Application: plasmashell (5.14.5)

Qt Version: 5.11.3
Frameworks Version: 5.54.0
Operating System: Linux 5.2.0-0.bpo.3-amd64 x86_64
Distribution: Debian GNU/Linux 10 (buster)

-- Information about the crash:
- Custom settings of the application:

Plasmashell keeps crashing since printer configuration was changed in CUPS's management page (browser). Plasmashell doesn't crash if CUPS service is stopped.

The crash can be reproduced every time.

-- 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 0x7f0c14bf2840 (LWP 30449))]

Thread 7 (Thread 0x7f0bed123700 (LWP 30465)):
#0  0x00007f0c19bf5819 in __GI___poll (fds=0x7f0be0006070, nfds=1, timeout=3434867) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0c17cea136 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0c17cea25c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0c1a1077b3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f0c1a0b51cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f0c19f04e96 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f0bf92456f7 in KCupsConnection::run() () from /lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f0c19f0ea87 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0c18e2afa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f0c19c004cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f0bed924700 (LWP 30456)):
#0  0x00007f0c19bf5819 in __GI___poll (fds=0x7f0be8004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0c17cea136 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0c17cea25c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0c1a1077b3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f0c1a0b51cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f0c19f04e96 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f0c19f0ea87 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f0c18e2afa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007f0c19c004cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f0bfafe6700 (LWP 30454)):
#0  __GI___libc_read (nbytes=16, buf=0x7f0bfafe5b00, fd=20) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=20, buf=0x7f0bfafe5b00, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f0c17d2faa0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0c17ce9c0f in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0c17cea0e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0c17cea25c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f0c1a1077b3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f0c1a0b51cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0c19f04e96 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f0c1baba476 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f0c19f0ea87 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f0c18e2afa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007f0c19c004cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f0c033b2700 (LWP 30453)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55e60e0f8048) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e60e0f7ff8, cond=0x55e60e0f8020) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e60e0f8020, mutex=0x55e60e0f7ff8) at pthread_cond_wait.c:655
#3  0x00007f0c0380ce03 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f0c0380cb57 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f0c18e2afa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f0c19c004cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f0c11c2b700 (LWP 30452)):
#0  0x00007f0c1a107454 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f0c17ce9b11 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0c17cea0e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0c17cea25c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0c1a1077b3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f0c1a0b51cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f0c19f04e96 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f0c1b835c65 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f0c19f0ea87 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f0c18e2afa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007f0c19c004cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f0c12e43700 (LWP 30451)):
#0  __GI___libc_read (nbytes=16, buf=0x7f0c12e42b10, fd=7) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=7, buf=0x7f0c12e42b10, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f0c17d2faa0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0c17ce9c0f in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0c17cea0e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0c17cea25c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f0c1a1077b3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f0c1a0b51cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0c19f04e96 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f0c1a941545 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f0c19f0ea87 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f0c18e2afa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007f0c19c004cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f0c14bf2840 (LWP 30449)):
[KCrash Handler]
#6  0x00007f0bf9264768 in JobModel::updateJob(int, KCupsJob const&) () from /lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f0bf9266718 in JobModel::insertJob(int, KCupsJob const&) () from /lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007f0bf9266bd9 in JobModel::getJobFinished(KCupsRequest*) () from /lib/x86_64-linux-gnu/libkcupslib.so
#9  0x00007f0c1a0e00e2 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f0c1abae4c1 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f0c1abb5970 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f0c1a0b64f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f0c1a0b94db in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f0c1a108173 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f0c17ce9f2e in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f0c17cea1c8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f0c17cea25c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f0c1a107797 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f0c1481d401 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#20 0x00007f0c1a0b51cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f0c1a0bd1a2 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x000055e60ccad1ab in ?? ()
#23 0x00007f0c19b2b09b in __libc_start_main (main=0x55e60ccac6a0, argc=1, argv=0x7ffe78f04bf8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe78f04be8) at ../csu/libc-start.c:308
#24 0x000055e60ccad62a in _start ()
[Inferior 1 (process 30449) detached]

The reporter indicates this bug may be a duplicate of or related to bug 326289.

Possible duplicates by query: bug 416215, bug 416088, bug 414883, bug 414882, bug 414652.

Reported using DrKonqi