Bug 300826

Application: kmix (4)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic x86_64
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:the notebook was suspended, kmix crashes after the wake up from suspension

The crash can be reproduced some of the time.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f62d4ff0780 (LWP 1928))]

Thread 3 (Thread 0x7f62b4f35700 (LWP 2013)):
#0  __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:37
#1  __pthread_mutex_unlock (mutex=0x7f62b0000a60) at pthread_mutex_unlock.c:290
#2  0x00007f62ca6f9591 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f62ca6bd713 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f62ca6bdf1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f62ca6be124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f62d1638426 in QEventDispatcherGlib::processEvents (this=0x7f62b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007f62d1607c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007f62d1607ed7 in QEventLoop::exec (this=0x7f62b4f34dd0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f62d1506fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007f62d15e79ff in QInotifyFileSystemWatcherEngine::run (this=0x127d860) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x00007f62d1509fcb in QThreadPrivate::start (arg=0x127d860) at thread/qthread_unix.cpp:298
#12 0x00007f62cb224e9a in start_thread (arg=0x7f62b4f35700) at pthread_create.c:308
#13 0x00007f62d48bd4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f62abffe700 (LWP 2285)):
#0  0x00007f62d1560be0 in qt_gettime () at tools/qelapsedtimer_unix.cpp:146
#1  0x00007f62d1638b8d in QTimerInfoList::updateCurrentTime (this=0x7f62a4002660) at kernel/qeventdispatcher_unix.cpp:343
#2  0x00007f62d1638ec3 in QTimerInfoList::timerWait (this=0x7f62a4002660, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#3  0x00007f62d163797c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f62abffdc6c) at kernel/qeventdispatcher_glib.cpp:136
#4  0x00007f62d1637a25 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#5  0x00007f62ca6bd71e in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f62ca6bdf1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f62ca6be124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f62d1638426 in QEventDispatcherGlib::processEvents (this=0x7f62a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#9  0x00007f62d1607c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#10 0x00007f62d1607ed7 in QEventLoop::exec (this=0x7f62abffddd0, flags=...) at kernel/qeventloop.cpp:204
#11 0x00007f62d1506fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#12 0x00007f62d15e79ff in QInotifyFileSystemWatcherEngine::run (this=0x10d9f00) at io/qfilesystemwatcher_inotify.cpp:248
#13 0x00007f62d1509fcb in QThreadPrivate::start (arg=0x10d9f00) at thread/qthread_unix.cpp:298
#14 0x00007f62cb224e9a in start_thread (arg=0x7f62abffe700) at pthread_create.c:308
#15 0x00007f62d48bd4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#16 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f62d4ff0780 (LWP 1928)):
[KCrash Handler]
#6  0x00007f62d195e820 in QMapData::shared_null () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f62d4bdde26 in MDWSlider::update (this=0x132a500) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007f62d4bd964b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#9  0x00007f62d161d281 in QMetaObject::activate (sender=0x12d03a0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x00007f62d161d281 in QMetaObject::activate (sender=0x12caae0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#11 0x00007f62d4bb2b0c in Mixer_Backend::readSetFromHW (this=0x12caae0) at ../../kmix/backends/mixer_backend.cpp:155
#12 0x00007f62d4bc2df5 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#13 0x00007f62d2f9a944 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#14 0x00007f62cabdc693 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#15 0x00007f62cabdca03 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#16 0x00007f62d2f90bdd in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#17 0x00007f62cabe12a9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#18 0x00007f62d2d7eab3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#19 0x00007f62ca6bdc9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f62ca6be060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f62ca6be124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f62d16383bf in QEventDispatcherGlib::processEvents (this=0xeebad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f62d2322d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f62d1607c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f62d1607ed7 in QEventLoop::exec (this=0x7fff6ee44f80, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f62d160cf67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#27 0x00007f62d4bca3e2 in kdemain (argc=3, argv=0x7fff6ee45508) at ../../kmix/apps/main.cpp:76
#28 0x00007f62d47ec76d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=3, ubp_av=0x7fff6ee45508, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff6ee454f8) at libc-start.c:226
#29 0x0000000000400661 in _start ()

Possible duplicates by query: bug 300793, bug 300767, bug 300766, bug 300695, bug 300684.

Reported using DrKonqi