Application: k3b (1.91.0)
KDE Platform Version: 4.4.5 (KDE 4.4.5)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-28-generic i686
Distribution: Ubuntu 10.04.2 LTS

-- Information about the crash:
I checked the box "Verify the data written".
It crashed at about 50% of the process of verification.
It happened every time (2 times) since i have updated Ubuntu 10.04 LTS (yesterday).


The crash can be reproduced every time.

 -- Backtrace:
Application: K3b (k3b), signal: Segmentation fault
[Current thread is 1 (Thread 0xb77d5710 (LWP 3755))]

Thread 2 (Thread 0xb54ffb70 (LWP 3856)):
#0  0x00e7f422 in __kernel_vsyscall ()
#1  0x005c2342 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x02f14c1e in thread_sleep (ti=0x1) at thread/qthread_unix.cpp:398
#3  0x02f14dc0 in QThread::sleep (secs=2) at thread/qthread_unix.cpp:412
#4  0x00a705d9 in K3b::MediaCache::PollThread::run (this=0x9bf6df8) at /build/buildd/k3b-1.91.0~rc2/libk3b/tools/k3bmediacache.cpp:106
#5  0x02f1532e in QThreadPrivate::start (arg=0x9bf6df8) at thread/qthread_unix.cpp:248
#6  0x005bd96e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0x08790a4e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb77d5710 (LWP 3755)):
[KCrash Handler]
#6  K3b::Device::Track::type (this=0xa51ed30) at /build/buildd/k3b-1.91.0~rc2/libk3bdevice/k3btrack.cpp:100
#7  0x00ac3721 in K3b::VerificationJob::slotDiskInfoReady (this=0x1, dh=0xa51edf8) at /build/buildd/k3b-1.91.0~rc2/libk3b/jobs/k3bverificationjob.cpp:288
#8  0x00ac38c7 in K3b::VerificationJob::qt_metacall (this=0xa51ed30, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbffb3728)
    at /build/buildd/k3b-1.91.0~rc2/obj-i486-linux-gnu/libk3b/k3bverificationjob.moc:97
#9  0x0301cc9a in QMetaObject::metacall (object=0xa51ed30, cl=QMetaObject::ReadProperty, idx=28, argv=0xbffb3728) at kernel/qmetaobject.cpp:237
#10 0x0302b3d5 in QMetaObject::activate (sender=0xa51edf8, m=0xb6d794, local_signal_index=0, argv=0xbffb3728) at kernel/qobject.cpp:3293
#11 0x00a51823 in K3b::Device::DeviceHandler::finished (this=0xa51edf8, _t1=0xa51edf8) at /build/buildd/k3b-1.91.0~rc2/obj-i486-linux-gnu/libk3b/k3bdevicehandler.moc:112
#12 0x00a518f6 in K3b::Device::DeviceHandler::jobFinished (this=0xa51edf8, success=<value optimized out>) at /build/buildd/k3b-1.91.0~rc2/libk3b/tools/k3bdevicehandler.cpp:208
#13 0x00a41a66 in K3b::ThreadJob::slotThreadFinished (this=0xa51edf8) at /build/buildd/k3b-1.91.0~rc2/libk3b/core/k3bthreadjob.cpp:81
#14 0x00a41afb in K3b::ThreadJob::qt_metacall (this=0xa51edf8, _c=QMetaObject::InvokeMetaMethod, _id=23, _a=0xa35e180) at /build/buildd/k3b-1.91.0~rc2/obj-i486-linux-gnu/libk3b/k3bthreadjob.moc:77
#15 0x00a51e7a in K3b::Device::DeviceHandler::qt_metacall (this=0xa51edf8, _c=QMetaObject::InvokeMetaMethod, _id=23, _a=0xa35e180)
    at /build/buildd/k3b-1.91.0~rc2/obj-i486-linux-gnu/libk3b/k3bdevicehandler.moc:85
#16 0x0301cc9a in QMetaObject::metacall (object=0xa51edf8, cl=QMetaObject::ReadProperty, idx=23, argv=0xa35e180) at kernel/qmetaobject.cpp:237
#17 0x03027336 in QMetaCallEvent::placeMetaCall (this=0xa589988, object=0xa51edf8) at kernel/qobject.cpp:561
#18 0x030283fe in QObject::event (this=0xa51edf8, e=0xa589988) at kernel/qobject.cpp:1248
#19 0x020804dc in QApplicationPrivate::notify_helper (this=0x9948698, receiver=0xa51edf8, e=0xa589988) at kernel/qapplication.cpp:4300
#20 0x0208705e in QApplication::notify (this=0xbffb6780, receiver=0xa51edf8, e=0xa589988) at kernel/qapplication.cpp:3704
#21 0x03e1c40a in KApplication::notify (this=0xbffb6780, receiver=0xa51edf8, event=0xa589988) at ../../kdeui/kernel/kapplication.cpp:302
#22 0x03017a3b in QCoreApplication::notifyInternal (this=0xbffb6780, receiver=0xa51edf8, event=0xa589988) at kernel/qcoreapplication.cpp:704
#23 0x0301a473 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x9927710) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9927710) at kernel/qcoreapplication.cpp:1345
#25 0x0301a5dd in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1238
#26 0x03043adf in QCoreApplication::sendPostedEvents (s=0x994d710) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#27 postEventSourceDispatch (s=0x994d710) at kernel/qeventdispatcher_glib.cpp:276
#28 0x06c565e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#29 0x06c5a2d8 in ?? () from /lib/libglib-2.0.so.0
#30 0x06c5a4b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#31 0x030435d5 in QEventDispatcherGlib::processEvents (this=0x99272a8, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#32 0x02140135 in QGuiEventDispatcherGlib::processEvents (this=0x99272a8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#33 0x03016059 in QEventLoop::processEvents (this=0xbffb4000, flags=) at kernel/qeventloop.cpp:149
#34 0x030164aa in QEventLoop::exec (this=0xbffb4000, flags=...) at kernel/qeventloop.cpp:201
#35 0x025bf4f3 in QDialog::exec (this=0xa489930) at dialogs/qdialog.cpp:546
#36 0x0818794a in K3b::JobProgressDialog::startJob (this=0xa489930, job=0xa49a8f0) at /build/buildd/k3b-1.91.0~rc2/src/k3bjobprogressdialog.cpp:632
#37 0x0810fb5e in K3b::ProjectBurnDialog::slotStartClicked (this=0xa19c9f8) at /build/buildd/k3b-1.91.0~rc2/src/projects/k3bprojectburndialog.cpp:234
#38 0x080dcdbd in K3b::DataBurnDialog::slotStartClicked (this=0xa19c9f8) at /build/buildd/k3b-1.91.0~rc2/src/projects/k3bdataburndialog.cpp:205
#39 0x081949c4 in K3b::InteractionDialog::slotStartClickedInternal (this=0xa19c9f8) at /build/buildd/k3b-1.91.0~rc2/src/k3binteractiondialog.cpp:312
#40 0x0819511a in K3b::InteractionDialog::qt_metacall (this=0xa19c9f8, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xbffb4528)
    at /build/buildd/k3b-1.91.0~rc2/obj-i486-linux-gnu/src/k3binteractiondialog.moc:161
#41 0x0810f68f in K3b::ProjectBurnDialog::qt_metacall (this=0xa19c9f8, _c=QMetaObject::InvokeMetaMethod, _id=103, _a=0xbffb4528)
    at /build/buildd/k3b-1.91.0~rc2/obj-i486-linux-gnu/src/k3bprojectburndialog.moc:79
#42 0x080dbbdc in K3b::DataBurnDialog::qt_metacall (this=0xa19c9f8, _c=QMetaObject::InvokeMetaMethod, _id=103, _a=0xbffb4528)
    at /build/buildd/k3b-1.91.0~rc2/obj-i486-linux-gnu/src/k3bdataburndialog.moc:73
#43 0x0301cc9a in QMetaObject::metacall (object=0xa19c9f8, cl=QMetaObject::ReadProperty, idx=103, argv=0xbffb4528) at kernel/qmetaobject.cpp:237
#44 0x0302b3d5 in QMetaObject::activate (sender=0x9bfd8d0, m=0x81f2c10, local_signal_index=2, argv=0xbffb4528) at kernel/qobject.cpp:3293
#45 0x027ab479 in QAbstractButton::clicked (this=0x9bfd8d0, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:206
#46 0x0248aea9 in QAbstractButtonPrivate::emitClicked (this=0xa2ed1a0) at widgets/qabstractbutton.cpp:546
#47 0x0248bcf4 in QAbstractButtonPrivate::click (this=0xa2ed1a0) at widgets/qabstractbutton.cpp:539
#48 0x0248bfae in QAbstractButton::mouseReleaseEvent (this=0x9bfd8d0, e=0xbffb4c60) at widgets/qabstractbutton.cpp:1121
#49 0x020de7f8 in QWidget::event (this=0x9bfd8d0, event=0xbffb4c60) at kernel/qwidget.cpp:7998
#50 0x0248ad4e in QAbstractButton::event (this=0x9bfd8d0, e=0x9ad56e8) at widgets/qabstractbutton.cpp:1080
#51 0x025351f2 in QPushButton::event (this=0x9bfd8d0, e=0xbffb4c60) at widgets/qpushbutton.cpp:679
#52 0x020804dc in QApplicationPrivate::notify_helper (this=0x9948698, receiver=0x9bfd8d0, e=0xbffb4c60) at kernel/qapplication.cpp:4300
#53 0x020879f7 in QApplication::notify (this=0xbffb6780, receiver=0x9bfd8d0, e=0xbffb4c60) at kernel/qapplication.cpp:3865
#54 0x03e1c40a in KApplication::notify (this=0xbffb6780, receiver=0x9bfd8d0, event=0xbffb4c60) at ../../kdeui/kernel/kapplication.cpp:302
#55 0x03017a3b in QCoreApplication::notifyInternal (this=0xbffb6780, receiver=0x9bfd8d0, event=0xbffb4c60) at kernel/qcoreapplication.cpp:704
#56 0x02086952 in QCoreApplication::sendEvent (receiver=0x9bfd8d0, event=0xbffb4c60, alienWidget=0x9bfd8d0, nativeWidget=0xa286808, buttonDown=0x29c4058, lastMouseReceiver=..., spontaneous=true)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#57 QApplicationPrivate::sendMouseEvent (receiver=0x9bfd8d0, event=0xbffb4c60, alienWidget=0x9bfd8d0, nativeWidget=0xa286808, buttonDown=0x29c4058, lastMouseReceiver=..., spontaneous=true)
    at kernel/qapplication.cpp:2965
#58 0x02112088 in QETWidget::translateMouseEvent (this=0xa286808, event=0xbffb517c) at kernel/qapplication_x11.cpp:4368
#59 0x02111511 in QApplication::x11ProcessEvent (this=0xbffb6780, event=0xbffb517c) at kernel/qapplication_x11.cpp:3379
#60 0x0214060a in x11EventSourceDispatch (s=0x994e1a8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#61 0x06c565e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#62 0x06c5a2d8 in ?? () from /lib/libglib-2.0.so.0
#63 0x06c5a4b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#64 0x030435d5 in QEventDispatcherGlib::processEvents (this=0x99272a8, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#65 0x02140135 in QGuiEventDispatcherGlib::processEvents (this=0x99272a8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#66 0x03016059 in QEventLoop::processEvents (this=0xbffb5470, flags=) at kernel/qeventloop.cpp:149
#67 0x030164aa in QEventLoop::exec (this=0xbffb5470, flags=...) at kernel/qeventloop.cpp:201
#68 0x025bf4f3 in QDialog::exec (this=0xa19c9f8) at dialogs/qdialog.cpp:546
#69 0x081945bf in K3b::InteractionDialog::exec (this=0xa19c9f8) at /build/buildd/k3b-1.91.0~rc2/src/k3binteractiondialog.cpp:526
#70 0x080d5ff2 in K3b::DataView::slotBurn (this=0x9ddabf8) at /build/buildd/k3b-1.91.0~rc2/src/projects/k3bdataview.cpp:138
#71 0x0810a5ce in K3b::View::qt_metacall (this=0x9ddabf8, _c=QMetaObject::InvokeMetaMethod, _id=27, _a=0xbffb5758) at /build/buildd/k3b-1.91.0~rc2/obj-i486-linux-gnu/src/k3bview.moc:80
#72 0x0810c34f in K3b::StandardView::qt_metacall (this=0x9ddabf8, _c=QMetaObject::InvokeMetaMethod, _id=27, _a=0xbffb5758)
    at /build/buildd/k3b-1.91.0~rc2/obj-i486-linux-gnu/src/k3bstandardview.moc:87
#73 0x080d528f in K3b::DataView::qt_metacall (this=0x9ddabf8, _c=QMetaObject::InvokeMetaMethod, _id=27, _a=0xbffb5758) at /build/buildd/k3b-1.91.0~rc2/obj-i486-linux-gnu/src/k3bdataview.moc:77
#74 0x0301cc9a in QMetaObject::metacall (object=0x9ddabf8, cl=QMetaObject::ReadProperty, idx=27, argv=0xbffb5758) at kernel/qmetaobject.cpp:237
#75 0x0302b3d5 in QMetaObject::activate (sender=0x9a89d90, m=0x29a8d58, local_signal_index=1, argv=0xbffb5758) at kernel/qobject.cpp:3293
#76 0x02079bd9 in QAction::triggered (this=0x9a89d90, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#77 0x0207bdcc in QAction::activate (this=0x9a89d90, event=QAction::Trigger) at kernel/qaction.cpp:1255
#78 0x0256ebd2 in QAction::trigger (this=0x9ad56e8) at ../../include/QtGui/../../src/gui/kernel/qaction.h:218
#79 QToolButton::nextCheckState (this=0x9ad56e8) at widgets/qtoolbutton.cpp:1147
#80 0x0248bcb3 in QAbstractButtonPrivate::click (this=0x9f6ed58) at widgets/qabstractbutton.cpp:528
#81 0x0248bfae in QAbstractButton::mouseReleaseEvent (this=0x9f6ed40, e=0xbffb5ec0) at widgets/qabstractbutton.cpp:1121
#82 0x0256f09c in QToolButton::mouseReleaseEvent (this=0x9f6ed40, e=0xbffb5ec0) at widgets/qtoolbutton.cpp:721
#83 0x020de7f8 in QWidget::event (this=0x9f6ed40, event=0xbffb5ec0) at kernel/qwidget.cpp:7998
#84 0x0248ad4e in QAbstractButton::event (this=0x9f6ed40, e=0x9ad56e8) at widgets/qabstractbutton.cpp:1080
#85 0x02571bca in QToolButton::event (this=0x9f6ed40, event=0xbffb5ec0) at widgets/qtoolbutton.cpp:1163
#86 0x020804dc in QApplicationPrivate::notify_helper (this=0x9948698, receiver=0x9f6ed40, e=0xbffb5ec0) at kernel/qapplication.cpp:4300
#87 0x020879f7 in QApplication::notify (this=0xbffb6780, receiver=0x9f6ed40, e=0xbffb5ec0) at kernel/qapplication.cpp:3865
#88 0x03e1c40a in KApplication::notify (this=0xbffb6780, receiver=0x9f6ed40, event=0xbffb5ec0) at ../../kdeui/kernel/kapplication.cpp:302
#89 0x03017a3b in QCoreApplication::notifyInternal (this=0xbffb6780, receiver=0x9f6ed40, event=0xbffb5ec0) at kernel/qcoreapplication.cpp:704
#90 0x02086952 in QCoreApplication::sendEvent (receiver=0x9f6ed40, event=0xbffb5ec0, alienWidget=0x9f6ed40, nativeWidget=0x9f684e0, buttonDown=0x29c4058, lastMouseReceiver=..., spontaneous=true)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#91 QApplicationPrivate::sendMouseEvent (receiver=0x9f6ed40, event=0xbffb5ec0, alienWidget=0x9f6ed40, nativeWidget=0x9f684e0, buttonDown=0x29c4058, lastMouseReceiver=..., spontaneous=true)
    at kernel/qapplication.cpp:2965
#92 0x02112088 in QETWidget::translateMouseEvent (this=0x9f684e0, event=0xbffb63dc) at kernel/qapplication_x11.cpp:4368
#93 0x02111511 in QApplication::x11ProcessEvent (this=0xbffb6780, event=0xbffb63dc) at kernel/qapplication_x11.cpp:3379
#94 0x0214060a in x11EventSourceDispatch (s=0x994e1a8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#95 0x06c565e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#96 0x06c5a2d8 in ?? () from /lib/libglib-2.0.so.0
#97 0x06c5a4b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#98 0x030435d5 in QEventDispatcherGlib::processEvents (this=0x99272a8, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#99 0x02140135 in QGuiEventDispatcherGlib::processEvents (this=0x99272a8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#100 0x03016059 in QEventLoop::processEvents (this=0xbffb66d4, flags=) at kernel/qeventloop.cpp:149
#101 0x030164aa in QEventLoop::exec (this=0xbffb66d4, flags=...) at kernel/qeventloop.cpp:201
#102 0x0301a69f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#103 0x02080577 in QApplication::exec () at kernel/qapplication.cpp:3579
#104 0x0817caf4 in main (argc=1, argv=0xbffb6b44) at /build/buildd/k3b-1.91.0~rc2/src/main.cpp:165

Reported using DrKonqi