https://bugs.kde.org/show_bug.cgi?id=471248
--- Comment #8 from Matt Fagnani <matt.fagn...@bell.net> --- I set TimeoutSec=1000sec in /usr/lib/systemd/user/plasma-plasmashell.service to work around the problem I reported at https://bugs.kde.org/show_bug.cgi?id=478287 Using Plasma 5.27.10 on Wayland with KF 5.113.0 and Qt 5.15.12, I attached gdb to plasmashell with gdb -p $(pidof plasmashell) I played Instagram story videos in Firefox 123.0a1 on Wayland. plasmashell crashed. I ran bt in gdb which then crashed. Thread 1 "plasmashell" received signal SIGSEGV, Segmentation fault. 0x00007fe9f08b3a72 in __dynamic_cast () from /lib64/libstdc++.so.6 (gdb) bt #0 0x00007fe9f08b3a72 in __dynamic_cast () at /lib64/libstdc++.so.6 #1 0x00007fe9f32b7200 in Plasma::DataContainer::getDataEngine() () at /lib64/libKF5Plasma.so.5 Fatal signal: Segmentation fault ----- Backtrace ----- 0x559983a27140 gdb_internal_backtrace_1 ../../gdb/bt-utils.c:122 0x559983a27140 _Z22gdb_internal_backtracev ../../gdb/bt-utils.c:168 0x559983b64252 handle_fatal_signal ../../gdb/event-top.c:895 0x559983b64429 handle_sigsegv ../../gdb/event-top.c:968 0x7f0426f6e99f ??? /usr/src/debug/glibc-2.38-14.fc39.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0 0x5599839f43e8 _ZNK5block5scopeEv ../../gdb/block.c:293 0x559983aab066 _Z26cp_lookup_transparent_typePKc ../../gdb/cp-namespace.c:1029 0x559983ba009c _Z13check_typedefP4type ../../gdb/gdbtypes.c:3052 0x559983d2601c _Z19type_to_type_objectP4type ../../gdb/python/py-type.c:1468 0x559983d274f3 convert_field ../../gdb/python/py-type.c:221 0x559983d27afe make_fielditem ../../gdb/python/py-type.c:275 0x559983d27afe typy_iterator_iternext ../../gdb/python/py-type.c:1440 0x7f04278339fb ??? /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Objects/listobject.c:944 0x7f04278470e0 ??? /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Objects/listobject.c:982 0x559983d26f0b typy_fields_items ../../gdb/python/py-type.c:311 0x7f042781ab19 ??? /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Objects/descrobject.c:454 0x7f042780abfb ??? /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Include/internal/pycore_call.h:92 0x7f042770f759 ??? Python/bytecodes.c:2706 0x7f0427812cda ??? /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Include/internal/pycore_call.h:92 0x7f042788d08f ??? /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Objects/call.c:957 0x559983d19ca7 search_pp_list ../../gdb/python/py-prettyprint.c:83 0x559983d1a182 find_pretty_printer_from_objfiles ../../gdb/python/py-prettyprint.c:113 0x559983d1a182 find_pretty_printer ../../gdb/python/py-prettyprint.c:173 0x559983d1a647 _Z30gdbpy_apply_val_pretty_printerPK23extension_language_defnP5valueP7ui_fileiPK19value_print_optionsPK13language_defn ../../gdb/python/py-prettyprint.c:603 0x559983b6b748 _Z33apply_ext_lang_val_pretty_printerP5valueP7ui_fileiPK19value_print_optionsPK13language_defn ../../gdb/extension.c:489 0x559983f038e6 _Z16common_val_printP5valueP7ui_fileiPK19value_print_optionsPK13language_defn ../../gdb/valprint.c:1072 0x559983d0519e py_print_value ../../gdb/python/py-framefilter.c:251 0x559983d057cb py_print_single_arg ../../gdb/python/py-framefilter.c:397 0x559983d05dee enumerate_args ../../gdb/python/py-framefilter.c:488 0x559983d070dd py_print_args ../../gdb/python/py-framefilter.c:721 0x559983d070dd py_print_frame ../../gdb/python/py-framefilter.c:952 0x559983d087d2 _Z24gdbpy_apply_frame_filterPK23extension_language_defn14frame_info_ptr10enum_flagsI17frame_filter_flagE19ext_lang_frame_argsP6ui_outii ../../gdb/python/py-framefilter.c:1228 0x559983b6bf89 _Z27apply_ext_lang_frame_filter14frame_info_ptr10enum_flagsI17frame_filter_flagE19ext_lang_frame_argsP6ui_outii ../../gdb/extension.c:541 0x559983e0a166 backtrace_command_1 ../../gdb/stack.c:2029 0x559983e0a166 backtrace_command ../../gdb/stack.c:2168 0x559983a63794 _Z8cmd_funcP16cmd_list_elementPKci ../../gdb/cli/cli-decode.c:2735 0x559983e73b24 _Z15execute_commandPKci ../../gdb/top.c:575 0x559983b64ab1 _Z15command_handlerPKc ../../gdb/event-top.c:555 0x559983b665a8 _Z20command_line_handlerOSt10unique_ptrIcN3gdb13xfree_deleterIcEEE ../../gdb/event-top.c:791 0x559983b65170 gdb_rl_callback_handler ../../gdb/event-top.c:260 0x7f0427eaf0dc ??? 0x559983b652d5 gdb_rl_callback_read_char_wrapper_noexcept ../../gdb/event-top.c:196 0x559983b65487 gdb_rl_callback_read_char_wrapper ../../gdb/event-top.c:235 0x559983eb501f stdin_event_handler ../../gdb/ui.c:155 0x5599840e573d gdb_wait_for_event ../../gdbsupport/event-loop.cc:716 0x5599840e62f1 _Z16gdb_do_one_eventi ../../gdbsupport/event-loop.cc:264 0x559983c51b11 start_event_loop ../../gdb/main.c:407 0x559983c51b11 captured_command_loop ../../gdb/main.c:471 0x559983c54874 captured_main ../../gdb/main.c:1324 0x559983c54874 _Z8gdb_mainP18captured_main_args ../../gdb/main.c:1343 0x559983924baf main ../../gdb/gdb.c:47 --------------------- A fatal error internal to GDB has been detected, further debugging is not possible. GDB will now terminate. This is a bug, please report it. For instructions, see: <https://www.gnu.org/software/gdb/bugs/>. Segmentation fault (core dumped) drkonqi appeared. I got the following trace of the plasmashell crash in __cxxabiv1::__dynamic_cast. The functions below that looked like those in the plasmashell crash I reported at https://bugs.kde.org/show_bug.cgi?id=477168 The trace seemed to involve the media player applet. Application: Plasma (plasmashell), signal: Segmentation fault [KCrash Handler] #4 __cxxabiv1::__dynamic_cast (src_ptr=0x5600d9c83db0, src_type=0x7fe9f1168f70 <typeinfo for QObject>, dst_type=0x7fe9f3310ff0 <typeinfo for Plasma::DataEngine>, src2dst=0) at ../../../../libstdc++-v3/libsupc++/dyncast.cc:57 #5 0x00007fe9f32b7200 in Plasma::DataContainer::getDataEngine (this=this@entry=0x5600d9c83dc0) at /usr/src/debug/kf5-plasma-5.113.0-1.fc39.x86_64/src/plasma/datacontainer.cpp:206 #6 0x00007fe958025fed in MultiplexedService::activePlayerChanged (this=this@entry=0x5600d702e7c0, container=0x5600d9c83dc0) at /usr/src/debug/plasma-workspace-5.27.10-1.fc39.x86_64/dataengines/mpris2/multiplexedservice.cpp:58 #7 0x00007fe95802d1d8 in MultiplexedService::MultiplexedService (parent=<optimized out>, multiplexer=0x5600d968d760, this=0x5600d702e7c0) at /usr/src/debug/plasma-workspace-5.27.10-1.fc39.x86_64/dataengines/mpris2/multiplexedservice.cpp:25 #8 Mpris2Engine::serviceForSource (this=<optimized out>, source=<optimized out>) at /usr/src/debug/plasma-workspace-5.27.10-1.fc39.x86_64/dataengines/mpris2/mpris2engine.cpp:40 #9 0x00007fe9b421a130 in Plasma::DataSource::serviceForSource (source=..., this=0x5600d9c44420) at /usr/src/debug/kf5-plasma-5.113.0-1.fc39.x86_64/src/declarativeimports/core/datasource.cpp:208 #10 Plasma::DataSource::qt_static_metacall (_o=0x5600d9c44420, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=<optimized out>) at /usr/src/debug/kf5-plasma-5.113.0-1.fc39.x86_64/redhat-linux-build/src/declarativeimports/core/corebindingsplugin_autogen/include/moc_datasource.cpp:201 #11 0x00007fe9b421b922 in Plasma::DataSource::qt_metacall (this=0x5600d9c44420, _c=QMetaObject::InvokeMetaMethod, _id=16, _a=0x7ffdef4fb370) at /usr/src/debug/kf5-plasma-5.113.0-1.fc39.x86_64/redhat-linux-build/src/declarativeimports/core/corebindingsplugin_autogen/include/moc_datasource.cpp:370 #12 0x00007fe9f26f536a in QQmlObjectOrGadget::metacall (this=this@entry=0x7ffdef4fb610, type=type@entry=QMetaObject::InvokeMetaMethod, index=<optimized out>, index@entry=21, argv=<optimized out>) at qml/qqmlobjectorgadget.cpp:51 #13 0x00007fe9f25c7cd3 in CallMethod (callType=<optimized out>, callArgs=0x7ffdef4fb370, engine=<optimized out>, argTypes=<optimized out>, argCount=<optimized out>, returnType=<optimized out>, index=<optimized out>, object=...) at /usr/include/qt5/QtCore/qvarlengtharray.h:189 #14 CallPrecise (object=..., data=<optimized out>, engine=engine@entry=0x5600d6699500, callArgs=callArgs@entry=0x7fe9c4269588, callType=callType@entry=QMetaObject::InvokeMetaMethod) at jsruntime/qv4qobjectwrapper.cpp:1553 #15 0x00007fe9f25c9ad2 in CallOverloaded (callType=<optimized out>, propertyCache=<optimized out>, callArgs=<optimized out>, engine=<optimized out>, data=<optimized out>, object=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:1629 #16 QV4::QObjectMethod::callInternal (this=<optimized out>, thisObject=<optimized out>, argv=<optimized out>, argc=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:2117 #17 0x00007fe9f25fa581 in QV4::FunctionObject::call (argc=1, argv=0x7fe9c4269550, thisObject=0x7fe9c4269538, this=0x7ffdef4fb738) at jsruntime/qv4functionobject_p.h:202 #18 QV4::Runtime::CallPropertyLookup::call (engine=0x5600d6699500, base=..., index=<optimized out>, argv=0x7fe9c4269550, argc=1) at jsruntime/qv4runtime.cpp:1460 #19 0x00007fe9348c038f in ??? () #20 0x0000000000000000 in ??? () [Inferior 1 (process 46516) detached] -- You are receiving this mail because: You are watching all bug changes.
