[kdelibs] [Bug 322492] New: KDE crash while using disper -S to change screens

smkozasa at gmail.com smkozasa at gmail.com
Wed Jul 17 16:05:38 BST 2013 

https://bugs.kde.org/show_bug.cgi?id=322492

            Bug ID: 322492
           Summary: KDE crash while using disper -S to change screens
    Classification: Unclassified
           Product: kdelibs
           Version: 4.10.4
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: kded
          Assignee: unassigned-bugs at kde.org
          Reporter: smkozasa at gmail.com

Application: kded4 (4.10.4)
KDE Platform Version: 4.10.4
Qt Version: 4.8.4
Operating System: Linux 3.8.0-26-generic x86_64
Distribution: Ubuntu 13.04

-- Information about the crash:
I was changing from internal laptop screen to external 1920x1024 (Geforce 8200M
chipset) using the disper -l, then disper -S.
 This worked flawlessly until Kubuntu 12.10.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Serviço do KDE (kdeinit4), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f474715b7c0 (LWP 2783))]

Thread 5 (Thread 0x7f471cfcd700 (LWP 3088)):
#0  0x00007f4741ae8d50 in pthread_mutex_unlock at plt () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4741b575f1 in g_mutex_unlock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4741b17366 in g_main_context_acquire () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4741b180b4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4741b186ba in g_main_loop_run () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f471d2bd4f6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f4741b3beb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f47354b9764 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#8  0x00007f47421ecf8e in start_thread (arg=0x7f471cfcd700) at
pthread_create.c:311
#9  0x00007f47449dce1d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f4713fff700 (LWP 3100)):
#0  0x00007f47449d03cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4741b181dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4741b18304 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4745e02036 in QEventDispatcherGlib::processEvents
(this=0x7f47000008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f4745dd238f in QEventLoop::processEvents
(this=this at entry=0x7f4713ffecc0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f4745dd2618 in QEventLoop::exec (this=this at entry=0x7f4713ffecc0,
flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f4745cd4410 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:542
#7  0x00007f4727cd36e5 in KCupsConnection::run() () from
/usr/lib/libkcupslib.so
#8  0x00007f4745cd6bec in QThreadPrivate::start (arg=0x16682b0) at
thread/qthread_unix.cpp:338
#9  0x00007f47354b9764 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#10 0x00007f47421ecf8e in start_thread (arg=0x7f4713fff700) at
pthread_create.c:311
#11 0x00007f47449dce1d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f47137fe700 (LWP 3101)):
#0  0x00007f47421ef0ca in __GI___pthread_mutex_lock (mutex=0x7f4708000a90) at
pthread_mutex_lock.c:116
#1  0x00007f4741b575c1 in g_mutex_lock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4741b182f0 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4745e02036 in QEventDispatcherGlib::processEvents
(this=0x7f47080008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f4745dd238f in QEventLoop::processEvents
(this=this at entry=0x7f47137fdd00, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f4745dd2618 in QEventLoop::exec (this=this at entry=0x7f47137fdd00,
flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f4745cd4410 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:542
#7  0x00007f4745cd6bec in QThreadPrivate::start (arg=0x15fa160) at
thread/qthread_unix.cpp:338
#8  0x00007f47354b9764 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#9  0x00007f47421ecf8e in start_thread (arg=0x7f47137fe700) at
pthread_create.c:311
#10 0x00007f47449dce1d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f4712ffd700 (LWP 3102)):
#0  __lll_unlock_wake () at
../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:371
#1  0x00007f47421f0119 in _L_unlock_571 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#2  0x00007f47421f0085 in __pthread_mutex_unlock_usercnt (mutex=0x7f4735716a40,
decr=<optimized out>) at pthread_mutex_unlock.c:52
#3  0x00007f47354b3d9b in ?? () from /usr/lib/nvidia-304/libGL.so.1
#4  0x00007f47354b8776 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#5  0x00007f47342f8be7 in ?? () from
/usr/lib/nvidia-304/tls/libnvidia-tls.so.304.88
#6  0x00007f4741b566cf in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f4741b17d3c in g_main_context_check () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f4741b18175 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f4741b18304 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f4745e02036 in QEventDispatcherGlib::processEvents
(this=0x7f47040008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#11 0x00007f4745dd238f in QEventLoop::processEvents
(this=this at entry=0x7f4712ffccd0, flags=...) at kernel/qeventloop.cpp:149
#12 0x00007f4745dd2618 in QEventLoop::exec (this=this at entry=0x7f4712ffccd0,
flags=...) at kernel/qeventloop.cpp:204
#13 0x00007f4745cd4410 in QThread::exec (this=this at entry=0x19f8e00) at
thread/qthread.cpp:542
#14 0x00007f4745db3edf in QInotifyFileSystemWatcherEngine::run (this=0x19f8e00)
at io/qfilesystemwatcher_inotify.cpp:256
#15 0x00007f4745cd6bec in QThreadPrivate::start (arg=0x19f8e00) at
thread/qthread_unix.cpp:338
#16 0x00007f47354b9764 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#17 0x00007f47421ecf8e in start_thread (arg=0x7f4712ffd700) at
pthread_create.c:311
#18 0x00007f47449dce1d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f474715b7c0 (LWP 2783)):
[KCrash Handler]
#6  KScreen::Mode::refreshRate (this=this at entry=0x0) at
/build/buildd/libkscreen-0.0.92/src/mode.cpp:99
#7  0x00007f4729a00a99 in Serializer::saveConfig (config=<optimized out>) at
/build/buildd/kscreen-0.0.92/kded/serializer.cpp:129
#8  0x00007f47299fd13d in KScreenDaemon::saveCurrentConfig (this=0x162dcb0) at
/build/buildd/kscreen-0.0.92/kded/daemon.cpp:128
#9  0x00007f4745ded5be in QObject::event (this=0x162dcb0, e=<optimized out>) at
kernel/qobject.cpp:1194
#10 0x00007f47451798ec in QApplicationPrivate::notify_helper
(this=this at entry=0x12d28f0, receiver=receiver at entry=0x162dcb0,
e=e at entry=0x1acf280) at kernel/qapplication.cpp:4567
#11 0x00007f474517c25b in QApplication::notify (this=this at entry=0x7fffc9d6bde0,
receiver=receiver at entry=0x162dcb0, e=e at entry=0x1acf280) at
kernel/qapplication.cpp:4428
#12 0x00007f4746b56af6 in KApplication::notify (this=0x7fffc9d6bde0,
receiver=0x162dcb0, event=0x1acf280) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007f4745dd363e in QCoreApplication::notifyInternal
(this=0x7fffc9d6bde0, receiver=receiver at entry=0x162dcb0,
event=event at entry=0x1acf280) at kernel/qcoreapplication.cpp:946
#14 0x00007f4745dd7171 in sendEvent (event=0x1acf280, receiver=0x162dcb0) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver at entry=0x0,
event_type=event_type at entry=0, data=0x11e1150) at
kernel/qcoreapplication.cpp:1570
#16 0x00007f4745dd74a3 in QCoreApplication::sendPostedEvents
(receiver=receiver at entry=0x0, event_type=event_type at entry=0) at
kernel/qcoreapplication.cpp:1463
#17 0x00007f4745e01e83 in sendPostedEvents () at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=0x12d0da0) at
kernel/qeventdispatcher_glib.cpp:279
#19 0x00007f4741b17f05 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f4741b18248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f4741b18304 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f4745e02016 in QEventDispatcherGlib::processEvents (this=0x11e3670,
flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f474521f1ae in QGuiEventDispatcherGlib::processEvents
(this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f4745dd238f in QEventLoop::processEvents
(this=this at entry=0x7fffc9d6bb60, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f4745dd2618 in QEventLoop::exec (this=this at entry=0x7fffc9d6bb60,
flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f4745dd7cf6 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1218
#27 0x00007f4745177ffc in QApplication::exec () at kernel/qapplication.cpp:3828
#28 0x00007f47302a0050 in kdemain (argc=1, argv=0x132c360) at
../../kded/kded.cpp:925
#29 0x00000000004084ea in launch (argc=argc at entry=1, _name=_name at entry=0x40b167
"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=0x40aff6 "0") at ../../kinit/kinit.cpp:738
#30 0x0000000000405b69 in main (argc=4, argv=<optimized out>,
envp=0x7fffc9d6c7e0) at ../../kinit/kinit.cpp:1853

Reported using DrKonqi

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