Bug 485962

Summary:	ghostwriter segfaults
Product:	[Applications] ghostwriter	Reporter:	phoenix <felix>
Component:	general	Assignee:	megan.conkle
Status:	RESOLVED DUPLICATE
Severity:	normal
Priority:	NOR
Version:	24.02.2
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description phoenix 2024-04-22 14:15:29 UTC

SUMMARY

Running ghostwriter 24.02.2 on openSUSE Tumbleweed results in a segfault, already since before Plasma6.

> $ ghostwriter SOMEFILE.md
> QFontDatabase: Must construct a QGuiApplication before accessing QFontDatabase
> [1]    8613 IOT instruction (core dumped)  ghostwriter SOMEFILE.md

This is a follow-up of https://bugzilla.suse.com/show_bug.cgi?id=1215849, where someone has identified the problem as related to `libpbf.so`, where the QFontDatabase is accessed before creating the QGuiApplication (see https://bugzilla.suse.com/show_bug.cgi?id=1215849#c4).

STEPS TO REPRODUCE
1. Run `ghostwriter`

OBSERVED RESULT

* `ghostwriter` crashes with SIGSEGV

EXPECTED RESULT

* ghostwriter starts without crashing

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.0.4
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.1.0
Qt Version: 6.7.0

ADDITIONAL INFORMATION

Comment 1 phoenix 2024-04-22 14:15:49 UTC

This might be a duplicate of https://bugs.kde.org/show_bug.cgi?id=485691, however from the error message therein I cannot say for sure.

Comment 2 phoenix 2024-04-22 14:16:46 UTC

Backtrace:

Thread 1 "ghostwriter" received signal SIGSEGV, Segmentation fault.
0x00007fffec342307 in QKeySequence::operator=(QKeySequence const&) () from /lib64/libQt6Gui.so.6
(gdb) bt
#0  0x00007fffec342307 in QKeySequence::operator=(QKeySequence const&) () from /lib64/libQt6Gui.so.6
#1  0x00007fffecac0eca in QAbstractButton::setShortcut(QKeySequence const&) () from /lib64/libQt6Widgets.so.6
#2  0x00007fffecac0f61 in QAbstractButton::setText(QString const&) () from /lib64/libQt6Widgets.so.6
#3  0x00005555555e0410 in ?? ()
#4  0x00007fffeb7e8443 in ?? () from /lib64/libQt6Core.so.6
#5  0x00005555555e981f in ?? ()
#6  0x00007fffeca0e075 in QWidget::event(QEvent*) () from /lib64/libQt6Widgets.so.6
#7  0x00007fffeca99532 in QFrame::event(QEvent*) () from /lib64/libQt6Widgets.so.6
#8  0x00007fffec9c2f1e in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#9  0x00007fffeb78f030 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#10 0x00007fffeca0985c in QWidgetPrivate::hide_helper() () from /lib64/libQt6Widgets.so.6
#11 0x00007fffeca0b2aa in QWidgetPrivate::setVisible(bool) () from /lib64/libQt6Widgets.so.6
#12 0x0000555555610aa3 in ?? ()
#13 0x000055555559da4e in ?? ()
#14 0x00007fffeae2a1f0 in __libc_start_call_main () from /lib64/libc.so.6
#15 0x00007fffeae2a2b9 in __libc_start_main_impl () from /lib64/libc.so.6
#16 0x000055555559df05 in ?? ()

Comment 3 Christophe Marin 2024-05-11 14:54:27 UTC


*** This bug has been marked as a duplicate of bug 485691 ***