Bug 436101

Summary:	Krunner does not appear when pressing ALT+F2
Product:	[Plasma] krunner	Reporter:	Tobias <sskyman>
Component:	general	Assignee:	Alexander Lohnau <alexander.lohnau>
Status:	RESOLVED UNMAINTAINED
Severity:	crash	CC:	nate, plasma-bugs-null, sskyman
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	5.12.9
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	New crash information added by DrKonqi

Description Tobias 2021-04-23 17:08:34 UTC

Application: krunner (5.12.9)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 5.4.0-72-generic x86_64
Distribution: Ubuntu 18.04.5 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I pressed ALT+F2 when the focus was on the desktop.
KRunner did not appear, but drkonqi displayed it's icon in the tray.

The crash can be reproduced sometimes.

-- Backtrace:
Application: krunner (krunner), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fde6b9b90c0 (LWP 30783))]

Thread 4 (Thread 0x7fde475ef700 (LWP 30786)):
#0  0x00007fde6735acb9 in __GI___poll (fds=0x7fde40004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fde62f206e9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fde62f207fc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde67ca38ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde67c4890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fde67a6723a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde6a60b6f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fde67a6c17d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fde652836db in start_thread (arg=0x7fde475ef700) at pthread_create.c:463
#9  0x00007fde6736771f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fde4f455700 (LWP 30785)):
#0  0x00007fde67ca1fe3 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fde67ca361e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fde62f1fc48 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde62f2061b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fde62f207fc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fde67ca38ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde67c4890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fde67a6723a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fde695add45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007fde67a6c17d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fde652836db in start_thread (arg=0x7fde4f455700) at pthread_create.c:463
#11 0x00007fde6736771f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fde5608b700 (LWP 30784)):
#0  0x00007fde6735acb9 in __GI___poll (fds=0x7fde5608aca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fde66773747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fde6677536a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fde58c345e9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fde67a6c17d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fde652836db in start_thread (arg=0x7fde5608b700) at pthread_create.c:463
#6  0x00007fde6736771f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fde6b9b90c0 (LWP 30783)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007fde67286921 in __GI_abort () at abort.c:79
#8  0x00007fde67a56fb7 in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fde6aab22a7 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fde6aab3275 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fde6aab3e9a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fde682183d5 in QWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007fde6ab286c5 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007fde6b5c1323 in PlasmaQuick::Dialog::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#15 0x000055721385f16f in View::event (this=0x7ffdb3799eb0, event=0x7ffdb3799aa0) at ./krunner/view.cpp:195
#16 0x00007fde68c5a83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007fde68c62104 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007fde67c4a8d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007fde6820d49f in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007fde6820e0dd in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#21 0x00007fde681e52eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#22 0x00007fde58c99260 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#23 0x00007fde62f20537 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fde62f20770 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fde62f207fc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fde67ca388f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fde67c4890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007fde67c519b4 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x000055721385c881 in main (argc=<optimized out>, argv=<optimized out>) at ./krunner/main.cpp:92

Possible duplicates by query: bug 435770, bug 430419, bug 425662, bug 424911, bug 423951.

Reported using DrKonqi

Comment 1 Tobias 2021-04-23 17:11:12 UTC

Created attachment 137842 [details]
New crash information added by DrKonqi

krunner (5.12.9) using Qt 5.9.5

- What I was doing when the application crashed:
Now I did a right-click on the desktop and select "Execute command" from the context menu.

-- Backtrace (Reduced):
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007f56f64ac921 in __GI_abort () at abort.c:79
#8  0x00007f56f6c7cfb7 in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f56f9cd82a7 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
[...]
#12 0x00007f56f743e3d5 in QWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5

Comment 2 Nate Graham 2021-04-23 19:25:18 UTC

> krunner (5.12.9)
Looks like you're using a very old version. 5.12 is no longer supported; I would recommend upgrading to Ubuntu/Kubuntu 20.04 if you like LTS versions (which will get you Plasma 5.18) or Ubuntu/Kubuntu 21.04 (which will get you Plasma 5.21).

Comment 3 Tobias 2021-04-24 07:57:53 UTC

Dear Nate,

thank you for your fast response!

For everyone hitting the same bug:
Disable the plugin "windowed widgets" in krunner.
See: https://unix.stackexchange.com/a/211668/141641