[Bug 301866] New: systemsettings segfault when testing Phonon playback devices

[Stuart Brightwell]

https://bugs.kde.org/show_bug.cgi?id=301866

            Bug ID: 301866
          Severity: crash
           Version: 1.0
          Priority: NOR
          Assignee: unassigned-bugs at kde.org
           Summary: systemsettings segfault when testing Phonon playback
                    devices
    Classification: Unclassified
                OS: Linux
          Reporter: sbrightwell at iinet.net.au
          Hardware: Fedora RPMs
            Status: UNCONFIRMED
         Component: general
           Product: systemsettings

Application: systemsettings (1.0)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.2
Operating System: Linux 3.4.0-1.fc17.x86_64 x86_64
Distribution: "Fedora release 17 (Beefy Miracle)"

-- Information about the crash:
I am getting a crash when pressing TEST on kde systemsettings in the Phonon
Device Preferences tab, yet I can hear audio when I use the TEST function on
the Audio Hardware Setup tab.

If I use root however all is fine.

Possibly related is that I also get a segfault when attempting to start Amarok,
yet it works from root.

Problem has existed since preupgrade from Fedora 15.  Have tried removing
phonondevicesrc in my kde/share/config folder.  Not sure what else to try, I
gather some sort of permission problem?

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
82    T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[KCrash Handler]
#5  Phonon::Gstreamer::Pipeline::setState (this=0x0, state=GST_STATE_PLAYING)
at /usr/src/debug/phonon-backend-gstreamer-4.6.0/gstreamer/pipeline.cpp:220
#6  0x00007f2ac7b53269 in ?? () from /usr/lib64/kde4/kcm_phonon.so
#7  0x00007f2ac7b598ab in ?? () from /usr/lib64/kde4/kcm_phonon.so
#8  0x0000003cdf18cd63 in QMetaObject::activate (sender=0x15dbd50, m=<optimized
out>, local_signal_index=<optimized out>, argv=0x7fff0be276e0) at
kernel/qobject.cpp:3566
#9  0x0000003fbf42ed22 in QAbstractButton::toggled (this=<optimized out>,
_t1=true) at .moc/release-shared/moc_qabstractbutton.cpp:226
#10 0x0000003fbf1838fe in QAbstractButton::setChecked (this=0x15dbd50,
checked=true) at widgets/qabstractbutton.cpp:768
#11 0x0000003fbf18359f in QAbstractButtonPrivate::click
(this=this at entry=0x1758a60) at widgets/qabstractbutton.cpp:530
#12 0x0000003fbf18384c in QAbstractButton::mouseReleaseEvent (this=0x15dbd50,
e=0x7fff0be27f90) at widgets/qabstractbutton.cpp:1123
#13 0x0000003fbf23d80a in QToolButton::mouseReleaseEvent (this=<optimized out>,
e=<optimized out>) at widgets/qtoolbutton.cpp:718
#14 0x0000003fbee19b50 in QWidget::event (this=0x15dbd50, event=0x7fff0be27f90)
at kernel/qwidget.cpp:8371
#15 0x0000003fbedca37c in QApplicationPrivate::notify_helper
(this=this at entry=0xeaf2e0, receiver=receiver at entry=0x15dbd50,
e=e at entry=0x7fff0be27f90) at kernel/qapplication.cpp:4551
#16 0x0000003fbedcf05b in QApplication::notify (this=<optimized out>,
receiver=0x15dbd50, e=0x7fff0be27f90) at kernel/qapplication.cpp:4094
#17 0x0000003d92046736 in KApplication::notify(QObject*, QEvent*) () from
/lib64/libkdeui.so.5
#18 0x0000003cdf1763ee in QCoreApplication::notifyInternal
(this=0x7fff0be28bf0, receiver=0x15dbd50, event=0x7fff0be27f90) at
kernel/qcoreapplication.cpp:915
#19 0x0000003fbedcb1bb in sendEvent (event=<optimized out>, receiver=<optimized
out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#20 QApplicationPrivate::sendMouseEvent (receiver=0x15dbd50,
event=0x7fff0be27f90, alienWidget=0x15dbd50, nativeWidget=0x1057ed0,
buttonDown=0x3fbf89dd68, lastMouseReceiver=..., spontaneous=true) at
kernel/qapplication.cpp:3162
#21 0x0000003fbee45894 in QETWidget::translateMouseEvent
(this=this at entry=0x1057ed0, event=event at entry=0x7fff0be28700) at
kernel/qapplication_x11.cpp:4523
#22 0x0000003fbee44621 in QApplication::x11ProcessEvent (this=0x7fff0be28bf0,
event=0x7fff0be28700) at kernel/qapplication_x11.cpp:3646
#23 0x0000003fbee6a60c in x11EventSourceDispatch (s=s at entry=0xeb0c90,
callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#24 0x0000003cd64476e5 in g_main_dispatch (context=0xeb0700) at gmain.c:2539
#25 g_main_context_dispatch (context=context at entry=0xeb0700) at gmain.c:3075
#26 0x0000003cd6447a18 in g_main_context_iterate
(context=context at entry=0xeb0700, block=block at entry=1,
dispatch=dispatch at entry=1, self=<error reading variable: Unhandled dwarf
expression opcode 0xfa>) at gmain.c:3146
#27 0x0000003cd6447ad4 in g_main_context_iteration (context=0xeb0700,
may_block=1) at gmain.c:3207
#28 0x0000003cdf1a44e6 in QEventDispatcherGlib::processEvents (this=0xe75990,
flags=...) at kernel/qeventdispatcher_glib.cpp:424
#29 0x0000003fbee6a2ee in QGuiEventDispatcherGlib::processEvents
(this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#30 0x0000003cdf17513f in QEventLoop::processEvents
(this=this at entry=0x7fff0be28ad0, flags=...) at kernel/qeventloop.cpp:149
#31 0x0000003cdf1753c8 in QEventLoop::exec (this=0x7fff0be28ad0, flags=...) at
kernel/qeventloop.cpp:204
#32 0x0000003cdf17a1b8 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1187
#33 0x000000000040a7de in ?? ()
#34 0x0000003cd4421735 in __libc_start_main (main=0x40a480, argc=5,
ubp_av=0x7fff0be28d38, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fff0be28d28) at libc-start.c:226
#35 0x000000000040a835 in _start ()

Reported using DrKonqi

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