[systemsettings] [Bug 314180] New: Crash in KDE Phonon settings

[soli at v-paul.de]

https://bugs.kde.org/show_bug.cgi?id=314180

            Bug ID: 314180
           Summary: Crash in KDE Phonon settings
    Classification: Unclassified
           Product: systemsettings
           Version: 1.0
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: soli at v-paul.de

Application: systemsettings (1.0)
KDE Platform Version: 4.9.4
Qt Version: 4.8.3
Operating System: Linux 3.5.0-17-generic i686
Distribution: Ubuntu 12.10

-- Information about the crash:
- What I was doing when the application crashed:
System settings - Multimedia - Phonon
and after click on Phonon, System settings crashed.

Before that, I installed VLC backend tentatively because my front audio jack
produces no sound.
Maybe that's a possible reason.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1eb7740 (LWP 2416))]

Thread 3 (Thread 0xaeaaeb40 (LWP 2417)):
#0  0xb7738424 in __kernel_vsyscall ()
#1  0xb5cfb5f0 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb321574b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb3206d00 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb3206e61 in g_main_context_iteration () from
/lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb605a99f in QEventDispatcherGlib::processEvents (this=0xae100468,
flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb602726c in QEventLoop::processEvents (this=this at entry=0xaeaae228,
flags=...) at kernel/qeventloop.cpp:149
#7  0xb6027561 in QEventLoop::exec (this=0xaeaae228, flags=...) at
kernel/qeventloop.cpp:204
#8  0xb5f1266c in QThread::exec (this=0x8b22e08) at thread/qthread.cpp:501
#9  0xb60057bd in QInotifyFileSystemWatcherEngine::run (this=0x8b22e08) at
io/qfilesystemwatcher_inotify.cpp:248
#10 0xb5f15a58 in QThreadPrivate::start (arg=0x8b22e08) at
thread/qthread_unix.cpp:338
#11 0xb32dbd4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb5d09d3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xa8d99b40 (LWP 2424)):
#0  0xb7738424 in __kernel_vsyscall ()
#1  0xb32df96b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/i386-linux-gnu/libpthread.so.0
#2  0xb5d1764c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xa91c3c63 in vlc_cond_wait (p_condvar=p_condvar at entry=0x9112b9c,
p_mutex=p_mutex at entry=0x9112b84) at posix/thread.c:431
#4  0xa9136cc1 in LoopRequest (p_playlist=0x9112ac0) at playlist/thread.c:544
#5  Thread (data=0x9112ac0) at playlist/thread.c:592
#6  0xb32dbd4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#7  0xb5d09d3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb1eb7740 (LWP 2416)):
[KCrash Handler]
#7  0xa922b2c4 in snd_config_iterator_next (iterator=iterator at entry=0x3) at
conf.c:3885
#8  0xa9237aab in add_software_devices (list=0xbfe5a88c) at namehint.c:506
#9  snd_device_name_hint (card=card at entry=-1, iface=<optimized out>,
iface at entry=0xaeb15af4 "pcm", hints=hints at entry=0xbfe5a95c) at namehint.c:587
#10 0xaeb13f4b in GetDevices (obj=obj at entry=0x8f51bb8,
item=item at entry=0x90d3d08, prefs_dev=<optimized out>,
prefs_dev at entry=0xaeb15ad0 "default") at alsa.c:738
#11 0xaeb150cb in FindDevicesCallback (p_this=0x8f51bb8, psz_name=0x8fd0be0
"alsa-audio-device", newval=..., oldval=..., p_unused=0x0) at alsa.c:720
#12 0xad416c9e in libvlc_audio_output_device_count (p_instance=0x8ad45b8,
psz_audio_output=0x894c668 "alsa") at audio.c:167
#13 0xae22dfcb in Phonon::VLC::DeviceManager::updateDeviceList (this=0x8fb7bb8)
at ../../src/devicemanager.cpp:243
#14 0xae227072 in Phonon::VLC::Backend::Backend (this=0x89be580, parent=0x0) at
../../src/backend.cpp:99
#15 0xae2274bb in qt_plugin_instance () at ../../src/backend.cpp:50
#16 0xb600b4d0 in QPluginLoader::instance (this=0xbfe5ad2c) at
plugin/qpluginloader.cpp:204
#17 0xaeb1f0fc in Phonon::KdePlatformPlugin::createBackend
(this=this at entry=0x8f30d20, newService=...) at
../../../phonon/platform_kde/kdeplatformplugin.cpp:130
#18 0xaeb1fb49 in Phonon::KdePlatformPlugin::createBackend (this=0x8f30d20) at
../../../phonon/platform_kde/kdeplatformplugin.cpp:183
#19 0xb36425a8 in Phonon::FactoryPrivate::createBackend
(this=this at entry=0x8df0e28) at ../../phonon/factory.cpp:130
#20 0xb3643ee3 in Phonon::Factory::backend (createWhenNull=true) at
../../phonon/factory.cpp:460
#21 0xb36487fc in Phonon::GlobalConfig::audioOutputDeviceListFor
(this=0xbfe5aff8, category=Phonon::NoCategory, override=2) at
../../phonon/globalconfig.cpp:439
#22 0xae2932b2 in DevicePreference::loadCategoryDevices (this=0x8ef9730) at
../../../phonon/kcm/devicepreference.cpp:537
#23 0xae2a4e95 in ?? () from /usr/lib/kde4/kcm_phonon.so
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Possible duplicates by query: bug 298251.

Reported using DrKonqi

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