Bug 286541

Application: rekonq (0.8.0)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
Closing another window. Multiple windows were being used. Crash occurs when windows are closed and when pop-ups from websites initiate. May be 2 separate issues.

The crash can be reproduced some of the time.

-- Backtrace:
Application: rekonq (rekonq), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fc4ca9f1780 (LWP 1988))]

Thread 8 (Thread 0x7fc4b6d61700 (LWP 1989)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc4c92c3c2c in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7fc4c9c7a220) at wtf/FastMalloc.cpp:2495
#2  0x00007fc4c92c3d59 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at wtf/FastMalloc.cpp:1618
#3  0x00007fc4c49f8efc in start_thread (arg=0x7fc4b6d61700) at pthread_create.c:304
#4  0x00007fc4ca22289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fc4b6460700 (LWP 1990)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007fc4b645fb70 in ?? ()
#2  0x00007fff78fff7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 6 (Thread 0x7fc4b55e8700 (LWP 1991)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc4c9e24fe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fc4c9e25019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fc4c49f8efc in start_thread (arg=0x7fc4b55e8700) at pthread_create.c:304
#4  0x00007fc4ca22289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fc4affff700 (LWP 1992)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc4c4f9b1ab in wait (time=18446744073709551615, this=0x98aa20) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x99c650, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fc4c6fab864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x988b30, th=0xcc2990) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fc4c6fade0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x99efb0, th=0xcc2990) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fc4c6fade24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x99efb0, th=0xcc2990) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fc4c6facccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fc4afffee20, parent=0x988b30, th=0xcc2990) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007fc4c6facd5b in ThreadWeaver::Thread::run (this=0xcc2990) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007fc4c4f9ad05 in QThreadPrivate::start (arg=0xcc2990) at thread/qthread_unix.cpp:331
#9  0x00007fc4c49f8efc in start_thread (arg=0x7fc4affff700) at pthread_create.c:304
#10 0x00007fc4ca22289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fc46d1fc700 (LWP 1994)):
#0  0x00007fc4c2e2beee in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc4c2e2c429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc4c50acf3e in QEventDispatcherGlib::processEvents (this=0xf69a80, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#3  0x00007fc4c5080cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#4  0x00007fc4c5080ef7 in QEventLoop::exec (this=0x7fc46d1fbdd0, flags=...) at kernel/qeventloop.cpp:201
#5  0x00007fc4c4f9827f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#6  0x00007fc4c5063cbf in QInotifyFileSystemWatcherEngine::run (this=0xf70b30) at io/qfilesystemwatcher_inotify.cpp:248
#7  0x00007fc4c4f9ad05 in QThreadPrivate::start (arg=0xf70b30) at thread/qthread_unix.cpp:331
#8  0x00007fc4c49f8efc in start_thread (arg=0x7fc46d1fc700) at pthread_create.c:304
#9  0x00007fc4ca22289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fc468f15700 (LWP 2004)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc4c4f9b1ab in wait (time=18446744073709551615, this=0x98aa20) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x99c650, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fc4c6fab864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x988b30, th=0x14a3540) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fc4c6fade0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x99efb0, th=0x14a3540) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fc4c6facccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fc468f14e20, parent=0x988b30, th=0x14a3540) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fc4c6facd5b in ThreadWeaver::Thread::run (this=0x14a3540) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fc4c4f9ad05 in QThreadPrivate::start (arg=0x14a3540) at thread/qthread_unix.cpp:331
#8  0x00007fc4c49f8efc in start_thread (arg=0x7fc468f15700) at pthread_create.c:304
#9  0x00007fc4ca22289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fc46b891700 (LWP 2103)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc4c4f9b1ab in wait (time=18446744073709551615, this=0x98aa20) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x99c650, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fc4c6fab864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x988b30, th=0x1bc77d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fc4c6fade0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x99efb0, th=0x1bc77d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fc4c6facccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fc46b890e20, parent=0x988b30, th=0x1bc77d0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fc4c6facd5b in ThreadWeaver::Thread::run (this=0x1bc77d0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fc4c4f9ad05 in QThreadPrivate::start (arg=0x1bc77d0) at thread/qthread_unix.cpp:331
#8  0x00007fc4c49f8efc in start_thread (arg=0x7fc46b891700) at pthread_create.c:304
#9  0x00007fc4ca22289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fc4ca9f1780 (LWP 1988)):
[KCrash Handler]
#6  QWidget::focusProxy (this=0x111) at kernel/qwidget.cpp:6271
#7  0x00007fc4c55fcf63 in effectiveFocusWidget (this=0x1c0c9d0) at ../../include/QtGui/private/../../../src/gui/kernel/qwidget_p.h:572
#8  QWidget::setAttribute (this=0x19c0c40, attribute=<optimized out>, on=true) at kernel/qwidget.cpp:10713
#9  0x00007fc4c56058b4 in QWidget::winId (this=0x19c0c40) at kernel/qwidget.cpp:2482
#10 0x00007fc4c74fb94f in KIO::SimpleJobPrivate::start (this=0x1fb33b0, slave=0x12d11a0) at ../../kio/kio/job.cpp:424
#11 0x00007fc4c74fc04b in KIO::TransferJobPrivate::start (this=0x1fb33b0, slave=0x12d11a0) at ../../kio/kio/job.cpp:1250
#12 0x00007fc4c758890b in startJob (slave=0x12d11a0, job=0x1ada660) at ../../kio/kio/scheduler.cpp:60
#13 KIO::ProtoQueue::startAJob (this=0x1508130) at ../../kio/kio/scheduler.cpp:630
#14 0x00007fc4c7588a20 in KIO::ProtoQueue::qt_metacall (this=0x1508130, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=<optimized out>) at ./scheduler_p.moc:190
#15 0x00007fc4c5094eba in QMetaObject::activate (sender=0x1508188, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3278
#16 0x00007fc4c5098789 in QObject::event (this=0x1508188, e=<optimized out>) at kernel/qobject.cpp:1181
#17 0x00007fc4c55b2424 in notify_helper (e=0x7fff78f1f920, receiver=0x1508188, this=0x844c90) at kernel/qapplication.cpp:4486
#18 QApplicationPrivate::notify_helper (this=0x844c90, receiver=0x1508188, e=0x7fff78f1f920) at kernel/qapplication.cpp:4458
#19 0x00007fc4c55b7291 in QApplication::notify (this=0x7fff78f1fc20, receiver=0x1508188, e=0x7fff78f1f920) at kernel/qapplication.cpp:4365
#20 0x00007fc4c7ae9126 in KApplication::notify (this=0x7fff78f1fc20, receiver=0x1508188, event=0x7fff78f1f920) at ../../kdeui/kernel/kapplication.cpp:311
#21 0x00007fc4c5081afc in QCoreApplication::notifyInternal (this=0x7fff78f1fc20, receiver=0x1508188, event=0x7fff78f1f920) at kernel/qcoreapplication.cpp:787
#22 0x00007fc4c50aed62 in sendEvent (event=0x7fff78f1f920, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#23 QTimerInfoList::activateTimers (this=0x847550) at kernel/qeventdispatcher_unix.cpp:603
#24 0x00007fc4c50ac514 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#25 0x00007fc4c2e2ba5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fc4c2e2c258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007fc4c2e2c429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007fc4c50aced6 in QEventDispatcherGlib::processEvents (this=0x816f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#29 0x00007fc4c565a07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#30 0x00007fc4c5080cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#31 0x00007fc4c5080ef7 in QEventLoop::exec (this=0x7fff78f1fbb0, flags=...) at kernel/qeventloop.cpp:201
#32 0x00007fc4c5085789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#33 0x00007fc4ca5d4b97 in kdemain (argc=1, argv=<optimized out>) at /build/buildd/rekonq-0.8.0/src/main.cpp:215
#34 0x00007fc4ca16230d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=1, ubp_av=0x7fff78f205b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff78f205a8) at libc-start.c:226
#35 0x0000000000400661 in _start ()

Possible duplicates by query: bug 286499, bug 285282, bug 285141, bug 284166, bug 282052.

Reported using DrKonqi