Bug 402725

Summary: Plasma Crash while doing nothing
Product: [Plasma] plasmashell Reporter: Joachim Mairböck <j.mairboeck>
Component: generic-crashAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED WORKSFORME    
Severity: crash CC: justin.zobel
Priority: NOR Keywords: drkonqi
Version: 5.12.6   
Target Milestone: 1.0   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed In:

Description Joachim Mairböck 2018-12-31 09:55:01 UTC 
Application: plasmashell (5.12.6)

Qt Version: 5.9.4
Frameworks Version: 5.45.0
Operating System: Linux 4.12.14-lp150.12.28-default x86_64
Distribution: "openSUSE Leap 15.0"

-- Information about the crash:
- What I was doing when the application crashed:
Plasma just crashed while not doing anything. I was not using the computer for a few minutes. When I came back, I saw this crash. I didn't lock the computer.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
27	  return SYSCALL_CANCEL (nanosleep, requested_time, remaining);
[Current thread is 1 (Thread 0x7fd1cecb81c0 (LWP 2822))]

Thread 14 (Thread 0x7fd0bd0f7700 (LWP 5352)):
#0  0x00007fd1c808207b in __GI___poll (fds=fds@entry=0x7fd0b8001b20, nfds=nfds@entry=3, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd1be058831 in poll (__timeout=-1, __nfds=3, __fds=0x7fd0b8001b20) at /usr/include/bits/poll2.h:46
#2  0x00007fd1be058831 in poll_func (ufds=0x7fd0b8001b20, nfds=3, timeout=-1, userdata=0x55a3fec4b320) at pulse/thread-mainloop.c:69
#3  0x00007fd1be04a1f0 in pa_mainloop_poll (m=m@entry=0x55a3ff332650) at pulse/mainloop.c:844
#4  0x00007fd1be04a880 in pa_mainloop_iterate (m=0x55a3ff332650, block=<optimized out>, retval=0x0) at pulse/mainloop.c:926
#5  0x00007fd1be04a910 in pa_mainloop_run (m=0x55a3ff332650, retval=retval@entry=0x0) at pulse/mainloop.c:944
#6  0x00007fd1be058779 in thread (userdata=0x55a3ff049960) at pulse/thread-mainloop.c:100
#7  0x00007fd1bd7e1438 in internal_thread_func (userdata=0x55a3fd22def0) at pulsecore/thread-posix.c:81
#8  0x00007fd1c793b559 in start_thread (arg=0x7fd0bd0f7700) at pthread_create.c:465
#9  0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fd0c97bf700 (LWP 5351)):
#0  0x00007fd1c296fc20 in g_main_context_check (context=context@entry=0x7fd0c4003040, max_priority=2147483647, fds=fds@entry=0x7fd0c4000b10, n_fds=n_fds@entry=1) at gmain.c:3755
#1  0x00007fd1c2970170 in g_main_context_iterate (context=context@entry=0x7fd0c4003040, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3865
#2  0x00007fd1c29702dc in g_main_context_iteration (context=0x7fd0c4003040, may_block=may_block@entry=1) at gmain.c:3929
#3  0x00007fd1c89b1c0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd0c4004f20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fd1c895a09a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd0c97bec70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fd1c87894da in QThread::exec() (this=this@entry=0x55a3fe673110) at thread/qthread.cpp:515
#6  0x00007fd1cc036cb5 in QQmlThreadPrivate::run() (this=0x55a3fe673110) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/qml/ftw/qqmlthread.cpp:147
#7  0x00007fd1c878e0ce in QThreadPrivate::start(void*) (arg=0x55a3fe673110) at thread/qthread_unix.cpp:368
#8  0x00007fd1c793b559 in start_thread (arg=0x7fd0c97bf700) at pthread_create.c:465
#9  0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fd0e4f0a700 (LWP 3658)):
#0  0x00007fd1c29b5dc9 in g_mutex_lock (mutex=mutex@entry=0x7fd0d8000be0) at gthread-posix.c:1336
#1  0x00007fd1c29702c8 in g_main_context_iteration (context=0x7fd0d8000be0, may_block=may_block@entry=1) at gmain.c:3928
#2  0x00007fd1c89b1c0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd0d8000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#3  0x00007fd1c895a09a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd0e4f09c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#4  0x00007fd1c87894da in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:515
#5  0x00007fd1c878e0ce in QThreadPrivate::start(void*) (arg=0x55a3fc7c4dc0) at thread/qthread_unix.cpp:368
#6  0x00007fd1c793b559 in start_thread (arg=0x7fd0e4f0a700) at pthread_create.c:465
#7  0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fd0e7be3700 (LWP 3651)):
#0  0x00007fd1c808207b in __GI___poll (fds=0x7fd0e0002de0, nfds=1, timeout=324537) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd1c29701c9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fd0e0002de0, timeout=<optimized out>, context=0x7fd0e0000be0) at gmain.c:4169
#2  0x00007fd1c29701c9 in g_main_context_iterate (context=context@entry=0x7fd0e0000be0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3863
#3  0x00007fd1c29702dc in g_main_context_iteration (context=0x7fd0e0000be0, may_block=may_block@entry=1) at gmain.c:3929
#4  0x00007fd1c89b1c0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd0e0000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd1c895a09a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd0e7be2c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fd1c87894da in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:515
#7  0x00007fd0ea4b3887 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#8  0x00007fd1c878e0ce in QThreadPrivate::start(void*) (arg=0x55a3fc6ecb80) at thread/qthread_unix.cpp:368
#9  0x00007fd1c793b559 in start_thread (arg=0x7fd0e7be3700) at pthread_create.c:465
#10 0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fd0f0f75700 (LWP 3314)):
#0  0x00007fd1c808207b in __GI___poll (fds=0x7fd0ec0029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd1c29701c9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fd0ec0029e0, timeout=<optimized out>, context=0x7fd0ec000be0) at gmain.c:4169
#2  0x00007fd1c29701c9 in g_main_context_iterate (context=context@entry=0x7fd0ec000be0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3863
#3  0x00007fd1c29702dc in g_main_context_iteration (context=0x7fd0ec000be0, may_block=may_block@entry=1) at gmain.c:3929
#4  0x00007fd1c89b1c0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd0ec000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd1c895a09a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd0f0f746d0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fd0f6b05cca in Akonadi::SessionThread::waitForSocketData() (this=0x55a3fb97aec0) at /usr/src/debug/akonadi-server-18.04.3-lp150.150.1.x86_64/src/core/sessionthread.cpp:167
#7  0x00007fd1c89954b7 in QtPrivate::QSlotObjectBase::call(QObject*, void**) (a=0x7fd0f0f74798, r=<optimized out>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
#8  0x00007fd1c89954b7 in QSingleShotTimer::timerEvent(QTimerEvent*) (this=0x7fd0ec004ba0) at kernel/qtimer.cpp:318
#9  0x00007fd1c89899eb in QObject::event(QEvent*) (this=0x7fd0ec004ba0, e=<optimized out>) at kernel/qobject.cpp:1268
#10 0x00007fd1c9b3ee8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55a3faca7a00, receiver=receiver@entry=0x7fd0ec004ba0, e=e@entry=0x7fd0f0f74a50) at kernel/qapplication.cpp:3723
#11 0x00007fd1c9b46244 in QApplication::notify(QObject*, QEvent*) (this=0x7ffee5d1c990, receiver=0x7fd0ec004ba0, e=0x7fd0f0f74a50) at kernel/qapplication.cpp:3482
#12 0x00007fd1c895ba88 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x7fd0ec004ba0, event=event@entry=0x7fd0f0f74a50) at kernel/qcoreapplication.cpp:1016
#13 0x00007fd1c89b119e in QCoreApplication::sendEvent(QObject*, QEvent*) (event=0x7fd0f0f74a50, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
#14 0x00007fd1c89b119e in QTimerInfoList::activateTimers() (this=this@entry=0x7fd0ec0048e0) at kernel/qtimerinfo_unix.cpp:643
#15 0x00007fd1c89b18b1 in timerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=source@entry=0x7fd0ec004880) at kernel/qeventdispatcher_glib.cpp:182
#16 0x00007fd1c2970017 in g_main_dispatch (context=0x7fd0ec000be0) at gmain.c:3142
#17 0x00007fd1c2970017 in g_main_context_dispatch (context=context@entry=0x7fd0ec000be0) at gmain.c:3795
#18 0x00007fd1c2970250 in g_main_context_iterate (context=context@entry=0x7fd0ec000be0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3868
#19 0x00007fd1c29702dc in g_main_context_iteration (context=0x7fd0ec000be0, may_block=may_block@entry=1) at gmain.c:3929
#20 0x00007fd1c89b1bef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd0ec000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#21 0x00007fd1c895a09a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd0f0f74c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#22 0x00007fd1c87894da in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:515
#23 0x00007fd1c878e0ce in QThreadPrivate::start(void*) (arg=0x55a3fb979c50) at thread/qthread_unix.cpp:368
#24 0x00007fd1c793b559 in start_thread (arg=0x7fd0f0f75700) at pthread_create.c:465
#25 0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fd107349700 (LWP 3196)):
#0  0x00007fd1c29700ac in g_main_context_iterate (context=context@entry=0x7fd100000be0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3875
#1  0x00007fd1c29702dc in g_main_context_iteration (context=0x7fd100000be0, may_block=may_block@entry=1) at gmain.c:3929
#2  0x00007fd1c89b1c0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd100000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#3  0x00007fd1c895a09a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd107348c30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#4  0x00007fd1c87894da in QThread::exec() (this=this@entry=0x55a3fb6bd680) at thread/qthread.cpp:515
#5  0x00007fd1cc485cf2 in QQuickPixmapReader::run() (this=0x55a3fb6bd680) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/quick/util/qquickpixmapcache.cpp:868
#6  0x00007fd1c878e0ce in QThreadPrivate::start(void*) (arg=0x55a3fb6bd680) at thread/qthread_unix.cpp:368
#7  0x00007fd1c793b559 in start_thread (arg=0x7fd107349700) at pthread_create.c:465
#8  0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fd113fff700 (LWP 3187)):
#0  0x00007fd1c794189d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a3fb4b0640) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd1c794189d in __pthread_cond_wait_common (abstime=0x0, mutex=0x55a3fb4b05f0, cond=0x55a3fb4b0618) at pthread_cond_wait.c:502
#2  0x00007fd1c794189d in __pthread_cond_wait (cond=0x55a3fb4b0618, mutex=0x55a3fb4b05f0) at pthread_cond_wait.c:655
#3  0x00007fd1a13c0ceb in cnd_wait (mtx=0x55a3fb4b05f0, cond=0x55a3fb4b0618) at ../../include/c11/threads_posix.h:155
#4  0x00007fd1a13c0ceb in util_queue_thread_func (input=input@entry=0x55a3fb54bba0) at u_queue.c:255
#5  0x00007fd1a13c0a17 in impl_thrd_routine (p=<optimized out>) at ../../include/c11/threads_posix.h:87
#6  0x00007fd1c793b559 in start_thread (arg=0x7fd113fff700) at pthread_create.c:465
#7  0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fd118dab700 (LWP 3186)):
#0  0x00007fd1c794189d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a3fbae733c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd1c794189d in __pthread_cond_wait_common (abstime=0x0, mutex=0x55a3fbae72e8, cond=0x55a3fbae7310) at pthread_cond_wait.c:502
#2  0x00007fd1c794189d in __pthread_cond_wait (cond=0x55a3fbae7310, mutex=0x55a3fbae72e8) at pthread_cond_wait.c:655
#3  0x00007fd1a13c0ceb in cnd_wait (mtx=0x55a3fbae72e8, cond=0x55a3fbae7310) at ../../include/c11/threads_posix.h:155
#4  0x00007fd1a13c0ceb in util_queue_thread_func (input=input@entry=0x55a3fb5f4100) at u_queue.c:255
#5  0x00007fd1a13c0a17 in impl_thrd_routine (p=<optimized out>) at ../../include/c11/threads_posix.h:87
#6  0x00007fd1c793b559 in start_thread (arg=0x7fd118dab700) at pthread_create.c:465
#7  0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fd1ac927700 (LWP 3165)):
#0  0x00007fd1c794189d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fd1ce688fb8 <QTWTF::pageheap_memory+57592>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd1c794189d in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fd1ce688f68 <QTWTF::pageheap_memory+57512>, cond=0x7fd1ce688f90 <QTWTF::pageheap_memory+57552>) at pthread_cond_wait.c:502
#2  0x00007fd1c794189d in __pthread_cond_wait (cond=0x7fd1ce688f90 <QTWTF::pageheap_memory+57552>, mutex=0x7fd1ce688f68 <QTWTF::pageheap_memory+57512>) at pthread_cond_wait.c:655
#3  0x00007fd1ce3935e4 in QTWTF::TCMalloc_PageHeap::scavengerThread() (this=0x7fd1ce67aec0 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x00007fd1ce393629 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x00007fd1c793b559 in start_thread (arg=0x7fd1ac927700) at pthread_create.c:465
#6  0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fd1aebbd700 (LWP 3140)):
#0  0x00007fd1c808207b in __GI___poll (fds=0x7fd19c002de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd1c29701c9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fd19c002de0, timeout=<optimized out>, context=0x7fd19c000be0) at gmain.c:4169
#2  0x00007fd1c29701c9 in g_main_context_iterate (context=context@entry=0x7fd19c000be0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3863
#3  0x00007fd1c29702dc in g_main_context_iteration (context=0x7fd19c000be0, may_block=may_block@entry=1) at gmain.c:3929
#4  0x00007fd1c89b1c0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd19c000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd1c895a09a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd1aebbcc70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fd1c87894da in QThread::exec() (this=this@entry=0x55a3faf13bc0) at thread/qthread.cpp:515
#7  0x00007fd1cc036cb5 in QQmlThreadPrivate::run() (this=0x55a3faf13bc0) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/qml/ftw/qqmlthread.cpp:147
#8  0x00007fd1c878e0ce in QThreadPrivate::start(void*) (arg=0x55a3faf13bc0) at thread/qthread_unix.cpp:368
#9  0x00007fd1c793b559 in start_thread (arg=0x7fd1aebbd700) at pthread_create.c:465
#10 0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fd1affff700 (LWP 2917)):
#0  0x00007fd1c29b5de4 in g_mutex_unlock (mutex=0x7fd1a4000be0) at gthread-posix.c:1348
#1  0x00007fd1c296fbe1 in g_main_context_check (context=context@entry=0x7fd1a4000be0, max_priority=2147483647, fds=fds@entry=0x7fd1a40029e0, n_fds=n_fds@entry=1) at gmain.c:3699
#2  0x00007fd1c2970170 in g_main_context_iterate (context=context@entry=0x7fd1a4000be0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3865
#3  0x00007fd1c29702dc in g_main_context_iteration (context=0x7fd1a4000be0, may_block=may_block@entry=1) at gmain.c:3929
#4  0x00007fd1c89b1c0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd1a4000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd1c895a09a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd1afffec70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fd1c87894da in QThread::exec() (this=this@entry=0x55a3fadcfff0) at thread/qthread.cpp:515
#7  0x00007fd1cc036cb5 in QQmlThreadPrivate::run() (this=0x55a3fadcfff0) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/qml/ftw/qqmlthread.cpp:147
#8  0x00007fd1c878e0ce in QThreadPrivate::start(void*) (arg=0x55a3fadcfff0) at thread/qthread_unix.cpp:368
#9  0x00007fd1c793b559 in start_thread (arg=0x7fd1affff700) at pthread_create.c:465
#10 0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fd1b6690700 (LWP 2842)):
#0  0x00007fd1c807db68 in __GI___libc_read (fd=7, buf=buf@entry=0x7fd1b668fa60, nbytes=nbytes@entry=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fd1c29b4a90 in read (__nbytes=16, __buf=0x7fd1b668fa60, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  0x00007fd1c29b4a90 in g_wakeup_acknowledge (wakeup=0x55a3facff5b0) at gwakeup.c:210
#3  0x00007fd1c296fcb7 in g_main_context_check (context=context@entry=0x7fd1a8000be0, max_priority=2147483647, fds=fds@entry=0x7fd1a80308e0, n_fds=n_fds@entry=1) at gmain.c:3646
#4  0x00007fd1c2970170 in g_main_context_iterate (context=context@entry=0x7fd1a8000be0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3865
#5  0x00007fd1c29702dc in g_main_context_iteration (context=0x7fd1a8000be0, may_block=may_block@entry=1) at gmain.c:3929
#6  0x00007fd1c89b1c0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd1a8000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007fd1c895a09a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd1b668fc60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#8  0x00007fd1c87894da in QThread::exec() (this=this@entry=0x7fd1ca495d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:515
#9  0x00007fd1ca225985 in QDBusConnectionManager::run() (this=0x7fd1ca495d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#10 0x00007fd1c878e0ce in QThreadPrivate::start(void*) (arg=0x7fd1ca495d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:368
#11 0x00007fd1c793b559 in start_thread (arg=0x7fd1b6690700) at pthread_create.c:465
#12 0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fd1b87b4700 (LWP 2831)):
#0  0x00007fd1c808207b in __GI___poll (fds=fds@entry=0x7fd1b87b3b88, nfds=nfds@entry=1, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd1cd083387 in poll (__timeout=-1, __nfds=1, __fds=0x7fd1b87b3b88) at /usr/include/bits/poll2.h:46
#2  0x00007fd1cd083387 in _xcb_conn_wait (c=c@entry=0x55a3facb8360, cond=cond@entry=0x55a3facb83a0, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:479
#3  0x00007fd1cd084fba in xcb_wait_for_event (c=0x55a3facb8360) at xcb_in.c:697
#4  0x00007fd1bab2a029 in QXcbEventReader::run() (this=0x55a3faccbd90) at qxcbconnection.cpp:1330
#5  0x00007fd1c878e0ce in QThreadPrivate::start(void*) (arg=0x55a3faccbd90) at thread/qthread_unix.cpp:368
#6  0x00007fd1c793b559 in start_thread (arg=0x7fd1b87b4700) at pthread_create.c:465
#7  0x00007fd1c808c81f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fd1cecb81c0 (LWP 2822)):
[KCrash Handler]
#6  0x00007fd0ab8a6980 in  ()
#7  0x00007fd1cbefb617 in drainMarkStack (markBase=<optimized out>, engine=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/jsruntime/qv4persistent.cpp:223
#8  0x00007fd1cbefb617 in QV4::PersistentValueStorage::mark(QV4::ExecutionEngine*) (this=<optimized out>, e=0x55a3faf10620) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/jsruntime/qv4persistent.cpp:237
#9  0x00007fd1cbe1012d in QV4::MemoryManager::mark() (this=this@entry=0x55a3faf10b00) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/memory/qv4mm.cpp:807
#10 0x00007fd1cbe119e9 in QV4::MemoryManager::runGC() (this=0x55a3faf10b00) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/memory/qv4mm.cpp:947
#11 0x00007fd1cbe13788 in QV4::MemoryManager::allocString(unsigned long) (this=this@entry=0x55a3faf10b00, unmanagedSize=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/memory/qv4mm.cpp:709
#12 0x00007fd1cbeeb63b in QV4::MemoryManager::allocWithStringData<QV4::String, QString>(unsigned long, QString) (arg1=..., unmanagedSize=<optimized out>, this=0x55a3faf10b00) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/include/QtQml/5.9.4/QtQml/private/../../../../../src/qml/memory/qv4mm_p.h:252
#13 0x00007fd1cbeeb63b in QV4::ExecutionEngine::newString(QString const&) (this=this@entry=0x55a3faf10620, s=...) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/jsruntime/qv4engine.cpp:558
#14 0x00007fd1cbef141b in QV4::ExecutionEngine::fromVariant(QVariant const&) (this=this@entry=0x55a3faf10620, variant=...) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/jsruntime/qv4engine.cpp:1338
#15 0x00007fd1cbef15bb in objectFromVariantMap (map=..., e=0x55a3faf10620) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/jsruntime/qv4engine.cpp:1305
#16 0x00007fd1cbef15bb in QV4::ExecutionEngine::fromVariant(QVariant const&) (this=this@entry=0x55a3faf10620, variant=...) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/jsruntime/qv4engine.cpp:1375
#17 0x00007fd1cbf7091e in loadProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData const&) (v4=0x55a3faf10620, object=0x55a3fc390d30, property=...) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/jsruntime/qv4qobjectwrapper.cpp:173
#18 0x00007fd1cbf71630 in QV4::QObjectWrapper::getQmlProperty(QQmlContextData*, QV4::String*, QV4::QObjectWrapper::RevisionMode, bool*, bool) const (this=0x7fd1ad7be4a8, qmlContext=0x55a400f7a470, name=0x7fd1ad7be4b0, revisionMode=QV4::QObjectWrapper::IgnoreRevision, hasProperty=0x0, includeImports=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/jsruntime/qv4qobjectwrapper.cpp:279
#19 0x00007fd1cbf878cb in QV4::Object::get(QV4::String*, bool*) const (hasProperty=0x0, name=<optimized out>, this=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/jsruntime/qv4object_p.h:344
#20 0x00007fd1cbf878cb in QV4::getElementFallback(QV4::ExecutionEngine*, QV4::Value const&, QV4::Value const&) (engine=0x55a3faf10620, object=..., index=...) at /usr/src/debug/libqt5-qtdeclarative-5.9.4-lp150.1.6.x86_64/src/qml/jsruntime/qv4runtime.cpp:656
#21 0x00007fd0f00aa4b8 in  ()
#22 0x00007ffee5d1a308 in  ()
#23 0x000055a3ffc92630 in  ()
#24 0x000055a3fcc7cdf0 in  ()
#25 0x00007fd1ad7be3f8 in  ()
#26 0x0000000000000000 in  ()
[Inferior 1 (process 2822) detached]

Reported using DrKonqi
Comment 1 Joachim Mairböck 2018-12-31 10:00:49 UTC 
Maybe it was because KGet finished its downloads in the background.
Comment 2 Justin Zobel 2020-12-06 21:12:46 UTC 
Thank you for the report.

As it has been a while since this was reported, can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved.

I have set the bug status to "needsinfo" pending your response, please change back to "reported" or "resolved/worksforme" when you respond, thank you.
Comment 3 Bug Janitor Service 2020-12-21 04:34:38 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be 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

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 4 Bug Janitor Service 2021-01-05 04:34:06 UTC 
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!