Bug 286126

Summary: Nepomuk crashes on logout
Product: [Unmaintained] nepomuk Reporter: Stefán Freyr Stefánsson <stefan.freyr>
Component: storageAssignee: Sebastian Trueg <sebastian>
Status: RESOLVED DUPLICATE    
Severity: crash CC: adrianandnicola, biby, jayhacker, martin.erwin.baier, me, reg.varie, trueg
Priority: NOR    
Version: 4.7   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description Stefán Freyr Stefánsson 2011-11-08 18:38:20 UTC 
Application: nepomukservicestub (0.2)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic-pae i686
Distribution: Ubuntu 11.10

-- Information about the crash:
When I logged out of KDE the Nepomuk application crashed. Foobar

-- Backtrace:
Application: Nepomuk Service Stub (nepomukservicestub), signal: Segmentation fault
[Current thread is 1 (Thread 0xb5522710 (LWP 2512))]

Thread 7 (Thread 0xb2739b70 (LWP 2612)):
#0  0xb5ec0d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb75467d5 in do_gettime (frac=0xb2739020, sec=0xb2739018) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb76194b6 in QTimerInfoList::updateCurrentTime (this=0x92a51ec) at kernel/qeventdispatcher_unix.cpp:339
#4  0xb761980a in QTimerInfoList::timerWait (this=0x92a51ec, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb7618053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xb273912c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb76180ed in timerSourcePrepare (source=0x92a51b8, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb5e0688c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb5e07637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb5e07c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb7618b37 in QEventDispatcherGlib::processEvents (this=0x92a5230, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb75e91dd in QEventLoop::processEvents (this=0xb27392b0, flags=...) at kernel/qeventloop.cpp:149
#12 0xb75e9421 in QEventLoop::exec (this=0xb27392b0, flags=...) at kernel/qeventloop.cpp:201
#13 0xb74ec90b in QThread::exec (this=0x92a2ab8) at thread/qthread.cpp:498
#14 0xb75c9e2d in QInotifyFileSystemWatcherEngine::run (this=0x92a2ab8) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb74ef7b3 in QThreadPrivate::start (arg=0x92a2ab8) at thread/qthread_unix.cpp:331
#16 0xb5eedd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0xb5fd40ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 6 (Thread 0xacdfbb70 (LWP 2788)):
#0  0xb7745424 in __kernel_vsyscall ()
#1  0xb5ef1a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb5fe1cfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb74efcc0 in wait (time=4294967295, this=0x92a9a40) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x92bb33c, mutex=0x92bb338, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0xb74e36e4 in QThreadPoolThread::run (this=0x965b7f8) at concurrent/qthreadpool.cpp:140
#6  0xb74ef7b3 in QThreadPrivate::start (arg=0x965b7f8) at thread/qthread_unix.cpp:331
#7  0xb5eedd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb5fd40ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 5 (Thread 0xb1f38b70 (LWP 2789)):
#0  0xb7745424 in __kernel_vsyscall ()
#1  0xb5ef1a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb5fe1cfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb74efcc0 in wait (time=4294967295, this=0x92a9a40) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x92bb33c, mutex=0x92bb338, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0xb74e36e4 in QThreadPoolThread::run (this=0x928d818) at concurrent/qthreadpool.cpp:140
#6  0xb74ef7b3 in QThreadPrivate::start (arg=0x928d818) at thread/qthread_unix.cpp:331
#7  0xb5eedd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb5fd40ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 4 (Thread 0xabdf9b70 (LWP 5176)):
#0  0xb7745424 in __kernel_vsyscall ()
#1  0xb5ef1a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb5fe1cfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb74efcc0 in wait (time=4294967295, this=0x92a9a40) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x92bb33c, mutex=0x92bb338, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0xb74e36e4 in QThreadPoolThread::run (this=0x95ec670) at concurrent/qthreadpool.cpp:140
#6  0xb74ef7b3 in QThreadPrivate::start (arg=0x95ec670) at thread/qthread_unix.cpp:331
#7  0xb5eedd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb5fd40ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xab5f8b70 (LWP 6112)):
[KCrash Handler]
#7  0x00000000 in ?? ()
#8  0xb75ea19e in QCoreApplication::notifyInternal (this=0xbf9b80e4, receiver=0x92c2228, event=0xab5f8094) at kernel/qcoreapplication.cpp:787
#9  0xb76181d8 in sendEvent (event=0xab5f8094, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#10 socketNotifierSourceDispatch (source=0x9271a98) at kernel/qeventdispatcher_glib.cpp:110
#11 0xb5e0725f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#12 0xb5e07990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#13 0xb5e07c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#14 0xb7618ada in QEventDispatcherGlib::processEvents (this=0x929d910, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#15 0xb75e91dd in QEventLoop::processEvents (this=0xab5f8290, flags=...) at kernel/qeventloop.cpp:149
#16 0xb75e9421 in QEventLoop::exec (this=0xab5f8290, flags=...) at kernel/qeventloop.cpp:201
#17 0xb74ec90b in QThread::exec (this=0x9270760) at thread/qthread.cpp:498
#18 0xb3a8846c in ?? () from /usr/lib/libsopranoserver.so.1
#19 0xb74ef7b3 in QThreadPrivate::start (arg=0x9270760) at thread/qthread_unix.cpp:331
#20 0xb5eedd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#21 0xb5fd40ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xaa5f6b70 (LWP 6153)):
#0  0xb5eefd8f in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb5fe1f14 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb5e06ceb in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb5e078f0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb5e07c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb7618b37 in QEventDispatcherGlib::processEvents (this=0x928e210, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb75e91dd in QEventLoop::processEvents (this=0xaa5f6290, flags=...) at kernel/qeventloop.cpp:149
#7  0xb75e9421 in QEventLoop::exec (this=0xaa5f6290, flags=...) at kernel/qeventloop.cpp:201
#8  0xb74ec90b in QThread::exec (this=0x92ab730) at thread/qthread.cpp:498
#9  0xb3a8846c in ?? () from /usr/lib/libsopranoserver.so.1
#10 0xb74ef7b3 in QThreadPrivate::start (arg=0x92ab730) at thread/qthread_unix.cpp:331
#11 0xb5eedd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb5fd40ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb5522710 (LWP 2512)):
#0  0xb7745424 in __kernel_vsyscall ()
#1  0xb5ef1a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb5fe1cfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb74efcc0 in wait (time=4294967295, this=0x9291c00) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x91c5f70, mutex=0x91c5f58, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0xb74ef475 in QThread::wait (this=0x9270760, time=4294967295) at thread/qthread_unix.cpp:745
#6  0xb3a8783a in ?? () from /usr/lib/libsopranoserver.so.1
#7  0xb3a8ef4a in ?? () from /usr/lib/libsopranoserver.so.1
#8  0xb3a83a66 in Soprano::Server::ServerCore::~ServerCore() () from /usr/lib/libsopranoserver.so.1
#9  0xb3ad6920 in Nepomuk::Core::~Core (this=0x91c9fc8, __in_chrg=<optimized out>) at ../../../../nepomuk/services/storage/nepomukcore.cpp:45
#10 0xb3ad6a12 in Nepomuk::Core::~Core (this=0x91c9fc8, __in_chrg=<optimized out>) at ../../../../nepomuk/services/storage/nepomukcore.cpp:48
#11 0xb75fe841 in QObjectPrivate::deleteChildren (this=0x91c9710) at kernel/qobject.cpp:1955
#12 0xb7603439 in QObject::~QObject (this=0x91c6d40, __in_chrg=<optimized out>) at kernel/qobject.cpp:946
#13 0xb6c86f98 in Nepomuk::Service::~Service (this=0x91c6d40, __in_chrg=<optimized out>) at ../../nepomuk/core/nepomukservice.cpp:41
#14 0xb3ad57da in ~Storage (this=0x91c6d40, __in_chrg=<optimized out>) at ../../../../nepomuk/services/storage/storage.cpp:54
#15 Nepomuk::Storage::~Storage (this=0x91c6d40, __in_chrg=<optimized out>) at ../../../../nepomuk/services/storage/storage.cpp:56
#16 0xb75fe841 in QObjectPrivate::deleteChildren (this=0x91c6c20) at kernel/qobject.cpp:1955
#17 0xb7603439 in QObject::~QObject (this=0x91c4638, __in_chrg=<optimized out>) at kernel/qobject.cpp:946
#18 0x0804b920 in Nepomuk::ServiceControl::~ServiceControl (this=0x91c4638, __in_chrg=<optimized out>) at ../../../nepomuk/servicestub/servicecontrol.cpp:39
#19 0xb75fe841 in QObjectPrivate::deleteChildren (this=0x90c5a50) at kernel/qobject.cpp:1955
#20 0xb7603439 in QObject::~QObject (this=0xbf9b80e4, __in_chrg=<optimized out>) at kernel/qobject.cpp:946
#21 0xb75ed648 in QCoreApplication::~QCoreApplication (this=0xbf9b80e4, __in_chrg=<optimized out>) at kernel/qcoreapplication.cpp:671
#22 0xb62cc943 in QApplication::~QApplication (this=0xbf9b80e4, __in_chrg=<optimized out>) at kernel/qapplication.cpp:1093
#23 0xb6eec378 in KApplication::~KApplication (this=0xbf9b80e4, __in_chrg=<optimized out>) at ../../kdeui/kernel/kapplication.cpp:894
#24 0x0804aecb in main (argc=) at ../../../nepomuk/servicestub/main.cpp:102

This bug may be a duplicate of or related to bug 285934.

Possible duplicates by query: bug 286059, bug 285959, bug 285934, bug 285284, bug 285259.

Reported using DrKonqi
Comment 1 Sebastian Trueg 2011-11-16 14:38:07 UTC 
*** Bug 286141 has been marked as a duplicate of this bug. ***
Comment 2 Sebastian Trueg 2011-11-16 14:38:21 UTC 
*** Bug 286279 has been marked as a duplicate of this bug. ***
Comment 3 Adrian 2011-11-19 23:27:38 UTC 
Created attachment 65856 [details]
New crash information added by DrKonqi

nepomukservicestub (0.2) on KDE Platform 4.7.2 (4.7.2) using Qt 4.7.4

- What I was doing when the application crashed:
Logging out of KDE. KDE is installed on Ubuntu 11.10 alongside unity. While logging out, the application crashed with an error message.

-- Backtrace (Reduced):
#7  0x00007fc031779afc in QCoreApplication::notifyInternal (this=0x7fff85709170, receiver=0x1dc60b0, event=0x7fc012ffcb50) at kernel/qcoreapplication.cpp:787
#8  0x00007fc0317a45b7 in sendEvent (event=0x7fc012ffcb50, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#9  socketNotifierSourceDispatch (source=0x1d9f9a0) at kernel/qeventdispatcher_glib.cpp:110
[...]
#13 0x00007fc0317a4ed6 in QEventDispatcherGlib::processEvents (this=0x1dd0f30, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#14 0x00007fc031778cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
Comment 4 Beat Wolf 2011-11-21 15:25:44 UTC 
*** Bug 287103 has been marked as a duplicate of this bug. ***
Comment 5 Sebastian Trueg 2011-11-23 09:56:43 UTC 
Slightly different backtrace but the same problem: The QCoreApplication destructor triggers code that itself requires a fully functional QCoreApplication.

*** This bug has been marked as a duplicate of bug 257176 ***
Comment 6 Sebastian Trueg 2011-11-23 12:44:06 UTC 
*** Bug 287366 has been marked as a duplicate of this bug. ***