[kde] [Bug 362923] New: Kdenlive 16.04.1 segfaults when stopping webcam record
José JORGE via KDE Bugzilla
bugzilla_noreply at kde.org
Wed May 11 07:37:52 BST 2016
https://bugs.kde.org/show_bug.cgi?id=362923
Bug ID: 362923
Summary: Kdenlive 16.04.1 segfaults when stopping webcam record
Product: kde
Version: unspecified
Platform: unspecified
OS: Linux
Status: UNCONFIRMED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: unassigned-bugs at kde.org
Reporter: jjorge at free.fr
Application: kdenlive (16.04.1)
Qt Version: 5.6.0
Frameworks Version: 5.21.0
Operating System: Linux 4.6.0-desktop-0.rc6.2.mga6 x86_64
Distribution: "Mageia 6"
-- Information about the crash:
- What I was doing when the application crashed:
1. open kdenlive
2. record video through USB camera at 640x480 30fps
3. click again in record button to stop the record
4. it segfaults the 3 times I have tried
The crash can be reproduced every time.
-- Backtrace:
Application: Kdenlive (kdenlive), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
84 T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f1dd010c800 (LWP 28704))]
Thread 8 (Thread 0x7f1d8cac6700 (LWP 28717)):
#0 0x00007ffe66a94c3f in clock_gettime ()
#1 0x00007f1dc99e2b66 in __GI___clock_gettime (clock_id=1,
tp=tp at entry=0x7f1d8cac5b70) at ../sysdeps/unix/clock_gettime.c:115
#2 0x00007f1dca461926 in qt_clock_gettime (ts=0x7f1d8cac5b70, clock=<optimized
out>) at tools/qelapsedtimer_unix.cpp:105
#3 do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at
tools/qelapsedtimer_unix.cpp:156
#4 qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5 0x00007f1dca5cd379 in QTimerInfoList::updateCurrentTime
(this=this at entry=0x7928b90) at kernel/qtimerinfo_unix.cpp:84
#6 0x00007f1dca5cd8c5 in QTimerInfoList::timerWait (this=0x7928b90, tm=...) at
kernel/qtimerinfo_unix.cpp:381
#7 0x00007f1dca5cec3e in timerSourcePrepareHelper (timeout=0x7f1d8cac5c24,
src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:126
#8 timerSourcePrepare (source=<optimized out>,
timeout=timeout at entry=0x7f1d8cac5c24) at kernel/qeventdispatcher_glib.cpp:159
#9 0x00007f1dc68a49dd in g_main_context_prepare
(context=context at entry=0x7926930, priority=priority at entry=0x7f1d8cac5ca8) at
gmain.c:3442
#10 0x00007f1dc68a52e3 in g_main_context_iterate
(context=context at entry=0x7926930, block=block at entry=1,
dispatch=dispatch at entry=1, self=<optimized out>) at gmain.c:3820
#11 0x00007f1dc68a54bc in g_main_context_iteration (context=0x7926930,
may_block=may_block at entry=1) at gmain.c:3901
#12 0x00007f1dca5cf70b in QEventDispatcherGlib::processEvents (this=0x64e6b70,
flags=...) at kernel/qeventdispatcher_glib.cpp:419
#13 0x00007f1dca57b08a in QEventLoop::exec (this=this at entry=0x7f1d8cac5dd0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f1dca3b597c in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:503
#15 0x00007f1dca3ba589 in QThreadPrivate::start (arg=0x64d4820) at
thread/qthread_unix.cpp:340
#16 0x00007f1dc82d565d in start_thread (arg=0x7f1d8cac6700) at
pthread_create.c:334
#17 0x00007f1dc99d4fbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 7 (Thread 0x7f1d8dac8700 (LWP 28715)):
#0 g_mutex_unlock (mutex=0x7f1d80000990) at gthread-posix.c:1347
#1 0x00007f1dc68a49d0 in g_main_context_prepare
(context=context at entry=0x7f1d80000990, priority=priority at entry=0x7f1d8dac7ca8)
at gmain.c:3440
#2 0x00007f1dc68a52e3 in g_main_context_iterate
(context=context at entry=0x7f1d80000990, block=block at entry=1,
dispatch=dispatch at entry=1, self=<optimized out>) at gmain.c:3820
#3 0x00007f1dc68a54bc in g_main_context_iteration (context=0x7f1d80000990,
may_block=may_block at entry=1) at gmain.c:3901
#4 0x00007f1dca5cf70b in QEventDispatcherGlib::processEvents
(this=0x7f1d800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5 0x00007f1dca57b08a in QEventLoop::exec (this=this at entry=0x7f1d8dac7dd0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#6 0x00007f1dca3b597c in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:503
#7 0x00007f1dca3ba589 in QThreadPrivate::start (arg=0x50a4dc0) at
thread/qthread_unix.cpp:340
#8 0x00007f1dc82d565d in start_thread (arg=0x7f1d8dac8700) at
pthread_create.c:334
#9 0x00007f1dc99d4fbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 6 (Thread 0x7f1d8ffff700 (LWP 28711)):
#0 0x00007ffe66a94c3f in clock_gettime ()
#1 0x00007f1dc99e2b66 in __GI___clock_gettime (clock_id=1,
tp=tp at entry=0x7f1d8fffeb50) at ../sysdeps/unix/clock_gettime.c:115
#2 0x00007f1dca461926 in qt_clock_gettime (ts=0x7f1d8fffeb50, clock=<optimized
out>) at tools/qelapsedtimer_unix.cpp:105
#3 do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at
tools/qelapsedtimer_unix.cpp:156
#4 qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5 0x00007f1dca5cd379 in QTimerInfoList::updateCurrentTime
(this=this at entry=0x7f1d84002ed0) at kernel/qtimerinfo_unix.cpp:84
#6 0x00007f1dca5cd8c5 in QTimerInfoList::timerWait (this=0x7f1d84002ed0,
tm=...) at kernel/qtimerinfo_unix.cpp:381
#7 0x00007f1dca5cec3e in timerSourcePrepareHelper (timeout=0x7f1d8fffec04,
src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:126
#8 timerSourcePrepare (source=<optimized out>,
timeout=timeout at entry=0x7f1d8fffec04) at kernel/qeventdispatcher_glib.cpp:159
#9 0x00007f1dc68a49dd in g_main_context_prepare
(context=context at entry=0x7f1d84000990, priority=priority at entry=0x7f1d8fffec88)
at gmain.c:3442
#10 0x00007f1dc68a52e3 in g_main_context_iterate
(context=context at entry=0x7f1d84000990, block=block at entry=1,
dispatch=dispatch at entry=1, self=<optimized out>) at gmain.c:3820
#11 0x00007f1dc68a54bc in g_main_context_iteration (context=0x7f1d84000990,
may_block=may_block at entry=1) at gmain.c:3901
#12 0x00007f1dca5cf70b in QEventDispatcherGlib::processEvents
(this=0x7f1d840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#13 0x00007f1dca57b08a in QEventLoop::exec (this=this at entry=0x7f1d8fffedb0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f1dca3b597c in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:503
#15 0x00007f1dcb1a31b5 in QQmlThreadPrivate::run() () from
/lib64/libQt5Qml.so.5
#16 0x00007f1dca3ba589 in QThreadPrivate::start (arg=0x1d4be20) at
thread/qthread_unix.cpp:340
#17 0x00007f1dc82d565d in start_thread (arg=0x7f1d8ffff700) at
pthread_create.c:334
#18 0x00007f1dc99d4fbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 5 (Thread 0x7f1d95dd2700 (LWP 28709)):
#0 g_mutex_lock (mutex=mutex at entry=0x7f1d90000990) at gthread-posix.c:1335
#1 0x00007f1dc68a4cce in g_main_context_check
(context=context at entry=0x7f1d90000990, max_priority=2147483647,
fds=fds at entry=0x7f1d90002e70, n_fds=n_fds at entry=1) at gmain.c:3621
#2 0x00007f1dc68a5358 in g_main_context_iterate
(context=context at entry=0x7f1d90000990, block=block at entry=1,
dispatch=dispatch at entry=1, self=<optimized out>) at gmain.c:3837
#3 0x00007f1dc68a54bc in g_main_context_iteration (context=0x7f1d90000990,
may_block=may_block at entry=1) at gmain.c:3901
#4 0x00007f1dca5cf70b in QEventDispatcherGlib::processEvents
(this=0x7f1d900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5 0x00007f1dca57b08a in QEventLoop::exec (this=this at entry=0x7f1d95dd1db0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#6 0x00007f1dca3b597c in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:503
#7 0x00007f1dcb1a31b5 in QQmlThreadPrivate::run() () from
/lib64/libQt5Qml.so.5
#8 0x00007f1dca3ba589 in QThreadPrivate::start (arg=0x23602f0) at
thread/qthread_unix.cpp:340
#9 0x00007f1dc82d565d in start_thread (arg=0x7f1d95dd2700) at
pthread_create.c:334
#10 0x00007f1dc99d4fbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 4 (Thread 0x7f1d9d40f700 (LWP 28708)):
#0 0x00007f1dc99c916d in poll () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007f1da61f67a8 in linux_udev_event_thread_main () from
/lib64/libusb-1.0.so.0
#2 0x00007f1dc82d565d in start_thread (arg=0x7f1d9d40f700) at
pthread_create.c:334
#3 0x00007f1dc99d4fbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 3 (Thread 0x7f1dba54c700 (LWP 28706)):
#0 0x00007ffe66a94c3f in clock_gettime ()
#1 0x00007f1dc99e2b66 in __GI___clock_gettime (clock_id=1,
tp=tp at entry=0x7f1dba54bb40) at ../sysdeps/unix/clock_gettime.c:115
#2 0x00007f1dca461926 in qt_clock_gettime (ts=0x7f1dba54bb40, clock=<optimized
out>) at tools/qelapsedtimer_unix.cpp:105
#3 do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at
tools/qelapsedtimer_unix.cpp:156
#4 qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5 0x00007f1dca5cd379 in QTimerInfoList::updateCurrentTime
(this=this at entry=0x7f1dac002ed0) at kernel/qtimerinfo_unix.cpp:84
#6 0x00007f1dca5cd8c5 in QTimerInfoList::timerWait (this=0x7f1dac002ed0,
tm=...) at kernel/qtimerinfo_unix.cpp:381
#7 0x00007f1dca5cec3e in timerSourcePrepareHelper (timeout=0x7f1dba54bbf4,
src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:126
#8 timerSourcePrepare (source=<optimized out>,
timeout=timeout at entry=0x7f1dba54bbf4) at kernel/qeventdispatcher_glib.cpp:159
#9 0x00007f1dc68a49dd in g_main_context_prepare
(context=context at entry=0x7f1dac000990, priority=priority at entry=0x7f1dba54bc78)
at gmain.c:3442
#10 0x00007f1dc68a52e3 in g_main_context_iterate
(context=context at entry=0x7f1dac000990, block=block at entry=1,
dispatch=dispatch at entry=1, self=<optimized out>) at gmain.c:3820
#11 0x00007f1dc68a54bc in g_main_context_iteration (context=0x7f1dac000990,
may_block=may_block at entry=1) at gmain.c:3901
#12 0x00007f1dca5cf70b in QEventDispatcherGlib::processEvents
(this=0x7f1dac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#13 0x00007f1dca57b08a in QEventLoop::exec (this=this at entry=0x7f1dba54bda0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f1dca3b597c in QThread::exec (this=this at entry=0x7f1dd0250d40
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread.cpp:503
#15 0x00007f1dd01e0445 in QDBusConnectionManager::run (this=0x7f1dd0250d40
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
qdbusconnection.cpp:181
#16 0x00007f1dca3ba589 in QThreadPrivate::start (arg=0x7f1dd0250d40 <(anonymous
namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:340
#17 0x00007f1dc82d565d in start_thread (arg=0x7f1dba54c700) at
pthread_create.c:334
#18 0x00007f1dc99d4fbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 2 (Thread 0x7f1dbbcdd700 (LWP 28705)):
#0 0x00007f1dc99c916d in poll () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007f1dc4573ac2 in poll (__timeout=-1, __nfds=1, __fds=0x7f1dbbcdccc0)
at /usr/include/bits/poll2.h:46
#2 _xcb_conn_wait (c=c at entry=0x1200dc0, cond=cond at entry=0x1200e00,
vector=vector at entry=0x0, count=count at entry=0x0) at xcb_conn.c:459
#3 0x00007f1dc4575697 in xcb_wait_for_event (c=0x1200dc0) at xcb_in.c:693
#4 0x00007f1dbe20e809 in QXcbEventReader::run (this=0x120af80) at
qxcbconnection.cpp:1313
#5 0x00007f1dca3ba589 in QThreadPrivate::start (arg=0x120af80) at
thread/qthread_unix.cpp:340
#6 0x00007f1dc82d565d in start_thread (arg=0x7f1dbbcdd700) at
pthread_create.c:334
#7 0x00007f1dc99d4fbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 1 (Thread 0x7f1dd010c800 (LWP 28704)):
[KCrash Handler]
#6 0x00007f1dceea724e in Mlt::Consumer::is_stopped (this=0x171a130) at
MltConsumer.cpp:124
#7 0x00000000007b7af3 in Render::setProducer (this=0x218c530,
producer=producer at entry=0x0, position=position at entry=-1, isActive=true) at
/usr/src/debug/kdenlive-16.04.1/src/renderer.cpp:353
#8 0x00000000006c1bbb in Monitor::slotOpenClip (this=this at entry=0x21c2fe0,
controller=controller at entry=0x0, in=in at entry=-1, out=out at entry=-1) at
/usr/src/debug/kdenlive-16.04.1/src/monitor/monitor.cpp:1297
#9 0x00000000006c1cce in Monitor::stopCapture (this=0x21c2fe0) at
/usr/src/debug/kdenlive-16.04.1/src/monitor/monitor.cpp:1895
#10 0x00000000006ca619 in RecManager::slotRecord (this=0x2905180,
record=<optimized out>) at
/usr/src/debug/kdenlive-16.04.1/src/monitor/recmanager.cpp:205
#11 0x00007f1dca5a8486 in QtPrivate::QSlotObjectBase::call (a=0x7ffe66a8a760,
r=0x2905180, this=<optimized out>) at
../../src/corelib/kernel/qobject_impl.h:124
#12 QMetaObject::activate (sender=sender at entry=0x2506cf0,
signalOffset=<optimized out>, local_signal_index=local_signal_index at entry=4,
argv=argv at entry=0x7ffe66a8a760) at kernel/qobject.cpp:3715
#13 0x00007f1dca5a8a27 in QMetaObject::activate (sender=sender at entry=0x2506cf0,
m=m at entry=0x7f1dcbde7a40 <QAction::staticMetaObject>,
local_signal_index=local_signal_index at entry=4, argv=argv at entry=0x7ffe66a8a760)
at kernel/qobject.cpp:3595
#14 0x00007f1dcb90c922 in QAction::toggled (this=this at entry=0x2506cf0,
_t1=_t1 at entry=false) at .moc/moc_qaction.cpp:382
#15 0x00007f1dcb90f03e in QAction::setChecked (this=this at entry=0x2506cf0,
b=<optimized out>) at kernel/qaction.cpp:981
#16 0x00007f1dcb90f17c in QAction::activate (this=0x2506cf0, event=<optimized
out>) at kernel/qaction.cpp:1160
#17 0x00007f1dcba0a580 in QAbstractButtonPrivate::click
(this=this at entry=0x1ec6df0) at widgets/qabstractbutton.cpp:515
#18 0x00007f1dcba0a68c in QAbstractButton::mouseReleaseEvent (this=0x1d32bb0,
e=0x7ffe66a8ac40) at widgets/qabstractbutton.cpp:1131
#19 0x00007f1dcbac7a8a in QToolButton::mouseReleaseEvent (this=<optimized out>,
e=<optimized out>) at widgets/qtoolbutton.cpp:609
#20 0x00007f1dcb9568d8 in QWidget::event (this=0x1d32bb0,
event=event at entry=0x7ffe66a8ac40) at kernel/qwidget.cpp:9109
#21 0x00007f1dcba0b1b3 in QAbstractButton::event (this=this at entry=0x1d32bb0,
e=e at entry=0x7ffe66a8ac40) at widgets/qabstractbutton.cpp:1088
#22 0x00007f1dcbac7b59 in QToolButton::event (this=0x1d32bb0,
event=0x7ffe66a8ac40) at widgets/qtoolbutton.cpp:970
#23 0x00007f1dcb91540c in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x1d32bb0, e=0x7ffe66a8ac40) at kernel/qapplication.cpp:3714
#24 0x00007f1dcb91ae41 in QApplication::notify (this=<optimized out>,
receiver=0x1d32bb0, e=0x7ffe66a8ac40) at kernel/qapplication.cpp:3272
#25 0x00007f1dca57d1d8 in QCoreApplication::notifyInternal2
(receiver=0x1d32bb0, event=0x7ffe66a8ac40) at kernel/qcoreapplication.cpp:1015
#26 0x00007f1dcb919895 in QApplicationPrivate::sendMouseEvent
(receiver=0x1d32bb0, event=0x7ffe66a8ac40, alienWidget=0x1d32bb0,
nativeWidget=0x21c2fe0, buttonDown=<optimized out>, lastMouseReceiver=...,
spontaneous=true) at ../../src/corelib/kernel/qcoreapplication.h:227
#27 0x00007f1dcb96fd11 in QWidgetWindow::handleMouseEvent
(this=this at entry=0x16f8600, event=event at entry=0x7ffe66a8b040) at
kernel/qwidgetwindow.cpp:554
#28 0x00007f1dcb97208b in QWidgetWindow::event (this=0x16f8600,
event=0x7ffe66a8b040) at kernel/qwidgetwindow.cpp:210
#29 0x00007f1dcb91540c in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x16f8600, e=0x7ffe66a8b040) at kernel/qapplication.cpp:3714
#30 0x00007f1dcb91a2b6 in QApplication::notify (this=0x7ffe66a8b4b0,
receiver=0x16f8600, e=0x7ffe66a8b040) at kernel/qapplication.cpp:3495
#31 0x00007f1dca57d1d8 in QCoreApplication::notifyInternal2
(receiver=receiver at entry=0x16f8600, event=event at entry=0x7ffe66a8b040) at
kernel/qcoreapplication.cpp:1015
#32 0x00007f1dca8c74d0 in QCoreApplication::sendSpontaneousEvent
(event=0x7ffe66a8b040, receiver=0x16f8600) at
../../src/corelib/kernel/qcoreapplication.h:230
#33 QGuiApplicationPrivate::processMouseEvent (e=0x21a0990) at
kernel/qguiapplication.cpp:1868
#34 0x00007f1dca8c8f25 in QGuiApplicationPrivate::processWindowSystemEvent
(e=<optimized out>) at kernel/qguiapplication.cpp:1652
#35 0x00007f1dca8a789b in QWindowSystemInterface::sendWindowSystemEvents
(flags=...) at kernel/qwindowsysteminterface.cpp:645
#36 0x00007f1dbe23f800 in userEventSourceDispatch (source=<optimized out>) at
eventdispatchers/qeventdispatcher_glib.cpp:70
#37 0x00007f1dc68a51e7 in g_main_dispatch (context=0x7f1db40016f0) at
gmain.c:3154
#38 g_main_context_dispatch (context=context at entry=0x7f1db40016f0) at
gmain.c:3769
#39 0x00007f1dc68a5418 in g_main_context_iterate
(context=context at entry=0x7f1db40016f0, block=block at entry=1,
dispatch=dispatch at entry=1, self=<optimized out>) at gmain.c:3840
#40 0x00007f1dc68a54bc in g_main_context_iteration (context=0x7f1db40016f0,
may_block=may_block at entry=1) at gmain.c:3901
#41 0x00007f1dca5cf6e6 in QEventDispatcherGlib::processEvents (this=0x1229fd0,
flags=...) at kernel/qeventdispatcher_glib.cpp:417
#42 0x00007f1dca57b08a in QEventLoop::exec (this=this at entry=0x7ffe66a8b3b0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#43 0x00007f1dca5833f1 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1285
#44 0x00007f1dca8bf29c in QGuiApplication::exec () at
kernel/qguiapplication.cpp:1598
#45 0x00007f1dcb9126f5 in QApplication::exec () at kernel/qapplication.cpp:2973
#46 0x000000000046863a in main (argc=<optimized out>, argv=<optimized out>) at
/usr/src/debug/kdenlive-16.04.1/src/main.cpp:130
Reported using DrKonqi
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