Bug 334829

Application: systemsettings (4.11.8)
KDE Platform Version: 4.13.0
Qt Version: 4.8.6
Operating System: Linux 3.13.0-24-generic x86_64
Distribution: Ubuntu 14.04 LTS

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

1. Enabled network time server.

2. Set UTC as the system time

- Unusual behavior I noticed:

1. Kubuntu 14.04, 64 bit, Operating System repeatedly failed after two or three startups and sometimes never started up and had to be reinstalled.

2. Even after reinstalling the OS it continued to fail.

3. The last time the OS failed was just before this problem occurred.

4. The OS reported the following information among several others when it failed:

4.1. Kernel BUG at /build/buildd/linux-3.13.0/mm/filemap.c: 1371

4.2. invlid opcode: 0000[#2]SMP

etc., etc.

4.1. Kernel panic - not syncing: Attempted to kill init! exit code: 0x0000000b

4.2. drm_kms_helper: panicoccurred, switching bact to text mode

5. Thereafter, the OS remained stuck and was restarted by powering down and powering up again. The current failure occurred shortly thereafter.

6. The following is some information on the hardware platform:

6.1. Processors: 4 x Intel Core i5 CPU M 450 @ 2.40 GHz.

6.2. Memory: 3.7 GiB of RAM

6.3. Computer System: Toshiba Notebook, Satelite, L676-01R

7. The following is some information on the software:

7.1. KDELibs Version: 4.13.0

7.2. Qt Version: 4.8.6

7.3. Kernel Version: 3.13.0-24-generic

7.4. OS Tye: 64-bit

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f852ef1c7c0 (LWP 1992))]

Thread 5 (Thread 0x7f85109bc700 (LWP 2078)):
#0  0x00007f852bf076bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8524e9ac20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8524e59b14 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8524e59f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8524e5a0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f852c68f7be in QEventDispatcherGlib::processEvents (this=0x7f850c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f852c6610af in QEventLoop::processEvents (this=this@entry=0x7f85109bbde0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f852c6613a5 in QEventLoop::exec (this=this@entry=0x7f85109bbde0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f852c55dc5f in QThread::exec (this=this@entry=0x134e250) at thread/qthread.cpp:537
#9  0x00007f852c642823 in QInotifyFileSystemWatcherEngine::run (this=0x134e250) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f852c56032f in QThreadPrivate::start (arg=0x134e250) at thread/qthread_unix.cpp:349
#11 0x00007f8525339182 in start_thread (arg=0x7f85109bc700) at pthread_create.c:312
#12 0x00007f852bf1630d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f8509185700 (LWP 2148)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8529766ffb in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f8529767039 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f8525339182 in start_thread (arg=0x7f8509185700) at pthread_create.c:312
#4  0x00007f852bf1630d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f8471ab8700 (LWP 2157)):
#0  0x00007f8524e598ff in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f8524e59f52 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8524e5a30a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8472a3ae16 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f8524e7ef15 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8525339182 in start_thread (arg=0x7f8471ab8700) at pthread_create.c:312
#6  0x00007f852bf1630d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f847086f700 (LWP 2163)):
#0  0x00007f8524e574b0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f8524e59a18 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8524e59f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8524e5a0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f852c68f7be in QEventDispatcherGlib::processEvents (this=0x7f845c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#5  0x00007f852c6610af in QEventLoop::processEvents (this=this@entry=0x7f847086ede0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f852c6613a5 in QEventLoop::exec (this=this@entry=0x7f847086ede0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f852c55dc5f in QThread::exec (this=this@entry=0x15225a0) at thread/qthread.cpp:537
#8  0x00007f852c642823 in QInotifyFileSystemWatcherEngine::run (this=0x15225a0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007f852c56032f in QThreadPrivate::start (arg=0x15225a0) at thread/qthread_unix.cpp:349
#10 0x00007f8525339182 in start_thread (arg=0x7f847086f700) at pthread_create.c:312
#11 0x00007f852bf1630d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f852ef1c7c0 (LWP 1992)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007f852c677a69 in QObject::connect (sender=sender@entry=0x22a8e30, signal=0x7f852c73c96d "timeout()", signal@entry=0x7f852c73c96c "2timeout()", receiver=receiver@entry=0x1b01270, method=0x7f846fe6c4dd "load()", method@entry=0x7f846fe6c4dc "1load()", type=Qt::AutoConnection, type@entry=Qt::AutoCompatConnection) at kernel/qobject.cpp:2583
#8  0x00007f852c67f98c in QSingleShotTimer::QSingleShotTimer (this=0x22a8e30, msec=5000, receiver=0x1b01270, member=0x7f846fe6c4dc "1load()") at kernel/qtimer.cpp:300
#9  0x00007f852c67fa4e in QTimer::singleShot (msec=msec@entry=5000, receiver=receiver@entry=0x1b01270, member=member@entry=0x7f846fe6c4dc "1load()") at kernel/qtimer.cpp:363
#10 0x00007f846fe6b423 in KclockModule::save (this=0x1b01270) at ../../../kcontrol/dateandtime/main.cpp:113
#11 0x00007f852e636327 in KCModuleProxy::save (this=<optimized out>) at ../../kutils/kcmoduleproxy.cpp:280
#12 0x00007f852e40e443 in ModuleView::moduleSave (this=<optimized out>, module=<optimized out>) at ../../../systemsettings/core/ModuleView.cpp:289
#13 0x00007f852e40fdfa in ModuleView::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=0x7fffc3b5d050, _c=<optimized out>) at ./ModuleView.moc:71
#14 0x00007f852c67687a in QMetaObject::activate (sender=0x12fa5c0, m=m@entry=0x7f852e3ef8a0 <KPushButton::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffc3b5d050) at kernel/qobject.cpp:3539
#15 0x00007f852e09c9df in KPushButton::authorized (this=<optimized out>, _t1=0x189d0e0) at ./kpushbutton.moc:142
#16 0x00007f852c67687a in QMetaObject::activate (sender=sender@entry=0x12fa5c0, m=m@entry=0x7f852dda32a0 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fffc3b5d180) at kernel/qobject.cpp:3539
#17 0x00007f852d91e0d2 in QAbstractButton::clicked (this=this@entry=0x12fa5c0, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:219
#18 0x00007f852d6819d3 in QAbstractButtonPrivate::emitClicked (this=this@entry=0x12fa880) at widgets/qabstractbutton.cpp:548
#19 0x00007f852d682b43 in QAbstractButtonPrivate::click (this=this@entry=0x12fa880) at widgets/qabstractbutton.cpp:541
#20 0x00007f852d682c2c in QAbstractButton::mouseReleaseEvent (this=0x12fa5c0, e=0x7fffc3b5d670) at widgets/qabstractbutton.cpp:1123
#21 0x00007f852d31f50a in QWidget::event (this=0x12fa5c0, event=0x7fffc3b5d670) at kernel/qwidget.cpp:8376
#22 0x00007f852d2cfe2c in QApplicationPrivate::notify_helper (this=this@entry=0xf44bc0, receiver=receiver@entry=0x12fa5c0, e=e@entry=0x7fffc3b5d670) at kernel/qapplication.cpp:4567
#23 0x00007f852d2d65dd in QApplication::notify (this=this@entry=0x7fffc3b5dec0, receiver=receiver@entry=0x12fa5c0, e=e@entry=0x7fffc3b5d670) at kernel/qapplication.cpp:4110
#24 0x00007f852dfdabaa in KApplication::notify (this=0x7fffc3b5dec0, receiver=0x12fa5c0, event=0x7fffc3b5d670) at ../../kdeui/kernel/kapplication.cpp:311
#25 0x00007f852c6624dd in QCoreApplication::notifyInternal (this=0x7fffc3b5dec0, receiver=receiver@entry=0x12fa5c0, event=event@entry=0x7fffc3b5d670) at kernel/qcoreapplication.cpp:953
#26 0x00007f852d2d5d93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#27 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x12fa5c0, event=event@entry=0x7fffc3b5d670, alienWidget=alienWidget@entry=0x12fa5c0, nativeWidget=nativeWidget@entry=0x1336210, buttonDown=buttonDown@entry=0x7f852ddb5318 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#28 0x00007f852d34a9cb in QETWidget::translateMouseEvent (this=this@entry=0x1336210, event=event@entry=0x7fffc3b5d9f0) at kernel/qapplication_x11.cpp:4634
#29 0x00007f852d34a269 in QApplication::x11ProcessEvent (this=0x7fffc3b5dec0, event=event@entry=0x7fffc3b5d9f0) at kernel/qapplication_x11.cpp:3627
#30 0x00007f852d371b02 in x11EventSourceDispatch (s=0xf45150, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#31 0x00007f8524e59e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f8524e5a048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f8524e5a0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f852c68f7be in QEventDispatcherGlib::processEvents (this=0xefcaf0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#35 0x00007f852d371bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00007f852c6610af in QEventLoop::processEvents (this=this@entry=0x7fffc3b5ddc0, flags=...) at kernel/qeventloop.cpp:149
#37 0x00007f852c6613a5 in QEventLoop::exec (this=this@entry=0x7fffc3b5ddc0, flags=...) at kernel/qeventloop.cpp:204
#38 0x00007f852c666b79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#39 0x00007f852d2ce37c in QApplication::exec () at kernel/qapplication.cpp:3828
#40 0x000000000040aadb in main (argc=3, argv=0x7fffc3b5e008) at ../../../systemsettings/app/main.cpp:49

Possible duplicates by query: bug 334601, bug 334517, bug 334461, bug 333629, bug 332878.

Reported using DrKonqi