Bug 408868

Application: plasma-discover (5.12.7)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.18.0-21-generic x86_64
Distribution: Ubuntu 18.04.2 LTS

-- Information about the crash:
Opening "Software" crashes the computer.
Clicking "Update" in the tray icon opened the app, but forced close it later.

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8909761800 (LWP 8190))]

Thread 10 (Thread 0x7f88b3fff700 (LWP 8204)):
#0  0x00007f8904d3b839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f890543d765 in QBasicMutex::lockInternal() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f8902cacf16 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#3  0x00007f8902cad7b5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#4  0x00007f8902c8984c in QSslSocket::startClientEncryption() () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#5  0x00007f8902c8a4f8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#6  0x00007f8902c922f9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007f89056535b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f8902c5ce89 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#9  0x00007f8902c5fdf8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007f8902c7076d in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f89078f882c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f89079000f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f89056249a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f890567e54d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f88ff527317 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f88ff527550 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f88ff5275dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f890567d90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f89056229ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f890544122a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f890544616d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f89016546db in start_thread (arg=0x7f88b3fff700) at pthread_create.c:463
#23 0x00007f8904d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f88c2608700 (LWP 8201)):
#0  0x00007f890165a9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f88bc028c50) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f890165a9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f88bc028c00, cond=0x7f88bc028c28) at pthread_cond_wait.c:502
#2  0x00007f890165a9f3 in __pthread_cond_wait (cond=0x7f88bc028c28, mutex=0x7f88bc028c00) at pthread_cond_wait.c:655
#3  0x00007f890544759b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f890543fc0b in QSemaphore::acquire(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f89056538c8 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f8902cb4d72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007f8902cb5ccc in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007f89056535b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f8902cb3e32 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007f8902c151bf in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f8902c1664c in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#12 0x00007f89056535b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f8902c88d52 in QSslSocket::preSharedKeyAuthenticationRequired(QSslPreSharedKeyAuthenticator*) () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#14 0x00007f8902cacc5c in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#15 0x00007f88c264e106 in  () at /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#16 0x00007f88c264c29b in  () at /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#17 0x00007f88c26561fe in  () at /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#18 0x00007f88c26550f7 in  () at /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#19 0x00007f88c2641474 in SSL_do_handshake () at /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#20 0x00007f8902cad08d in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#21 0x00007f8902cad7b5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#22 0x00007f8902c8984c in QSslSocket::startClientEncryption() () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#23 0x00007f8902c8a4f8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#24 0x00007f8902c922f9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#25 0x00007f89056535b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f8902c5ce89 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#27 0x00007f8902c5fdf8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#28 0x00007f8902c7076d in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#29 0x00007f89078f882c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f89079000f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f89056249a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f890567e54d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f88ff527317 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f88ff527550 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f88ff5275dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f890567d90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007f89056229ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007f890544122a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f890544616d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00007f89016546db in start_thread (arg=0x7f88c2608700) at pthread_create.c:463
#41 0x00007f8904d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f88d102a700 (LWP 8199)):
#0  0x00007f8904d34bf9 in __GI___poll (fds=0x7f88c8003de0, nfds=1, timeout=8713) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f88ff5274c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f88ff5275dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f890567d90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f89056229ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f890544122a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f890544616d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f89016546db in start_thread (arg=0x7f88d102a700) at pthread_create.c:463
#8  0x00007f8904d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f88d182b700 (LWP 8198)):
#0  0x00007f8904d300b4 in __GI___libc_read (fd=17, buf=0x7f88d182acd0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f88ff56c000 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f88ff526fb7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f88ff527470 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f88ff527862 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f88d366a026 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f88ff54ef15 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f89016546db in start_thread (arg=0x7f88d182b700) at pthread_create.c:463
#8  0x00007f8904d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f88d202c700 (LWP 8197)):
#0  0x00007f88ff524493 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f88ff526df2 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f88ff527470 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f88ff5275dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f88ff527621 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f88ff54ef15 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f89016546db in start_thread (arg=0x7f88d202c700) at pthread_create.c:463
#7  0x00007f8904d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f88dd832700 (LWP 8196)):
#0  0x00007f8904d300b4 in __GI___libc_read (fd=14, buf=0x7f88dd831b20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f88ff56c000 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f88ff526fb7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f88ff527470 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f88ff5275dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f890567d90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f89056229ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f890544122a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f89088212a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f890544616d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f89016546db in start_thread (arg=0x7f88dd832700) at pthread_create.c:463
#11 0x00007f8904d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f88e7fff700 (LWP 8194)):
#0  0x00007f88ff5243ce in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f88ff526df2 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f88ff527470 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f88ff5275dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f890567d90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f89056229ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f890544122a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f89060576f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f890544616d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f89016546db in start_thread (arg=0x7f88e7fff700) at pthread_create.c:463
#10 0x00007f8904d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f88eda4c700 (LWP 8192)):
#0  0x00007f88ff5244ad in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f88ff526df2 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f88ff527470 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f88ff5275dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f890567d90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f89056229ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f890544122a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f8906832d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f890544616d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f89016546db in start_thread (arg=0x7f88eda4c700) at pthread_create.c:463
#10 0x00007f8904d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f88f69e7700 (LWP 8191)):
#0  0x00007f8904d34bf9 in __GI___poll (fds=0x7f88f69e6ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f88ff2be747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f88ff2c036a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f88f97942a9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f890544616d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f89016546db in start_thread (arg=0x7f88f69e7700) at pthread_create.c:463
#6  0x00007f8904d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f8909761800 (LWP 8190)):
[KCrash Handler]
#6  0x00007f8904c5ee97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007f8904c60801 in __GI_abort () at abort.c:79
#8  0x00007f8905430fa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f89088842a7 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f8908885275 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f8908885e9a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f8907148375 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007f89088fa6c5 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f89078f882c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f89079000f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f89056249a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f890713d43f in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007f890713e07d in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007f89071152eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007f88f97f71c0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#21 0x00007f88ff527317 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f88ff527550 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f88ff5275dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f890567d8ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f89056229ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f890562ba84 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x0000564c7bab2148 in  ()
#28 0x00007f8904c41b97 in __libc_start_main (main=0x564c7bab1870, argc=3, argv=0x7ffc24e5b458, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc24e5b448) at ../csu/libc-start.c:310
#29 0x0000564c7bab23ca in _start ()

Reported using DrKonqi