Application: plasma-discover (5.14.5)

Qt Version: 5.11.3
Frameworks Version: 5.62.0
Operating System: Linux 5.2.0-2parrot1-amd64 x86_64
Distribution: Parrot GNU/Linux 4.7

-- Information about the crash:
I was using the system as usual. Discover crashes since fresh install

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 0x7f9ca9216300 (LWP 3300))]

Thread 10 (Thread 0x7f9c63fff700 (LWP 3312)):
#0  0x00007f9cabab7829 in g_mutex_lock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9caba6bf97 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9caba6cb2b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9caba6cf82 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9c8d2cbe46 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f9caba9589d in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9cac2e6fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007f9cacdfa49f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f9c8cda2700 (LWP 3311)):
#0  0x00007f9cacdeba6c in __GI___libc_read (nbytes=16, buf=0x7f9c8cda1ce0, fd=25) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f9cacdeba6c in __GI___libc_read (fd=25, buf=0x7f9c8cda1ce0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f9cabab3430 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9caba6c6cf in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9caba6cba0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9caba6cd1c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9caba6cd61 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f9caba9589d in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f9cac2e6fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f9cacdfa49f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f9c8f518700 (LWP 3307)):
#0  0x00007f9cacdf5279 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f9cad152a84 in QSemaphore::acquire(int) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f9cad32e708 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f9cac86ad82 in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#4  0x00007f9cac86bb6c in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#5  0x00007f9cad32e463 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9cac869dd2 in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007f9cac7bd4b5 in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007f9cac7bec2c in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#9  0x00007f9cad32e463 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f9cac839972 in QSslSocket::preSharedKeyAuthenticationRequired(QSslPreSharedKeyAuthenticator*) () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f9cac85fe8a in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#12 0x00007f9c9426bede in  () at /lib/x86_64-linux-gnu/libssl.so.1.1
#13 0x00007f9c94269ee9 in  () at /lib/x86_64-linux-gnu/libssl.so.1.1
#14 0x00007f9c94274036 in  () at /lib/x86_64-linux-gnu/libssl.so.1.1
#15 0x00007f9c94272f6f in  () at /lib/x86_64-linux-gnu/libssl.so.1.1
#16 0x00007f9c9425ef44 in SSL_do_handshake () at /lib/x86_64-linux-gnu/libssl.so.1.1
#17 0x00007f9cac860605 in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#18 0x00007f9cac8609a5 in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#19 0x00007f9cac83a618 in QSslSocket::startClientEncryption() () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#20 0x00007f9cac83b330 in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#21 0x00007f9cac842d79 in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#22 0x00007f9cad32e463 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f9cac8091f3 in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#24 0x00007f9cac80bfb0 in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#25 0x00007f9cac81af5d in  () at /lib/x86_64-linux-gnu/libQt5Network.so.5
#26 0x00007f9cae122501 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f9cae1299b0 in QApplication::notify(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f9cad305029 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f9cad356fea in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f9caba6c9ee in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f9caba6cc88 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f9caba6cd1c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f9cad3563e3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f9cad303cfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007f9cad153d8e in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007f9cad15da07 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007f9cac2e6fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#38 0x00007f9cacdfa49f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f9c8ffff700 (LWP 3306)):
#0  0x00007f9cacdeba6c in __GI___libc_read (nbytes=16, buf=0x7f9c8fffeb80, fd=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f9cacdeba6c in __GI___libc_read (fd=16, buf=0x7f9c8fffeb80, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f9cabab3430 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9caba6c6cf in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9caba6cba0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9caba6cd1c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9cad3563e3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9cad303cfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9cad153d8e in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9cad15da07 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f9cac2e6fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f9cacdfa49f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f9c95302700 (LWP 3305)):
#0  0x00007f9cacdefedf in __GI___poll (fds=0x7f9c88004ed0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9caba6cbf6 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9caba6cd1c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9cad3563e3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9cad303cfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9cad153d8e in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9caebb5476 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f9cad15da07 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9cac2e6fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f9cacdfa49f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f9c9653b700 (LWP 3304)):
#0  0x00007f9cac2ecdb5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x5624dcde7658) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9cac2ecdb5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5624dcde7608, cond=0x5624dcde7630) at pthread_cond_wait.c:502
#2  0x00007f9cac2ecdb5 in __pthread_cond_wait (cond=0x5624dcde7630, mutex=0x5624dcde7608) at pthread_cond_wait.c:655
#3  0x00007f9c96a5cffb in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f9c96a5cc17 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f9cac2e6fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f9cacdfa49f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f9ca55a9700 (LWP 3303)):
#0  0x00007f9cacdeba6c in __GI___libc_read (nbytes=16, buf=0x7f9ca55a8b60, fd=9) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f9cacdeba6c in __GI___libc_read (fd=9, buf=0x7f9ca55a8b60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f9cabab3430 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9caba6c6cf in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9caba6cba0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9caba6cd1c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9cad3563e3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9cad303cfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9cad153d8e in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9cad8eac65 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f9cad15da07 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f9cac2e6fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007f9cacdfa49f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f9ca67ba700 (LWP 3302)):
#0  0x00007f9cacdeba6c in __GI___libc_read (nbytes=16, buf=0x7f9ca67b9b50, fd=7) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f9cacdeba6c in __GI___libc_read (fd=7, buf=0x7f9ca67b9b50, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f9cabab3430 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9caba6c6cf in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9caba6cba0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9caba6cd1c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9cad3563e3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9cad303cfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9cad153d8e in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9cae632545 in  () at /lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f9cad15da07 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f9cac2e6fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007f9cacdfa49f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f9ca8020700 (LWP 3301)):
#0  0x00007f9cacdefedf in __GI___poll (fds=0x7f9ca801fcb8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9cab98bcf7 in  () at /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f9cab98d91a in xcb_wait_for_event () at /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f9ca8de5d79 in  () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f9cad15da07 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9cac2e6fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f9cacdfa49f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f9ca9216300 (LWP 3300)):
[KCrash Handler]
#6  0x00007f9cacd3a081 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#7  0x00007f9cacd25535 in __GI_abort () at abort.c:79
#8  0x00007f9cacd7bdb8 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f9cace86aae "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#9  0x00007f9cacd8248a in malloc_printerr (str=str@entry=0x7f9cace88768 "free(): double free detected in tcache 2") at malloc.c:5361
#10 0x00007f9cacd83e4d in _int_free (av=0x7f9caceb9c40 <main_arena>, p=0x5624ddb4d190, have_lock=<optimized out>) at malloc.c:4215
#11 0x00007f9c8d3fd674 in  () at /lib/x86_64-linux-gnu/libappstream.so.4
#12 0x00007f9c8d3fdb30 in  () at /lib/x86_64-linux-gnu/libappstream.so.4
#13 0x00007f9c8d40df71 in  () at /lib/x86_64-linux-gnu/libappstream.so.4
#14 0x00007f9c8d408d93 in as_metadata_parse () at /lib/x86_64-linux-gnu/libappstream.so.4
#15 0x00007f9c8d4091cc in as_metadata_parse_file () at /lib/x86_64-linux-gnu/libappstream.so.4
#16 0x00007f9c8d4154aa in as_pool_load () at /lib/x86_64-linux-gnu/libappstream.so.4
#17 0x00007f9c8d460c97 in AppStream::Pool::load() () at /lib/x86_64-linux-gnu/libAppStreamQt.so.2
#18 0x00007f9c8d460d6f in AppStream::Pool::load(QString*) () at /lib/x86_64-linux-gnu/libAppStreamQt.so.2
#19 0x00007f9c8d4db815 in PackageKitBackend::reloadPackageList() () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/packagekit-backend.so
#20 0x00007f9c8d4dc2ed in PackageKitBackend::PackageKitBackend(QObject*) () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/packagekit-backend.so
#21 0x00007f9c8d4e291b in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/packagekit-backend.so
#22 0x00007f9caea4dfe4 in DiscoverBackendsFactory::backendForFile(QString const&, QString const&) const () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#23 0x00007f9caea4e73b in DiscoverBackendsFactory::backend(QString const&) const () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#24 0x00007f9caea4eb77 in DiscoverBackendsFactory::allBackends() const () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#25 0x00007f9caea3962a in ResourcesModel::registerAllBackends() () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#26 0x00007f9caea5e6d5 in  () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#27 0x00007f9cad32ed62 in QObject::event(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f9cae122501 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f9cae1299b0 in QApplication::notify(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f9cad305029 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f9cad30800b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f9cad356da3 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f9caba6c9ee in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f9caba6cc88 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f9caba6cd1c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f9cad3563c7 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007f9ca8e7c391 in  () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#38 0x00007f9cad303cfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f9cad30bcd2 in QCoreApplication::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00005624dc0aab23 in  ()
#41 0x00007f9cacd26bbb in __libc_start_main (main=0x5624dc0aa550, argc=1, argv=0x7fff4a5930d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4a5930c8) at ../csu/libc-start.c:308
#42 0x00005624dc0ab0ca in _start ()
[Inferior 1 (process 3300) detached]

Possible duplicates by query: bug 411597.

Reported using DrKonqi