Bug 318244

Summary: kded crashes dues to kscreen
Product: [Plasma] KScreen Reporter: Jens Mohr <jens>
Component: kdedAssignee: Alex Fiestas <afiestas>
Status: RESOLVED FIXED    
Severity: major CC: dvratil, jens
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Jens Mohr 2013-04-12 15:50:15 UTC 
Application: kded4 ($Id$)
KDE Platform Version: 4.10.2
Qt Version: 4.8.3
Operating System: Linux 3.7.0-7-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
Start KDE (after login)

The crash can be reproduced every time.

-- Backtrace:
Application: KDE-Dienst (kdeinit4), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fab33361780 (LWP 2888))]

Thread 5 (Thread 0x7fab172c0700 (LWP 2896)):
#0  0x00007fab3855c303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fab35458d84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fab35458ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fab39988c46 in QEventDispatcherGlib::processEvents (this=0x7fab100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fab399592ef in QEventLoop::processEvents (this=this@entry=0x7fab172bfdd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fab39959578 in QEventLoop::exec (this=0x7fab172bfdd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fab3985ab40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fab399399df in QInotifyFileSystemWatcherEngine::run (this=0x2246340) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fab3985db1c in QThreadPrivate::start (arg=0x2246340) at thread/qthread_unix.cpp:338
#9  0x00007fab35d31e9a in start_thread (arg=0x7fab172c0700) at pthread_create.c:308
#10 0x00007fab38567cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fab07473700 (LWP 2903)):
#0  0x00007fab35495ba5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fab35495e19 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fab35458623 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fab35458cab in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fab35458ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fab39988c46 in QEventDispatcherGlib::processEvents (this=0x7faaf00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fab399592ef in QEventLoop::processEvents (this=this@entry=0x7fab07472dc0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fab39959578 in QEventLoop::exec (this=0x7fab07472dc0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fab3985ab40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fab202db745 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#10 0x00007fab3985db1c in QThreadPrivate::start (arg=0x20f7b10) at thread/qthread_unix.cpp:338
#11 0x00007fab35d31e9a in start_thread (arg=0x7fab07473700) at pthread_create.c:308
#12 0x00007fab38567cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fab06c72700 (LWP 2904)):
#0  0x00007fab3855c303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fab35458d84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fab35458ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fab39988c46 in QEventDispatcherGlib::processEvents (this=0x7faaf40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fab399592ef in QEventLoop::processEvents (this=this@entry=0x7fab06c71e00, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fab39959578 in QEventLoop::exec (this=0x7fab06c71e00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fab3985ab40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fab3985db1c in QThreadPrivate::start (arg=0x20abec0) at thread/qthread_unix.cpp:338
#8  0x00007fab35d31e9a in start_thread (arg=0x7fab06c72700) at pthread_create.c:308
#9  0x00007fab38567cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fab06471700 (LWP 2906)):
#0  __pthread_mutex_lock (mutex=0x7faae8000a60) at pthread_mutex_lock.c:92
#1  0x00007fab35495e21 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fab35458193 in g_main_context_release () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fab35458d35 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fab35458ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fab39988c46 in QEventDispatcherGlib::processEvents (this=0x7faae80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fab399592ef in QEventLoop::processEvents (this=this@entry=0x7fab06470dd0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fab39959578 in QEventLoop::exec (this=0x7fab06470dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fab3985ab40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fab399399df in QInotifyFileSystemWatcherEngine::run (this=0x2170b90) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fab3985db1c in QThreadPrivate::start (arg=0x2170b90) at thread/qthread_unix.cpp:338
#11 0x00007fab35d31e9a in start_thread (arg=0x7fab06471700) at pthread_create.c:308
#12 0x00007fab38567cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fab33361780 (LWP 2888)):
[KCrash Handler]
#6  KScreen::Mode::size (this=0x0) at /build/buildd/libkscreen-0.0.71/src/mode.cpp:84
#7  0x00007fab146b8d20 in Generator::biggestOutput (this=this@entry=0x2506950, outputs=...) at /build/buildd/kscreen-0.0.71/kded/generator.cpp:369
#8  0x00007fab146b9618 in Generator::laptop (this=0x2506950, outputs=...) at /build/buildd/kscreen-0.0.71/kded/generator.cpp:274
#9  0x00007fab146b9eb5 in Generator::idealConfig (this=0x2506950) at /build/buildd/kscreen-0.0.71/kded/generator.cpp:79
#10 0x00007fab146b406b in KScreenDaemon::applyIdealConfig (this=<optimized out>) at /build/buildd/kscreen-0.0.71/kded/daemon.cpp:95
#11 0x00007fab146b41ed in KScreenDaemon::applyConfig (this=0x24fe210) at /build/buildd/kscreen-0.0.71/kded/daemon.cpp:82
#12 0x00007fab3996ff8f in QMetaObject::activate (sender=0x2506950, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#13 0x00007fab3996ff8f in QMetaObject::activate (sender=0x2503240, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#14 0x00007fab146bc00a in fetchIsDocked (this=0x2503240) at /build/buildd/kscreen-0.0.71/kded/device.cpp:153
#15 Device::isLidClosedFetched (this=0x2503240, watcher=0x25b7470) at /build/buildd/kscreen-0.0.71/kded/device.cpp:148
#16 0x00007fab3996ff8f in QMetaObject::activate (sender=0x25b7470, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff49f5beb0) at kernel/qobject.cpp:3547
#17 0x00007fab36d0b13f in QDBusPendingCallWatcher::finished (this=<optimized out>, _t1=0x25b7470) at .moc/release-shared/moc_qdbuspendingcall.cpp:106
#18 0x00007fab3996f46e in QObject::event (this=0x25b7470, e=<optimized out>) at kernel/qobject.cpp:1195
#19 0x00007fab38d01e9c in QApplicationPrivate::notify_helper (this=this@entry=0x1fb6580, receiver=receiver@entry=0x25b7470, e=e@entry=0x24b6480) at kernel/qapplication.cpp:4562
#20 0x00007fab38d0630a in QApplication::notify (this=0x7fff49f5d8f0, receiver=0x25b7470, e=0x24b6480) at kernel/qapplication.cpp:4423
#21 0x00007fab3a6d4ad6 in KApplication::notify (this=0x7fff49f5d8f0, receiver=0x25b7470, event=0x24b6480) at ../../kdeui/kernel/kapplication.cpp:311
#22 0x00007fab3995a59e in QCoreApplication::notifyInternal (this=0x7fff49f5d8f0, receiver=receiver@entry=0x25b7470, event=event@entry=0x24b6480) at kernel/qcoreapplication.cpp:915
#23 0x00007fab3995e421 in sendEvent (event=0x24b6480, receiver=0x25b7470) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1f1f2b0) at kernel/qcoreapplication.cpp:1539
#25 0x00007fab39988a93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#26 postEventSourceDispatch (s=0x1fb7b00) at kernel/qeventdispatcher_glib.cpp:279
#27 0x00007fab35458ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007fab35458de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007fab35458ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007fab39988c26 in QEventDispatcherGlib::processEvents (this=0x1f217d0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#31 0x00007fab38da6c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#32 0x00007fab399592ef in QEventLoop::processEvents (this=this@entry=0x7fff49f5c910, flags=...) at kernel/qeventloop.cpp:149
#33 0x00007fab39959578 in QEventLoop::exec (this=0x7fff49f5c910, flags=...) at kernel/qeventloop.cpp:204
#34 0x00007fab36cd5bc6 in QDBusConnectionPrivate::sendWithReply (this=0x21bb3b0, message=..., sendMode=<optimized out>, timeout=-1) at qdbusintegrator.cpp:1929
#35 0x00007fab36cc37fb in QDBusConnection::call (this=0x7fff49f5cae0, message=..., mode=<optimized out>, timeout=<optimized out>) at qdbusconnection.cpp:597
#36 0x00007fab1d213258 in ?? () from /usr/lib/kde4/kded_colord.so
#37 0x00007fab1d2162a3 in ?? () from /usr/lib/kde4/kded_colord.so
#38 0x00007fab1d218449 in ?? () from /usr/lib/kde4/kded_colord.so
#39 0x00007fab3996f46e in QObject::event (this=0x21debe0, e=<optimized out>) at kernel/qobject.cpp:1195
#40 0x00007fab38d01e9c in QApplicationPrivate::notify_helper (this=this@entry=0x1fb6580, receiver=receiver@entry=0x21debe0, e=e@entry=0x21cad90) at kernel/qapplication.cpp:4562
#41 0x00007fab38d0630a in QApplication::notify (this=0x7fff49f5d8f0, receiver=0x21debe0, e=0x21cad90) at kernel/qapplication.cpp:4423
#42 0x00007fab3a6d4ad6 in KApplication::notify (this=0x7fff49f5d8f0, receiver=0x21debe0, event=0x21cad90) at ../../kdeui/kernel/kapplication.cpp:311
#43 0x00007fab3995a59e in QCoreApplication::notifyInternal (this=0x7fff49f5d8f0, receiver=receiver@entry=0x21debe0, event=event@entry=0x21cad90) at kernel/qcoreapplication.cpp:915
#44 0x00007fab3995e421 in sendEvent (event=0x21cad90, receiver=0x21debe0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#45 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1f1f2b0) at kernel/qcoreapplication.cpp:1539
#46 0x00007fab39988a93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#47 postEventSourceDispatch (s=0x1fb7b00) at kernel/qeventdispatcher_glib.cpp:279
#48 0x00007fab35458ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#49 0x00007fab35458de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#50 0x00007fab35458ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007fab39988c26 in QEventDispatcherGlib::processEvents (this=0x1f217d0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#52 0x00007fab38da6c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#53 0x00007fab399592ef in QEventLoop::processEvents (this=this@entry=0x7fff49f5d670, flags=...) at kernel/qeventloop.cpp:149
#54 0x00007fab39959578 in QEventLoop::exec (this=0x7fff49f5d670, flags=...) at kernel/qeventloop.cpp:204
#55 0x00007fab3995e738 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#56 0x00007fab2610c3f0 in kdemain (argc=1, argv=0x1f98dc0) at ../../kded/kded.cpp:924
#57 0x00000000004084c6 in launch (argc=argc@entry=1, _name=_name@entry=0x40b127 "kded4", args=args@entry=0x0, cwd=cwd@entry=0x0, envc=envc@entry=0, envs=<optimized out>, envs@entry=0x0, reset_env=reset_env@entry=false, tty=tty@entry=0x0, avoid_loops=avoid_loops@entry=false, startup_id_str=startup_id_str@entry=0x40afb6 "0") at ../../kinit/kinit.cpp:738
#58 0x0000000000405a29 in main (argc=4, argv=<optimized out>, envp=0x7fff49f5e2f0) at ../../kinit/kinit.cpp:1853


Reproducible: Always

Steps to Reproduce:
1. Login in KDE
Actual Results:  
kded crashes

Expected Results:  
- krash handler starts
- cannot upload Information kded is not running

Now i have seen the Problem is with second Monitor. Without all runs fine.
Comment 1 Alex Fiestas 2013-04-12 22:06:21 UTC 
This bug has been fixed in 0.0.81 or RC1, can you upgrade and try again please?
Comment 2 Alex Fiestas 2013-04-25 15:30:30 UTC 
Closing the bug, I'm quite certain we fixed it.

Please if I'm mistaken feel free to reopen the bug adding the following information:

-kdebugdialog: kded, kscreen, ksrandr
-kquitapp kded
-kded4
-Reproduce the bug
-Provide kded output

Thanks !
Comment 3 Jens Mohr 2013-04-26 14:26:56 UTC 
OK! after upgrade last Night to kubuntu 13.04. the problem ist fixed.

greetings 

Jens