Bug 330384

Application: k3b (2.0.2)
KDE Platform Version: 4.11.3
Qt Version: 4.8.4
Operating System: Linux 3.11.0-14-generic i686
Distribution: Ubuntu 13.10

-- Information about the crash:
- What I was doing when the application crashed:
I selected Rip DVD from the tools menu and K3b crashed instantly.

-- Backtrace:
Application: K3b (k3b), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1887740 (LWP 2414))]

Thread 5 (Thread 0xaeff1b40 (LWP 2415)):
#0  0xb283e86e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb283ebe8 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb27fb54f in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb27fbafa in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb27fbca8 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb43ef8df in QEventDispatcherGlib::processEvents (this=0xae600468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb43be9f3 in QEventLoop::processEvents (this=this@entry=0xaeff1228, flags=...) at kernel/qeventloop.cpp:149
#7  0xb43bed19 in QEventLoop::exec (this=this@entry=0xaeff1228, flags=...) at kernel/qeventloop.cpp:204
#8  0xb42ade3d in QThread::exec (this=this@entry=0x8d492c8) at thread/qthread.cpp:542
#9  0xb439ee14 in QInotifyFileSystemWatcherEngine::run (this=0x8d492c8) at io/qfilesystemwatcher_inotify.cpp:265
#10 0xb42b072f in QThreadPrivate::start (arg=0x8d492c8) at thread/qthread_unix.cpp:338
#11 0xb255bd78 in start_thread (arg=0xaeff1b40) at pthread_create.c:311
#12 0xb355201e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 4 (Thread 0xabbffb40 (LWP 2444)):
#0  0xb77bf424 in __kernel_vsyscall ()
#1  0xb35404b6 in __libc_open64 (file=0x95265c8 "/dev/sr1", oflag=2048) at ../sysdeps/unix/sysv/linux/open64.c:45
#2  0xb3547acc in __open64_2 (file=file@entry=0x95265c8 "/dev/sr1", oflag=oflag@entry=2048) at ../sysdeps/unix/sysv/linux/open64_2.c:30
#3  0xb776d470 in open (__oflag=<optimized out>, __path=<optimized out>) at /usr/include/i386-linux-gnu/bits/fcntl2.h:57
#4  K3b::Device::openDevice (name=0x95265c8 "/dev/sr1", write=write@entry=false) at /build/buildd/k3b-2.0.2/libk3bdevice/k3bdevice.cpp:185
#5  0xb776f9d4 in K3b::Device::Device::open (this=0x8d3f448, write=write@entry=false) at /build/buildd/k3b-2.0.2/libk3bdevice/k3bdevice.cpp:1801
#6  0xb7783682 in K3b::Device::ScsiCommand::transport (this=this@entry=0xabbff234, dir=dir@entry=K3b::Device::TR_DIR_NONE, data=data@entry=0x0, len=len@entry=0) at /build/buildd/k3b-2.0.2/libk3bdevice/k3bscsicommand_linux.cpp:102
#7  0xb777e0d9 in K3b::Device::Device::testUnitReady (this=0x8d3f448) at /build/buildd/k3b-2.0.2/libk3bdevice/k3bdevice_mmc.cpp:35
#8  0xb76329b8 in K3b::MediaCache::PollThread::run (this=0x8ed03d8) at /build/buildd/k3b-2.0.2/libk3b/tools/k3bmediacache.cpp:63
#9  0xb42b072f in QThreadPrivate::start (arg=0x8ed03d8) at thread/qthread_unix.cpp:338
#10 0xb255bd78 in start_thread (arg=0xabbffb40) at pthread_create.c:311
#11 0xb355201e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 3 (Thread 0xab3feb40 (LWP 2445)):
#0  0xb77bf424 in __kernel_vsyscall ()
#1  0xb3548d09 in ioctl () at ../sysdeps/unix/syscall-template.S:81
#2  0xb77837d0 in K3b::Device::ScsiCommand::transport (this=this@entry=0xab3fe234, dir=dir@entry=K3b::Device::TR_DIR_NONE, data=data@entry=0x0, len=len@entry=0) at /build/buildd/k3b-2.0.2/libk3bdevice/k3bscsicommand_linux.cpp:132
#3  0xb777e0d9 in K3b::Device::Device::testUnitReady (this=0x8f64cc8) at /build/buildd/k3b-2.0.2/libk3bdevice/k3bdevice_mmc.cpp:35
#4  0xb76329b8 in K3b::MediaCache::PollThread::run (this=0x8f35e28) at /build/buildd/k3b-2.0.2/libk3b/tools/k3bmediacache.cpp:63
#5  0xb42b072f in QThreadPrivate::start (arg=0x8f35e28) at thread/qthread_unix.cpp:338
#6  0xb255bd78 in start_thread (arg=0xab3feb40) at pthread_create.c:311
#7  0xb355201e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 2 (Thread 0xa9c3ab40 (LWP 2496)):
#0  0xb27fb592 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb27fbafa in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb27fbca8 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb43ef8df in QEventDispatcherGlib::processEvents (this=0xac6020e8, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0xb43be9f3 in QEventLoop::processEvents (this=this@entry=0xa9c3a228, flags=...) at kernel/qeventloop.cpp:149
#5  0xb43bed19 in QEventLoop::exec (this=this@entry=0xa9c3a228, flags=...) at kernel/qeventloop.cpp:204
#6  0xb42ade3d in QThread::exec (this=this@entry=0x9227fb8) at thread/qthread.cpp:542
#7  0xb439ee14 in QInotifyFileSystemWatcherEngine::run (this=0x9227fb8) at io/qfilesystemwatcher_inotify.cpp:265
#8  0xb42b072f in QThreadPrivate::start (arg=0x9227fb8) at thread/qthread_unix.cpp:338
#9  0xb255bd78 in start_thread (arg=0xa9c3ab40) at pthread_create.c:311
#10 0xb355201e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 1 (Thread 0xb1887740 (LWP 2414)):
[KCrash Handler]
#7  QString (other=<error reading variable: Cannot access memory at address 0x0>, this=0xbf85a3c8, this@entry=0xbf85a368) at /usr/include/qt4/QtCore/qstring.h:725
#8  KTempDir::name (this=0x0) at ../../kdecore/io/ktempdir.cpp:170
#9  0x081964ae in K3b::VideoDVDRippingPreview::slotTranscodeFinished (this=0x9186e98) at /build/buildd/k3b-2.0.2/src/rip/videodvd/k3bvideodvdrippingpreview.cpp:125
#10 0xb43d4fc7 in QMetaObject::activate (sender=sender@entry=0x951c870, m=m@entry=0xb775fb1c <K3bQProcess::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0xbf85a4c4) at kernel/qobject.cpp:3539
#11 0xb7637bad in K3bQProcess::finished (this=this@entry=0x951c870, _t1=0, _t2=QProcess::CrashExit) at /build/buildd/k3b-2.0.2/obj-i686-linux-gnu/libk3b/moc_k3bqprocess.cpp:162
#12 0xb763b673 in K3bQProcessPrivate::_q_notifyProcessDied (this=0x951e7a8) at /build/buildd/k3b-2.0.2/libk3b/tools/qprocess/k3bqprocess.cpp:762
#13 0xb763b6d0 in K3bQProcessPrivate::_q_processDied (this=this@entry=0x951e7a8) at /build/buildd/k3b-2.0.2/libk3b/tools/qprocess/k3bqprocess.cpp:703
#14 0xb763eef1 in K3bQProcessPrivate::waitForFinished (this=this@entry=0x951e7a8, msecs=msecs@entry=30000) at /build/buildd/k3b-2.0.2/libk3b/tools/qprocess/k3bqprocess_unix.cpp:1199
#15 0xb7637d63 in K3bQProcess::waitForFinished (this=this@entry=0x951c870, msecs=msecs@entry=30000) at /build/buildd/k3b-2.0.2/libk3b/tools/qprocess/k3bqprocess.cpp:1428
#16 0xb763811e in K3bQProcess::~K3bQProcess (this=0x951c870, __in_chrg=<optimized out>) at /build/buildd/k3b-2.0.2/libk3b/tools/qprocess/k3bqprocess.cpp:895
#17 0xb763c40a in K3bKProcess::~K3bKProcess (this=0x951c870, __in_chrg=<optimized out>) at /build/buildd/k3b-2.0.2/libk3b/tools/qprocess/k3bkprocess.cpp:106
#18 0xb7635e2c in K3b::Process::~Process (this=0x951c870, __in_chrg=<optimized out>) at /build/buildd/k3b-2.0.2/libk3b/tools/k3bprocess.cpp:116
#19 0xb7635e82 in K3b::Process::~Process (this=0x951c870, __in_chrg=<optimized out>) at /build/buildd/k3b-2.0.2/libk3b/tools/k3bprocess.cpp:119
#20 0xb43d3423 in qDeleteInEventHandler (o=o@entry=0x951c870) at kernel/qobject.cpp:4269
#21 0xb43d95b0 in QObject::event (this=0x951c870, e=0x94cacf0) at kernel/qobject.cpp:1175
#22 0xb3854744 in QApplicationPrivate::notify_helper (this=0x8c69718, receiver=0x951c870, e=0x94cacf0) at kernel/qapplication.cpp:4567
#23 0xb385b223 in QApplication::notify (this=0xbf85ae08, receiver=receiver@entry=0x951c870, e=e@entry=0x94cacf0) at kernel/qapplication.cpp:4353
#24 0xb49b6ff4 in KApplication::notify (this=0xbf85ae08, receiver=0x951c870, event=0x94cacf0) at ../../kdeui/kernel/kapplication.cpp:311
#25 0xb43bfeda in QCoreApplication::notifyInternal (this=0xbf85ae08, receiver=receiver@entry=0x951c870, event=event@entry=0x94cacf0) at kernel/qcoreapplication.cpp:946
#26 0xb43c36ad in sendEvent (event=0x94cacf0, receiver=0x951c870) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#27 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x8bee150) at kernel/qcoreapplication.cpp:1570
#28 0xb43c3bbc in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#29 0xb43eff6e in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#30 postEventSourceDispatch (s=0x8c263a8) at kernel/qeventdispatcher_glib.cpp:279
#31 0xb27fb83e in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#32 0xb27fbbe8 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#33 0xb27fbca8 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#34 0xb43ef8bf in QEventDispatcherGlib::processEvents (this=this@entry=0x8beeee0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#35 0xb390932e in QGuiEventDispatcherGlib::processEvents (this=0x8beeee0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0xb43be9f3 in QEventLoop::processEvents (this=this@entry=0xbf85acf8, flags=...) at kernel/qeventloop.cpp:149
#37 0xb43bed19 in QEventLoop::exec (this=this@entry=0xbf85acf8, flags=...) at kernel/qeventloop.cpp:204
#38 0xb43c489e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#39 0xb3852974 in QApplication::exec () at kernel/qapplication.cpp:3828
#40 0x0807d959 in main (argc=1, argv=0xbf85aee4) at /build/buildd/k3b-2.0.2/src/main.cpp:165

The reporter indicates this bug may be a duplicate of or related to bug 268680.

Possible duplicates by query: bug 329056, bug 317317.

Reported using DrKonqi