Application: okular (21.08.1)

Qt Version: 5.15.2
Frameworks Version: 5.86.0
Operating System: Linux 5.13.0-27-generic x86_64
Windowing System: X11
Drkonqi Version: 5.22.5
Distribution: Ubuntu 21.10

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

I  am having problems with the printers on my computer, where it crashes when trying to do something related with them.

e.g.: 
* libreoffice crashes on startup, I have to disable cups previously every time
* when trying to open the "Print" dialog on Okular, I also get a crash.
* `lpstat -p -d` crashes with the following error:

"dbus[794440]: arguments to dbus_message_iter_append_basic() were incorrect, assertion "_dbus_check_is_valid_utf8 (*string_p)" failed in file ../../../dbus/dbus-message.c line 2760.
This is normally a bug in some application using the D-Bus library.

  D-Bus not built with -rdynamic so unable to print a backtrace
[1]    794440 IOT instruction (core dumped)  lpstat -p -d"

This is the same type of crash info that I get from okular and libreoffice.

The crash can be reproduced every time.

-- Backtrace:
Application: Okular (okular), signal: Aborted

[KCrash Handler]
#4  __pthread_kill_implementation (no_tid=0, signo=6, threadid=139952731393600) at pthread_kill.c:44
#5  __pthread_kill_internal (signo=6, threadid=139952731393600) at pthread_kill.c:80
#6  __GI___pthread_kill (threadid=139952731393600, signo=signo@entry=6) at pthread_kill.c:91
#7  0x00007f494caaa476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#8  0x00007f494ca907b7 in __GI_abort () at abort.c:79
#9  0x00007f494bf52ed6 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#10 0x00007f494bf79620 in _dbus_warn_check_failed () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#11 0x00007f494bf688af in dbus_message_iter_append_basic () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#12 0x00007f494bf69d86 in dbus_message_append_args_valist () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#13 0x00007f494bf69fdd in dbus_message_append_args () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#14 0x00007f493c08c23a in avahi_record_browser_new () from /lib/x86_64-linux-gnu/libavahi-client.so.3
#15 0x00007f4930452d41 in ?? () from /lib/x86_64-linux-gnu/libcups.so.2
#16 0x00007f4930402591 in cupsGetDests2 () from /lib/x86_64-linux-gnu/libcups.so.2
#17 0x00007f493c37e235 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/printsupport/libcupsprintersupport.so
#18 0x00007f493c37e3d2 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/printsupport/libcupsprintersupport.so
#19 0x00007f494c3478e7 in QPrinterInfo::defaultPrinter() () from /lib/x86_64-linux-gnu/libQt5PrintSupport.so.5
#20 0x00007f494c342b1d in QPrinterPrivate::findValidPrinter(QPrinterInfo const&) () from /lib/x86_64-linux-gnu/libQt5PrintSupport.so.5
#21 0x00007f494c344c16 in QPrinterPrivate::initEngines(QPrinter::OutputFormat, QPrinterInfo const&) () from /lib/x86_64-linux-gnu/libQt5PrintSupport.so.5
#22 0x00007f494c345042 in QPrinter::QPrinter(QPrinter::PrinterMode) () from /lib/x86_64-linux-gnu/libQt5PrintSupport.so.5
#23 0x00007f4945622e67 in Okular::Part::slotPrint() () from /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so
#24 0x00007f494d16958b in QMetaMethod::invoke(QObject*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f494d16e456 in QMetaObject::invokeMethod(QObject*, char const*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x000055bba36a2492 in ?? ()
#27 0x00007f494d195a88 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f494dcd7b86 in QAction::triggered(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f494dcda89c in QAction::activate(QAction::ActionEvent) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f494dcdb487 in QAction::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f494dcde6b3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007f494d15e16a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f494d607054 in QShortcutMap::dispatchEvent(QKeyEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#34 0x00007f494d607a03 in QShortcutMap::tryShortcut(QKeyEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#35 0x00007f494d5afec2 in QWindowSystemInterface::handleShortcutEvent(QWindow*, unsigned long, int, QFlags<Qt::KeyboardModifier>, unsigned int, unsigned int, unsigned int, QString const&, bool, unsigned short) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#36 0x00007f494d5d332f in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#37 0x00007f49484790b4 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforminputcontexts/libibusplatforminputcontextplugin.so
#38 0x00007f494d195a53 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f494d473e23 in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#40 0x00007f494d18b73e in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007f494dcde6b3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#42 0x00007f494d15e16a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x00007f494d161257 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007f494d1b7ef7 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#45 0x00007f494b8078bb in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f494b85af08 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f494b805003 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f494d1b7548 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007f494d15ca9b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#50 0x00007f494d165024 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#51 0x000055bba369dc4a in ?? ()
#52 0x00007f494ca91fd0 in __libc_start_call_main (main=main@entry=0x55bba369c700, argc=argc@entry=2, argv=argv@entry=0x7fff41111b08) at ../sysdeps/nptl/libc_start_call_main.h:58
#53 0x00007f494ca9207d in __libc_start_main_impl (main=0x55bba369c700, argc=2, argv=0x7fff41111b08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff41111af8) at ../csu/libc-start.c:409
#54 0x000055bba369e665 in ?? ()
[Inferior 1 (process 794686) detached]

Possible duplicates by query: bug 447519, bug 445746, bug 445496, bug 445355.

Reported using DrKonqi