Bug 414842

Application: kinfocenter (5.17.4)

Qt Version: 5.13.2
Frameworks Version: 5.64.0
Operating System: Linux 4.15.0-72-lowlatency x86_64
Distribution: KDE neon User Edition 5.17

-- Information about the crash:
I was looking at the physical memory section in Info Centre. As I closed Info Centre straight after, I was presented with the crash and bug report at the bottom right corner of the Plasma Desktop as a typical notification.

-- Backtrace:
Application: Info Centre (kinfocenter), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1d4ac85d40 (LWP 12123))]

Thread 4 (Thread 0x7f1d2280c700 (LWP 12127)):
#0  0x00007f1d423c49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55ed3b59b028) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55ed3b59afd8, cond=0x55ed3b59b000) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55ed3b59b000, mutex=0x55ed3b59afd8) at pthread_cond_wait.c:655
#3  0x00007f1d23c202cb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f1d23c1fff7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f1d423be6db in start_thread (arg=0x7f1d2280c700) at pthread_create.c:463
#6  0x00007f1d46f3a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f1d2fb69700 (LWP 12126)):
#0  0x00007f1d46f2dbf9 in __GI___poll (fds=0x7f1d2801a340, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f1d406775c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1d406776dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1d47880b9b in QEventDispatcherGlib::processEvents (this=0x7f1d28000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f1d4782106a in QEventLoop::exec (this=this@entry=0x7f1d2fb68d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f1d4763c3aa in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007f1d44f5b0e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f1d4763db52 in QThreadPrivate::start (arg=0x7f1d451d2d80) at thread/qthread_unix.cpp:360
#8  0x00007f1d423be6db in start_thread (arg=0x7f1d2fb69700) at pthread_create.c:463
#9  0x00007f1d46f3a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f1d37a6f700 (LWP 12125)):
#0  0x00007f1d46f2dbf9 in __GI___poll (fds=0x7f1d37a6eca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f1d429ed747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f1d429ef36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f1d3a854e10 in QXcbEventQueue::run (this=0x55ed3b36c470) at qxcbeventqueue.cpp:228
#4  0x00007f1d4763db52 in QThreadPrivate::start (arg=0x55ed3b36c470) at thread/qthread_unix.cpp:360
#5  0x00007f1d423be6db in start_thread (arg=0x7f1d37a6f700) at pthread_create.c:463
#6  0x00007f1d46f3a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f1d4ac85d40 (LWP 12123)):
[KCrash Handler]
#6  std::__atomic_base<int>::load (__m=std::memory_order_relaxed, this=0x2e072c3e002b3a04) at /usr/include/c++/7/bits/atomic_base.h:396
#7  QAtomicOps<int>::load<int> (_q_value=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qatomic_cxx11.h:227
#8  QBasicAtomicInteger<int>::load (this=0x2e072c3e002b3a04) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qbasicatomic.h:103
#9  QWeakPointer<QObject>::data (this=0x7f1d2001fb90) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:569
#10 QPointer<QObject>::data (this=0x7f1d2001fb90) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qpointer.h:86
#11 Solid::DeviceInterfacePrivate::backendObject (this=0x7f1d2001fb88) at ./src/solid/devices/frontend/deviceinterface.cpp:110
#12 0x00007f1d35929d08 in Solid::DevicePrivate::~DevicePrivate (this=0x55ed3b7d7c00, __in_chrg=<optimized out>) at ./src/solid/devices/frontend/device.cpp:222
#13 0x00007f1d35929e89 in Solid::DevicePrivate::~DevicePrivate (this=0x55ed3b7d7c00, __in_chrg=<optimized out>) at ./src/solid/devices/frontend/device.cpp:225
#14 0x00007f1d3592b4b0 in Solid::DeviceManagerPrivate::~DeviceManagerPrivate (this=0x55ed3b576ea0, __in_chrg=<optimized out>) at ./src/solid/devices/frontend/devicemanager.cpp:58
#15 0x00007f1d3592bbf9 in Solid::DeviceManagerPrivate::~DeviceManagerPrivate (this=0x55ed3b576ea0, __in_chrg=<optimized out>) at ./src/solid/devices/frontend/devicemanager.cpp:63
#16 0x00007f1d47643a11 in QThreadStorageData::finish (p=0x55ed3b34b6b0) at thread/qthreadstorage.cpp:200
#17 0x00007f1d47825e42 in QCoreApplicationPrivate::cleanupThreadData (this=this@entry=0x55ed3b34c2b0) at kernel/qcoreapplication.cpp:521
#18 0x00007f1d47deb098 in QGuiApplicationPrivate::~QGuiApplicationPrivate (this=0x55ed3b34c2b0, __in_chrg=<optimized out>) at kernel/qguiapplication.cpp:1622
#19 0x00007f1d48626799 in QApplicationPrivate::~QApplicationPrivate (this=0x55ed3b34c2b0, __in_chrg=<optimized out>) at kernel/qapplication.cpp:181
#20 0x00007f1d4785b15b in QScopedPointerDeleter<QObjectData>::cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:60
#21 QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::~QScopedPointer (this=0x7fffb1267218, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:107
#22 QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:891
#23 0x00007f1d478254d6 in QCoreApplication::~QCoreApplication (this=0x7fffb1267210, __in_chrg=<optimized out>) at kernel/qcoreapplication.cpp:897
#24 0x00007f1d47deec0c in QGuiApplication::~QGuiApplication (this=0x7fffb1267210, __in_chrg=<optimized out>) at kernel/qguiapplication.cpp:651
#25 0x00007f1d48628909 in QApplication::~QApplication (this=0x7fffb1267210, __in_chrg=<optimized out>) at kernel/qapplication.cpp:773
#26 0x000055ed39be0303 in KicApp::~KicApp (this=0x7fffb1267210, __in_chrg=<optimized out>) at ./main.h:34
#27 main (argc=<optimized out>, argv=<optimized out>) at ./main.cpp:75

Possible duplicates by query: bug 414147, bug 413706, bug 413301, bug 410345, bug 409515.

Reported using DrKonqi