| Summary: | Wayland: kded5 crashed on login | ||
|---|---|---|---|
| Product: | [Plasma] KScreen | Reporter: | Lyubomir <liubomirwm> |
| Component: | kded | Assignee: | kscreen-bugs-null <kscreen-bugs-null> |
| Status: | RESOLVED FIXED | ||
| Severity: | crash | CC: | a.samirh78, aleixpol, bugseforuns, kde, kdelibs-bugs, nate, nicolas.fella, postix, s.ruecker, vlad.zahorodnii |
| Priority: | NOR | ||
| Version: | master | ||
| Target Milestone: | --- | ||
| Platform: | Arch Linux | ||
| OS: | Linux | ||
| Latest Commit: | https://invent.kde.org/plasma/libkscreen/commit/167b699020ccd42e185834c490434a095b8b9d67 | Version Fixed In: | 5.25 |
| Sentry Crash Report: | |||
Probably a better trace?
Application: kded5 (kded5), signal: Segmentation fault
Content of s_kcrashErrorMessage: {_M_t = {<std::__uniq_ptr_impl<char, std::default_delete<char []> >> = {_M_t = std::tuple containing = {[1] = 0x0, [2] = {<No data fields>}}}, <No data fields>}}
[KCrash Handler]
#6 0x00007f7da1bf0f8a in QtWayland::kde_primary_output_v1::handle_primary_output(void*, kde_primary_output_v1*, char const*) (data=0x55aa8baabd50, object=0x55aa8ba9cd90, output_name=0x7f7db4007d4c "eDP-1") at /usr/src/debug/build/backends/kwayland/qwayland-kde-primary-output-v1.cpp:83
#7 0x00007f7dc2d74536 in ffi_call_unix64 () at ../src/x86/unix64.S:105
#8 0x00007f7dc2d71037 in ffi_call_int (cif=<optimized out>, fn=<optimized out>, rvalue=<optimized out>, avalue=<optimized out>, closure=<optimized out>) at ../src/x86/ffi64.c:672
#9 0x00007f7dc2d805e2 in wl_closure_invoke (closure=closure@entry=0x7f7db4007c70, target=<optimized out>, target@entry=0x55aa8ba9cd90, opcode=opcode@entry=0, data=<optimized out>, flags=<optimized out>) at ../wayland-1.20.0/src/connection.c:1025
#10 0x00007f7dc2d80d73 in dispatch_event (display=0x55aa8b42c900, queue=<optimized out>, queue=<optimized out>) at ../wayland-1.20.0/src/wayland-client.c:1583
#11 0x00007f7dc2d80f8c in dispatch_queue (queue=0x55aa8b42c9d0, display=0x55aa8b42c900) at ../wayland-1.20.0/src/wayland-client.c:1729
#12 wl_display_dispatch_queue_pending (display=0x55aa8b42c900, queue=0x55aa8b42c9d0) at ../wayland-1.20.0/src/wayland-client.c:1971
#13 0x00007f7dbdf7f5b6 in QtWaylandClient::QWaylandDisplay::flushRequests() (this=<optimized out>) at /usr/src/debug/qtwayland/src/client/qwaylanddisplay.cpp:253
#14 0x00007f7dc1ba54af in doActivate<false>(QObject*, int, void**) (sender=0x55aa8b45fc20, signal_index=4, argv=0x7ffdc9166a30) at kernel/qobject.cpp:3898
#15 0x00007f7dc1bc0615 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55aa8b45fc20, flags=...) at kernel/qeventdispatcher_glib.cpp:430
#16 0x00007f7dc1b6c88b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffdc9166b50, flags=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#17 0x00007f7dc1b77fd7 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#18 0x000055aa8a270a62 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kded-5.92.0/src/kded.cpp:769
[Inferior 1 (process 168335) detached]
*** Bug 452204 has been marked as a duplicate of this bug. *** My working theory is because "WaylandPrimaryOutput" does no wl_proxy_destroy in the dtor any messages sent afterwards will get dispatched, but our wrapper is gone, so it will crash in the generated handler. Git commit 167b699020ccd42e185834c490434a095b8b9d67 by David Edmundson. Committed on 06/05/2022 at 11:19. Pushed by davidedmundson into branch 'master'. Delete proxy for PrimaryOutput wayland interface in destructor When our wrapper class QtWayland::kde_primary_output_v1 gets destroyed there is no code to delete the underlying wl_proxy object. Any events to that proxy after our wrapper have gone will get disaptched to the generated code which in turn will just crash. M +7 -0 backends/kwayland/waylandoutputmanagement.cpp M +1 -0 backends/kwayland/waylandoutputmanagement.h https://invent.kde.org/plasma/libkscreen/commit/167b699020ccd42e185834c490434a095b8b9d67 *** Bug 454362 has been marked as a duplicate of this bug. *** https://bugs.kde.org/show_bug.cgi?id=462700 has a similar crash in a recent Plasma |
OBSERVED RESULT Application: kded5 (kded5), signal: Segmentation fault Content of s_kcrashErrorMessage: {_M_t = {<std::__uniq_ptr_impl<char, std::default_delete<char []> >> = {_M_t = std::tuple containing = {[1] = 0x0, [2] = {<No data fields>}}}, <No data fields>}} [KCrash Handler] #6 0x00007f8d24198f8a in QtWayland::kde_primary_output_v1::handle_primary_output(void*, kde_primary_output_v1*, char const*) (data=0x55b513665fe0, object=0x55b51365e900, output_name=0x7f8d3800856c "eDP-1") at /usr/src/debug/build/backends/kwayland/qwayland-kde-primary-output-v1.cpp:83 #7 0x00007f8d46992d4a in () at /usr/lib/libffi.so.8 #8 0x00007f8d46992267 in () at /usr/lib/libffi.so.8 #9 0x00007f8d469a2323 in () at /usr/lib/libwayland-client.so.0 #10 0x00007f8d4699e5ab in () at /usr/lib/libwayland-client.so.0 #11 0x00007f8d4699ff4c in wl_display_dispatch_queue_pending () at /usr/lib/libwayland-client.so.0 #12 0x00007f8d41bb85c6 in QtWaylandClient::QWaylandDisplay::flushRequests() (this=<optimized out>) at /usr/src/debug/qtwayland/src/client/qwaylanddisplay.cpp:253 #13 0x00007f8d457c74af in doActivate<false>(QObject*, int, void**) (sender=0x55b51307f840, signal_index=4, argv=0x7fffe627f3e0) at kernel/qobject.cpp:3898 #14 0x00007f8d457e2615 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55b51307f840, flags=...) at kernel/qeventdispatcher_glib.cpp:430 #15 0x00007f8d4578e88b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fffe627f500, flags=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69 #16 0x00007f8d45799fd7 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121 #17 0x00007f8d45cec432 in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1867 #18 0x00007f8d4643f54a in QApplication::exec() () at kernel/qapplication.cpp:2829 #19 0x000055b5123a3a62 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kded-5.92.0/src/kded.cpp:769 [Inferior 1 (process 294800) detached] EXPECTED RESULT No crash SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.24.3 KDE Frameworks Version: 5.92.0 Qt Version: 5.15.3 Kernel Version: 5.16.15-zen1-1-zen (64-bit) Graphics Platform: Wayland Processors: 8 × Intel® Core™ i5-8250U CPU @ 1.60GHz Memory: 7,6 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 620 ADDITIONAL INFORMATION What I;ve noticed is that on login usually there is a notification about some progress called "akonadi_migration_agent" that shows for about 2-3 seconds, but this time it is stuck.