Bug 376217

Summary:	Crash when autostarting [QSqlDatabase::close]
Product:	[Applications] kdevelop	Reporter:	Mikael B <mikael79>
Component:	general	Assignee:	kdevelop-bugs-null
Status:	RESOLVED UPSTREAM
Severity:	crash	Keywords:	drkonqi
Priority:	NOR
Version First Reported In:	5.0.3
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Mikael B 2017-02-09 02:19:56 UTC

Application: kdevelop (5.0.3)

Qt Version: 5.6.2
Frameworks Version: 5.29.0
Operating System: Linux 4.9.7-101.fc24.x86_64 x86_64
Distribution: "Fedora release 24 (Twenty Four)"

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

Desktop Environment XFCE. Set to save workspaces on logout, and recover on login. 

I had 3 or 4 different kdevelop sessions running when I shut down the computer earlier today, expecting kdevelop to restart with these sessions when I started next time. Instead, I was greeted with two messages that the application had crashed.

-- Backtrace:
Application: KDevelop (kdevelop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8ca2289940 (LWP 1627))]

Thread 7 (Thread 0x7f8c632ca700 (LWP 2812)):
#0  0x00007f8cb5c0abd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f8cbd57d03a in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f8cc273ac56 in QQmlThread::internalCallMethodInMain(QQmlThread::Message*) () at /lib64/libQt5Qml.so.5
#3  0x00007f8cc270fec2 in QQmlImportDatabase::importDynamicPlugin(QString const&, QString const&, QString const&, int, QList<QQmlError>*) () at /lib64/libQt5Qml.so.5
#4  0x00007f8cc271107b in QQmlImportsPrivate::importExtension(QString const&, QString const&, int, int, QQmlImportDatabase*, QQmlTypeLoader::QmldirContent const*, QList<QQmlError>*) () at /lib64/libQt5Qml.so.5
#5  0x00007f8cc2711b36 in QQmlImportsPrivate::addLibraryImport(QString const&, QString const&, int, int, QString const&, QString const&, bool, QQmlImportDatabase*, QList<QQmlError>*) () at /lib64/libQt5Qml.so.5
#6  0x00007f8cc2711d7e in QQmlImports::addLibraryImport(QQmlImportDatabase*, QString const&, QString const&, int, int, QString const&, QString const&, bool, QList<QQmlError>*) () at /lib64/libQt5Qml.so.5
#7  0x00007f8cc26dd796 in QQmlTypeLoader::Blob::addImport(QV4::CompiledData::Import const*, QList<QQmlError>*) () at /lib64/libQt5Qml.so.5
#8  0x00007f8cc26de053 in QQmlTypeData::continueLoadFromIR() () at /lib64/libQt5Qml.so.5
#9  0x00007f8cc26de7b0 in QQmlTypeData::dataReceived(QQmlDataBlob::Data const&) () at /lib64/libQt5Qml.so.5
#10 0x00007f8cc26d7992 in QQmlTypeLoader::setData(QQmlDataBlob*, QQmlDataBlob::Data const&) () at /lib64/libQt5Qml.so.5
#11 0x00007f8cc26d81a1 in QQmlTypeLoader::setData(QQmlDataBlob*, QQmlFile*) () at /lib64/libQt5Qml.so.5
#12 0x00007f8cc26d93a9 in QQmlTypeLoader::loadThread(QQmlDataBlob*) () at /lib64/libQt5Qml.so.5
#13 0x00007f8cc26d97cd in QQmlTypeLoaderThread::loadThread(QQmlDataBlob*) () at /lib64/libQt5Qml.so.5
#14 0x00007f8cc273a884 in QQmlThreadPrivate::threadEvent() () at /lib64/libQt5Qml.so.5
#15 0x00007f8cc273aeea in QQmlThreadPrivate::event(QEvent*) () at /lib64/libQt5Qml.so.5
#16 0x00007f8cbdfa7e4c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#17 0x00007f8cbdfad32f in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#18 0x00007f8cbd71a9da in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#19 0x00007f8cbd71ca8f in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#20 0x00007f8cbd76a6c3 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#21 0x00007f8cb2fd76ba in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#22 0x00007f8cb2fd7a70 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#23 0x00007f8cb2fd7b1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#24 0x00007f8cbd76a73f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#25 0x00007f8cbd71981a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#26 0x00007f8cbd578353 in QThread::exec() () at /lib64/libQt5Core.so.5
#27 0x00007f8cc273a525 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#28 0x00007f8cbd57c9ba in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#29 0x00007f8cb5c055ca in start_thread () at /lib64/libpthread.so.0
#30 0x00007f8cbc9700ed in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f8c71d43700 (LWP 2601)):
#0  0x00007f8cbc9601cd in read () at /lib64/libc.so.6
#1  0x00007f8cb301a660 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007f8cb2fd74d6 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f8cb2fd79a4 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007f8cb2fd7d92 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#5  0x00007f8cadcdbe46 in gdbus_shared_thread_func () at /lib64/libgio-2.0.so.0
#6  0x00007f8cb2ffdcf5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#7  0x00007f8cb5c055ca in start_thread () at /lib64/libpthread.so.0
#8  0x00007f8cbc9700ed in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f8c72544700 (LWP 2600)):
#0  0x00007f8cbc96456d in poll () at /lib64/libc.so.6
#1  0x00007f8cb2fd7a06 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f8cb2fd7b1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f8cb2fd7b61 in glib_worker_main () at /lib64/libglib-2.0.so.0
#4  0x00007f8cb2ffdcf5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00007f8cb5c055ca in start_thread () at /lib64/libpthread.so.0
#6  0x00007f8cbc9700ed in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f8c731b4700 (LWP 2534)):
#0  0x00007f8cbc96456d in poll () at /lib64/libc.so.6
#1  0x00007f8cb2fd7a06 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f8cb2fd7b1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f8cbd76a75b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f8cbd71981a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f8cbd578353 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f8cbaba151f in KDevelop::CompletionWorkerThread::run() () at /lib64/libKDevPlatformLanguage.so.10
#7  0x00007f8cbd57c9ba in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f8cb5c055ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007f8cbc9700ed in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f8c829ce700 (LWP 2486)):
#0  0x00007f8cb5c0af79 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f8cbd57d018 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f8cbaaa8f68 in KDevelop::DUChainPrivate::CleanupThread::run() () at /lib64/libKDevPlatformLanguage.so.10
#3  0x00007f8cbd57c9ba in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#4  0x00007f8cb5c055ca in start_thread () at /lib64/libpthread.so.0
#5  0x00007f8cbc9700ed in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f8c8f03b700 (LWP 2202)):
#0  0x00007f8cbd7690d0 in QTimerInfoList::repairTimersIfNeeded() () at /lib64/libQt5Core.so.5
#1  0x00007f8cbd769163 in QTimerInfoList::timerWait(timespec&) () at /lib64/libQt5Core.so.5
#2  0x00007f8cbd76a2bc in timerSourcePrepareHelper(GTimerSource*, int*) () at /lib64/libQt5Core.so.5
#3  0x00007f8cbd76a385 in timerSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#4  0x00007f8cb2fd6f59 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#5  0x00007f8cb2fd792b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#6  0x00007f8cb2fd7b1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#7  0x00007f8cbd76a75b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#8  0x00007f8cbd71981a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#9  0x00007f8cbd578353 in QThread::exec() () at /lib64/libQt5Core.so.5
#10 0x00007f8cc33c7559 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#11 0x00007f8cbd57c9ba in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#12 0x00007f8cb5c055ca in start_thread () at /lib64/libpthread.so.0
#13 0x00007f8cbc9700ed in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f8ca2289940 (LWP 1627)):
[KCrash Handler]
#4  0x00007f8cac9624b1 in QSqlDatabase::close() () at /lib64/libQt5Sql.so.5
#5  0x00007f8cac964b29 in QSqlDatabase::~QSqlDatabase() () at /lib64/libQt5Sql.so.5
#6  0x00007f8cac9677dd in QHash<QString, QSqlDatabase>::deleteNode2(QHashData::Node*) () at /lib64/libQt5Sql.so.5
#7  0x00007f8cbd5d1349 in QHashData::free_helper(void (*)(QHashData::Node*)) () at /lib64/libQt5Core.so.5
#8  0x00007f8cac962207 in (anonymous namespace)::Q_QGS_dbDict::innerFunction()::Holder::~Holder() () at /lib64/libQt5Sql.so.5
#9  0x00007f8cbc8a6258 in __run_exit_handlers () at /lib64/libc.so.6
#10 0x00007f8cbc8a62a5 in  () at /lib64/libc.so.6
#11 0x00007f8ca4a39a7a in  () at /lib64/libICE.so.6
#12 0x00007f8ca4a3fb84 in IceFlush () at /lib64/libICE.so.6
#13 0x00007f8c9b981b31 in sm_setProperty(char const*, char const*, int, SmPropValue*) [clone .part.2] () at /lib64/libQt5XcbQpa.so.5
#14 0x00007f8c9b981ddc in sm_setProperty(QString const&, QString const&) () at /lib64/libQt5XcbQpa.so.5
#15 0x00007f8c9b9828a1 in sm_performSaveYourself(QXcbSessionManager*) () at /lib64/libQt5XcbQpa.so.5
#16 0x00007f8c9b983394 in sm_saveYourselfCallback(_SmcConn*, void*, int, int, int, int) () at /lib64/libQt5XcbQpa.so.5
#17 0x00007f8ca482ecc2 in _SmcProcessMessage () at /lib64/libSM.so.6
#18 0x00007f8ca4a43edb in IceProcessMessages () at /lib64/libICE.so.6
#19 0x00007f8cbd742dd2 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#20 0x00007f8cbd7b589e in QSocketNotifier::activated(int, QSocketNotifier::QPrivateSignal) () at /lib64/libQt5Core.so.5
#21 0x00007f8cbd74edf2 in QSocketNotifier::event(QEvent*) () at /lib64/libQt5Core.so.5
#22 0x00007f8cbdfa7e4c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#23 0x00007f8cbdfad32f in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#24 0x00007f8cbd71a9da in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#25 0x00007f8cbd76b06f in socketNotifierSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#26 0x00007f8cb2fd76ba in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#27 0x00007f8cb2fd7a70 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#28 0x00007f8cb2fd7b1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#29 0x00007f8cbd76a73f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#30 0x00007f8cbd71981a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#31 0x00007f8cbe517dce in KJob::exec() () at /lib64/libKF5CoreAddons.so.5
#32 0x00007f8cc2f6fde1 in KDevelop::ProjectPrivate::initProjectFiles() () at /lib64/libKDevPlatformShell.so.10
#33 0x00007f8cc2f6d567 in KDevelop::Project::open(KDevelop::Path const&) () at /lib64/libKDevPlatformShell.so.10
#34 0x00007f8cc2f68300 in KDevelop::ProjectControllerPrivate::importProject(QUrl const&) () at /lib64/libKDevPlatformShell.so.10
#35 0x00007f8cc2f608ed in KDevelop::ProjectController::openProject(QUrl const&) () at /lib64/libKDevPlatformShell.so.10
#36 0x00007f8cc2f5c664 in KDevelop::ProjectController::openProjects(QList<QUrl> const&) () at /lib64/libKDevPlatformShell.so.10
#37 0x00007f8cc2f5fad1 in KDevelop::ProjectController::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libKDevPlatformShell.so.10
#38 0x00007f8cbd743e19 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#39 0x00007f8cbdfa7e4c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#40 0x00007f8cbdfad32f in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#41 0x00007f8cbd71a9da in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#42 0x00007f8cbd71ca8f in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#43 0x00007f8cbd76a6c3 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#44 0x00007f8cb2fd76ba in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#45 0x00007f8cb2fd7a70 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#46 0x00007f8cb2fd7b1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#47 0x00007f8cbd76a73f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#48 0x00007f8cbd71981a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#49 0x00007f8cbd7213bc in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#50 0x0000557c5dbf19cc in main ()

Possible duplicates by query: bug 368731, bug 350422.

Reported using DrKonqi

Comment 1 Kevin Funk 2017-02-14 08:59:58 UTC

Looks like a bug in QtSql, nothing we can do about.

See:
Thread 1 (Thread 0x7f8ca2289940 (LWP 1627)):
[KCrash Handler]
#4  0x00007f8cac9624b1 in QSqlDatabase::close() () at /lib64/libQt5Sql.so.5
#5  0x00007f8cac964b29 in QSqlDatabase::~QSqlDatabase() () at /lib64/libQt5Sql.so.5
...