Bug 312024 - Random crashes during editing of text
Summary: Random crashes during editing of text
Status: RESOLVED DUPLICATE of bug 297661
Alias: None
Product: kdevelop
Classification: Applications
Component: All editors (show other bugs)
Version: 4.3.1
Platform: Ubuntu Linux
: NOR crash
Target Milestone: 4.3.0
Assignee: kdevelop-bugs-null
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-12-21 06:34 UTC by reza.housseini
Modified: 2012-12-21 12:35 UTC (History)
0 users

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Description reza.housseini 2012-12-21 06:34:13 UTC 
The crashes appear unexpectedly. Sometimes for a long time not and then three or more times in a row. It happens when I'm editing text, but I don't use any special feature, just normal writing.
Here's the backtrace:

Application: KDevelop (kdevelop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f6286c4e780 (LWP 17279))]

Thread 16 (Thread 0x7f626e5bc700 (LWP 17295)):
#0  __libc_disable_asynccancel () at ../nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S:96
#1  0x00007f6283dc8317 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:89
#2  0x00007f627ee6e036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f627ee6e49a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f626e5c198b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#5  0x00007f627ee8f9e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f6283135e9a in start_thread (arg=0x7f626e5bc700) at pthread_create.c:308
#7  0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7f626ddbb700 (LWP 17296)):
#0  0x00007f6283dc8303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f627ee6e036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f627ee6e49a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f62729d2406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f627ee8f9e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6283135e9a in start_thread (arg=0x7f626ddbb700) at pthread_create.c:308
#6  0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7f62590b4700 (LWP 17299)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:215
#1  0x00007f62850e943f in wait (time=1000, this=0x397c1c0) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3919750, time=1000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f62811fe63b in KDevelop::DUChainPrivate::CleanupThread::run (this=0x3919730) at ../../language/duchain/duchain.cpp:282
#4  0x00007f62850e8fcb in QThreadPrivate::start (arg=0x3919730) at thread/qthread_unix.cpp:298
#5  0x00007f6283135e9a in start_thread (arg=0x7f62590b4700) at pthread_create.c:308
#6  0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7f62470c4700 (LWP 17300)):
#0  0x00007f6283dc8303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f627ee6e036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f627ee6e164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6285217426 in QEventDispatcherGlib::processEvents (this=0x7f62400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f62851e6c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f62851e6ed7 in QEventLoop::exec (this=0x7f62470c3e00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f62850e5fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f62850e8fcb in QThreadPrivate::start (arg=0x44a3b60) at thread/qthread_unix.cpp:298
#8  0x00007f6283135e9a in start_thread (arg=0x7f62470c4700) at pthread_create.c:308
#9  0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7f62468c3700 (LWP 17301)):
#0  0x00007f6283dc8303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f627ee6e036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f627ee6e164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6285217426 in QEventDispatcherGlib::processEvents (this=0x7f62380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f62851e6c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f62851e6ed7 in QEventLoop::exec (this=0x7f62468c2e00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f62850e5fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f62850e8fcb in QThreadPrivate::start (arg=0x44a4f10) at thread/qthread_unix.cpp:298
#8  0x00007f6283135e9a in start_thread (arg=0x7f62468c3700) at pthread_create.c:308
#9  0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f62452cb700 (LWP 17307)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6259add222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f6259add259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f6283135e9a in start_thread (arg=0x7f62452cb700) at pthread_create.c:308
#4  0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f6237fff700 (LWP 17308)):
#0  0x00007f6285216ba0 in postEventSourcePrepare (s=0x7f62300012d0, timeout=0x7f6237ffec6c) at kernel/qeventdispatcher_glib.cpp:263
#1  0x00007f627ee6d846 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f627ee6df5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f627ee6e164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6285217426 in QEventDispatcherGlib::processEvents (this=0x7f62300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f62851e6c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f62851e6ed7 in QEventLoop::exec (this=0x7f6237ffedd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f62850e5fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f62851c69ff in QInotifyFileSystemWatcherEngine::run (this=0x5ec1db0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f62850e8fcb in QThreadPrivate::start (arg=0x5ec1db0) at thread/qthread_unix.cpp:298
#10 0x00007f6283135e9a in start_thread (arg=0x7f6237fff700) at pthread_create.c:308
#11 0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f62367ba700 (LWP 17332)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f627bf95dec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f627bf95f19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f6283135e9a in start_thread (arg=0x7f62367ba700) at pthread_create.c:308
#4  0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f6236fbb700 (LWP 17333)):
#0  0x00007f6283137f69 in __pthread_mutex_lock (mutex=0x7f622c019630) at pthread_mutex_lock.c:92
#1  0x00007f627eea95a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f627ee6db4e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f627ee6dfd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f627ee6e164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6285217426 in QEventDispatcherGlib::processEvents (this=0x7f622c1d71c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f62851e6c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f62851e6ed7 in QEventLoop::exec (this=0x7f6236fbae00, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f62850e5fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f62850e8fcb in QThreadPrivate::start (arg=0x27ffdf0) at thread/qthread_unix.cpp:298
#10 0x00007f6283135e9a in start_thread (arg=0x7f6236fbb700) at pthread_create.c:308
#11 0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f61e1920700 (LWP 17347)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f62850e94db in wait (time=18446744073709551615, this=0x65d25c0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x580e620, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f627c98c0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x65d2470, th=0x2a5f550) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f627c98e9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x658b1e0, th=0x2a5f550) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f627c98e9f4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x658b1e0, th=0x2a5f550) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f627c98d84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f61e191fe20, parent=0x65d2470, th=0x2a5f550) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f627c98d8db in ThreadWeaver::Thread::run (this=0x2a5f550) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f62850e8fcb in QThreadPrivate::start (arg=0x2a5f550) at thread/qthread_unix.cpp:298
#9  0x00007f6283135e9a in start_thread (arg=0x7f61e1920700) at pthread_create.c:308
#10 0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f61e0863700 (LWP 17436)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f62850e94db in wait (time=18446744073709551615, this=0x65d25c0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x580e620, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f627c98c0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x65d2470, th=0x58bad40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f627c98e9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x658b1e0, th=0x58bad40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f627c98e9f4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x658b1e0, th=0x58bad40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f627c98e9f4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x658b1e0, th=0x58bad40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f627c98e9f4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x658b1e0, th=0x58bad40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007f627c98d84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f61e0862e20, parent=0x65d2470, th=0x58bad40) at ../../../threadweaver/Weaver/Thread.cpp:87
#9  0x00007f627c98d8db in ThreadWeaver::Thread::run (this=0x58bad40) at ../../../threadweaver/Weaver/Thread.cpp:142
#10 0x00007f62850e8fcb in QThreadPrivate::start (arg=0x58bad40) at thread/qthread_unix.cpp:298
#11 0x00007f6283135e9a in start_thread (arg=0x7f61e0863700) at pthread_create.c:308
#12 0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f61d3fff700 (LWP 17440)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f62850e94db in wait (time=18446744073709551615, this=0x65d25c0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x580e620, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f627c98c0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x65d2470, th=0x605d480) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f627c98e9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x658b1e0, th=0x605d480) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f627c98d84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f61d3ffee20, parent=0x65d2470, th=0x605d480) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f627c98d8db in ThreadWeaver::Thread::run (this=0x605d480) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f62850e8fcb in QThreadPrivate::start (arg=0x605d480) at thread/qthread_unix.cpp:298
#8  0x00007f6283135e9a in start_thread (arg=0x7f61d3fff700) at pthread_create.c:308
#9  0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f61d3743700 (LWP 17516)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f62850e94db in wait (time=18446744073709551615, this=0x65d25c0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x580e620, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f627c98c0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x65d2470, th=0x66cd620) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f627c98e9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x658b1e0, th=0x66cd620) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f627c98e9f4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x658b1e0, th=0x66cd620) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f627c98d84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f61d3742e20, parent=0x65d2470, th=0x66cd620) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f627c98d8db in ThreadWeaver::Thread::run (this=0x66cd620) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f62850e8fcb in QThreadPrivate::start (arg=0x66cd620) at thread/qthread_unix.cpp:298
#9  0x00007f6283135e9a in start_thread (arg=0x7f61d3743700) at pthread_create.c:308
#10 0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f61d2e87700 (LWP 17602)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f62850e94db in wait (time=18446744073709551615, this=0x2a88750) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2a32c10, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f627c98c0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2a89630, th=0x65c6380) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f627c98e9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x2a31ad0, th=0x65c6380) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f627c98e9f4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2a31ad0, th=0x65c6380) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f627c98e9f4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2a31ad0, th=0x65c6380) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f627c98d84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f61d2e86e20, parent=0x2a89630, th=0x65c6380) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007f627c98d8db in ThreadWeaver::Thread::run (this=0x65c6380) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007f62850e8fcb in QThreadPrivate::start (arg=0x65c6380) at thread/qthread_unix.cpp:298
#10 0x00007f6283135e9a in start_thread (arg=0x7f61d2e87700) at pthread_create.c:308
#11 0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f61d2686700 (LWP 17603)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f62850e94db in wait (time=18446744073709551615, this=0x2a88750) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2a32c10, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f627c98c0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2a89630, th=0x7f61c40019f0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f627c98e9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x2a31ad0, th=0x7f61c40019f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f627c98d84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f61d2685e20, parent=0x2a89630, th=0x7f61c40019f0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f627c98d8db in ThreadWeaver::Thread::run (this=0x7f61c40019f0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f62850e8fcb in QThreadPrivate::start (arg=0x7f61c40019f0) at thread/qthread_unix.cpp:298
#8  0x00007f6283135e9a in start_thread (arg=0x7f61d2686700) at pthread_create.c:308
#9  0x00007f6283dd3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f6286c4e780 (LWP 17279)):
[KCrash Handler]
#6  0x00007f616c114030 in ?? ()
#7  0x00007f61d123409a in ?? ()
#8  0x0000000000000000 in ?? ()


Reproducible: Sometimes
Comment 1 Milian Wolff 2012-12-21 12:06:33 UTC 
What Qt version do you use? I guess not Qt 4.8.4 which contains the required fixes to QtScript / JavaScriptCore - see bug 297661.

*** This bug has been marked as a duplicate of bug 297661 ***
Comment 2 reza.housseini 2012-12-21 12:26:07 UTC 
Thanks!
this is my kde4-config --version output:
Qt: 4.8.1
KDE Development Platform: 4.8.5 (4.8.5)
kde4-config: 1.0

Where do I get newer versions of qt?
Comment 3 Milian Wolff 2012-12-21 12:35:56 UTC 
Ask your Linux distributor.