Bug 394255

Summary: Plasma random crash
Product: [Plasma] plasmashell Reporter: JORGETECH <jorgesanini>
Component: generic-crashAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DUPLICATE    
Severity: crash CC: notmart, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.10.5   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description JORGETECH 2018-05-14 16:27:31 UTC 
Application: plasmashell (5.10.5)

Qt Version: 5.9.1
Frameworks Version: 5.38.0
Operating System: Linux 4.13.0-42-generic x86_64
Distribution: Ubuntu 17.10

-- Information about the crash:
- What I was doing when the application crashed: I was using Firefox when suddenly Plasma restarted, the crash only lasted two or three seconds. Widgets were not affected and the desktop was restored correctly.

- Unusual behavior I noticed: It did the same thing one or two days ago.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f94c0c11fc0 (LWP 1596))]

Thread 20 (Thread 0x7f938affd700 (LWP 6564)):
#0  0x00007f94b9af7072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56291dbf4e10) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f94b9af7072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x56291dbf4dc0, cond=0x56291dbf4de8) at pthread_cond_wait.c:502
#2  0x00007f94b9af7072 in __pthread_cond_wait (cond=0x56291dbf4de8, mutex=0x56291dbf4dc0) at pthread_cond_wait.c:655
#3  0x00007f94ba95b6cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f93d3787995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f93d378ba18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f93d37898db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f94b9af07fc in start_thread (arg=0x7f938affd700) at pthread_create.c:465
#12 0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f938b7fe700 (LWP 6563)):
#0  0x00007f94b9af7072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56291dbf4e10) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f94b9af7072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x56291dbf4dc0, cond=0x56291dbf4de8) at pthread_cond_wait.c:502
#2  0x00007f94b9af7072 in __pthread_cond_wait (cond=0x56291dbf4de8, mutex=0x56291dbf4dc0) at pthread_cond_wait.c:655
#3  0x00007f94ba95b6cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f93d3787995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f93d378ba18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007f93d37898db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#18 0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f94b9af07fc in start_thread (arg=0x7f938b7fe700) at pthread_create.c:465
#20 0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f938bfff700 (LWP 6562)):
#0  0x00007f94b9af7072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56291dbf4e10) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f94b9af7072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x56291dbf4dc0, cond=0x56291dbf4de8) at pthread_cond_wait.c:502
#2  0x00007f94b9af7072 in __pthread_cond_wait (cond=0x56291dbf4de8, mutex=0x56291dbf4dc0) at pthread_cond_wait.c:655
#3  0x00007f94ba95b6cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f93d3787995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f93d378ba18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f93d37898db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f94b9af07fc in start_thread (arg=0x7f938bfff700) at pthread_create.c:465
#14 0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f939c93e700 (LWP 6561)):
#0  0x00007f94b9af7072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56291dbf4e10) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f94b9af7072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x56291dbf4dc0, cond=0x56291dbf4de8) at pthread_cond_wait.c:502
#2  0x00007f94b9af7072 in __pthread_cond_wait (cond=0x56291dbf4de8, mutex=0x56291dbf4dc0) at pthread_cond_wait.c:655
#3  0x00007f94ba95b6cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f93d3787995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f93d378ba18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f93d37898db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f94b9af07fc in start_thread (arg=0x7f939c93e700) at pthread_create.c:465
#14 0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f939d13f700 (LWP 6560)):
#0  0x00007f94b9af7072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56291dbf4e10) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f94b9af7072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x56291dbf4dc0, cond=0x56291dbf4de8) at pthread_cond_wait.c:502
#2  0x00007f94b9af7072 in __pthread_cond_wait (cond=0x56291dbf4de8, mutex=0x56291dbf4dc0) at pthread_cond_wait.c:655
#3  0x00007f94ba95b6cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f93d3787995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f93d378ba18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f93d37898db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f94b9af07fc in start_thread (arg=0x7f939d13f700) at pthread_create.c:465
#12 0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f939d940700 (LWP 6559)):
#0  0x00007f94b9af7072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56291dbf4e10) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f94b9af7072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x56291dbf4dc0, cond=0x56291dbf4de8) at pthread_cond_wait.c:502
#2  0x00007f94b9af7072 in __pthread_cond_wait (cond=0x56291dbf4de8, mutex=0x56291dbf4dc0) at pthread_cond_wait.c:655
#3  0x00007f94ba95b6cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f93d3787995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f93d378ba18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f93d37898db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f94b9af07fc in start_thread (arg=0x7f939d940700) at pthread_create.c:465
#14 0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f93c4e30700 (LWP 6558)):
#0  0x00007f94b9af7072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56291dbf4e10) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f94b9af7072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x56291dbf4dc0, cond=0x56291dbf4de8) at pthread_cond_wait.c:502
#2  0x00007f94b9af7072 in __pthread_cond_wait (cond=0x56291dbf4de8, mutex=0x56291dbf4dc0) at pthread_cond_wait.c:655
#3  0x00007f94ba95b6cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f93d3787995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f93d378ba18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f93d37898db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f94b9af07fc in start_thread (arg=0x7f93c4e30700) at pthread_create.c:465
#12 0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f93a9802700 (LWP 6557)):
#0  0x00007f94b9af7072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56291dbf4e10) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f94b9af7072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x56291dbf4dc0, cond=0x56291dbf4de8) at pthread_cond_wait.c:502
#2  0x00007f94b9af7072 in __pthread_cond_wait (cond=0x56291dbf4de8, mutex=0x56291dbf4dc0) at pthread_cond_wait.c:655
#3  0x00007f94ba95b6cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f93d3787995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f93d378ba18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f93d378ba72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f93d3786b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f93d37898db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f94b9af07fc in start_thread (arg=0x7f93a9802700) at pthread_create.c:465
#12 0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f93aa003700 (LWP 1848)):
#0  0x00007f94ba250951 in __GI___poll (fds=0x7f93a4002de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94b4e83169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94b4e8327c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94bab9049b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f94bab35e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94ba9553ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f94b9af07fc in start_thread (arg=0x7f93aa003700) at pthread_create.c:465
#8  0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f93bec6d700 (LWP 1802)):
#0  0x00007f94b4ec85b9 in g_mutex_lock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f94b4e82164 in g_main_context_release () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94b4e83126 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94b4e8327c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94bab9049b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94bab35e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94ba9553ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f93bf334717 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f94b9af07fc in start_thread (arg=0x7f93bec6d700) at pthread_create.c:465
#10 0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f93c5631700 (LWP 1795)):
#0  0x00007f94b4e82a11 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f94b4e83110 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94b4e8327c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94bab9049b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f94bab35e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94ba9553ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f94b9af07fc in start_thread (arg=0x7f93c5631700) at pthread_create.c:465
#8  0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f93d9d50700 (LWP 1789)):
#0  0x00007f94ba250951 in __GI___poll (fds=0x7f93cc005220, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94b4e83169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94b4e8327c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94bab9049b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f94bab35e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94ba9553ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f93da36b3c5 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#7  0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f94b9af07fc in start_thread (arg=0x7f93d9d50700) at pthread_create.c:465
#9  0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f93db241700 (LWP 1785)):
#0  0x00007f94ba250951 in __GI___poll (fds=0x7f93d4005090, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94b4e83169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94b4e8327c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94bab9049b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f94bab35e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94ba9553ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94be64b846 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f94b9af07fc in start_thread (arg=0x7f93db241700) at pthread_create.c:465
#9  0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f9405c4d700 (LWP 1784)):
#0  0x00007f94b4ec85b9 in g_mutex_lock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f94b4e826b3 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94b4e8309b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94b4e8327c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94bab9049b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94bab35e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94ba9553ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f94b9af07fc in start_thread (arg=0x7f9405c4d700) at pthread_create.c:465
#9  0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f948be70700 (LWP 1782)):
#0  0x00007f94b9af7072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f94c05eefb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f94b9af7072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f94c05eef68, cond=0x7f94c05eef90) at pthread_cond_wait.c:502
#2  0x00007f94b9af7072 in __pthread_cond_wait (cond=0x7f94c05eef90, mutex=0x7f94c05eef68) at pthread_cond_wait.c:655
#3  0x00007f94c02fabd4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f94c02fac19 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f94b9af07fc in start_thread (arg=0x7f948be70700) at pthread_create.c:465
#6  0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f949bdc7700 (LWP 1781)):
#0  0x00007f94ba2508f0 in __GI___poll (fds=0x7f9490002de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94b4e83169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94b4e8327c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94bab9049b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f94bab35e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94ba9553ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94bdab5f45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f94b9af07fc in start_thread (arg=0x7f949bdc7700) at pthread_create.c:465
#9  0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f94a20a9700 (LWP 1703)):
#0  0x00007f94c0a78d6e in _dl_update_slotinfo (req_modid=1) at ../elf/dl-tls.c:634
#1  0x00007f94c0a7906c in update_get_addr (ti=0x7f94baff16a0) at ../elf/dl-tls.c:808
#2  0x00007f94c0a7efa8 in __tls_get_addr () at ../sysdeps/x86_64/tls_get_addr.S:55
#3  0x00007f94ba959126 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f94bab90891 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94b4e82b71 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f94b4e83110 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f94b4e8327c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f94bab9049b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f94bab35e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f94ba9553ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f94bdab5f45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f94b9af07fc in start_thread (arg=0x7f94a20a9700) at pthread_create.c:465
#14 0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f94a3aee700 (LWP 1662)):
#0  0x00007f94ba24c06d in __GI___libc_read (fd=7, buf=0x7f94a3aeda60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f94b4ec7280 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94b4e82c4b in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94b4e83110 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94b4e8327c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94bab9049b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94bab35e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f94ba9553ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f94bb00ce45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f94b9af07fc in start_thread (arg=0x7f94a3aee700) at pthread_create.c:465
#11 0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f94a99e8700 (LWP 1617)):
#0  0x00007f94ba250951 in __GI___poll (fds=0x7f94a99e7bb8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94bf251747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f94bf25353a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f94abb2ff09 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f94ba95a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94b9af07fc in start_thread (arg=0x7f94a99e8700) at pthread_create.c:465
#6  0x00007f94ba25cb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f94c0c11fc0 (LWP 1596)):
[KCrash Handler]
#6  0x00007f94bd87e10c in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f94bda09580 in QQmlOpenMetaObject::setValue(QByteArray const&, QVariant const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f94bdae89be in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f94bdaeacd6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f94bdaeada2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f94bab63b4d in QObjectData::dynamicMetaObject() const () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f94bda1182e in QQmlData::disconnectNotifiers() () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007f94bda11c3a in QQmlData::destroyed(QObject*) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007f94bab6d807 in QObject::~QObject() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f94bab6e149 in QObject::~QObject() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f94bdaeaf77 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007f94bdaeb0f1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#18 0x00007f94bdaeb47e in QQmlListModel::clear() () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#19 0x00007f94bdaf0ddd in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#20 0x00007f94bdaf13b5 in QQmlListModel::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#21 0x00007f94bda6a119 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#22 0x00007f94bd9e82cb in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#23 0x00007f94bd9e97d2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#24 0x00007f94bd9ea4f9 in QV4::QObjectMethod::callInternal(QV4::CallData*, QV4::Scope&) const () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#25 0x00007f94bda0356d in QV4::Runtime::method_callProperty(QV4::ExecutionEngine*, int, QV4::CallData*) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#26 0x00007f93da57b198 in  ()
#27 0x00007f949a9c8518 in  ()
#28 0xa9afbf638ae42e00 in  ()
#29 0x0000562914355110 in  ()
#30 0x00007f949a9c8510 in  ()
#31 0x0000562913ae90d0 in  ()
#32 0x00007f949a9c84f0 in  ()
#33 0x00007f949a9c8508 in  ()
#34 0x00007ffc5a340610 in  ()
#35 0x0000562913ae90d0 in  ()
#36 0x0000000000000000 in  ()

Reported using DrKonqi
Comment 1 Marco Martin 2018-05-18 08:30:02 UTC 

*** This bug has been marked as a duplicate of bug 385941 ***