Bug 420171

Application: ark (19.12.3)

Qt Version: 5.14.1
Frameworks Version: 5.68.0
Operating System: Linux 5.6.2-1-default x86_64
Windowing system: X11
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
Ark crash at open firefox nightly package (.tar.bz2)

The crash can be reproduced sometimes.

-- Backtrace:
Application: Ark (ark), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f99f709a800 (LWP 13699))]

Thread 7 (Thread 0x7f99e29ae700 (LWP 13713)):
#0  0x00007f99f84c6795 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f99ee41a2db in ?? () from /usr/lib64/dri/nouveau_dri.so
#2  0x00007f99ee419a97 in ?? () from /usr/lib64/dri/nouveau_dri.so
#3  0x00007f99f84bfefa in start_thread () from /lib64/libpthread.so.0
#4  0x00007f99fab3e3bf in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f99e31af700 (LWP 13712)):
#0  0x00007f99f84c6795 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f99ee41a2db in ?? () from /usr/lib64/dri/nouveau_dri.so
#2  0x00007f99ee419a97 in ?? () from /usr/lib64/dri/nouveau_dri.so
#3  0x00007f99f84bfefa in start_thread () from /lib64/libpthread.so.0
#4  0x00007f99fab3e3bf in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f99ecde7700 (LWP 13711)):
#0  0x00007f99f84c6795 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f99ee41a2db in ?? () from /usr/lib64/dri/nouveau_dri.so
#2  0x00007f99ee419a97 in ?? () from /usr/lib64/dri/nouveau_dri.so
#3  0x00007f99f84bfefa in start_thread () from /lib64/libpthread.so.0
#4  0x00007f99fab3e3bf in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f99ed5e8700 (LWP 13710)):
#0  0x00007f99f84c6795 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f99ee41a2db in ?? () from /usr/lib64/dri/nouveau_dri.so
#2  0x00007f99ee419a97 in ?? () from /usr/lib64/dri/nouveau_dri.so
#3  0x00007f99f84bfefa in start_thread () from /lib64/libpthread.so.0
#4  0x00007f99fab3e3bf in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f99ef842700 (LWP 13704)):
#0  0x00007ffc80dfcae6 in clock_gettime ()
#1  0x00007f99fab05cf1 in clock_gettime@GLIBC_2.2.5 () from /lib64/libc.so.6
#2  0x00007f99f933b511 in qt_clock_gettime (ts=0x7f99ef841ad0, clock=1) at kernel/qelapsedtimer_unix.cpp:175
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007f99f9339e29 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f99e8004d50) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007f99f933a3f5 in QTimerInfoList::timerWait (this=0x7f99e8004d50, tm=...) at kernel/qtimerinfo_unix.cpp:388
#7  0x00007f99f933b96e in timerSourcePrepareHelper (timeout=0x7f99ef841ba4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:162
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f99ef841ba4) at kernel/qeventdispatcher_glib.cpp:166
#9  0x00007f99f7b088ca in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#10 0x00007f99f7b0926b in ?? () from /usr/lib64/libglib-2.0.so.0
#11 0x00007f99f7b0945f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#12 0x00007f99f933bc0b in QEventDispatcherGlib::processEvents (this=0x7f99e8000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#13 0x00007f99f92e3b9b in QEventLoop::exec (this=this@entry=0x7f99ef841d70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136
#14 0x00007f99f910e5ce in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:118
#15 0x00007f99f8962507 in ?? () from /usr/lib64/libQt5DBus.so.5
#16 0x00007f99f910f698 in QThreadPrivate::start (arg=0x7f99f89e4da0) at thread/qthread_unix.cpp:342
#17 0x00007f99f84bfefa in start_thread () from /lib64/libpthread.so.0
#18 0x00007f99fab3e3bf in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f99f4fbb700 (LWP 13703)):
#0  0x00007f99fab33acf in poll () from /lib64/libc.so.6
#1  0x00007f99f7582772 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f99f758343a in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f99f51c5ab0 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f99f910f698 in QThreadPrivate::start (arg=0x55aef7c8c120) at thread/qthread_unix.cpp:342
#5  0x00007f99f84bfefa in start_thread () from /lib64/libpthread.so.0
#6  0x00007f99fab3e3bf in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f99f709a800 (LWP 13699)):
[KCrash Handler]
#6  0x00007f99fa36fd2b in KJob::kill (this=0x0, verbosity=verbosity@entry=KJob::Quietly) at /usr/src/debug/kcoreaddons-5.68.0-1.1.x86_64/src/lib/jobs/kjob.cpp:117
#7  0x00007f99ec4a7633 in JobTracker::~JobTracker (this=<optimized out>, this=<optimized out>) at /usr/src/debug/ark-19.12.3-1.1.x86_64/part/jobtracker.cpp:42
#8  0x00007f99ec4a7699 in JobTracker::~JobTracker (this=<optimized out>, this=<optimized out>) at /usr/src/debug/ark-19.12.3-1.1.x86_64/part/jobtracker.cpp:44
#9  0x00007f99f930e59e in QObjectPrivate::deleteChildren (this=this@entry=0x55aef7e6f0e0) at kernel/qobject.cpp:2123
#10 0x00007f99f9e2afe6 in QWidget::~QWidget (this=0x55aef7e97a30, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1530
#11 0x00007f99f9e2b1d9 in QWidget::~QWidget (this=0x55aef7e97a30, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1408
#12 0x00007f99fa99c5a7 in KParts::Part::~Part (this=<optimized out>, __vtt_parm=<optimized out>, this=<optimized out>, __vtt_parm=<optimized out>) at /usr/include/c++/9/bits/atomic_base.h:413
#13 0x00007f99ec4c89f9 in Ark::Part::~Part (this=<optimized out>, this=<optimized out>) at /usr/src/debug/ark-19.12.3-1.1.x86_64/part/interface.h:37
#14 0x00007f99ec4c8c89 in Ark::Part::~Part (this=<optimized out>, this=<optimized out>) at /usr/src/debug/ark-19.12.3-1.1.x86_64/part/part.cpp:242
#15 0x000055aef5ecfd47 in MainWindow::~MainWindow (this=<optimized out>, this=<optimized out>) at /usr/src/debug/ark-19.12.3-1.1.x86_64/app/mainwindow.cpp:76
#16 0x000055aef5ecfe09 in MainWindow::~MainWindow (this=<optimized out>, this=<optimized out>) at /usr/src/debug/ark-19.12.3-1.1.x86_64/app/mainwindow.cpp:78
#17 0x00007f99f93117af in QObject::event (this=this@entry=0x55aef7ecb2e0, e=e@entry=0x55aef7fac920) at kernel/qobject.cpp:1326
#18 0x00007f99f9e2f565 in QWidget::event (this=this@entry=0x55aef7ecb2e0, event=event@entry=0x55aef7fac920) at kernel/qwidget.cpp:9092
#19 0x00007f99f9f43fc4 in QMainWindow::event (this=0x55aef7ecb2e0, event=0x55aef7fac920) at widgets/qmainwindow.cpp:1341
#20 0x00007f99fa6642b3 in KMainWindow::event (this=<optimized out>, ev=<optimized out>) at /usr/src/debug/kxmlgui-5.68.0-1.1.x86_64/src/kmainwindow.cpp:868
#21 0x00007f99fa636b49 in KXmlGuiWindow::event (this=0x55aef7ecb2e0, ev=0x55aef7fac920) at /usr/src/debug/kxmlgui-5.68.0-1.1.x86_64/src/kxmlguiwindow.cpp:121
#22 0x00007f99f9deccaf in QApplicationPrivate::notify_helper (this=this@entry=0x55aef7c63260, receiver=receiver@entry=0x55aef7ecb2e0, e=e@entry=0x55aef7fac920) at kernel/qapplication.cpp:3684
#23 0x00007f99f9df5df0 in QApplication::notify (this=0x7ffc80d6bd60, receiver=0x55aef7ecb2e0, e=0x55aef7fac920) at kernel/qapplication.cpp:3430
#24 0x00007f99f92e5002 in QCoreApplication::notifyInternal2 (receiver=0x55aef7ecb2e0, event=0x55aef7fac920) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:153
#25 0x00007f99f92e7794 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55aef7c62c60) at kernel/qcoreapplication.cpp:1832
#26 0x00007f99f933c573 in postEventSourceDispatch (s=0x55aef7d388f0) at kernel/qeventdispatcher_glib.cpp:277
#27 0x00007f99f7b09048 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#28 0x00007f99f7b093d0 in ?? () from /usr/lib64/libglib-2.0.so.0
#29 0x00007f99f7b0945f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#30 0x00007f99f933bbee in QEventDispatcherGlib::processEvents (this=0x55aef7d33bc0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#31 0x00007f99f92e3b9b in QEventLoop::exec (this=this@entry=0x7ffc80d6bc50, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136
#32 0x00007f99f92eb972 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:118
#33 0x000055aef5ec5585 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/ark-19.12.3-1.1.x86_64/app/main.cpp:352
[Inferior 1 (process 13699) detached]

Possible duplicates by query: bug 419818, bug 418676, bug 418350, bug 414728, bug 414149.

Reported using DrKonqi