Details
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Bug
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Resolution: Out of scope
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Not Evaluated
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None
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5.12.4
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None
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Gentoo, KDE-Plasma, X11, glibc-2.28-r6, gcc-8.3.0-r1
Also reproduced with clang 8.0.1
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Linux/X11
Description
I'm regularly getting a crash in the main QEventLoop. The application runs fine for a time, but just crashes after a random period.
It doesn't matter how I interact with the application, the issue reproduces after a random interval, it doesn't appear to occur after a particular interaction or event.
The crashes occur in two distinct places (I presume they are related).
*** longjmp causes uninitialized stack frame *** Signal: SIGABRT (signal SIGABRT) raise 0x00007f817b4f742b abort 0x00007f817b4e0535 __libc_message 0x00007f817b53ce07 __fortify_fail_abort 0x00007f817b5d8045 __fortify_fail 0x00007f817b5d8081 ____longjmp_chk 0x00007f817b5d7e8d __longjmp_chk 0x00007f817b5d7deb <unknown> 0x00007f8180b82f05 <signal handler called> 0x00007f817d94a810 poll 0x00007f817b5b7e33 <unknown> 0x00007f817ac60546 g_main_context_iteration 0x00007f817ac6066c QEventDispatcherGlib::processEvents qeventdispatcher_glib.cpp:422 QXcbGlibEventDispatcher::processEvents qxcbeventdispatcher.cpp:143 QEventLoop::processEvents atomic_base.h:707 QEventLoop::exec qflags.h:122 QCoreApplication::exec qflags.h:120 QGuiApplication::exec qguiapplication.cpp:1784 QApplication::exec qapplication.cpp:2894 MyGlobal::run() MyGlobal.cpp:197 main main.cpp:90 __libc_start_main 0x00007f817b4e24fb _start 0x000056487eb5e37a
And here's the second location:
__GI_raise 0x00007f1fe4d3942b
__GI_abort 0x00007f1fe4d22535
__libc_message 0x00007f1fe4d7ee07
__GI___fortify_fail_abort 0x00007f1fe4e1a045
__GI___fortify_fail 0x00007f1fe4e1a081
____longjmp_chk 0x00007f1fe4e19e8d
__longjmp_chk 0x00007f1fe4e19deb
<unknown> 0x00007f1fea3c4f05
<unknown> 0x00007f1fe718c810
__pthread_cond_wait 0x00007f1fe71870cc
QWaitCondition::wait(QMutex*, QDeadlineTimer) qwaitcondition_unix.cpp:146
QWaitCondition::wait(QMutex*, QDeadlineTimer) qwaitcondition_unix.cpp:225
QWaitCondition::wait(QMutex*, unsigned long) qwaitcondition_unix.cpp:208
QSGThreadedRenderLoop::polishAndSync(QSGThreadedRenderLoop::Window*, bool) qsgthreadedrenderloop.cpp:1231
QSGThreadedRenderLoop::handleUpdateRequest(QQuickWindow*) qsgthreadedrenderloop.cpp:1056
QQuickWindow::event(QEvent*) qquickwindow.cpp:1672
MyGUI::event(QEvent*) planckgui.cpp:486
QApplicationPrivate::notify_helper(QObject*, QEvent*) qapplication.cpp:3738
QApplication::notify(QObject*, QEvent*) qapplication.cpp:3094
MyApplication::notify(QObject*, QEvent*) MyApplication.cpp:84
QCoreApplication::notifyInternal2(QObject*, QEvent*) qcoreapplication.cpp:1084
QCoreApplication::sendEvent(QObject*, QEvent*) qcoreapplication.cpp:1472
QPlatformWindow::deliverUpdateRequest() qplatformwindow.cpp:793
QPlatformWindow::windowEvent(QEvent*) qplatformwindow.cpp:478
QXcbWindow::windowEvent(QEvent*) qxcbwindow.cpp:2380
QGuiApplicationPrivate::sendQWindowEventToQPlatformWindow(QWindow*, QEvent*) qguiapplication.cpp:1828
QApplication::notify(QObject*, QEvent*) qapplication.cpp:2944
MyApplication::notify(QObject*, QEvent*) MyApplication.cpp:84
QCoreApplication::notifyInternal2(QObject*, QEvent*) qcoreapplication.cpp:1084
QCoreApplication::sendEvent(QObject*, QEvent*) qcoreapplication.cpp:1472
QTimerInfoList::activateTimers() qtimerinfo_unix.cpp:643
::timerSourceDispatch(GSource *, GSourceFunc, gpointer) qeventdispatcher_glib.cpp:182
::idleTimerSourceDispatch(GSource *, GSourceFunc, gpointer) qeventdispatcher_glib.cpp:229
g_main_context_dispatch 0x00007f1fe44a233d
<unknown> 0x00007f1fe44a25d8
g_main_context_iteration 0x00007f1fe44a266c
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) qeventdispatcher_glib.cpp:422
QXcbGlibEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) qxcbeventdispatcher.cpp:143
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) qeventloop.cpp:138
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) qeventloop.cpp:225
QCoreApplication::exec() qcoreapplication.cpp:1385
QGuiApplication::exec() qguiapplication.cpp:1784
QApplication::exec() qapplication.cpp:2894
MyGlobal::run() MyGlobal.cpp:197
main main.cpp:90
__libc_start_main 0x00007f1fe4d244fb
_start 0x000055ca1938c37a