Application: kmail (5.14.0 (20.04.0)) Qt Version: 5.14.1 Frameworks Version: 5.69.0 Operating System: Linux 5.5.11-Tom x86_64 Windowing system: X11 Distribution: "openSUSE Tumbleweed" -- Information about the crash: - What I was doing when the application crashed: I was trying to open it. Latest kmail on openSUSE Tumbleweed The crash can be reproduced sometimes. -- Backtrace: Application: KMail (kmail), signal: Segmentation fault Using host libthread_db library "/lib64/libthread_db.so.1". [Current thread is 1 (Thread 0x7fb6f70d3cc0 (LWP 3249))] Thread 20 (Thread 0x7fb6aa7fc700 (LWP 5112)): #0 0x00007fb706b8caaa in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fb700d98a86 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5 #2 0x00000000000002d4 in ?? () #3 0x00000000083c9c1e in ?? () #4 0x00000000000002b3 in ?? () #5 0x00000000083ca3ee in ?? () #6 0x0000000000000000 in ?? () Thread 19 (Thread 0x7fb677bbf700 (LWP 3644)): #0 0x00007fb708e16acf in poll () from /lib64/libc.so.6 #1 0x00007fb7060899de in ?? () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fb706089aff in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fb7093bfbeb in QEventDispatcherGlib::processEvents (this=0x7fb670000bf0, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #4 0x00007fb709367b7b in QEventLoop::exec (this=this@entry=0x7fb677bbe8e0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136 #5 0x00007fb7091925ce in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:118 #6 0x00007fb709193698 in QThreadPrivate::start (arg=0x55558382f3a0) at thread/qthread_unix.cpp:342 #7 0x00007fb706b85efa in start_thread () from /lib64/libpthread.so.0 #8 0x00007fb708e213bf in clone () from /lib64/libc.so.6 Thread 18 (Thread 0x7fb6d8afc700 (LWP 3549)): #0 0x00007fb706b8caaa in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fb700d98a86 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5 #2 0x00000000000002d4 in ?? () #3 0x00000000083ba29a in ?? () #4 0x00000000000002b3 in ?? () #5 0x00000000083baa6a in ?? () #6 0x0000000000000000 in ?? () Thread 17 (Thread 0x7fb68a4d1700 (LWP 3352)): #0 0x00007fb708e16acf in poll () from /lib64/libc.so.6 #1 0x00007fb7060899de in ?? () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fb706089aff in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fb7093bfbeb in QEventDispatcherGlib::processEvents (this=0x7fb67c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #4 0x00007fb709367b7b in QEventLoop::exec (this=this@entry=0x7fb68a4d08e0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136 #5 0x00007fb7091925ce in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:118 #6 0x00007fb709193698 in QThreadPrivate::start (arg=0x55558397fde0) at thread/qthread_unix.cpp:342 #7 0x00007fb706b85efa in start_thread () from /lib64/libpthread.so.0 #8 0x00007fb708e213bf in clone () from /lib64/libc.so.6 Thread 16 (Thread 0x7fb68b7fe700 (LWP 3311)): #0 0x00007fb706b8c795 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fb700d9898c in ?? () from /usr/lib64/libQt5WebEngineCore.so.5 #2 0x0000000000000000 in ?? () Thread 15 (Thread 0x7fb68bfff700 (LWP 3310)): #0 0x00007fb708e1259f in write () from /lib64/libc.so.6 #1 0x00007fb708da33b5 in _IO_file_write@@GLIBC_2.2.5 () from /lib64/libc.so.6 #2 0x00007fb708da2746 in new_do_write () from /lib64/libc.so.6 #3 0x00007fb708da3abe in __GI__IO_file_xsputn () from /lib64/libc.so.6 #4 0x00007fb708d8fa11 in buffered_vfprintf () from /lib64/libc.so.6 #5 0x00007fb708d8ca44 in __vfprintf_internal () from /lib64/libc.so.6 #6 0x00007fb708e2f5cf in __fprintf_chk () from /lib64/libc.so.6 #7 0x00007fb6fc905f2e in event_logv_ () from /usr/lib64/libevent-2.1.so.7 #8 0x00007fb6fc908b15 in event_warn () from /usr/lib64/libevent-2.1.so.7 #9 0x00007fb6fc90a678 in ?? () from /usr/lib64/libevent-2.1.so.7 #10 0x00007fb6fc91b086 in event_base_loop () from /usr/lib64/libevent-2.1.so.7 #11 0x00007fb700da055d in ?? () from /usr/lib64/libQt5WebEngineCore.so.5 #12 0x000100770000007c in ?? () #13 0x00007fb68bffe750 in ?? () #14 0x00007fb68bffe748 in ?? () #15 0x0000000000000000 in ?? () Thread 14 (Thread 0x7fb6a8e41700 (LWP 3294)): #0 0x00007fb706b8c795 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fb700d9898c in ?? () from /usr/lib64/libQt5WebEngineCore.so.5 #2 0x0000000000000000 in ?? () Thread 13 (Thread 0x7fb6a97fa700 (LWP 3292)): #0 0x00007fb706b8c795 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fb700d9898c in ?? () from /usr/lib64/libQt5WebEngineCore.so.5 #2 0x0000000000000000 in ?? () Thread 12 (Thread 0x7fb6a9ffb700 (LWP 3291)): #0 0x00007fb706b8c795 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fb700d9898c in ?? () from /usr/lib64/libQt5WebEngineCore.so.5 #2 0x0000000000000000 in ?? () Thread 11 (Thread 0x7fb6c53a5700 (LWP 3285)): #0 0x00007fb708da79c7 in __lll_lock_wait_private () from /lib64/libc.so.6 #1 0x00007fb708d8fb2e in buffered_vfprintf () from /lib64/libc.so.6 #2 0x00007fb708d8ca44 in __vfprintf_internal () from /lib64/libc.so.6 #3 0x00007fb708e2f5cf in __fprintf_chk () from /lib64/libc.so.6 #4 0x00007fb6fc905f2e in event_logv_ () from /usr/lib64/libevent-2.1.so.7 #5 0x00007fb6fc908b15 in event_warn () from /usr/lib64/libevent-2.1.so.7 #6 0x00007fb6fc90a678 in ?? () from /usr/lib64/libevent-2.1.so.7 #7 0x00007fb6fc91b086 in event_base_loop () from /usr/lib64/libevent-2.1.so.7 #8 0x00007fb700da055d in ?? () from /usr/lib64/libQt5WebEngineCore.so.5 #9 0x000100770000007c in ?? () #10 0x00007fb6c53a4730 in ?? () #11 0x00007fb6c53a4728 in ?? () #12 0x0000000000000000 in ?? () Thread 10 (Thread 0x7fb6c63a7700 (LWP 3283)): #0 0x00007fb708da79c7 in __lll_lock_wait_private () from /lib64/libc.so.6 #1 0x00007fb708d8fb2e in buffered_vfprintf () from /lib64/libc.so.6 #2 0x00007fb708d8ca44 in __vfprintf_internal () from /lib64/libc.so.6 #3 0x00007fb708e2f5cf in __fprintf_chk () from /lib64/libc.so.6 #4 0x00007fb6fc905f2e in event_logv_ () from /usr/lib64/libevent-2.1.so.7 #5 0x00007fb6fc908b15 in event_warn () from /usr/lib64/libevent-2.1.so.7 #6 0x00007fb6fc90a678 in ?? () from /usr/lib64/libevent-2.1.so.7 #7 0x00007fb6fc91b086 in event_base_loop () from /usr/lib64/libevent-2.1.so.7 #8 0x00007fb700da055d in ?? () from /usr/lib64/libQt5WebEngineCore.so.5 #9 0x00017fb6c63a6808 in ?? () #10 0x00007fb6c63a6730 in ?? () #11 0x00007fb6c63a6728 in ?? () #12 0x00000000294c8074 in ?? () #13 0x00007fb6c63a6808 in ?? () #14 0x00000000b0dd84d1 in ?? () #15 0x0000000000000b97 in ?? () #16 0x000000000004b111 in ?? () #17 0x0000000000000000 in ?? () Thread 9 (Thread 0x7fb6d9528700 (LWP 3265)): #0 0x00007fb708e16acf in poll () from /lib64/libc.so.6 #1 0x00007fb7060899de in ?? () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fb706089aff in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fb7093bfbeb in QEventDispatcherGlib::processEvents (this=0x7fb6cc000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #4 0x00007fb709367b7b in QEventLoop::exec (this=this@entry=0x7fb6d95278e0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136 #5 0x00007fb7091925ce in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:118 #6 0x00007fb709193698 in QThreadPrivate::start (arg=0x55557e1c3bf0) at thread/qthread_unix.cpp:342 #7 0x00007fb706b85efa in start_thread () from /lib64/libpthread.so.0 #8 0x00007fb708e213bf in clone () from /lib64/libc.so.6 Thread 8 (Thread 0x7fb6d9d29700 (LWP 3264)): #0 0x00007fb706087a20 in ?? () from /usr/lib64/libglib-2.0.so.0 #1 0x00007fb706088ea3 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fb70608990b in ?? () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fb706089aff in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #4 0x00007fb7093bfbeb in QEventDispatcherGlib::processEvents (this=0x7fb6c8000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #5 0x00007fb709367b7b in QEventLoop::exec (this=this@entry=0x7fb6d9d288e0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136 #6 0x00007fb7091925ce in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:118 #7 0x00007fb709193698 in QThreadPrivate::start (arg=0x55557e1da510) at thread/qthread_unix.cpp:342 #8 0x00007fb706b85efa in start_thread () from /lib64/libpthread.so.0 #9 0x00007fb708e213bf in clone () from /lib64/libc.so.6 Thread 7 (Thread 0x7fb6da52a700 (LWP 3263)): #0 0x00007fb708e16acf in poll () from /lib64/libc.so.6 #1 0x00007fb7060899de in ?? () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fb706089aff in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fb7093bfbeb in QEventDispatcherGlib::processEvents (this=0x7fb6d0000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #4 0x00007fb709367b7b in QEventLoop::exec (this=this@entry=0x7fb6da5298e0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136 #5 0x00007fb7091925ce in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:118 #6 0x00007fb709193698 in QThreadPrivate::start (arg=0x55557e11c870) at thread/qthread_unix.cpp:342 #7 0x00007fb706b85efa in start_thread () from /lib64/libpthread.so.0 #8 0x00007fb708e213bf in clone () from /lib64/libc.so.6 Thread 6 (Thread 0x7fb6ed27e700 (LWP 3262)): #0 0x00007fb706b8c795 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fb6eefc081b in ?? () from /usr/lib64/dri/i965_dri.so #2 0x00007fb6eefc0697 in ?? () from /usr/lib64/dri/i965_dri.so #3 0x00007fb706b85efa in start_thread () from /lib64/libpthread.so.0 #4 0x00007fb708e213bf in clone () from /lib64/libc.so.6 Thread 5 (Thread 0x7fb6eda7f700 (LWP 3261)): #0 0x00007fb706b8c795 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fb6eefc081b in ?? () from /usr/lib64/dri/i965_dri.so #2 0x00007fb6eefc0697 in ?? () from /usr/lib64/dri/i965_dri.so #3 0x00007fb706b85efa in start_thread () from /lib64/libpthread.so.0 #4 0x00007fb708e213bf in clone () from /lib64/libc.so.6 Thread 4 (Thread 0x7fb6ee280700 (LWP 3260)): #0 0x00007fb706b8c795 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fb6eefc081b in ?? () from /usr/lib64/dri/i965_dri.so #2 0x00007fb6eefc0697 in ?? () from /usr/lib64/dri/i965_dri.so #3 0x00007fb706b85efa in start_thread () from /lib64/libpthread.so.0 #4 0x00007fb708e213bf in clone () from /lib64/libc.so.6 Thread 3 (Thread 0x7fb6eea81700 (LWP 3259)): #0 0x00007fb706b8c795 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fb6eefc081b in ?? () from /usr/lib64/dri/i965_dri.so #2 0x00007fb6eefc0697 in ?? () from /usr/lib64/dri/i965_dri.so #3 0x00007fb706b85efa in start_thread () from /lib64/libpthread.so.0 #4 0x00007fb708e213bf in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7fb6effff700 (LWP 3257)): #0 0x00007fb708e16acf in poll () from /lib64/libc.so.6 #1 0x00007fb7060899de in ?? () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fb706089aff in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fb7093bfbeb in QEventDispatcherGlib::processEvents (this=0x7fb6e8000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425 #4 0x00007fb709367b7b in QEventLoop::exec (this=this@entry=0x7fb6efffe8b0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136 #5 0x00007fb7091925ce in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:118 #6 0x00007fb7089bf507 in ?? () from /usr/lib64/libQt5DBus.so.5 #7 0x00007fb709193698 in QThreadPrivate::start (arg=0x7fb708a41da0) at thread/qthread_unix.cpp:342 #8 0x00007fb706b85efa in start_thread () from /lib64/libpthread.so.0 #9 0x00007fb708e213bf in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7fb6f70d3cc0 (LWP 3249)): [KCrash Handler] #6 std::__atomic_base<int>::load (__m=std::memory_order_relaxed, this=<error reading variable: Cannot access memory at address 0x121>) at /usr/include/c++/9/bits/atomic_base.h:413 #7 QAtomicOps<int>::loadRelaxed<int> (_q_value=<error reading variable: Cannot access memory at address 0x121>) at ../../include/QtCore/../../src/corelib/thread/qatomic_cxx11.h:239 #8 QBasicAtomicInteger<int>::loadRelaxed (this=<error reading variable: Cannot access memory at address 0x121>) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:107 #9 QtPrivate::RefCount::isShared (this=<error reading variable: Cannot access memory at address 0x121>) at ../../include/QtCore/../../src/corelib/tools/qrefcount.h:101 #10 QList<QWidget*>::append (this=0x121, t=@0x7ffdf3f77240: 0x55557e498860) at ../../include/QtCore/../../src/corelib/tools/qlist.h:611 #11 0x00007fb709eac360 in QWidget::insertAction (this=this@entry=0x55557e498860, before=<optimized out>, before@entry=0x0, action=0x55557e3e02c0) at kernel/qwidget.cpp:3134 #12 0x00007fb708c48a3b in KXMLGUI::ActionList::plug (index=<optimized out>, container=0x55557e498860, this=0x55557e482aa0) at /usr/src/debug/kxmlgui-5.69.0-1.1.x86_64/src/kxmlguifactory_p.cpp:45 #13 KXMLGUI::ContainerNode::plugActionList (mergingIdxIt=..., state=..., this=0x55557e4b8520) at /usr/src/debug/kxmlgui-5.69.0-1.1.x86_64/src/kxmlguifactory_p.cpp:234 #14 KXMLGUI::ContainerNode::plugActionList (this=0x55557e4b8520, state=...) at /usr/src/debug/kxmlgui-5.69.0-1.1.x86_64/src/kxmlguifactory_p.cpp:204 #15 0x00007fb708c48b01 in KXMLGUI::ContainerNode::plugActionList (this=0x55557e46f6b0, state=...) at /usr/src/debug/kxmlgui-5.69.0-1.1.x86_64/src/kxmlguifactory_p.cpp:208 #16 0x00007fb708c48b01 in KXMLGUI::ContainerNode::plugActionList (this=0x555582a0ae60, state=...) at /usr/src/debug/kxmlgui-5.69.0-1.1.x86_64/src/kxmlguifactory_p.cpp:208 #17 0x00007fb708c4f354 in KXMLGUIFactory::plugActionList (this=0x55557e488ae0, client=0x5555837cabd0, name=..., actionList=...) at /usr/src/debug/kxmlgui-5.69.0-1.1.x86_64/src/kxmlguifactory.cpp:574 #18 0x00007fb707d20175 in PimCommon::PluginInterface::initializePluginActions (this=<optimized out>, prefix=..., guiClient=0x5555837cabd0) at /usr/src/debug/pimcommon-20.04.0-1.1.x86_64/src/pimcommonakonadi/genericplugins/plugininterface.cpp:168 #19 0x00007fb70a6bc8f0 in KMMainWidget::initializePluginActions (this=0x55557e524e50) at /usr/src/debug/kmail-20.04.0-1.1.x86_64/src/kmmainwidget.cpp:4217 #20 0x00007fb70a6c2104 in KMMainWidget::slotShowStartupFolder (this=0x55557e524e50) at /usr/src/debug/kmail-20.04.0-1.1.x86_64/src/kmmainwidget.cpp:4121 #21 0x00007fb7093959f9 in QObject::event (this=this@entry=0x55557e524e50, e=e@entry=0x55557e36eae0) at kernel/qobject.cpp:1339 #22 0x00007fb709eb5555 in QWidget::event (this=0x55557e524e50, event=0x55557e36eae0) at kernel/qwidget.cpp:9092 #23 0x00007fb709e72caf in QApplicationPrivate::notify_helper (this=this@entry=0x55557dd233c0, receiver=receiver@entry=0x55557e524e50, e=e@entry=0x55557e36eae0) at kernel/qapplication.cpp:3684 #24 0x00007fb709e7bdf0 in QApplication::notify (this=0x7ffdf3f781c0, receiver=0x55557e524e50, e=0x55557e36eae0) at kernel/qapplication.cpp:3430 #25 0x00007fb709368fe2 in QCoreApplication::notifyInternal2 (receiver=0x55557e524e50, event=0x55557e36eae0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:153 #26 0x00007fb70936b774 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55557dcd5390) at kernel/qcoreapplication.cpp:1832 #27 0x00007fb7093c0553 in postEventSourceDispatch (s=0x55557dde88f0) at kernel/qeventdispatcher_glib.cpp:277 #28 0x00007fb7060896e8 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0 #29 0x00007fb706089a70 in ?? () from /usr/lib64/libglib-2.0.so.0 #30 0x00007fb706089aff in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #31 0x00007fb7093bfbce in QEventDispatcherGlib::processEvents (this=0x55557dde9b00, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #32 0x00007fb709367b7b in QEventLoop::exec (this=this@entry=0x7ffdf3f77ca0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136 #33 0x00007fb70936f952 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:118 #34 0x000055557cae7386 in main (argc=<optimized out>, argv=<optimized out>) at /usr/include/qt5/QtCore/qcoreapplication.h:116 [Inferior 1 (process 3249) detached] The reporter indicates this bug may be a duplicate of or related to bug 401739. Possible duplicates by query: bug 420495, bug 419785, bug 418784, bug 417542, bug 415576. Reported using DrKonqi
Created attachment 131390 [details] New crash information added by DrKonqi kmail (5.14.3 (20.04.3)) using Qt 5.14.2 - What I was doing when the application crashed: Restarted KMail after it was stuck syncing mailboxes and after I had restarted akonadi. -- Backtrace (Reduced): #4 0x00007f4d9b539447 in std::__atomic_base<int>::load(std::memory_order) const (__m=std::memory_order_relaxed, this=<optimized out>) at /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/include/g++-v9/bits/atomic_base.h:413 #5 QAtomicOps<int>::loadRelaxed<int>(std::atomic<int> const&) (_q_value=...) at /var/tmp/portage/dev-qt/qtwidgets-5.14.2/work/qtbase-everywhere-src-5.14.2/src/corelib/thread/qatomic_cxx11.h:239 #6 QBasicAtomicInteger<int>::loadRelaxed() const (this=<optimized out>) at /var/tmp/portage/dev-qt/qtwidgets-5.14.2/work/qtbase-everywhere-src-5.14.2/src/corelib/thread/qbasicatomic.h:107 #7 QtPrivate::RefCount::isShared() const (this=<optimized out>) at /var/tmp/portage/dev-qt/qtwidgets-5.14.2/work/qtbase-everywhere-src-5.14.2/src/corelib/tools/qrefcount.h:101 #8 QList<QWidget*>::append(QWidget* const&) (this=0x7f4d7cbe0c70, t=@0x7ffe0a526430: 0x55fb922c7460) at /var/tmp/portage/dev-qt/qtwidgets-5.14.2/work/qtbase-everywhere-src-5.14.2/src/corelib/tools/qlist.h:611
Created attachment 148238 [details] New crash information added by DrKonqi kmail (5.19.3 (21.12.3)) using Qt 5.15.3 - What I was doing when the application crashed: Trying to restart kmail after it had crashed on quitting after it was stuck loading the contents of a folder. This crash report's backtrace contains more details and is for a recent version of kmail/qt. -- Backtrace (Reduced): #8 QList<QWidget*>::append(QWidget* const&) (this=0x600000101, t=@0x7fff63999230: 0x5b36679e1ed0) at /var/tmp/portage/dev-qt/qtwidgets-5.15.3/work/qtbase-everywhere-src-5.15.3/include/QtCore/../../src/corelib/tools/qlist.h:622 #9 0x00007f56ed6b6149 in QWidget::insertAction(QAction*, QAction*) (this=this@entry=0x5b36679e1ed0, before=<optimized out>, before@entry=0x0, action=0x5b36679d0750) at /var/tmp/portage/dev-qt/qtwidgets-5.15.3/work/qtbase-everywhere-src-5.15.3/src/widgets/kernel/qwidget.cpp:3129 #10 0x00007f56ec56acc2 in KXMLGUI::ActionList::plug(QWidget*, int) const (this=this@entry=0x5b36679b1fc0, container=0x5b36679e1ed0, index=<optimized out>) at /var/tmp/portage/kde-frameworks/kxmlgui-5.90.0/work/kxmlgui-5.90.0/src/kxmlguifactory_p.cpp:33 #11 0x00007f56ec56f104 in KXMLGUI::ContainerNode::plugActionList(KXMLGUI::BuildState&, QTypedArrayData<KXMLGUI::MergingIndex>::iterator const&) (this=this@entry=0x5b3667c6e130, state=..., mergingIdxIt=...) at /var/tmp/portage/kde-frameworks/kxmlgui-5.90.0/work/kxmlgui-5.90.0/src/kxmlguifactory_p.cpp:230 #12 0x00007f56ec56f33e in KXMLGUI::ContainerNode::plugActionList(KXMLGUI::BuildState&) (this=0x5b3667c6e130, state=...) at /var/tmp/portage/kde-frameworks/kxmlgui-5.90.0/work/kxmlgui-5.90.0/src/kxmlguifactory_p.cpp:202