Bug 402122

Application: digikam (5.9.0)

Qt Version: 5.11.1
Frameworks Version: 5.52.0
Operating System: Linux 4.19.7-300.fc29.x86_64 x86_64
Distribution: "Fedora release 29 (Twenty Nine)"

-- Information about the crash:
- What I was doing when the application crashed: Was scrolling images routinely when it just crashed. I am using Fedora Core 29 KDE Version

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1f0d470440 (LWP 4464))]

Thread 11 (Thread 0x7f1ea1fff700 (LWP 4735)):
[KCrash Handler]
#6  0x00007f1f2249fbc5 in QMutex::lock() () at /lib64/libQt5Core.so.5
#7  0x00007f1f285b16ba in Digikam::ThumbnailLoadingTask::execute() () at /lib64/libdigikamcore.so.5.9.0
#8  0x00007f1f28588478 in Digikam::LoadSaveThread::run() () at /lib64/libdigikamcore.so.5.9.0
#9  0x00007f1f285c55f2 in Digikam::DynamicThread::DynamicThreadPriv::run() () at /lib64/libdigikamcore.so.5.9.0
#10 0x00007f1f224a4ab1 in  () at /lib64/libQt5Core.so.5
#11 0x00007f1f224ac4bb in  () at /lib64/libQt5Core.so.5
#12 0x00007f1f27c1258e in start_thread () at /lib64/libpthread.so.0
#13 0x00007f1f209596a3 in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f1e22ff5700 (LWP 4533)):
#0  0x00007f1f27c1877c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f1f20c80690 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () at /lib64/libstdc++.so.6
#2  0x00007f1f24c99ab2 in WTF::ParkingLot::parkConditionally(void const*, std::function<bool ()>, std::function<void ()>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >) () at /lib64/libQt5WebKit.so.5
#3  0x00007f1f24c98332 in WTF::ParallelHelperPool::waitForClientWithTask(WTF::Locker<WTF::LockBase> const&) () at /lib64/libQt5WebKit.so.5
#4  0x00007f1f24c9840e in WTF::ParallelHelperPool::helperThreadBody() () at /lib64/libQt5WebKit.so.5
#5  0x00007f1f24c9c2ac in WTF::threadEntryPoint(void*) () at /lib64/libQt5WebKit.so.5
#6  0x00007f1f24cc014e in WTF::wtfThreadEntryPoint(void*) () at /lib64/libQt5WebKit.so.5
#7  0x00007f1f27c1258e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f1f209596a3 in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f1e237f6700 (LWP 4532)):
#0  0x00007f1f27c1877c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f1f20c80690 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () at /lib64/libstdc++.so.6
#2  0x00007f1f24c99ab2 in WTF::ParkingLot::parkConditionally(void const*, std::function<bool ()>, std::function<void ()>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >) () at /lib64/libQt5WebKit.so.5
#3  0x00007f1f24c98332 in WTF::ParallelHelperPool::waitForClientWithTask(WTF::Locker<WTF::LockBase> const&) () at /lib64/libQt5WebKit.so.5
#4  0x00007f1f24c9840e in WTF::ParallelHelperPool::helperThreadBody() () at /lib64/libQt5WebKit.so.5
#5  0x00007f1f24c9c2ac in WTF::threadEntryPoint(void*) () at /lib64/libQt5WebKit.so.5
#6  0x00007f1f24cc014e in WTF::wtfThreadEntryPoint(void*) () at /lib64/libQt5WebKit.so.5
#7  0x00007f1f27c1258e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f1f209596a3 in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f1e257fa700 (LWP 4531)):
#0  0x00007f1f27c1877c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f1f20c80690 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () at /lib64/libstdc++.so.6
#2  0x00007f1f24c99ab2 in WTF::ParkingLot::parkConditionally(void const*, std::function<bool ()>, std::function<void ()>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >) () at /lib64/libQt5WebKit.so.5
#3  0x00007f1f24c98332 in WTF::ParallelHelperPool::waitForClientWithTask(WTF::Locker<WTF::LockBase> const&) () at /lib64/libQt5WebKit.so.5
#4  0x00007f1f24c9840e in WTF::ParallelHelperPool::helperThreadBody() () at /lib64/libQt5WebKit.so.5
#5  0x00007f1f24c9c2ac in WTF::threadEntryPoint(void*) () at /lib64/libQt5WebKit.so.5
#6  0x00007f1f24cc014e in WTF::wtfThreadEntryPoint(void*) () at /lib64/libQt5WebKit.so.5
#7  0x00007f1f27c1258e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f1f209596a3 in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f1ea37ff700 (LWP 4483)):
#0  0x00007f1f27c1877c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f1f20c80690 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () at /lib64/libstdc++.so.6
#2  0x00007f1f24c99ab2 in WTF::ParkingLot::parkConditionally(void const*, std::function<bool ()>, std::function<void ()>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >) () at /lib64/libQt5WebKit.so.5
#3  0x00007f1f24675a69 in JSC::DFG::Worklist::runThread(JSC::DFG::ThreadData*) () at /lib64/libQt5WebKit.so.5
#4  0x00007f1f24c9c2ac in WTF::threadEntryPoint(void*) () at /lib64/libQt5WebKit.so.5
#5  0x00007f1f24cc014e in WTF::wtfThreadEntryPoint(void*) () at /lib64/libQt5WebKit.so.5
#6  0x00007f1f27c1258e in start_thread () at /lib64/libpthread.so.0
#7  0x00007f1f209596a3 in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f1eeee8f700 (LWP 4476)):
#0  0x00007f1f27c1877c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f1f224acae3 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f1f285c4139 in Digikam::ParkingThread::run() () at /lib64/libdigikamcore.so.5.9.0
#3  0x00007f1f224ac4bb in  () at /lib64/libQt5Core.so.5
#4  0x00007f1f27c1258e in start_thread () at /lib64/libpthread.so.0
#5  0x00007f1f209596a3 in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f1efd1dd700 (LWP 4475)):
#0  0x00007f1f27c1877c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f1eef63bb93 in  () at /usr/lib64/dri/i965_dri.so
#2  0x00007f1eef63b8eb in  () at /usr/lib64/dri/i965_dri.so
#3  0x00007f1f27c1258e in start_thread () at /lib64/libpthread.so.0
#4  0x00007f1f209596a3 in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f1efebef700 (LWP 4467)):
#0  0x00007fff53322bc9 in clock_gettime ()
#1  0x00007f1f20967692 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f1f2268c035 in  () at /lib64/libQt5Core.so.5
#3  0x00007f1f2268ab1d in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5
#4  0x00007f1f2268af29 in QTimerInfoList::timerWait(timespec&) () at /lib64/libQt5Core.so.5
#5  0x00007f1f2268c4e4 in  () at /lib64/libQt5Core.so.5
#6  0x00007f1f2268c592 in  () at /lib64/libQt5Core.so.5
#7  0x00007f1f2077aae9 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#8  0x00007f1f2077b4db in  () at /lib64/libglib-2.0.so.0
#9  0x00007f1f2077b6d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#10 0x00007f1f2268c82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#11 0x00007f1f2263b17b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#12 0x00007f1f224a3046 in QThread::exec() () at /lib64/libQt5Core.so.5
#13 0x00007f1f23556f89 in  () at /lib64/libQt5DBus.so.5
#14 0x00007f1f224ac4bb in  () at /lib64/libQt5Core.so.5
#15 0x00007f1f27c1258e in start_thread () at /lib64/libpthread.so.0
#16 0x00007f1f209596a3 in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f1eff842700 (LWP 4466)):
#0  0x00007f1f2094e421 in poll () at /lib64/libc.so.6
#1  0x00007f1f205fc39f in  () at /lib64/libxcb.so.1
#2  0x00007f1f205fe01a in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f1eff927da9 in  () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f1f224ac4bb in  () at /lib64/libQt5Core.so.5
#5  0x00007f1f27c1258e in start_thread () at /lib64/libpthread.so.0
#6  0x00007f1f209596a3 in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f1f0d469700 (LWP 4465)):
#0  0x00007f1f27c1877c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f1f20c80690 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () at /lib64/libstdc++.so.6
#2  0x00007f1f2609520a in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop() () at /lib64/libQt5WebKit.so.5
#3  0x00007f1f2609533f in  () at /lib64/libQt5WebKit.so.5
#4  0x00007f1f20c86943 in  () at /lib64/libstdc++.so.6
#5  0x00007f1f27c1258e in start_thread () at /lib64/libpthread.so.0
#6  0x00007f1f209596a3 in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f1f0d470440 (LWP 4464)):
#0  0x00007f1f27c1877c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f1f205fc5a2 in  () at /lib64/libxcb.so.1
#2  0x00007f1f205fdd2f in  () at /lib64/libxcb.so.1
#3  0x00007f1f205fdf4c in xcb_request_check () at /lib64/libxcb.so.1
#4  0x00007f1eff947341 in  () at /lib64/libQt5XcbQpa.so.5
#5  0x00007f1eff94753c in  () at /lib64/libQt5XcbQpa.so.5
#6  0x00007f1eff94942d in  () at /lib64/libQt5XcbQpa.so.5
#7  0x00007f1eff9494ed in  () at /lib64/libQt5XcbQpa.so.5
#8  0x00007f1f22ba9eef in QBackingStore::~QBackingStore() () at /lib64/libQt5Gui.so.5
#9  0x00007f1f22fba9d7 in  () at /lib64/libQt5Widgets.so.5
#10 0x00007f1f22fc35d6 in QWidgetPrivate::deleteTLSysExtra() () at /lib64/libQt5Widgets.so.5
#11 0x00007f1f22fc82b8 in QWidget::destroy(bool, bool) () at /lib64/libQt5Widgets.so.5
#12 0x00007f1f22f95cfc in QApplication::~QApplication() () at /lib64/libQt5Widgets.so.5
#13 0x0000562c20b3c0b2 in main ()
[Inferior 1 (process 4464) detached]

Possible duplicates by query: bug 394865, bug 393758.

Reported using DrKonqi