Bug 417436

Summary:	After applying Neon update today (11/02/2020) plasma crashes
Product:	[Plasma] plasmashell	Reporter:	Stephen Burton <sjburton74>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED UPSTREAM
Severity:	crash	CC:	plasma-bugs
Priority:	NOR	Keywords:	drkonqi
Version:	5.18.0
Target Milestone:	1.0
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Stephen Burton 2020-02-11 17:15:40 UTC

Application: plasmashell (5.18.0)

Qt Version: 5.13.2
Frameworks Version: 5.67.0
Operating System: Linux 5.3.0-28-generic x86_64
Windowing system: X11
Distribution: KDE neon User Edition 5.18

-- Information about the crash:
- What I was doing when the application crashed:
I had applied updates using discover today, since then plasma crashes each time i log in, I have rebooted and the problem persists
- Unusual behavior I noticed:
No background on desktop, slowness, no widgets or panels displayed
- Custom settings of the application:
I have several panels and widgets therein but all has funtioned satisfactorily until today

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3f26170800 (LWP 2109))]

Thread 15 (Thread 0x7f3e9ffff700 (LWP 2911)):
#0  0x00007f3f1cca99f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c3362aabc4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3f1cca99f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c3362aab70, cond=0x55c3362aab98) at pthread_cond_wait.c:502
#2  0x00007f3f1cca99f3 in __pthread_cond_wait (cond=0x55c3362aab98, mutex=0x55c3362aab70) at pthread_cond_wait.c:655
#3  0x00007f3f1fd7faeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3f1fd7fdf9 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3f23d88ec8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3f23d892fa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3f1fd78b52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3f1cca36db in start_thread (arg=0x7f3e9ffff700) at pthread_create.c:463
#9  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f3eacdbb700 (LWP 2909)):
#0  0x00007f3f1cca99f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c3362a8884) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3f1cca99f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c3362a8830, cond=0x55c3362a8858) at pthread_cond_wait.c:502
#2  0x00007f3f1cca99f3 in __pthread_cond_wait (cond=0x55c3362a8858, mutex=0x55c3362a8830) at pthread_cond_wait.c:655
#3  0x00007f3f1fd7faeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3f1fd7fdf9 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3f23d88ec8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3f23d892fa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3f1fd78b52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3f1cca36db in start_thread (arg=0x7f3eacdbb700) at pthread_create.c:463
#9  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f3ead7d4700 (LWP 2906)):
#0  0x00007f3f1cca99f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c336135d14) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3f1cca99f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c336135cc0, cond=0x55c336135ce8) at pthread_cond_wait.c:502
#2  0x00007f3f1cca99f3 in __pthread_cond_wait (cond=0x55c336135ce8, mutex=0x55c336135cc0) at pthread_cond_wait.c:655
#3  0x00007f3f1fd7faeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3f1fd7fdf9 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3f23d88ec8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3f23d892fa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3f1fd78b52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3f1cca36db in start_thread (arg=0x7f3ead7d4700) at pthread_create.c:463
#9  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f3eae262700 (LWP 2903)):
#0  0x00007f3f1cca99f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c335facec4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3f1cca99f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c335face70, cond=0x55c335face98) at pthread_cond_wait.c:502
#2  0x00007f3f1cca99f3 in __pthread_cond_wait (cond=0x55c335face98, mutex=0x55c335face70) at pthread_cond_wait.c:655
#3  0x00007f3f1fd7faeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3f1fd7fdf9 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3f23d88ec8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3f23d892fa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3f1fd78b52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3f1cca36db in start_thread (arg=0x7f3eae262700) at pthread_create.c:463
#9  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f3eb9fd9700 (LWP 2891)):
#0  0x00007f3f19a15f08 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3f19a16570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3f19a166dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3f1ffbbacb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3f1ff5bf9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3f1fd773aa in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3eb12cb407 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f3f1fd78b52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3f1cca36db in start_thread (arg=0x7f3eb9fd9700) at pthread_create.c:463
#9  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f3ee1acf700 (LWP 2508)):
#0  0x00007f3f1f668bf9 in __GI___poll (fds=0x7f3ecc006920, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3f19a165c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3f19a166dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3f1ffbbacb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3f1ff5bf9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3f1fd773aa in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3f23d02ac6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3f1fd78b52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3f1cca36db in start_thread (arg=0x7f3ee1acf700) at pthread_create.c:463
#9  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f3ee23d0700 (LWP 2497)):
#0  0x00007f3f1cca99f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c3335abec4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3f1cca99f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c3335abe70, cond=0x55c3335abe98) at pthread_cond_wait.c:502
#2  0x00007f3f1cca99f3 in __pthread_cond_wait (cond=0x55c3335abe98, mutex=0x55c3335abe70) at pthread_cond_wait.c:655
#3  0x00007f3f1fd7faeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3f1fd7fdf9 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3f23d88ec8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3f23d892fa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3f1fd78b52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3f1cca36db in start_thread (arg=0x7f3ee23d0700) at pthread_create.c:463
#9  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f3ee2cd1700 (LWP 2493)):
#0  0x00007f3f1cca99f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c333517854) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3f1cca99f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c333517800, cond=0x55c333517828) at pthread_cond_wait.c:502
#2  0x00007f3f1cca99f3 in __pthread_cond_wait (cond=0x55c333517828, mutex=0x55c333517800) at pthread_cond_wait.c:655
#3  0x00007f3f1fd7faeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3f1fd7fdf9 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3f23d88ec8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3f23d892fa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3f1fd78b52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3f1cca36db in start_thread (arg=0x7f3ee2cd1700) at pthread_create.c:463
#9  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f3ee35d2700 (LWP 2488)):
#0  0x00007f3f1cca99f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c333491e70) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3f1cca99f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c333491e20, cond=0x55c333491e48) at pthread_cond_wait.c:502
#2  0x00007f3f1cca99f3 in __pthread_cond_wait (cond=0x55c333491e48, mutex=0x55c333491e20) at pthread_cond_wait.c:655
#3  0x00007f3f1fd7faeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3f1fd7fdf9 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3f23d88ec8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3f23d892fa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3f1fd78b52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3f1cca36db in start_thread (arg=0x7f3ee35d2700) at pthread_create.c:463
#9  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f3ef4f89700 (LWP 2376)):
#0  0x00007f3f1cca99f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c332e8a7c8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3f1cca99f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c332e8a778, cond=0x55c332e8a7a0) at pthread_cond_wait.c:502
#2  0x00007f3f1cca99f3 in __pthread_cond_wait (cond=0x55c332e8a7a0, mutex=0x55c332e8a778) at pthread_cond_wait.c:655
#3  0x00007f3efb0d385b in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#4  0x00007f3efb0d3457 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#5  0x00007f3f1cca36db in start_thread (arg=0x7f3ef4f89700) at pthread_create.c:463
#6  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f3ef5fcc700 (LWP 2375)):
#0  0x00007f3f1cca99f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c332f7e9a0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3f1cca99f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c332f7e950, cond=0x55c332f7e978) at pthread_cond_wait.c:502
#2  0x00007f3f1cca99f3 in __pthread_cond_wait (cond=0x55c332f7e978, mutex=0x55c332f7e950) at pthread_cond_wait.c:655
#3  0x00007f3efb0d385b in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#4  0x00007f3efb0d3457 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#5  0x00007f3f1cca36db in start_thread (arg=0x7f3ef5fcc700) at pthread_create.c:463
#6  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f3f08e33700 (LWP 2224)):
#0  0x00007f3f1f668bf9 in __GI___poll (fds=0x7f3efc004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3f19a165c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3f19a166dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3f1ffbbacb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3f1ff5bf9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3f1fd773aa in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3f23830815 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f3f1fd78b52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3f1cca36db in start_thread (arg=0x7f3f08e33700) at pthread_create.c:463
#9  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f3f0aebd700 (LWP 2132)):
#0  0x00007f3f1f668bf9 in __GI___poll (fds=0x7f3f04004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3f19a165c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3f19a166dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3f1ffbbacb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3f1ff5bf9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3f1fd773aa in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3f21b770e5 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f3f1fd78b52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3f1cca36db in start_thread (arg=0x7f3f0aebd700) at pthread_create.c:463
#9  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f3f11159700 (LWP 2124)):
#0  0x00007f3f1f668bf9 in __GI___poll (fds=0x7f3f11158ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3f24961747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f3f2496336a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f3f13b2ae10 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f3f1fd78b52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3f1cca36db in start_thread (arg=0x7f3f11159700) at pthread_create.c:463
#6  0x00007f3f1f67588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f3f26170800 (LWP 2109)):
[KCrash Handler]
#6  0x00007f3f17107b2a in FT_Get_PS_Font_Info () at /usr/lib/x86_64-linux-gnu/libfreetype.so.6
#7  0x00007f3f13b96edd in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#8  0x00007f3f13b9c3a0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#9  0x00007f3f13ba0c1d in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#10 0x00007f3f2060e313 in  () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#11 0x00007f3f20610aac in QFontDatabase::findFont(QFontDef const&, int) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#12 0x00007f3f205fb1ff in QFontEngineMulti::loadEngine(int) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007f3f205fb6fd in QFontEngineMulti::ensureEngineAt(int) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#14 0x00007f3f205fbcef in QFontEngineMulti::stringToCMap(QChar const*, int, QGlyphLayout*, int*, QFlags<QFontEngine::ShaperFlag>) const () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#15 0x00007f3f2061d2e9 in QTextEngine::shapeText(int) const () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#16 0x00007f3f2061df69 in QTextEngine::shape(int) const () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#17 0x00007f3f20630e37 in QTextLine::layout_helper(int) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007f3f20631e2d in QTextLine::setLineWidth(double) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007f3f23e25d8e in QQuickTextPrivate::setLineGeometry(QTextLine&, double, double&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f3f23e26bce in QQuickTextPrivate::setupTextLayout(double*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f3f23e2905c in QQuickTextPrivate::updateSize() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f3f23e29fdf in QQuickTextPrivate::updateLayout() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007f3f23e2a83f in QQuickText::setText(QString const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#24 0x00007f3f23e2c7b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#25 0x00007f3f2380983f in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#26 0x00007f3f23809f77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#27 0x00007f3f23806543 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#28 0x00007f3f237dfc42 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#29 0x00007f3f23786f99 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#30 0x00007f3f1ff8e027 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f3f23782dc0 in QQmlVMEMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#32 0x00007f3f1ff6cbc5 in QMetaProperty::write(QObject*, QVariant const&) const () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f3f1ff96cf0 in QObject::setProperty(char const*, QVariant const&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f3ef40ed04a in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/core/libcorebindingsplugin.so
#35 0x00007f3f1ff8e91f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007f3f1ff9b537 in QTimer::timeout(QTimer::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007f3f1ff9b898 in QTimer::timerEvent(QTimerEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007f3f1ff8f31b in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f3f211b6eac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#40 0x00007f3f211be4b0 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#41 0x00007f3f1ff5de38 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#42 0x00007f3f1ffbaf39 in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x00007f3f1ffbb701 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007f3f19a16417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f3f19a16650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f3f19a166dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f3f1ffbbaaf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x00007f3f1ff5bf9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007f3f1ff65310 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#50 0x000055c331c66894 in  ()
#51 0x00007f3f1f575b97 in __libc_start_main (main=0x55c331c65a70, argc=1, argv=0x7ffcab146498, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcab146488) at ../csu/libc-start.c:310
#52 0x000055c331c669fa in _start ()

Possible duplicates by query: bug 275848, bug 233048.

Reported using DrKonqi

Comment 1 Stephen Burton 2020-02-11 19:53:45 UTC

OK, I may have over-reacted slightly, this was annoying me so I had a bit of a go at fixing it. I notice that the problem happened only when one particular panel was unhidden by a mouse hover, so I dragged all the widgets on it to the desktop, deleted the now blank panel, created a new panel and dragged all the widgets back on and put it back where the old one was.

It now (fingers crossed) seems to be OK!

Comment 2 Christoph Feck 2020-03-06 14:28:07 UTC

Crashes either in libfreetype or Qt.