https://bugs.kde.org/show_bug.cgi?id=433366
Bug ID: 433366
Summary: Crash upon using systemd plasma-plasmashell service
Product: plasmashell
Version: 5.21.0
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: generic-crash
Assignee: plasma-b...@kde.org
Reporter: physk...@tutanota.com
Target Milestone: 1.0
Created attachment 135998
--> https://bugs.kde.org/attachment.cgi?id=135998&action=edit
Journal entry of the plasma-plasmashell user service
SUMMARY
Plasmashell as well as drkonqi crash to a blank, black screen, when the systemd
service is used.
STEPS TO REPRODUCE
1. Enable service with: `kwriteconfig5 --file startkderc --group General --key
systemdBoot true`
2. Login to a Wayland session via SDDM
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.21.0
KDE Frameworks Version: 5.79.0
Qt Version: 5.15.2
Kernel Version: 5.10.16-arch1-1
OS Type: 64-bit
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 PRO 4750U with Radeon Graphics
Memory: 14.9 GiB of RAM
Graphics Processor: AMD RENOIR
ADDITIONAL INFORMATION
```
Upon setting `KDE_DBUG=1`, the cordump is available, and after filtering, the
stacktrace of the plasmashell crash looks like this:
PID: 968 (plasmashell)
UID: 1000 (username)
GID: 1000 (username)
Signal: 11 (SEGV)
Timestamp: Sun 2021-02-21 12:02:58 IST (11min ago)
Command Line: /usr/bin/plasmashell --no-respawn
Executable: /usr/bin/plasmashell
Control Group:
/user.slice/user-1000.slice/user@1000.service/session.slice/plasma-plasmashell.service
Unit: user@1000.service
User Unit: plasma-plasmashell.service
Slice: user-1000.slice
Owner UID: 1000 (username)
Boot ID: 0248037dc61d438daf132a8e7ad2ea5c
Machine ID: 89025bd2327742a98f1b9c991e2606e4
Hostname: hostname
Storage:
/var/lib/systemd/coredump/core.plasmashell.1000.0248037dc61d438daf132a8e7ad2ea5c.968.1613889178000000.zst
Message: Process 968 (plasmashell) of user 1000 dumped core.
Stack trace of thread 968:
#0 0x00007f53f26d1a52 QScreen::name() const (libQt5Gui.so.5 +
0x163a52)
#1 0x00005568688dd570 n/a (plasmashell + 0x40570)
#2 0x00005568688e5f1b n/a (plasmashell + 0x48f1b)
#3 0x00007f53f2305d86 n/a (libQt5Core.so.5 + 0x2ecd86)
#4 0x00007f53f4371842
KActivities::Consumer::serviceStatusChanged(KActivities::Consumer::ServiceStatus)
(libKF5Activities.so.5 + 0xc842)
#5 0x00007f53f2305dc0 n/a (libQt5Core.so.5 + 0x2ecdc0)
#6 0x00007f53f43717e2 n/a (libKF5Activities.so.5 + 0xc7e2)
#7 0x00007f53f4384216 n/a (libKF5Activities.so.5 + 0x1f216)
#8 0x00007f53f4383c5b n/a (libKF5Activities.so.5 + 0x1ec5b)
#9 0x00007f53f2305dc0 n/a (libQt5Core.so.5 + 0x2ecdc0)
#10 0x00007f53f2ca09e0
QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) (libQt5DBus.so.5 +
0x649e0)
#11 0x00007f53f22fb532 QObject::event(QEvent*) (libQt5Core.so.5
+ 0x2e2532)
#12 0x00007f53f2f6d752
QApplicationPrivate::notify_helper(QObject*, QEvent*) (libQt5Widgets.so.5 +
0x15a752)
#13 0x00007f53f22cea2a
QCoreApplication::notifyInternal2(QObject*, QEvent*) (libQt5Core.so.5 +
0x2b5a2a)
#14 0x00007f53f22d1523
QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*)
(libQt5Core.so.5 + 0x2b8523)
#15 0x00007f53f2328054 n/a (libQt5Core.so.5 + 0x30f054)
#16 0x00007f53f06b0b84 g_main_context_dispatch
(libglib-2.0.so.0 + 0x53b84)
#17 0x00007f53f0704c21 n/a (libglib-2.0.so.0 + 0xa7c21)
#18 0x00007f53f06af3b1 g_main_context_iteration
(libglib-2.0.so.0 + 0x523b1)
#19 0x00007f53f2327691
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(libQt5Core.so.5 + 0x30e691)
#20 0x00007f53f22cd3ac
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (libQt5Core.so.5 +
0x2b43ac)
#21 0x00007f53f22d5844 QCoreApplication::exec()
(libQt5Core.so.5 + 0x2bc844)
#22 0x00005568688bb069 n/a (plasmashell + 0x1e069)
#23 0x00007f53f1c94b25 __libc_start_main (libc.so.6 + 0x27b25)
#24 0x00005568688bb2ae n/a (plasmashell + 0x1e2ae)
Stack trace of thread 1249:
#0 0x00007f53f11299ba __futex_abstimed_wait_common64
(libpthread.so.0 + 0x159ba)
#1 0x00007f53f1123574 pthread_cond_timedwait@@GLIBC_2.3.2
(libpthread.so.0 + 0xf574)
#2 0x00007f53f20ed048 QWaitCondition::wait(QMutex*,
QDeadlineTimer) (libQt5Core.so.5 + 0xd4048)
#3 0x00007f53f20ea4f4 n/a (libQt5Core.so.5 + 0xd14f4)
#4 0x00007f53f20e6eff n/a (libQt5Core.so.5 + 0xcdeff)
#5 0x00007f53f111d299 start_thread (libpthread.so.0 + 0x9299)
#6 0x00007f53f1d6c053 __clone (libc.so.6 + 0xff053)
Stack trace of thread 1242:
#0 0x00007f53f11299ba __futex_abstimed_wait_common64
(libpthread.so.0 + 0x159ba)
#1 0x00007f53f1123574 pthread_cond_timedwait@@GLIBC_2.3.2
(libpthread.so.0 + 0xf574)
#2 0x00007f53f20ed048 QWaitCondition::wait(QMutex*,
QDeadlineTimer) (libQt5Core.so.5 + 0xd4048)
#3 0x00007f53f20ea4f4 n/a (libQt5Core.so.5 + 0xd14f4)
#4 0x00007f53f20e6eff n/a (libQt5Core.so.5 + 0xcdeff)
#5 0x00007f53f111d299 start_thread (libpthread.so.0 + 0x9299)
#6 0x00007f53f1d6c053 __clone (libc.so.6 + 0xff053)
Stack trace of thread 1011:
#0 0x00007f53f11299ba __futex_abstimed_wait_common64
(libpthread.so.0 + 0x159ba)
#1 0x00007f53f1123260 pthread_cond_wait@@GLIBC_2.3.2
(libpthread.so.0 + 0xf260)
#2 0x00007f53e6d1c9bc n/a (radeonsi_dri.so + 0x4ee9bc)
#3 0x00007f53e6d1b238 n/a (radeonsi_dri.so + 0x4ed238)
#4 0x00007f53f111d299 start_thread (libpthread.so.0 + 0x9299)
#5 0x00007f53f1d6c053 __clone (libc.so.6 + 0xff053)
Stack trace of thread 1250:
#0 0x00007f53f11299ba __futex_abstimed_wait_common64
(libpthread.so.0 + 0x159ba)
#1 0x00007f53f1123574 pthread_cond_timedwait@@GLIBC_2.3.2
(libpthread.so.0 + 0xf574)
#2 0x00007f53f20ed048 QWaitCondition::wait(QMutex*,
QDeadlineTimer) (libQt5Core.so.5 + 0xd4048)
#3 0x00007f53f20ea4f4 n/a (libQt5Core.so.5 + 0xd14f4)
#4 0x00007f53f20e6eff n/a (libQt5Core.so.5 + 0xcdeff)
#5 0x00007f53f111d299 start_thread (libpthread.so.0 + 0x9299)
#6 0x00007f53f1d6c053 __clone (libc.so.6 + 0xff053)
Stack trace of thread 1005:
#0 0x00007f53f11299ba __futex_abstimed_wait_common64
(libpthread.so
```
Also attached is the journal entry of the service
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