Bug 399017

Summary:	[Wayland] Restore from systray makes Kmail freeze
Product:	[Applications] kmail2	Reporter:	tromzy
Component:	general	Assignee:	kdepim bugs <kdepim-bugs>
Status:	RESOLVED FIXED
Severity:	normal	CC:	notuxius
Priority:	NOR	Keywords:	wayland
Version:	5.9.1
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description tromzy 2018-09-24 13:52:03 UTC

On Plasma 5.14 beta, in the Wayland session, I can minimize Kmail to the systray when I click the "Close" icon in the window decoration. But then I cannot restore it when I get an email : the window appears totally frozen and the only way to make it start again is to stop akonadi and kill Kmail.


STEPS TO REPRODUCE
1. Start a Plasma Wayland session, start Kmail
2. Minimize Kmail
3. Restore Kmail

EXPECTED RESULT
Kmail should restore

ACTUAL RESULT
The Kmail window is displayed but it is completely frozen

SOFTWARE VERSIONS
(available in About System)
KDE Plasma Version: Plasma 5.13.90
KDE Frameworks Version: 5.50
Qt Version: 5.11.2

ADDITIONAL INFORMATION

Comment 1 Alexander Mentyu 2018-09-28 19:16:18 UTC

Can reproduce, backtrace upon restoring from systray:

Plasma 5.13.5
Apps 18.08.1
Frameworks 5.50.0
Qt 5.11.2

gdb kmail
GNU gdb (GDB) 8.2
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
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Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from kmail...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/kmail 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Using Wayland-EGL
[New Thread 0x7fffd82a9700 (LWP 3566)]
[New Thread 0x7fffd6667700 (LWP 3567)]
[New Thread 0x7fffd5456700 (LWP 3568)]
[New Thread 0x7fffd4bda700 (LWP 3569)]
[Detaching after fork from child process 3570]
[New Thread 0x7fffc7fff700 (LWP 3572)]
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
org.kde.pim.akonadiserver: Failed to use database "akonadi"
org.kde.pim.akonadiserver: Database error: "Can't connect to local MySQL server through socket '/run/mysqld/mysqld.sock' (2 \"No such file or directory\") QMYSQL: Unable to connect"
org.kde.pim.akonadiserver: Failed to connect to database!
org.kde.pim.akonadiserver: Database error: "Can't connect to local MySQL server through socket '/run/mysqld/mysqld.sock' (2 \"No such file or directory\") QMYSQL: Unable to connect"
org.kde.pim.akonadiserver: Failed to remove runtime connection config file
org.kde.pim.akonadicontrol: Application 'akonadiserver' exited normally...
org.kde.pim.kidentitymanagement: IdentityManager: There was no default identity. Marking first one as default.
[New Thread 0x7fffc77fe700 (LWP 3586)]
Error loading text-to-speech plug-in "speechd"
WebEngine compiled with X11 support, however qpa backend is not xcb. This may fail.
[0928/221215.411282:WARNING:stack_trace_posix.cc(699)] Failed to open file: /home/not/#4724012 (deleted)
  Error: No such file or directory
[New Thread 0x7fffc651f700 (LWP 3587)]
[Detaching after fork from child process 3588]
[New Thread 0x7fffc5d1e700 (LWP 3589)]
[New Thread 0x7fffc551d700 (LWP 3590)]
[New Thread 0x7fffc4d1c700 (LWP 3591)]
[New Thread 0x7fffabfff700 (LWP 3592)]
[New Thread 0x7fffab7fe700 (LWP 3593)]
[New Thread 0x7fffaaffd700 (LWP 3594)]
[New Thread 0x7fffaa7fc700 (LWP 3595)]
[New Thread 0x7fffa9ffb700 (LWP 3596)]
[New Thread 0x7fffa97fa700 (LWP 3597)]
[New Thread 0x7fffa8ff9700 (LWP 3598)]
[New Thread 0x7fff8bfff700 (LWP 3599)]
[New Thread 0x7fff8b7fe700 (LWP 3600)]
[New Thread 0x7fff8affd700 (LWP 3601)]
[New Thread 0x7fff8a7fc700 (LWP 3602)]
[New Thread 0x7fff89ffb700 (LWP 3603)]
[New Thread 0x7fff897fa700 (LWP 3604)]
[New Thread 0x7fff88ff9700 (LWP 3605)]
[New Thread 0x7fff67fff700 (LWP 3606)]
[New Thread 0x7fff677fe700 (LWP 3607)]
[New Thread 0x7fff66ffd700 (LWP 3608)]
[New Thread 0x7fff667fc700 (LWP 3609)]
Using the 'xdg-shell-v6' shell integration
org.kde.pim.akonadicore: Job error:  "" for collection: QVector() 

org.kde.pim.akonadicore: Job error:  "" for collection: QVector() 

org.kde.pim.messagelist: Failed to load tags  ""
org.kde.pim.kmail: ""
org.kde.pim.kmail: ""
[New Thread 0x7fff65ffb700 (LWP 3625)]
[Thread 0x7fff65ffb700 (LWP 3625) exited]
[New Thread 0x7fff65ffb700 (LWP 3626)]
[New Thread 0x7fff657fa700 (LWP 3629)]
error marshalling arguments for get_subsurface (signature noo): null value passed for arg 2
Error marshalling request: Invalid argument

Thread 1 "kmail" received signal SIGABRT, Aborted.
0x00007ffff66e3d7f in raise () from /usr/lib/libc.so.6
(gdb) thread apply all bt

Thread 32 (Thread 0x7fff657fa700 (LWP 3629)):
#0  0x00007ffff3c61ef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007ffff6ac35fd in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQt5Core.so.5
#2  0x00007ffff6abb024 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007ffff6ac2f65 in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 31 (Thread 0x7fff65ffb700 (LWP 3626)):
#0  0x00007ffff3c61ef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92b17 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947ea in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf948d2 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf99691 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9a98f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 29 (Thread 0x7fff667fc700 (LWP 3609)):
#0  0x00007ffff679cbb1 in poll () from /usr/lib/libc.so.6
#1  0x00007fffe6f98673 in ?? () from /usr/lib/libpulse.so.0
#2  0x00007fffe6f89990 in pa_mainloop_poll () from /usr/lib/libpulse.so.0
#3  0x00007fffe6f89fe0 in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#4  0x00007fffe6f8a091 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#5  0x00007fffe6f985ae in ?? () from /usr/lib/libpulse.so.0
#6  0x00007fffe14159fc in ?? () from /usr/lib/pulseaudio/libpulsecommon-12.2.so
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 28 (Thread 0x7fff66ffd700 (LWP 3608)):
--Type <RET> for more, q to quit, c to continue without paging--c
#0  0x00007ffff67a7d77 in epoll_wait () from /usr/lib/libc.so.6
#1  0x00007fffe6157a95 in ?? () from /usr/lib/libevent-2.1.so.6
#2  0x00007fffe614d8f4 in event_base_loop () from /usr/lib/libevent-2.1.so.6
#3  0x00007fffecf6758d in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf8678b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecfa9554 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 27 (Thread 0x7fff677fe700 (LWP 3607)):
#0  0x00007ffff3c61ef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92b17 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947ea in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf61030 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf8678b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecfa9554 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 26 (Thread 0x7fff67fff700 (LWP 3606)):
#0  0x00007ffff3c61ef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92b17 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947ea in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf61030 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf8678b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecfa9554 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 25 (Thread 0x7fff88ff9700 (LWP 3605)):
#0  0x00007ffff3c61afc in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92a49 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffed8ea088 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecfac0c6 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 24 (Thread 0x7fff897fa700 (LWP 3604)):
#0  0x00007ffff3c61afc in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92a49 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947f8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf9488f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf996a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9ab71 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 23 (Thread 0x7fff89ffb700 (LWP 3603)):
#0  0x00007ffff67a7d77 in epoll_wait () from /usr/lib/libc.so.6
#1  0x00007fffe6157a95 in ?? () from /usr/lib/libevent-2.1.so.6
#2  0x00007fffe614d8f4 in event_base_loop () from /usr/lib/libevent-2.1.so.6
#3  0x00007fffecf67674 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf8678b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffec09c2fa in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffec09c7a7 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fffecfa9688 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#9  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 22 (Thread 0x7fff8a7fc700 (LWP 3602)):
#0  0x00007ffff3c61afc in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92a49 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947f8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf9488f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf996a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9a98f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 21 (Thread 0x7fff8affd700 (LWP 3601)):
#0  0x00007ffff3c61afc in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92a49 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947f8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf9488f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf996a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9ab71 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 20 (Thread 0x7fff8b7fe700 (LWP 3600)):
#0  0x00007ffff3c61afc in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92a49 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947f8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf9488f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf996a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9a98f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 19 (Thread 0x7fff8bfff700 (LWP 3599)):
#0  0x00007ffff3c61afc in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92a49 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947f8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf9488f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf996a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9a98f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 18 (Thread 0x7fffa8ff9700 (LWP 3598)):
#0  0x00007ffff3c61afc in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92a49 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947f8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf9488f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf996a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9a98f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 17 (Thread 0x7fffa97fa700 (LWP 3597)):
#0  0x00007ffff3c61ef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92b17 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947ea in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf948d2 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf99691 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9a98f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 16 (Thread 0x7fffa9ffb700 (LWP 3596)):
#0  0x00007ffff3c61ef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92b17 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947ea in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf948d2 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf99691 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9ab71 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 15 (Thread 0x7fffaa7fc700 (LWP 3595)):
#0  0x00007ffff3c61ef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92b17 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947ea in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf948d2 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf99691 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9ab71 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 14 (Thread 0x7fffaaffd700 (LWP 3594)):
#0  0x00007ffff3c61ef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92b17 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947ea in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf948d2 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf99691 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9ab71 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 13 (Thread 0x7fffab7fe700 (LWP 3593)):
#0  0x00007ffff3c61ef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92b17 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947ea in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf948d2 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf99691 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9a98f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 12 (Thread 0x7fffabfff700 (LWP 3592)):
#0  0x00007ffff3c61ef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffecf92b17 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf947ea in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf948d2 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf99691 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf9a98f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 11 (Thread 0x7fffc4d1c700 (LWP 3591)):
#0  0x00007ffff67a7d77 in epoll_wait () from /usr/lib/libc.so.6
#1  0x00007fffe6157a95 in ?? () from /usr/lib/libevent-2.1.so.6
#2  0x00007fffe614d8f4 in event_base_loop () from /usr/lib/libevent-2.1.so.6
#3  0x00007fffecf6758d in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf8678b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecfa9554 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 10 (Thread 0x7fffc551d700 (LWP 3590)):
#0  0x00007ffff679f3af in select () from /usr/lib/libc.so.6
#1  0x00007fffecf49d1f in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecf43698 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecf63efa in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf649af in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecf64b2a in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecf60fd1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fffecf8678b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fffecfa9554 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#9  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#10 0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7fffc5d1e700 (LWP 3589)):
#0  0x00007ffff67a7d77 in epoll_wait () from /usr/lib/libc.so.6
#1  0x00007fffe6157a95 in ?? () from /usr/lib/libevent-2.1.so.6
#2  0x00007fffe614d8f4 in event_base_loop () from /usr/lib/libevent-2.1.so.6
#3  0x00007fffecf6758d in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fffecf8678b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fffecfa9554 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7fffc651f700 (LWP 3587)):
#0  0x00007ffff679cbb1 in poll () from /usr/lib/libc.so.6
#1  0x00007fffec3cf4b2 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fffecfac0c6 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fffecfa4fa1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fffc77fe700 (LWP 3586)):
#0  0x00007ffff679cbb1 in poll () from /usr/lib/libc.so.6
#1  0x00007ffff30c1ee0 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff30c1fce in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff6cc3fc9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff6c6f8cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007ffff6ab8eb9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff6ac2f65 in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7fffc7fff700 (LWP 3572)):
#0  0x00007ffff679cbb1 in poll () from /usr/lib/libc.so.6
#1  0x00007ffff30c1ee0 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff30c1fce in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff6cc3fc9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff6c6f8cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007ffff6ab8eb9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff6ac2f65 in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fffd4bda700 (LWP 3569)):
#0  0x00007ffff679cbb1 in poll () from /usr/lib/libc.so.6
#1  0x00007ffff30c1ee0 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff30c1fce in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff6cc3fc9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff6c6f8cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007ffff6ab8eb9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff6ac2f65 in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fffd5456700 (LWP 3568)):
#0  0x00007ffff679cbb1 in poll () from /usr/lib/libc.so.6
#1  0x00007ffff30c1ee0 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff30c1fce in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff6cc3fc9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff6c6f8cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007ffff6ab8eb9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff6ac2f65 in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fffd6667700 (LWP 3567)):
#0  0x00007ffff679cbb1 in poll () from /usr/lib/libc.so.6
#1  0x00007ffff30c1ee0 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff30c1fce in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff6cc3fc9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff6c6f8cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007ffff6ab8eb9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff62d6ba6 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007ffff6ac2f65 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7fffd82a9700 (LWP 3566)):
#0  0x00007ffff3c61afc in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fffd888817c in ?? () from /usr/lib/dri/i965_dri.so
#2  0x00007fffd8887eb8 in ?? () from /usr/lib/dri/i965_dri.so
#3  0x00007ffff3c5ba9d in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007ffff67a7a43 in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7fffdac60b00 (LWP 3561)):
#0  0x00007ffff66e3d7f in raise () from /usr/lib/libc.so.6
#1  0x00007ffff66ce672 in abort () from /usr/lib/libc.so.6
#2  0x00007ffff7fc1f50 in ?? () from /usr/lib/libwayland-client.so.0
#3  0x00007ffff7fbdcd0 in wl_proxy_marshal_array_constructor_versioned () from /usr/lib/libwayland-client.so.0
#4  0x00007ffff7fbdf0c in wl_proxy_marshal_constructor () from /usr/lib/libwayland-client.so.0
#5  0x00007fffda5cee31 in QtWaylandClient::QWaylandWindow::initWindow() () from /usr/lib/libQt5WaylandClient.so.5
#6  0x00007fffda5cf4ac in QtWaylandClient::QWaylandWindow::setVisible(bool) () from /usr/lib/libQt5WaylandClient.so.5
#7  0x00007fffda6a8ad5 in ?? () from /usr/lib/qt/plugins/wayland-graphics-integration-client/libqt-plugin-wayland-egl.so
#8  0x00007ffff70255ec in QWindowPrivate::setVisible(bool) () from /usr/lib/libQt5Gui.so.5
#9  0x00007ffff761b8f9 in QWidgetPrivate::show_sys() () from /usr/lib/libQt5Widgets.so.5
#10 0x00007ffff7624ee6 in QWidgetPrivate::show_helper() () from /usr/lib/libQt5Widgets.so.5
#11 0x00007ffff76281d5 in QWidget::setVisible(bool) () from /usr/lib/libQt5Widgets.so.5
#12 0x00007ffff4da5c69 in ?? () from /usr/lib/libKF5AkonadiWidgets.so.5
#13 0x00007ffff4da7442 in ?? () from /usr/lib/libKF5AkonadiWidgets.so.5
#14 0x00007ffff6c7094b in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#15 0x00007ffff75e8e04 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#16 0x00007ffff75f06e1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#17 0x00007ffff6c70c39 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#18 0x00007ffff7624edd in QWidgetPrivate::show_helper() () from /usr/lib/libQt5Widgets.so.5
#19 0x00007ffff7624e34 in QWidgetPrivate::showChildren(bool) () from /usr/lib/libQt5Widgets.so.5
#20 0x00007ffff7624eb2 in QWidgetPrivate::show_helper() () from /usr/lib/libQt5Widgets.so.5
#21 0x00007ffff76281d5 in QWidget::setVisible(bool) () from /usr/lib/libQt5Widgets.so.5
#22 0x00007ffff5f778b0 in ?? () from /usr/lib/libKF5Notifications.so.5
#23 0x00007ffff5f784c8 in ?? () from /usr/lib/libKF5Notifications.so.5
#24 0x00007ffff5f78666 in KStatusNotifierItem::activate(QPoint const&) () from /usr/lib/libKF5Notifications.so.5
#25 0x00007ffff5f7fa2f in ?? () from /usr/lib/libKF5Notifications.so.5
#26 0x00007ffff5f9c2ca in ?? () from /usr/lib/libKF5Notifications.so.5
#27 0x00007ffff5f9c943 in ?? () from /usr/lib/libKF5Notifications.so.5
#28 0x00007ffff62e29ef in ?? () from /usr/lib/libQt5DBus.so.5
#29 0x00007ffff62e7379 in ?? () from /usr/lib/libQt5DBus.so.5
#30 0x00007ffff62e79e1 in ?? () from /usr/lib/libQt5DBus.so.5
#31 0x00007ffff62ea14e in ?? () from /usr/lib/libQt5DBus.so.5
#32 0x00007ffff6c9b352 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#33 0x00007ffff75e8e14 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#34 0x00007ffff75f06e1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#35 0x00007ffff6c70c39 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#36 0x00007ffff6c73ccc in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#37 0x00007ffff6cc49d4 in ?? () from /usr/lib/libQt5Core.so.5
#38 0x00007ffff30c03cf in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#39 0x00007ffff30c1f89 in ?? () from /usr/lib/libglib-2.0.so.0
#40 0x00007ffff30c1fce in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#41 0x00007ffff6cc3fc9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#42 0x00007fffda6025f2 in ?? () from /usr/lib/libQt5WaylandClient.so.5
#43 0x00007ffff6c6f8cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#44 0x00007ffff6c77bc6 in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#45 0x0000555555557f60 in ?? ()
#46 0x00007ffff66d0223 in __libc_start_main () from /usr/lib/libc.so.6
#47 0x000055555555811e in _start ()

Comment 2 tromzy 2018-10-23 12:03:38 UTC

The bug stopped happening on my end (but it has been "replaced" by another one : https://bugs.kde.org/show_bug.cgi?id=397825 ).