[kdelibs] [Bug 340737] New: Crash after hanging for a while in the KDE splash screen after login

Dennis Schridde devurandom at gmx.net
Fri Nov 7 16:33:03 GMT 2014 

https://bugs.kde.org/show_bug.cgi?id=340737

            Bug ID: 340737
           Summary: Crash after hanging for a while in the KDE splash
                    screen after login
           Product: kdelibs
           Version: unspecified
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: kded
          Assignee: unassigned-bugs at kde.org
          Reporter: devurandom at gmx.net

Application: kded4 (4.14.2)
KDE Platform Version: 4.14.2
Qt Version: 4.8.6
Operating System: Linux 3.13.0-39-generic x86_64
Distribution: Ubuntu 14.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:

After I logged in, KDE hung a while at the end of the splash screen (when all
icons are already displayed), and then proceeded with some parts being crashed.

Before this happened, I changed the NSS configuration from LDAP to Winbind.
Thus all uids/gids changed, as well as the home directory of the affected user.
I compensated the latter by rsyncing and chowning all files to the new
location.

-- Backtrace:
Application: KDE Daemon (kded4), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7f106de7c0 (LWP 5045))]

Thread 5 (Thread 0x7f7ef4961700 (LWP 5047)):
#0  0x00007f7f0b03d423 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f0b03f62b in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f0b03ff03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f0b0400ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7f0f37b7be in QEventDispatcherGlib::processEvents
(this=0x7f7ef00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#5  0x00007f7f0f34d0af in QEventLoop::processEvents
(this=this at entry=0x7f7ef4960e20, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f7f0f34d3a5 in QEventLoop::exec (this=this at entry=0x7f7ef4960e20,
flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f7f0f249c5f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:537
#8  0x00007f7f0f24c32f in QThreadPrivate::start (arg=0x1834660) at
thread/qthread_unix.cpp:349
#9  0x00007f7f0b722182 in start_thread (arg=0x7f7ef4961700) at
pthread_create.c:312
#10 0x00007f7f0df4efbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f7ee8acf700 (LWP 5059)):
#0  0x00007f7f0b08161a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f0b0819a9 in g_mutex_unlock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f0b03fa20 in g_main_context_check () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f0b03ff7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7f0b0400ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7f0f37b7be in QEventDispatcherGlib::processEvents
(this=0x7f7ed00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f7f0f34d0af in QEventLoop::processEvents
(this=this at entry=0x7f7ee8acede0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f7f0f34d3a5 in QEventLoop::exec (this=this at entry=0x7f7ee8acede0,
flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f7f0f249c5f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:537
#9  0x00007f7eedbed027 in KCupsConnection::run() () from
/usr/lib/libkcupslib.so
#10 0x00007f7f0f24c32f in QThreadPrivate::start (arg=0x184fcf0) at
thread/qthread_unix.cpp:349
#11 0x00007f7f0b722182 in start_thread (arg=0x7f7ee8acf700) at
pthread_create.c:312
#12 0x00007f7f0df4efbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f7ee3fff700 (LWP 5060)):
#0  0x00007f7f0df41c6d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7f0b03ffe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f0b0400ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f0f37b7be in QEventDispatcherGlib::processEvents
(this=0x7f7ec40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f7f0f34d0af in QEventLoop::processEvents
(this=this at entry=0x7f7ee3ffee20, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f7f0f34d3a5 in QEventLoop::exec (this=this at entry=0x7f7ee3ffee20,
flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f7f0f249c5f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:537
#7  0x00007f7f0f24c32f in QThreadPrivate::start (arg=0x18b0f50) at
thread/qthread_unix.cpp:349
#8  0x00007f7f0b722182 in start_thread (arg=0x7f7ee3fff700) at
pthread_create.c:312
#9  0x00007f7f0df4efbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f7ee37fe700 (LWP 5061)):
#0  0x00007f7f0b08161a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f0b081979 in g_mutex_lock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f0b03f87b in g_main_context_query () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f0b03ff52 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7f0b0400ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7f0f37b7be in QEventDispatcherGlib::processEvents
(this=0x7f7ec80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f7f0f34d0af in QEventLoop::processEvents
(this=this at entry=0x7f7ee37fdde0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f7f0f34d3a5 in QEventLoop::exec (this=this at entry=0x7f7ee37fdde0,
flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f7f0f249c5f in QThread::exec (this=this at entry=0x18d7ea0) at
thread/qthread.cpp:537
#9  0x00007f7f0f32e823 in QInotifyFileSystemWatcherEngine::run (this=0x18d7ea0)
at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f7f0f24c32f in QThreadPrivate::start (arg=0x18d7ea0) at
thread/qthread_unix.cpp:349
#11 0x00007f7f0b722182 in start_thread (arg=0x7f7ee37fe700) at
pthread_create.c:312
#12 0x00007f7f0df4efbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f7f106de7c0 (LWP 5045)):
[KCrash Handler]
#6  QList (l=<error reading variable: Cannot access memory at address 0x48>,
this=this at entry=0x7fff8d827540) at
../../include/QtCore/../../src/corelib/tools/qlist.h:122
#7  QDBusMessage::arguments (this=0x48) at qdbusmessage.cpp:707
#8  0x00007f7f0c7082c3 in QDBusPendingReplyData::argumentAt (this=<optimized
out>, index=0) at qdbuspendingreply.cpp:270
#9  0x00007f7ee91f591c in QDBusPendingReply<unsigned int, void, void, void,
void, void, void, void>::Select<0>::Type const QDBusPendingReply<unsigned int,
void, void, void, void, void, void, void>::argumentAt<0>() const () from
/usr/lib/libNetworkManagerQt.so.1
#10 0x00007f7ee91efc35 in NetworkManager::NetworkManagerPrivate::init() () from
/usr/lib/libNetworkManagerQt.so.1
#11 0x00007f7ee91f0f1d in
NetworkManager::NetworkManagerPrivate::NetworkManagerPrivate() () from
/usr/lib/libNetworkManagerQt.so.1
#12 0x00007f7ee91f14bc in NetworkManager::notifier() () from
/usr/lib/libNetworkManagerQt.so.1
#13 0x00007f7ee94fedbe in SecretAgent::SecretAgent(QObject*) () from
/usr/lib/kde4/kded_networkmanagement.so
#14 0x00007f7ee9506d03 in NetworkManagementService::doInitialization() () from
/usr/lib/kde4/kded_networkmanagement.so
#15 0x00007f7ee9506cc8 in NetworkManagementService::finishInitialization() ()
from /usr/lib/kde4/kded_networkmanagement.so
#16 0x00007f7ee94f5e3a in ?? () from /usr/lib/kde4/kded_networkmanagement.so
#17 0x00007f7f0f36287a in QMetaObject::activate (sender=0x18d3e90,
m=m at entry=0x7f7f0c925760 <QDBusServiceWatcher::staticMetaObject>,
local_signal_index=local_signal_index at entry=0, argv=argv at entry=0x7fff8d827b60)
at kernel/qobject.cpp:3539
#18 0x00007f7f0c708732 in QDBusServiceWatcher::serviceRegistered
(this=<optimized out>, _t1=...) at
.moc/release-shared/moc_qdbusservicewatcher.cpp:145
#19 0x00007f7f0c7095e7 in QDBusServiceWatcher::qt_metacall (this=0x18d3e90,
_c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7fff8d827d30) at
.moc/release-shared/moc_qdbusservicewatcher.cpp:106
#20 0x00007f7f0c6d01f6 in QDBusConnectionPrivate::deliverCall (this=0x16583a0,
object=0x18d3e90, msg=..., metaTypes=..., slotIdx=7) at qdbusintegrator.cpp:951
#21 0x00007f7f0f366c1e in QObject::event (this=0x18d3e90, e=<optimized out>) at
kernel/qobject.cpp:1194
#22 0x00007f7f0e6e7e2c in QApplicationPrivate::notify_helper
(this=this at entry=0x1650830, receiver=receiver at entry=0x18d3e90,
e=e at entry=0x1881f80) at kernel/qapplication.cpp:4567
#23 0x00007f7f0e6ee4a0 in QApplication::notify (this=this at entry=0x7fff8d828500,
receiver=receiver at entry=0x18d3e90, e=e at entry=0x1881f80) at
kernel/qapplication.cpp:4353
#24 0x00007f7f100cdcca in KApplication::notify (this=0x7fff8d828500,
receiver=0x18d3e90, event=0x1881f80) at ../../kdeui/kernel/kapplication.cpp:311
#25 0x00007f7f0f34e4dd in QCoreApplication::notifyInternal
(this=0x7fff8d828500, receiver=receiver at entry=0x18d3e90,
event=event at entry=0x1881f80) at kernel/qcoreapplication.cpp:953
#26 0x00007f7f0f351b3d in sendEvent (event=0x1881f80, receiver=0x18d3e90) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#27 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver at entry=0x0,
event_type=event_type at entry=0, data=0x15bf150) at
kernel/qcoreapplication.cpp:1577
#28 0x00007f7f0f351fe3 in QCoreApplication::sendPostedEvents
(receiver=receiver at entry=0x0, event_type=event_type at entry=0) at
kernel/qcoreapplication.cpp:1470
#29 0x00007f7f0f37bf83 in sendPostedEvents () at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#30 postEventSourceDispatch (s=0x164ee40) at
kernel/qeventdispatcher_glib.cpp:287
#31 0x00007f7f0b03fe04 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f7f0b040048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f7f0b0400ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f7f0f37b7a1 in QEventDispatcherGlib::processEvents (this=0x15c16d0,
flags=...) at kernel/qeventdispatcher_glib.cpp:434
#35 0x00007f7f0e789bb6 in QGuiEventDispatcherGlib::processEvents
(this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00007f7f0f34d0af in QEventLoop::processEvents
(this=this at entry=0x7fff8d8283d0, flags=...) at kernel/qeventloop.cpp:149
#37 0x00007f7f0f34d3a5 in QEventLoop::exec (this=this at entry=0x7fff8d8283d0,
flags=...) at kernel/qeventloop.cpp:204
#38 0x00007f7f0f352b79 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1225
#39 0x00007f7f0e6e637c in QApplication::exec () at kernel/qapplication.cpp:3828
#40 0x00007f7efa2a8d1b in kdemain (argc=1, argv=0x162a4d0) at
../../kded/kded.cpp:940
#41 0x00000000004083ee in launch (argc=argc at entry=1, _name=_name at entry=0x40afc7
"kded4", args=args at entry=0x0, cwd=cwd at entry=0x0, envc=envc at entry=0,
envs=<optimized out>, envs at entry=0x0, reset_env=reset_env at entry=false,
tty=tty at entry=0x0, avoid_loops=avoid_loops at entry=false,
startup_id_str=startup_id_str at entry=0x40ae56 "0") at ../../kinit/kinit.cpp:738
#42 0x00000000004059a3 in main (argc=4, argv=<optimized out>,
envp=0x7fff8d828c60) at ../../kinit/kinit.cpp:1853

Reported using DrKonqi

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