Bug 515234

Summary: plasmashell crash with systemctl restart
Product: [Plasma] plasmashell Reporter: Devin Bidwell <dbidwell94>
Component: generic-crashAssignee: Plasma Bugs List <plasma-bugs-null>
Status: CONFIRMED ---    
Severity: crash CC: akselmo
Priority: NOR Keywords: drkonqi
Version First Reported In: 6.5.5   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description Devin Bidwell 2026-01-29 00:50:19 UTC 
Application: plasmashell (6.5.5)

ApplicationNotResponding [ANR]: false
Qt Version: 6.10.1
Frameworks Version: 6.22.0
Operating System: Linux 6.18.6-arch1-1 x86_64
Windowing System: Wayland
Distribution: "Arch Linux"
DrKonqi: 6.5.5 [CoredumpBackend]

-- Information about the crash:
When attempting to restart my plasma shell with `systemctl restart --user plasma-plasmashell`, the following crash handler happens. Plasmashell comes back just fine, but is very laggy when coming back to life. Stabilizes after 10 seconds or so. Using 3 monitors, all 3 monitors have cloned panels that I think might be causing the issue.

The crash can be reproduced every time.

-- Backtrace (Reduced):
#5  0x00007f0fdd0b2817 in unlink_chunk (p=p@entry=0x558ecb43c460, av=0x7f0fdd1f6ac0 <main_arena>) at malloc.c:1627
#6  0x00007f0fdd0b3cb8 in _int_free_merge_chunk (av=av@entry=0x7f0fdd1f6ac0 <main_arena>, p=0x558ecb43c460, size=<optimized out>) at malloc.c:4799
#7  0x00007f0fdd0b3f51 in _int_free_chunk (av=0x7f0fdd1f6ac0 <main_arena>, p=<optimized out>, size=<optimized out>, have_lock=<optimized out>) at malloc.c:4729
#8  0x00007f0fde41e835 in QAction::~QAction (this=<optimized out>, this=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/gui/kernel/qaction.cpp:463
#9  0x00007f0fdd7bcde2 in QObjectPrivate::deleteChildren (this=this@entry=0x558ecb4004b0) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobject.cpp:2212
#10 0x00007f0fdd7c37de in QObject::~QObject (this=<optimized out>, this=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobject.cpp:1122
#11 0x00007f0fb3fe8b20 in org_kde_panel_Plugin::~org_kde_panel_Plugin (this=<optimized out>, this=<optimized out>) at /usr/src/debug/plasma-desktop/build/containments/panel/org.kde.panel.cpp:5
#12 org_kde_panel_Plugin::~org_kde_panel_Plugin (this=<optimized out>, this=<optimized out>) at /usr/src/debug/plasma-desktop/build/containments/panel/org.kde.panel.cpp:5
#13 0x0000558e97d28696 in ShellCorona::~ShellCorona (this=<optimized out>, this=<optimized out>) at /usr/src/debug/plasma-workspace/plasma-workspace-6.5.5/shell/shellcorona.cpp:355
#14 0x0000558e97cf92f4 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-workspace/plasma-workspace-6.5.5/shell/main.cpp:189


Reported using DrKonqi
Comment 1 Devin Bidwell 2026-01-29 00:50:21 UTC 
Created attachment 189009 [details]
New crash information added by DrKonqi

DrKonqi auto-attaching complete backtrace.
Comment 2 Akseli Lahtinen 2026-01-29 11:15:28 UTC 
I have had this occasionally, but it's very random. But I can confirm this happens. I will send backtrace next time it does.

Operating System: KDE Linux 2026-01-28
KDE Plasma Version: 6.6.80
KDE Frameworks Version: 6.23.0
Qt Version: 6.10.1
Kernel Version: 6.18.6-zen1-1-zen (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 3600 6-Core Processor
Memory: 16 GiB of RAM (15.5 GiB usable)
Graphics Processor: AMD Radeon RX 6600