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List:       kde-bugs-dist
Subject:    [Bug 290288] New: kmix crashes when trying to adjust sound level
From:       Silviu C. <silviucc () gmail ! com>
Date:       2011-12-31 23:09:37
Message-ID: bug-290288-17878 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=290288

           Summary: kmix crashes when trying to adjust sound level
           Product: kmix
           Version: 4
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: esken@kde.org
        ReportedBy: silviucc@gmail.com


Application: kmix (4)
KDE Platform Version: 4.7.95 (4.8 RC1 (4.7.95)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
 I was listening to music with amarok. If I click on the kmix icon I see amarok
and the song it's playing.. When the song chnages, the info presented there is
not changed and if I attempt to adjust the sound level it crashes If you
actually open the Kmix by pressing the "Mixer" button then you can see that
songs get updated as they change and you can adjust the sound level.

So the crash only happens when trying to adjust the sound level after you click
on the kmix icon in systray.

The crash can be reproduced every time.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fb843a207c0 (LWP 8307))]

Thread 3 (Thread 0x7fb8232c4700 (LWP 8308)):
#0  0xffffffffff60014c in ?? ()
#1  0x00007fb8232c39f0 in ?? ()
#2  0x00007fff4337d7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 2 (Thread 0x7fb8228b8700 (LWP 8309)):
#0  0x00007fb8432f9773 in __GI___poll (fds=<optimized out>, nfds=<optimized
out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb839482f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb839483429 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb8400baf3e in QEventDispatcherGlib::processEvents (this=0x25d8310,
flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb84008ecf2 in QEventLoop::processEvents (this=<optimized out>,
flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fb84008eef7 in QEventLoop::exec (this=0x7fb8228b7cd0, flags=...) at
kernel/qeventloop.cpp:201
#6  0x00007fb83ffa627f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:498
#7  0x00007fb840071cbf in QInotifyFileSystemWatcherEngine::run (this=0x25d6c40)
at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fb83ffa8d05 in QThreadPrivate::start (arg=0x25d6c40) at
thread/qthread_unix.cpp:331
#9  0x00007fb8351c756c in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#10 0x00007fb839fecefc in start_thread (arg=0x7fb8228b8700) at
pthread_create.c:304
#11 0x00007fb84330589d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb843a207c0 (LWP 8307)):
[KCrash Handler]
#6  0x00000000025e4600 in ?? ()
#7  0x00007fb843618f72 in MDWSlider::volumeChange (this=<optimized out>) at
../../kmix/gui/mdwslider.cpp:854
#8  0x00007fb84361b517 in MDWSlider::qt_metacall (this=0x2594320,
_c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x7fff432a81e0) at
./mdwslider.moc:121
#9  0x00007fb8400a2eba in QMetaObject::activate (sender=0x25929b0, m=<optimized
out>, local_signal_index=<optimized out>, argv=0x7fff432a81e0) at
kernel/qobject.cpp:3278
#10 0x00007fb84137aa4e in QAbstractSlider::valueChanged (this=<optimized out>,
_t1=48637) at .moc/release-shared/moc_qabstractslider.cpp:182
#11 0x00007fb84115560a in QSlider::mouseMoveEvent (this=0x25929b0,
ev=<optimized out>) at widgets/qslider.cpp:514
#12 0x00007fb840d59cce in QWidget::event (this=0x25929b0, event=0x7fff432a8910)
at kernel/qwidget.cpp:8280
#13 0x00007fb840d09424 in notify_helper (e=0x7fff432a8910, receiver=0x25929b0,
this=0x2166cf0) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x2166cf0, receiver=0x25929b0,
e=0x7fff432a8910) at kernel/qapplication.cpp:4458
#15 0x00007fb840d0ec6b in QApplication::notify (this=<optimized out>,
receiver=0x25929b0, e=0x7fff432a8910) at kernel/qapplication.cpp:4047
#16 0x00007fb842897a46 in KApplication::notify (this=0x21537b0,
receiver=0x25929b0, event=0x7fff432a8910) at
../../kdeui/kernel/kapplication.cpp:311
#17 0x00007fb84008fafc in QCoreApplication::notifyInternal (this=0x21537b0,
receiver=0x25929b0, event=0x7fff432a8910) at kernel/qcoreapplication.cpp:787
#18 0x00007fb840d0a3f2 in sendEvent (event=<optimized out>, receiver=<optimized
out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QApplicationPrivate::sendMouseEvent (receiver=0x25929b0,
event=0x7fff432a8910, alienWidget=0x25929b0, nativeWidget=0x257ba00,
buttonDown=0x25929b0, lastMouseReceiver=..., spontaneous=true) at
kernel/qapplication.cpp:3146
#20 0x00007fb840d8a001 in QETWidget::translateMouseEvent (this=0x257ba00,
event=<optimized out>) at kernel/qapplication_x11.cpp:4502
#21 0x00007fb840d888be in QApplication::x11ProcessEvent (this=0x21537b0,
event=0x7fff432a9130) at kernel/qapplication_x11.cpp:3690
#22 0x00007fb840db1412 in x11EventSourceDispatch (s=0x21636b0, callback=0,
user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#23 0x00007fb839482a5d in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fb839483258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fb839483429 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fb8400baed6 in QEventDispatcherGlib::processEvents (this=0x20edf40,
flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#27 0x00007fb840db107e in QGuiEventDispatcherGlib::processEvents
(this=<optimized out>, flags=<optimized out>) at
kernel/qguieventdispatcher_glib.cpp:204
#28 0x00007fb84008ecf2 in QEventLoop::processEvents (this=<optimized out>,
flags=...) at kernel/qeventloop.cpp:149
#29 0x00007fb84008eef7 in QEventLoop::exec (this=0x7fff432a9500, flags=...) at
kernel/qeventloop.cpp:201
#30 0x00007fb840093789 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1064
#31 0x00007fb843604ad2 in kdemain (argc=5, argv=0x7fff432a9a88) at
../../kmix/apps/main.cpp:76
#32 0x00007fb84324530d in __libc_start_main (main=0x400640 <main(int, char**)>,
argc=5, ubp_av=0x7fff432a9a88, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fff432a9a78) at libc-start.c:226
#33 0x0000000000400671 in _start ()

Reported using DrKonqi

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