I defined several shortcuts to activate applications via short cut. Since update to 6.0.5 today I get crashes on a regular basis. This bug is probably related: https://bugs.kde.org/show_bug.cgi?id=487422 Mai 26 14:07:52 systemd-coredump[14898]: Process 1257 (kwin_x11) of user 1000 dumped core. Stack trace of thread 1257: #0 0x00007bf0ea6a8e44 n/a (libc.so.6 + 0x94e44) #1 0x00007bf0ea650a30 raise (libc.so.6 + 0x3ca30) #2 0x00007bf0eddd6645 _ZN6KCrash19defaultCrashHandlerEi (libKF6Crash.so.6 + 0x6645) #3 0x00007bf0ea650ae0 n/a (libc.so.6 + 0x3cae0) #4 0x00007bf0ec92a182 n/a (libQt6Qml.so.6 + 0x12a182) #5 0x00007bf0ec964fe4 _ZN3QV415ExecutionEngine8fromDataE9QMetaTypePKvPNS_4Heap6ObjectEij (libQt6Qml.so.6 + 0x164fe4) #6 0x00007bf0ec9cb428 n/a (libQt6Qml.so.6 + 0x1cb428) #7 0x00007bf0ec9cd015 n/a (libQt6Qml.so.6 + 0x1cd015) #8 0x00007bf0ec9d0999 _ZNK3QV413QObjectMethod12callInternalEPKNS_5ValueES3_i (libQt6Qml.so.6 + 0x1d0999) #9 0x00007bf0ec9eeb87 _ZN3QV47Runtime12CallProperty4callEPNS_15ExecutionEngineERKNS_5ValueEiPS4_i (libQt6Qml.so.6 + 0x1eeb87) #10 0x00007bf0cea0175e n/a (n/a + 0x0) #11 0x00007bf0eca1ddce n/a (libQt6Qml.so.6 + 0x21ddce) #12 0x00007bf0ec9854af n/a (libQt6Qml.so.6 + 0x1854af) #13 0x00007bf0ec9eeb87 _ZN3QV47Runtime12CallProperty4callEPNS_15ExecutionEngineERKNS_5ValueEiPS4_i (libQt6Qml.so.6 + 0x1eeb87) #14 0x00007bf0dd583345 n/a (n/a + 0x0) #15 0x00007bf0eca1ddce n/a (libQt6Qml.so.6 + 0x21ddce) #16 0x00007bf0ec9854af n/a (libQt6Qml.so.6 + 0x1854af) #17 0x00007bf0ec9c73d0 n/a (libQt6Qml.so.6 + 0x1c73d0) #18 0x00007bf0eada17b7 n/a (libQt6Core.so.6 + 0x1a17b7) #19 0x00007bf0ed7d7d57 _ZN4KWin14EffectsHandler14desktopChangedEPNS_14VirtualDesktopES2_PNS_12EffectWindowE (libkwin.so.6 + 0x1d7d57) #20 0x00007bf0eada17b7 n/a (libQt6Core.so.6 + 0x1a17b7) #21 0x00007bf0ed98d82b _ZN4KWin9Workspace21currentDesktopChangedEPNS_14VirtualDesktopEPNS_6WindowE (libkwin.so.6 + 0x38d82b) #22 0x00007bf0ed981507 _ZN4KWin9Workspace25slotCurrentDesktopChangedEPNS_14VirtualDesktopES2_ (libkwin.so.6 + 0x381507) #23 0x00007bf0eada17b7 n/a (libQt6Core.so.6 + 0x1a17b7) #24 0x00007bf0ed94483b _ZN4KWin21VirtualDesktopManager14currentChangedEPNS_14VirtualDesktopES2_ (libkwin.so.6 + 0x34483b) #25 0x00007bf0ed947353 _ZN4KWin21VirtualDesktopManager10setCurrentEPNS_14VirtualDesktopE (libkwin.so.6 + 0x347353) #26 0x00007bf0ed75e4fe _ZN4KWin9Workspace14activateWindowEPNS_6WindowEb (libkwin.so.6 + 0x15e4fe) #27 0x00007bf0eada17b7 n/a (libQt6Core.so.6 + 0x1a17b7) #28 0x00007bf0eb71b094 _ZN7QAction8activateENS_11ActionEventE (libQt6Gui.so.6 + 0x51b094) #29 0x00007bf0eada17b7 n/a (libQt6Core.so.6 + 0x1a17b7) #30 0x00007bf0edd937d8 n/a (libKF6GlobalAccel.so.6 + 0x227d8) #31 0x00007bf0edd96cbf n/a (libKF6GlobalAccel.so.6 + 0x25cbf) #32 0x00007bf0ec3c963d n/a (libQt6DBus.so.6 + 0x3c63d) #33 0x00007bf0ead8c0cf _ZN7QObject5eventEP6QEvent (libQt6Core.so.6 + 0x18c0cf) #34 0x00007bf0ebcfc55c _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt6Widgets.so.6 + 0xfc55c) #35 0x00007bf0ead44e08 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6 + 0x144e08) #36 0x00007bf0ead451cb _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt6Core.so.6 + 0x1451cb) #37 0x00007bf0eafa45ec n/a (libQt6Core.so.6 + 0x3a45ec) #38 0x00007bf0e9b0ea89 n/a (libglib-2.0.so.0 + 0x5ca89) #39 0x00007bf0e9b709b7 n/a (libglib-2.0.so.0 + 0xbe9b7) #40 0x00007bf0e9b0df95 g_main_context_iteration (libglib-2.0.so.0 + 0x5bf95) #41 0x00007bf0eafa28bd _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x3a28bd) #42 0x00007bf0ead4f0de _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x14f0de) #43 0x00007bf0ead4942d _ZN16QCoreApplication4execEv (libQt6Core.so.6 + 0x14942d) #44 0x000060d514a43d2b n/a (kwin_x11 + 0x38d2b) #45 0x00007bf0ea639c88 n/a (libc.so.6 + 0x25c88) #46 0x00007bf0ea639d4c __libc_start_main (libc.so.6 + 0x25d4c) #47 0x000060d514a479b5 n/a (kwin_x11 + 0x3c9b5) Stack trace of thread 1266: #0 0x00007bf0ea71c39d __poll (libc.so.6 + 0x10839d) #1 0x00007bf0e9b708fd n/a (libglib-2.0.so.0 + 0xbe8fd) #2 0x00007bf0e9b0df95 g_main_context_iteration (libglib-2.0.so.0 + 0x5bf95) #3 0x00007bf0eafa28bd _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x3a28bd) #4 0x00007bf0ead4f0de _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x14f0de) #5 0x00007bf0eae3a4b0 _ZN7QThread4execEv (libQt6Core.so.6 + 0x23a4b0) #6 0x00007bf0ec3badfe n/a (libQt6DBus.so.6 + 0x2ddfe) #7 0x00007bf0eaec96b7 n/a (libQt6Core.so.6 + 0x2c96b7) #8 0x00007bf0ea6a6ded n/a (libc.so.6 + 0x92ded) #9 0x00007bf0ea72a0dc n/a (libc.so.6 + 0x1160dc) Stack trace of thread 1267: #0 0x00007bf0ea71c39d __poll (libc.so.6 + 0x10839d) #1 0x00007bf0ede4520b n/a (libxcb.so.1 + 0xd20b) #2 0x00007bf0ede46f3d xcb_wait_for_event (libxcb.so.1 + 0xef3d) #3 0x00007bf0e55ae211 n/a (libQt6XcbQpa.so.6 + 0x4e211) #4 0x00007bf0eaec96b7 n/a (libQt6Core.so.6 + 0x2c96b7) #5 0x00007bf0ea6a6ded n/a (libc.so.6 + 0x92ded) #6 0x00007bf0ea72a0dc n/a (libc.so.6 + 0x1160dc) Stack trace of thread 9621: #0 0x00007bf0ea6a34e9 n/a (libc.so.6 + 0x8f4e9) #1 0x00007bf0ea6a5ed9 pthread_cond_wait (libc.so.6 + 0x91ed9) #2 0x00007bf0eaece090 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x2ce090) #3 0x00007bf0ed219cca n/a (libQt6Quick.so.6 + 0x419cca) #4 0x00007bf0eaec96b7 n/a (libQt6Core.so.6 + 0x2c96b7) #5 0x00007bf0ea6a6ded n/a (libc.so.6 + 0x92ded) #6 0x00007bf0ea72a0dc n/a (libc.so.6 + 0x1160dc) Stack trace of thread 9618: #0 0x00007bf0ea71c39d __poll (libc.so.6 + 0x10839d) #1 0x00007bf0e9b708fd n/a (libglib-2.0.so.0 + 0xbe8fd) #2 0x00007bf0e9b0df95 g_main_context_iteration (libglib-2.0.so.0 + 0x5bf95) #3 0x00007bf0eafa28bd _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x3a28bd) #4 0x00007bf0ead4f0de _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x14f0de) #5 0x00007bf0eae40dd0 _ZN7QThread3runEv (libQt6Core.so.6 + 0x240dd0) #6 0x00007bf0eaec96b7 n/a (libQt6Core.so.6 + 0x2c96b7) #7 0x00007bf0ea6a6ded n/a (libc.so.6 + 0x92ded) #8 0x00007bf0ea72a0dc n/a (libc.so.6 + 0x1160dc) Stack trace of thread 1381: #0 0x00007bf0ea71c39d __poll (libc.so.6 + 0x10839d) #1 0x00007bf0e9b708fd n/a (libglib-2.0.so.0 + 0xbe8fd) #2 0x00007bf0e9b0df95 g_main_context_iteration (libglib-2.0.so.0 + 0x5bf95) #3 0x00007bf0eafa28bd _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x3a28bd) #4 0x00007bf0ead4f0de _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x14f0de) #5 0x00007bf0eae40dd0 _ZN7QThread3runEv (libQt6Core.so.6 + 0x240dd0) #6 0x00007bf0eaec96b7 n/a (libQt6Core.so.6 + 0x2c96b7) #7 0x00007bf0ea6a6ded n/a (libc.so.6 + 0x92ded) #8 0x00007bf0ea72a0dc n/a (libc.so.6 + 0x1160dc) Stack trace of thread 1328: #0 0x00007bf0ea71c39d __poll (libc.so.6 + 0x10839d) #1 0x00007bf0e9b708fd n/a (libglib-2.0.so.0 + 0xbe8fd) #2 0x00007bf0e9b0df95 g_main_context_iteration (libglib-2.0.so.0 + 0x5bf95) #3 0x00007bf0eafa28bd _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x3a28bd) #4 0x00007bf0ead4f0de _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x14f0de) #5 0x00007bf0eae40dd0 _ZN7QThread3runEv (libQt6Core.so.6 + 0x240dd0) #6 0x00007bf0eaec96b7 n/a (libQt6Core.so.6 + 0x2c96b7) #7 0x00007bf0ea6a6ded n/a (libc.so.6 + 0x92ded) #8 0x00007bf0ea72a0dc n/a (libc.so.6 + 0x1160dc) ELF object binary architecture: AMD x86-64
The backtrace suggests it crashes while switching the virtual desktop when an application is activated, but I cannot reproduce it
Thanks for looking into this! Nate Graham suggested another (probably related) bug to be already fixed here: https://invent.kde.org/plasma/kglobalacceld/-/merge_requests/49 He suggested the merge within context of this bug: https://bugs.kde.org/show_bug.cgi?id=487422 I superficially looked into it, because my ressources are limited right now. But accidentally the merge and the crash posted here are QTimer related. Of course I am neither superstitious nor esoteric, but its just what I concluded :-)
The trace doesn't look that related. This is in some script based effect when the virtual desktop changed after activating a window on another desktop. Unfortunately the backtrace is missing a lot of symbols, we can't see which effect or why. You said it happens regularly? Is it every time you press this shortcut? Can you narrow it down to a specific combination of apps open?
Hi David! Thanks for your feedback! I am still observing this issue. But since my latest update (2nd of June or so) and reboot, the crash did not happen again. I'll feed more info here, but I will have to build with debugging symbols also.
*** Bug 487422 has been marked as a duplicate of this bug. ***
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!