Bug 418299

Summary: After exiting sleep mode, artifacts on the desktop.
Product: [Plasma] plasmashell Reporter: Aleksandr <aivanov1970>
Component: generic-crashAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED WORKSFORME    
Severity: crash CC: nate, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: master   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Aleksandr 2020-02-28 17:13:21 UTC 
Application: plasmashell (5.18.2)

Qt Version: 5.12.5
Frameworks Version: 5.67.0
Operating System: Linux 5.4.0-14-generic x86_64
Windowing system: X11
Distribution: Ubuntu Focal Fossa (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fdfe7567280 (LWP 1797))]

Thread 11 (Thread 0x7fdfa5126700 (LWP 3622)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5576812b57b0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5576812b5760, cond=0x5576812b5788) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5576812b5788, mutex=0x5576812b5760) at pthread_cond_wait.c:638
#3  0x00007fdfeafa0b3f in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdfeafa0c31 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfecc760f9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fdfecc7639d in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fdfb4d43700 (LWP 2160)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55767e0dc4f0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55767e0dc4a0, cond=0x55767e0dc4c8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55767e0dc4c8, mutex=0x55767e0dc4a0) at pthread_cond_wait.c:638
#3  0x00007fdfeafa0b3f in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdfeafa0c31 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfecc760f9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fdfecc7639d in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fdfb5bcf700 (LWP 2157)):
#0  0x00007fdfe9844183 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdfe98455fb in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdfe984606b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdfeb1b9903 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdfeaf997b5 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdfc01ee0bc in KCupsConnection::run() () from /lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fdfb7fff700 (LWP 2148)):
#0  __GI___libc_read (nbytes=16, buf=0x7fdfb7ffeb90, fd=50) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=50, buf=0x7fdfb7ffeb90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fdfe988e82f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdfe9845c8e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdfe98460e2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdfeb1b9903 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdfeaf997b5 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fdfc3a33700 (LWP 2107)):
#0  0x00007fdfeac38166 in __GI___clock_gettime (clock_id=<optimized out>, tp=0x7fdfc3a32b80) at ../sysdeps/unix/sysv/linux/clock_gettime.c:33
#1  0x00007fdfeb1b91c5 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdfeb1b7a5d in QTimerInfoList::updateCurrentTime() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fdfeb1ba0a5 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdfe9845b71 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdfe98460e2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fdfeb1b9903 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdfeaf997b5 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#12 0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fdfcb5ef700 (LWP 2073)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55767d64dbd4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55767d64db80, cond=0x55767d64dba8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55767d64dba8, mutex=0x55767d64db80) at pthread_cond_wait.c:638
#3  0x00007fdfeafa0b3f in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdfeafa0c31 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfecc760f9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fdfecc7639d in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fdfd170e700 (LWP 2039)):
#0  0x00007fdfe9845a84 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdfe98460e2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdfeb1b9903 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfeaf997b5 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdfecbe9e0a in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fdfdffff700 (LWP 1938)):
#0  0x00007fdfe98932a8 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdfe98456b1 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdfe984606b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdfeb1b9903 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdfeaf997b5 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdfec904469 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fdfe583f700 (LWP 1814)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:54
#1  0x00007fdfeac1dc27 in __GI___poll (fds=0x7fdfd8039050, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007fdfe984613e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdfeb1b9903 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdfeaf997b5 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdfec1caefa in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fdfe66c6700 (LWP 1811)):
#0  0x00007fdfeac1dc3f in __GI___poll (fds=0x7fdfe66c5ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fdfed07ac1a in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fdfed07c87a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fdfe6eb11a8 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fdfe7567280 (LWP 1797)):
[KCrash Handler]
#6  0x00007fdfea4482c4 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55767e11f340) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#7  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55767e11f2f0, cond=0x55767e11f318) at pthread_cond_wait.c:508
#8  __pthread_cond_wait (cond=0x55767e11f318, mutex=0x55767e11f2f0) at pthread_cond_wait.c:638
#9  0x00007fdfeafa0b3f in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fdfeafa0c31 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdfecc746c2 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fdfecc755a2 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007fdfecc75d5b in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007fdfeb5556bd in QWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#15 0x00007fdfeccd9109 in QQuickWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007fdfebbd3a66 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007fdfebbdd0e0 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007fdfeb161cca in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007fdfeb54bc06 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007fdfeb54be34 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#21 0x00007fdfeb52628b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#22 0x00007fdfe6eb223e in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#23 0x00007fdfe9845f4d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fdfe98461d0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fdfeb1b98e5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007fdfeb1685d6 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x000055767d055b25 in ?? ()
#30 0x00007fdfeab2f1e3 in __libc_start_main (main=0x55767d054ea0, argc=1, argv=0x7fff4907efb8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4907efa8) at ../csu/libc-start.c:308
#31 0x000055767d055cde in _start ()
[Inferior 1 (process 1797) detached]

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fdfe7567280 (LWP 1797))]

Thread 11 (Thread 0x7fdfa5126700 (LWP 3622)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5576812b57b0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5576812b5760, cond=0x5576812b5788) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5576812b5788, mutex=0x5576812b5760) at pthread_cond_wait.c:638
#3  0x00007fdfeafa0b3f in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdfeafa0c31 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfecc760f9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fdfecc7639d in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fdfb4d43700 (LWP 2160)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55767e0dc4f0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55767e0dc4a0, cond=0x55767e0dc4c8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55767e0dc4c8, mutex=0x55767e0dc4a0) at pthread_cond_wait.c:638
#3  0x00007fdfeafa0b3f in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdfeafa0c31 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfecc760f9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fdfecc7639d in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fdfb5bcf700 (LWP 2157)):
#0  0x00007fdfe9844183 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdfe98455fb in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdfe984606b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdfeb1b9903 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdfeaf997b5 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdfc01ee0bc in KCupsConnection::run() () from /lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fdfb7fff700 (LWP 2148)):
#0  __GI___libc_read (nbytes=16, buf=0x7fdfb7ffeb90, fd=50) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=50, buf=0x7fdfb7ffeb90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fdfe988e82f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdfe9845c8e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdfe98460e2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdfeb1b9903 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdfeaf997b5 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fdfc3a33700 (LWP 2107)):
#0  0x00007fdfeac38166 in __GI___clock_gettime (clock_id=<optimized out>, tp=0x7fdfc3a32b80) at ../sysdeps/unix/sysv/linux/clock_gettime.c:33
#1  0x00007fdfeb1b91c5 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdfeb1b7a5d in QTimerInfoList::updateCurrentTime() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fdfeb1ba0a5 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdfe9845b71 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdfe98460e2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fdfeb1b9903 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdfeaf997b5 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#12 0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fdfcb5ef700 (LWP 2073)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55767d64dbd4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55767d64db80, cond=0x55767d64dba8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55767d64dba8, mutex=0x55767d64db80) at pthread_cond_wait.c:638
#3  0x00007fdfeafa0b3f in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdfeafa0c31 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfecc760f9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fdfecc7639d in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fdfd170e700 (LWP 2039)):
#0  0x00007fdfe9845a84 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdfe98460e2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdfeb1b9903 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfeaf997b5 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdfecbe9e0a in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fdfdffff700 (LWP 1938)):
#0  0x00007fdfe98932a8 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdfe98456b1 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdfe984606b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdfeb1b9903 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdfeaf997b5 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdfec904469 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fdfe583f700 (LWP 1814)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:54
#1  0x00007fdfeac1dc27 in __GI___poll (fds=0x7fdfd8039050, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007fdfe984613e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdfeb1b9903 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdfeaf997b5 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdfec1caefa in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fdfe66c6700 (LWP 1811)):
#0  0x00007fdfeac1dc3f in __GI___poll (fds=0x7fdfe66c5ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fdfed07ac1a in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fdfed07c87a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fdfe6eb11a8 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fdfeaf9aa02 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdfea441669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fdfeac2a333 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fdfe7567280 (LWP 1797)):
[KCrash Handler]
#6  0x00007fdfea4482c4 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55767e11f340) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#7  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55767e11f2f0, cond=0x55767e11f318) at pthread_cond_wait.c:508
#8  __pthread_cond_wait (cond=0x55767e11f318, mutex=0x55767e11f2f0) at pthread_cond_wait.c:638
#9  0x00007fdfeafa0b3f in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fdfeafa0c31 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdfecc746c2 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fdfecc755a2 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007fdfecc75d5b in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007fdfeb5556bd in QWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#15 0x00007fdfeccd9109 in QQuickWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007fdfebbd3a66 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007fdfebbdd0e0 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007fdfeb161cca in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007fdfeb54bc06 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007fdfeb54be34 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#21 0x00007fdfeb52628b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#22 0x00007fdfe6eb223e in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#23 0x00007fdfe9845f4d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fdfe98461d0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fdfe9846273 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fdfeb1b98e5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fdfeb16086b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007fdfeb1685d6 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x000055767d055b25 in ?? ()
#30 0x00007fdfeab2f1e3 in __libc_start_main (main=0x55767d054ea0, argc=1, argv=0x7fff4907efb8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4907efa8) at ../csu/libc-start.c:308
#31 0x000055767d055cde in _start ()
[Inferior 1 (process 1797) detached]

Possible duplicates by query: bug 418277, bug 418244, bug 418232, bug 418216, bug 418167.

Reported using DrKonqi
Comment 1 Nate Graham 2021-03-08 23:02:54 UTC 
Is this still reproducible?
Comment 2 Aleksandr 2021-03-09 07:13:26 UTC 
Нет. Система давно заменена на Ubuntu.
Comment 3 Nate Graham 2021-03-09 16:03:51 UTC 
OK, thanks.