https://bugs.kde.org/show_bug.cgi?id=361702
Mihai DONȚU <mihai.do...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mihai.do...@gmail.com
--- Comment #4 from Mihai DONȚU <mihai.do...@gmail.com> ---
I have the same issue and it's been happening for a while now. I just now got
the time to take a closer look. It would appear the application exits while
leaving taken semaphore in its path, leading to a deadlock when cleaning up:
#0 pthread_cond_wait () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007fbb9e5ebefa in QWaitConditionPrivate::wait
(time=18446744073709551615, this=0xad6f20) at
thread/qwaitcondition_unix.cpp:136
#2 QWaitCondition::wait (this=this@entry=0xad7298, mutex=mutex@entry=0xad7290,
time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3 0x00007fbb9e5e609b in QSemaphore::acquire (this=this@entry=0x7ffec6742f40,
n=n@entry=1) at thread/qsemaphore.cpp:137
#4 0x00007fbb9e7b192f in QMetaObject::activate (sender=sender@entry=0xad8080,
signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x7ffec6742fd0) at kernel/qobject.cpp:3698
#5 0x00007fbb9e7b1fc7 in QMetaObject::activate (sender=sender@entry=0xad8080,
m=m@entry=0x7fbb9e9c0d60 <QObject::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffec6742fd0)
at kernel/qobject.cpp:3595
#6 0x00007fbb9e7b206f in QObject::destroyed (this=this@entry=0xad8080,
_t1=_t1@entry=0xad8080) at .moc/moc_qobject.cpp:213
#7 0x00007fbb9e7b8d65 in QObject::~QObject (this=<optimized out>,
__in_chrg=<optimized out>) at kernel/qobject.cpp:913
#8 0x00007fbb92f83c39 in Breeze::Style::~Style() () from
/usr/lib64/qt5/plugins/styles/breeze.so
#9 0x00007fbb9e7b1a0e in QtPrivate::QSlotObjectBase::call (a=0x7ffec67431d0,
r=0xad8080, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#10 QMetaObject::activate (sender=sender@entry=0xad8450,
signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x7ffec67431d0) at kernel/qobject.cpp:3715
#11 0x00007fbb9e7b1fc7 in QMetaObject::activate (sender=sender@entry=0xad8450,
m=m@entry=0x7fbb9e9c0d60 <QObject::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffec67431d0)
at kernel/qobject.cpp:3595
#12 0x00007fbb9e7b206f in QObject::destroyed (this=this@entry=0xad8450,
_t1=_t1@entry=0xad8450) at .moc/moc_qobject.cpp:213
#13 0x00007fbb9e7b8d65 in QObject::~QObject (this=<optimized out>,
__in_chrg=<optimized out>) at kernel/qobject.cpp:913
#14 0x00007fbb92f96ae7 in Breeze::StylePlugin::~StylePlugin() () from
/usr/lib64/qt5/plugins/styles/breeze.so
#15 0x00007fbb9e781a23 in QLibraryPrivate::unload (this=this@entry=0xad1020,
flag=flag@entry=QLibraryPrivate::UnloadSys) at plugin/qlibrary.cpp:551
#16 0x00007fbb9e7786b2 in QFactoryLoaderPrivate::~QFactoryLoaderPrivate
(this=0xacf410, __in_chrg=<optimized out>) at plugin/qfactoryloader.cpp:88
#17 0x00007fbb9e7787e9 in QFactoryLoaderPrivate::~QFactoryLoaderPrivate
(this=0xacf410, __in_chrg=<optimized out>) at plugin/qfactoryloader.cpp:91
#18 0x00007fbb9e7b9151 in QScopedPointerDeleter<QObjectData>::cleanup
(pointer=<optimized out>) at
../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:54
#19 QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData>
>::~QScopedPointer (this=0x7fbb9f9fcae8 <(anonymous
namespace)::Q_QGS_loader::innerFunction()::holder+8>, __in_chrg=<optimized
out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:101
#20 QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at
kernel/qobject.cpp:893
#21 0x00007fbb9e7777aa in QFactoryLoader::~QFactoryLoader (this=0x7fbb9f9fcae0
<(anonymous namespace)::Q_QGS_loader::innerFunction()::holder>,
__in_chrg=<optimized out>) at plugin/qfactoryloader.cpp:226
#22 0x00007fbb9f5688c9 in (anonymous namespace)::Q_QGS_loader::Holder::~Holder
(this=<optimized out>, __in_chrg=<optimized out>) at
styles/qstylefactory.cpp:70
#23 0x00007fbb9d8d7b48 in __run_exit_handlers (status=0, listp=0x7fbb9dc35618
<__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82
#24 0x00007fbb9d8d7b95 in __GI_exit (status=<optimized out>) at exit.c:104
#25 0x00007fbba00ab3ca in
KDBusService::KDBusService(QFlags<KDBusService::StartupOption>, QObject*) ()
from /usr/lib64/libKF5DBusAddons.so.5
#26 0x0000000000410a66 in main ()
(gdb) info threads
Id Target Id Frame
* 1 Thread 0x7fbba03d97c0 (LWP 5951) "kactivitymanage" pthread_cond_wait ()
at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
When logging out, three such processes remained hanged in the same place, but
with different stacks. Here's another example:
#0 pthread_cond_wait () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f2a63e2eefa in QWaitConditionPrivate::wait
(time=18446744073709551615, this=0x18e6f60) at
thread/qwaitcondition_unix.cpp:136
#2 QWaitCondition::wait (this=this@entry=0x18e12c8,
mutex=mutex@entry=0x18e12c0, time=time@entry=18446744073709551615) at
thread/qwaitcondition_unix.cpp:208
#3 0x00007f2a63e2909b in QSemaphore::acquire (this=this@entry=0x7ffde3f33140,
n=n@entry=1) at thread/qsemaphore.cpp:137
#4 0x00007f2a63ff492f in QMetaObject::activate (sender=sender@entry=0x18e1140,
signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x7ffde3f331d0) at kernel/qobject.cpp:3698
#5 0x00007f2a63ff4fc7 in QMetaObject::activate (sender=sender@entry=0x18e1140,
m=m@entry=0x7f2a64203d60 <QObject::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffde3f331d0)
at kernel/qobject.cpp:3595
#6 0x00007f2a63ff506f in QObject::destroyed (this=this@entry=0x18e1140,
_t1=_t1@entry=0x18e1140) at .moc/moc_qobject.cpp:213
#7 0x00007f2a63ffbd65 in QObject::~QObject (this=<optimized out>,
__in_chrg=<optimized out>) at kernel/qobject.cpp:913
#8 0x00007f2a587c6c39 in Breeze::Style::~Style() () from
/usr/lib64/qt5/plugins/styles/breeze.so
#9 0x00007f2a63ff4a0e in QtPrivate::QSlotObjectBase::call (a=0x7ffde3f333d0,
r=0x18e1140, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#10 QMetaObject::activate (sender=sender@entry=0x18e19f0,
signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x7ffde3f333d0) at kernel/qobject.cpp:3715
#11 0x00007f2a63ff4fc7 in QMetaObject::activate (sender=sender@entry=0x18e19f0,
m=m@entry=0x7f2a64203d60 <QObject::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffde3f333d0)
at kernel/qobject.cpp:3595
#12 0x00007f2a63ff506f in QObject::destroyed (this=this@entry=0x18e19f0,
_t1=_t1@entry=0x18e19f0) at .moc/moc_qobject.cpp:213
#13 0x00007f2a63ffbd65 in QObject::~QObject (this=<optimized out>,
__in_chrg=<optimized out>) at kernel/qobject.cpp:913
#14 0x00007f2a587d9ae7 in Breeze::StylePlugin::~StylePlugin() () from
/usr/lib64/qt5/plugins/styles/breeze.so
#15 0x00007f2a63fc4a23 in QLibraryPrivate::unload (this=this@entry=0x18da170,
flag=flag@entry=QLibraryPrivate::UnloadSys) at plugin/qlibrary.cpp:551
#16 0x00007f2a63fbb6b2 in QFactoryLoaderPrivate::~QFactoryLoaderPrivate
(this=0x18d84b0, __in_chrg=<optimized out>) at plugin/qfactoryloader.cpp:88
#17 0x00007f2a63fbb7e9 in QFactoryLoaderPrivate::~QFactoryLoaderPrivate
(this=0x18d84b0, __in_chrg=<optimized out>) at plugin/qfactoryloader.cpp:91
#18 0x00007f2a63ffc151 in QScopedPointerDeleter<QObjectData>::cleanup
(pointer=<optimized out>) at
../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:54
#19 QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData>
>::~QScopedPointer (this=0x7f2a6523fae8 <(anonymous
namespace)::Q_QGS_loader::innerFunction()::holder+8>, __in_chrg=<optimized
out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:101
#20 QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at
kernel/qobject.cpp:893
#21 0x00007f2a63fba7aa in QFactoryLoader::~QFactoryLoader (this=0x7f2a6523fae0
<(anonymous namespace)::Q_QGS_loader::innerFunction()::holder>,
__in_chrg=<optimized out>) at plugin/qfactoryloader.cpp:226
#22 0x00007f2a64dab8c9 in (anonymous namespace)::Q_QGS_loader::Holder::~Holder
(this=<optimized out>, __in_chrg=<optimized out>) at
styles/qstylefactory.cpp:70
#23 0x00007f2a6311ab48 in __run_exit_handlers (status=0, listp=0x7f2a63478618
<__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82
#24 0x00007f2a6311ab95 in __GI_exit (status=<optimized out>) at exit.c:104
#25 0x00000000004128a9 in QtPrivate::QFunctorSlotObject<main::{lambda(QString
const&)#4}, 1, QtPrivate::List<QString const&>, void>::impl(int,
QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) ()
#26 0x00007f2a63ff4a0e in QtPrivate::QSlotObjectBase::call (a=0x7ffde3f33820,
r=0x7ffde3f340b0, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#27 QMetaObject::activate (sender=0x7ffde3f340b0, signalOffset=<optimized out>,
local_signal_index=<optimized out>, argv=<optimized out>) at
kernel/qobject.cpp:3715
#28 0x00007f2a65ca4f02 in QDBusServiceWatcher::serviceRegistered(QString
const&) () from /usr/lib64/libQt5DBus.so.5
#29 0x00007f2a65ca56cf in QDBusServiceWatcher::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) () from /usr/lib64/libQt5DBus.so.5
#30 0x00007f2a65ca5aa0 in QDBusServiceWatcher::qt_metacall(QMetaObject::Call,
int, void**) () from /usr/lib64/libQt5DBus.so.5
#31 0x00007f2a65c590b3 in QDBusConnectionPrivate::deliverCall(QObject*, int,
QDBusMessage const&, QVector<int> const&, int) () from
/usr/lib64/libQt5DBus.so.5
#32 0x00007f2a63ff57c1 in QObject::event (this=0x7ffde3f340b0, e=<optimized
out>) at kernel/qobject.cpp:1256
#33 0x00007f2a64d3faac in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x7ffde3f340b0, e=0x7f2a4c009040) at
kernel/qapplication.cpp:3714
#34 0x00007f2a64d44cee in QApplication::notify (this=0x7ffde3f340c0,
receiver=0x7ffde3f340b0, e=0x7f2a4c009040) at kernel/qapplication.cpp:3495
#35 0x00007f2a63fccd2a in QCoreApplication::notifyInternal2
(receiver=0x7ffde3f340b0, event=event@entry=0x7f2a4c009040) at
kernel/qcoreapplication.cpp:1015
#36 0x00007f2a63fced7a in QCoreApplication::sendEvent (event=0x7f2a4c009040,
receiver=<optimized out>) at kernel/qcoreapplication.h:227
#37 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0,
event_type=event_type@entry=0, data=0x189b540) at
kernel/qcoreapplication.cpp:1650
#38 0x00007f2a63fcf238 in QCoreApplication::sendPostedEvents
(receiver=receiver@entry=0x0, event_type=event_type@entry=0) at
kernel/qcoreapplication.cpp:1508
#39 0x00007f2a6401bd13 in postEventSourceDispatch (s=0x18c80b0) at
kernel/qeventdispatcher_glib.cpp:270
#40 0x00007f2a5e598f57 in g_main_dispatch (context=0x7f2a540016f0) at
/var/tmp/portage/dev-libs/glib-2.48.0-r1/work/glib-2.48.0/glib/gmain.c:3154
#41 g_main_context_dispatch (context=context@entry=0x7f2a540016f0) at
/var/tmp/portage/dev-libs/glib-2.48.0-r1/work/glib-2.48.0/glib/gmain.c:3769
#42 0x00007f2a5e5991b0 in g_main_context_iterate
(context=context@entry=0x7f2a540016f0, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/var/tmp/portage/dev-libs/glib-2.48.0-r1/work/glib-2.48.0/glib/gmain.c:3840
#43 0x00007f2a5e59925c in g_main_context_iteration (context=0x7f2a540016f0,
may_block=may_block@entry=1) at
/var/tmp/portage/dev-libs/glib-2.48.0-r1/work/glib-2.48.0/glib/gmain.c:3901
#44 0x00007f2a6401bd8f in QEventDispatcherGlib::processEvents (this=0x18cde00,
flags=...) at kernel/qeventdispatcher_glib.cpp:417
#45 0x00007f2a63fcbbba in QEventLoop::exec (this=this@entry=0x7ffde3f33f70,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#46 0x00007f2a63fd36dc in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1285
#47 0x0000000000410428 in main ()
(gdb) info threads
Id Target Id Frame
* 1 Thread 0x7f2a65c1c7c0 (LWP 5575) "kactivitymanage" pthread_cond_wait ()
at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
--
You are receiving this mail because:
You are watching all bug changes.
