https://bugs.kde.org/show_bug.cgi?id=467188
Bug ID: 467188
Summary: Just opening Discover seems to crash it
Classification: Applications
Product: Discover
Version: 5.27.2
Platform: Neon
OS: Linux
Status: REPORTED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: discover
Assignee: plasma-b...@kde.org
Reporter: dreape...@gmail.com
CC: aleix...@kde.org
Target Milestone: ---
Application: plasma-discover (5.27.2)
Qt Version: 5.15.8
Frameworks Version: 5.103.0
Operating System: Linux 5.19.0-35-generic x86_64
Windowing System: X11
Distribution: KDE neon 5.27
DrKonqi: 5.27.2 [KCrashBackend]
-- Information about the crash:
I open it on the home section and it crashes. Seems that for some reason, to
get past it, I have to click the tray icon to show updates and then click home.
Really weird.
The crash can be reproduced every time.
-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
[KCrash Handler]
#4 0x00007f869ceced30 in
std::__atomic_base<QMutexData*>::compare_exchange_strong(QMutexData*&,
QMutexData*, std::memory_order, std::memory_order)
(__m2=std::memory_order_acquire, __m1=std::memory_order_acquire, __p2=0x1,
__p1=<synthetic pointer>: <optimized out>, this=0x7f869d1a96b8
<QMapDataBase::shared_null+24>) at /usr/include/c++/11/bits/atomic_base.h:878
#5 std::atomic<QMutexData*>::compare_exchange_strong(QMutexData*&,
QMutexData*, std::memory_order, std::memory_order)
(__m2=std::memory_order_acquire, __m1=std::memory_order_acquire, __p2=0x1,
__p1=<synthetic pointer>: <optimized out>, this=0x7f869d1a96b8
<QMapDataBase::shared_null+24>) at /usr/include/c++/11/atomic:616
#6
QAtomicOps<QMutexData*>::testAndSetAcquire<QMutexData*>(std::atomic<QMutexData*>&,
QMutexData*, QMutexData*, QMutexData**) (currentValue=0x0, newValue=0x1,
expectedValue=0x0, _q_value=std::atomic<QMutexData *> = { 0x0 }) at
../../include/QtCore/../../src/corelib/thread/qatomic_cxx11.h:308
#7 QBasicAtomicPointer<QMutexData>::testAndSetAcquire(QMutexData*,
QMutexData*) (newValue=0x1, expectedValue=0x0, this=0x7f869d1a96b8
<QMapDataBase::shared_null+24>) at
../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:264
#8 QBasicMutex::fastTryLock() (this=0x7f869d1a96b8
<QMapDataBase::shared_null+24>) at thread/qmutex.h:122
#9 QBasicMutex::lock() (this=0x7f869d1a96b8 <QMapDataBase::shared_null+24>) at
thread/qmutex.h:83
#10 QRecursiveMutexPrivate::lock(int) (this=0x7f869d1a96a0
<QMapDataBase::shared_null>, timeout=timeout@entry=-1) at thread/qmutex.cpp:780
#11 0x00007f869cecec69 in QMutex::lock() (this=this@entry=0x55fb41ccd790) at
thread/qmutex.cpp:235
#12 0x00007f869d0be03c in std::unique_lock<QMutex>::lock() (this=<synthetic
pointer>) at /usr/include/c++/11/bits/unique_lock.h:131
#13 std::unique_lock<QMutex>::unique_lock(QMutex&) (__m=..., this=<synthetic
pointer>) at /usr/include/c++/11/bits/unique_lock.h:69
#14 (anonymous namespace)::qt_unique_lock<QMutex> (mutex=...) at
../../include/QtCore/5.15.8/QtCore/private/../../../../../src/corelib/thread/qlocking_p.h:106
#15 QCoreApplicationPrivate::lockThreadPostEventList(QObject*)
(object=<optimized out>) at kernel/qcoreapplication.cpp:1500
#16 0x00007f869d0bf68d in QCoreApplication::postEvent(QObject*, QEvent*, int)
(receiver=0x55fb401ada00, event=0x55fb4423c440, priority=0) at
kernel/qcoreapplication.cpp:1546
#17 0x00007f8680120159 in () at
/usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#18 0x00007f869d0e9ade in QObject::event(QEvent*) (this=0x55fb3f550750,
e=0x7f85fc023590) at kernel/qobject.cpp:1347
#19 0x00007f869eb6c793 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=<optimized out>, receiver=0x55fb3f550750, e=0x7f85fc023590) at
kernel/qapplication.cpp:3640
#20 0x00007f869d0bc07a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x55fb3f550750, event=0x7f85fc023590) at
kernel/qcoreapplication.cpp:1064
#21 0x00007f869d0bf167 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) (receiver=0x0, event_type=0, data=0x55fb3f1d6c00) at
kernel/qcoreapplication.cpp:1821
#22 0x00007f869d116487 in postEventSourceDispatch(GSource*, GSourceFunc,
gpointer) (s=0x55fb3f2b6860) at kernel/qeventdispatcher_glib.cpp:277
#23 0x00007f869b9c7d3b in g_main_context_dispatch () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f869ba1c6c8 in () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f869b9c53e3 in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f869d115ad8 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x55fb3f2b6420, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#27 0x00007f869d0ba99b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fffe2db3290, flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:69
#28 0x00007f869d0c2f34 in QCoreApplication::exec() () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#29 0x000055fb3db8ac63 in ()
#30 0x00007f869c629d90 in __libc_start_call_main
(main=main@entry=0x55fb3db8a340, argc=argc@entry=1,
argv=argv@entry=0x7fffe2db3578) at ../sysdeps/nptl/libc_start_call_main.h:58
#31 0x00007f869c629e40 in __libc_start_main_impl (main=0x55fb3db8a340, argc=1,
argv=0x7fffe2db3578, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fffe2db3568) at ../csu/libc-start.c:392
#32 0x000055fb3db8b6a5 in ()
[Inferior 1 (process 3275671) detached]
The reporter indicates this bug may be a duplicate of or related to bug 375083.
Reported using DrKonqi
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