| Summary: | Plasmashell crashes in Plasma::Containment::lastScreen() after ShellCorona::createWaitingPanels() when unlocking screen after resuming from sleep while external screen is connected over HDMI | ||
|---|---|---|---|
| Product: | [Plasma] plasmashell | Reporter: | postix <postix> |
| Component: | generic-crash | Assignee: | Plasma Bugs List <plasma-bugs> |
| Status: | RESOLVED FIXED | ||
| Severity: | crash | CC: | felix.schmidt.1, kde.whxeb, kdedev, nate, notmart |
| Priority: | NOR | Keywords: | multiscreen |
| Version: | 6.0.5 | ||
| Target Milestone: | 1.0 | ||
| Platform: | Fedora RPMs | ||
| OS: | Linux | ||
| Latest Commit: | https://invent.kde.org/plasma/plasma-workspace/-/commit/434e13d01e0e9c07548e2a46c0be45050720bba7 | Version Fixed In: | 6.2.4 |
| Sentry Crash Report: | |||
| Attachments: | Full Stack Trace (Plasma 6.0.5) | ||
Created attachment 169907 [details]
Full Stack Trace (Plasma 6.0.5)
From the sources of 6.0.5, it means that a panel in m_waitingPanels has been deleted before being created for (Plasma::Containment *cont : std::as_const(m_waitingPanels)) {
// ignore non existing (yet?) screens
int requestedScreen = cont->lastScreen(); <=== crash
if (requestedScreen < 0) {
requestedScreen = 0;
}
however during a sleep/resume cycle the containment itself should never be deleted, perhaps its view if the screen reported itself disconnecte, but not Containment* *** This bug has been marked as a duplicate of bug 478071 *** *** Bug 490541 has been marked as a duplicate of this bug. *** *** Bug 447773 has been marked as a duplicate of this bug. *** Confirming since there are multiple reports of the same crash A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/4922 Git commit 0e933b4607e88a9fbd4db9dfd78b69d895cd0b8b by Marco Martin. Committed on 21/11/2024 at 09:30. Pushed by mart into branch 'master'. plasmashell: begin earlier to watch for panel destruction watch for panel containment destructionn earlier, since it's inserted in m_waitingPanels, for the unlikely event of a containment destruction before the panel is assigned a view M +13 -0 shell/shellcorona.cpp https://invent.kde.org/plasma/plasma-workspace/-/commit/0e933b4607e88a9fbd4db9dfd78b69d895cd0b8b Git commit 434e13d01e0e9c07548e2a46c0be45050720bba7 by Marco Martin. Committed on 21/11/2024 at 11:05. Pushed by mart into branch 'Plasma/6.2'. plasmashell: begin earlier to watch for panel destruction watch for panel containment destructionn earlier, since it's inserted in m_waitingPanels, for the unlikely event of a containment destruction before the panel is assigned a view (cherry picked from commit 0e933b4607e88a9fbd4db9dfd78b69d895cd0b8b) Co-authored-by: Marco Martin <notmart@gmail.com> M +13 -0 shell/shellcorona.cpp https://invent.kde.org/plasma/plasma-workspace/-/commit/434e13d01e0e9c07548e2a46c0be45050720bba7 |
SUMMARY Plasmashell crashes when logging when an external screen connected over HDMI STEPS TO REPRODUCE 1. Sleep 2. Login in in locked session OBSERVED RESULT Plasmashell crashes but recovers itself ``` Core was generated by `/usr/bin/plasmashell --no-respawn'. Program terminated with signal SIGSEGV, Segmentation fault. #0 __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44 44 return INTERNAL_SYSCALL_ERROR_P (ret) ? INTERNAL_SYSCALL_ERRNO (ret) : 0; [Current thread is 1 (Thread 0x7f5dcb791b00 (LWP 5193))] (gdb) bt #0 __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44 #1 0x00007f5dd00ab1b3 in __pthread_kill_internal (threadid=<optimized out>, signo=11) at pthread_kill.c:78 #2 0x00007f5dd005365e in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26 #3 0x00007f5dd34746a5 in KCrash::defaultCrashHandler (sig=11) at /usr/src/debug/kf6-kcrash-6.2.0-1.fc40.x86_64/src/kcrash.cpp:593 #4 0x00007f5dd0053710 in <signal handler called> () at /lib64/libc.so.6 #5 Plasma::Containment::lastScreen (this=this@entry=0x4e36c8ebd9f23aef) at /usr/src/debug/libplasma-6.0.5-1.fc40.x86_64/src/plasma/containment.cpp:492 #6 0x00005649e94389cd in ShellCorona::createWaitingPanels (this=<optimized out>) at /usr/src/debug/plasma-workspace-6.0.5-1.fc40.x86_64/shell/shellcorona.cpp:1496 #7 0x00007f5dd07fa3f4 in QtPrivate::QSlotObjectBase::call (this=0x5649ea267a50, r=<optimized out>, a=0x7ffd3c174e20) at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/corelib/kernel/qobjectdefs_impl.h:469 #8 doActivate<false> (sender=0x5649ea03f940, signal_index=3, argv=0x7ffd3c174e20) at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/corelib/kernel/qobject.cpp:4078 #9 0x00007f5dd07f09a7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f5dd0c83100, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd3c174e20) at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/corelib/kernel/qobject.cpp:4138 #10 0x00007f5dd08094bd in QTimer::timeout (this=<optimized out>, _t1=...) at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/redhat-linux-build/src/corelib/Core_autogen/include/moc_qtimer.cpp:224 #11 0x00007f5dd07ebccf in QObject::event (this=0x5649ea03f940, e=0x7ffd3c174fd0) at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/corelib/kernel/qobject.cpp:1476 #12 0x00007f5dd2b8b368 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5649ea03f940, e=0x7ffd3c174fd0) at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/widgets/kernel/qapplication.cpp:3287 #13 0x00007f5dd0795ab8 in QCoreApplication::notifyInternal2 (receiver=0x5649ea03f940, event=0x7ffd3c174fd0) at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/corelib/kernel/qcoreapplication.cpp:1134 #14 0x00007f5dd0795d1d in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>) at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/corelib/kernel/qcoreapplication.cpp:1575 #15 0x00007f5dd094d797 in QTimerInfoList::activateTimers (this=0x5649e9d65730) at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/corelib/kernel/qtimerinfo_unix.cpp:436 #16 0x00007f5dd0a7bdb9 in timerSourceDispatch (source=<optimized out>) at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:150 #17 0x00007f5dcf3616ac in g_main_dispatch (context=0x7f5db8000f00) at ../glib/gmain.c:3344 #18 g_main_context_dispatch_unlocked (context=0x7f5db8000f00) at ../glib/gmain.c:4152 #19 0x00007f5dcf3c2708 in g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x7f5db8000f00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4217 #20 0x00007f5dcf362b23 in g_main_context_iteration (context=0x7f5db8000f00, may_block=1) at ../glib/gmain.c:4282 #21 0x00007f5dd0a7bf83 in QEventDispatcherGlib::processEvents (this=0x5649e9d4fa40, flags=...) at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:394 #22 0x00007f5dd07a26b3 in QEventLoop::exec (this=this@entry=0x7ffd3c1752a0, flags=..., flags@entry=...) at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/corelib/global/qflags.h:34 #23 0x00007f5dd079e63c in QCoreApplication::exec () at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/corelib/global/qflags.h:74 #24 0x00007f5dd0fd518d in QGuiApplication::exec () at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/gui/kernel/qguiapplication.cpp:1926 #25 0x00007f5dd2b8b2d9 in QApplication::exec () at /usr/src/debug/qt6-qtbase-6.7.0-5.fc40.x86_64/src/widgets/kernel/qapplication.cpp:2555 #26 0x00005649e93f9ea5 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-workspace-6.0.5-1.fc40.x86_64/shell/main.cpp:214 ``` SOFTWARE/OS VERSIONS Operating System: Fedora Linux 40 KDE Plasma Version: 6.0.5 KDE Frameworks Version: 6.2.0 Qt Version: 6.7.0 Kernel Version: 6.8.10-300.fc40.x86_64 (64-bit) Graphics Platform: Wayland