LWP 32199)):
#0  0x00007f205620a510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f204dbab7b1 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f204ded4641 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f20562046da in start_thread (arg=0x7f1fd0f03700) at
pthread_create.c:456
#4  0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 7 (Thread 0x7f1fd1942700 (LWP 32198)):
#0  0x00007f20597178ad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f204fea4b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f204fe60042 in g_main_context_check () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f204fe60514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f204fe6068c in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f205a6280bb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f205a5d1bea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f205a3fff83 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f205a404c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f20562046da in start_thread (arg=0x7f1fd1942700) at
pthread_create.c:456
#10 0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7f2012145700 (LWP 32197)):
#0  0x00007f205620a510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f204dea394b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f204dea3989 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f20562046da in start_thread (arg=0x7f2012145700) at
pthread_create.c:456
#4  0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7f2028c56700 (LWP 32196)):
#0  0x00007f205620a510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f205a405aeb in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f205c9d74b2 in  () at /usr/lib/digikam/libdigikamcore.so.5.4.0
#3  0x00007f205a404c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f20562046da in start_thread (arg=0x7f2028c56700) at
pthread_create.c:456
#5  0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7f2029457700 (LWP 32194)):
#0  0x00007f205620a510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f205a405aeb in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f205d618c5a in Digikam::ScanController::run() () at
/usr/lib/digikam/libdigikamgui.so.5.4.0
#3  0x00007f205a404c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f20562046da in start_thread (arg=0x7f2029457700) at
pthread_create.c:456
#5  0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7f202a193700 (LWP 32193)):
#0  0x00007f20597178ad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f204fea4b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f204fe60042 in g_main_context_check () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f204fe60514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f204fe6068c in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f205a6280bb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f205a5d1bea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f205a3fff83 in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f20564335d5 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f205a404c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f20562046da in start_thread (arg=0x7f202a193700) at
pthread_create.c:456
#11 0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7f202e1ce700 (LWP 32191)):
#0  0x00007f2059728d20 in __libc_recvmsg (fd=3, msg=0x7f202e1cb9a0, flags=0) at
../sysdeps/unix/sysv/linux/recvmsg.c:28
#1  0x00007f205e0b6b2f in udev_monitor_receive_device () at
/lib/x86_64-linux-gnu/libudev.so.1
#2  0x00007f20392e17bb in  () at /lib/x86_64-linux-gnu/libusb-1.0.so.0
#3  0x00007f20562046da in start_thread (arg=0x7f202e1ce700) at
pthread_create.c:456
#4  0x00007f2059727d7f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7f205dfc8b40 (LWP 32190)):
#0  0x00007f205620a510 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f205a405aeb in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f205a400732 in QThreadPoolPrivate::waitForDone(int) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f205a400b31 in QThreadPool::waitForDone(int) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f205c9d58a2 in Digikam::ActionThreadBase::~ActionThreadBase() () at
/usr/lib/digikam/libdigikamcore.so.5.4.0
#5  0x00007f205a050dd9 in Digikam::DatesDBJobsThread::~DatesDBJobsThread() ()
at /usr/lib/digikam/libdigikamdatabase.so.5.4.0
#6  0x00007f205a5fdfb1 in QObjectPrivate::deleteChildren() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f205a60727f in QObject::~QObject() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f205a05b497 in  () at /usr/lib/digikam/libdigikamdatabase.so.5.4.0
#9  0x00007f2059659270 in __run_exit_handlers (status=1, listp=0x7f20599e05d8
<__exit_funcs>, run_list_atexit=run_list_atexit@entry=true,
run_dtors=run_dtors@entry=true) at exit.c:83
#10 0x00007f20596592ca in __GI_exit (status=<optimized out>) at exit.c:105
#11 0x00007f202d3d7673 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#12 0x00007f205a600639 in QObject::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f205b2aa35c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f205b2b1b21 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f205a5d3c00 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f205a5d639d in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f205a627c93 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f204fe60377 in g_main_context_dispatch () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f204fe605e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f204fe6068c in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f205a62809f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f205a5d1bea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f205a5da33c in QCoreApplication::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x0000558bee92ed11 in  ()
#25 0x00007f205963f3f1 in __libc_start_main (main=0x558bee92d8e0, argc=3,
argv=0x7ffeb41296f8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffeb41296e8) at ../csu/libc-start.c:291
#26 0x0000558bee92f61a in _start ()

Reported using DrKonqi

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