https://bugs.kde.org/show_bug.cgi?id=385064

            Bug ID: 385064
           Summary: KDevelop crash when clicking "Show documentation for"
                    in the code context browser
           Product: kdevelop
           Version: unspecified
          Platform: Compiled Sources
                OS: OS X
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdevelop-bugs-n...@kde.org
          Reporter: rjvber...@gmail.com
  Target Milestone: ---

Application: kdevelop (5.1.40)
 (Compiled from sources)
Qt Version: 5.8.0
Frameworks Version: 5.35.0
Operating System: Darwin 13.4.0 x86_64
Distribution (Platform): MacPorts Packages

-- Information about the crash:
- What I was doing when the application crashed:
1. open a Qt-based project
2. hover mouse over a known Qt class like QString
3. wait for the code context browser popup
4. click on "Show documentation for [QString]"

- Unusual behaviour I noticed:
The documentation toolview enables itself. Rendering starts but DrKonqi takes
over after a black rectangle appears below the 1st page headers. This could
just be an interrupted painting operation.

- Custom settings of the application:
The CMake and manpage plugins are disabled to avoid getting unwanted
documentation windows on startup or coming out of the pathreview plugin; the
documentation toolview is not on any toolbar either. Documentation viewing
should be handled by a dedicated application and not burden an already
(top)heavy IDE.

Ideally the "Show documentation for X" link shouldn't be shown if the
documentation toolview is disabled. Alternatively, this link should open the
documentation in an external browser.

The crash can be reproduced every time.

-- Backtrace:
Application: KDevelop (kdevelop), signal: Segmentation fault: 11
(lldb) process attach --pid 82821
Process 82821 stopped
Executable module set to
"/Applications/MacPorts/KF5/kdevelop.app/Contents/MacOS/kdevelop.bin".
Architecture set to: x86_64-apple-macosx.
(lldb) set term-width 200
(lldb) thread info
thread #1: tid = 0x1e16b95, 0x00007fff8fb78e20 libsystem_kernel.dylib`__wait4 +
8, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP

(lldb) bt all
* thread #1: tid = 0x1e16b95, 0x00007fff8fb78e20 libsystem_kernel.dylib`__wait4
+ 8, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
  * frame #0: 0x00007fff8fb78e20 libsystem_kernel.dylib`__wait4 + 8
    frame #1: 0x0000000103362cde libKF5Crash.5.dylib`KCrash::startProcess(int,
char const**, bool) [inlined] startProcessInternal(argc=<unavailable>,
directly=<unavailable>) + 125 at kcrash.cpp:651
    frame #2: 0x0000000103362c61
libKF5Crash.5.dylib`KCrash::startProcess(argc=<unavailable>,
argv=<unavailable>, waitAndExit=<unavailable>) + 17 at kcrash.cpp:633
    frame #3: 0x0000000103362aa5
libKF5Crash.5.dylib`KCrash::defaultCrashHandler(sig=11) + 1061 at
kcrash.cpp:530
    frame #4: 0x00007fff929405aa libsystem_platform.dylib`_sigtramp + 26
    frame #5: 0x000000010af1dbfe QtWebKitWidgets`QWebView::url() const + 14
    frame #6: 0x00000001073accc6
libKDevPlatformDocumentation.10.dylib`QtPrivate::QFunctorSlotObject<KDevelop::StandardDocumentationView::StandardDocumentationView(KDevelop::DocumentationFindWidget*,
QWidget*)::$_1, 1, QtPrivate::List<bool>, void>::impl(int,
QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) [inlined]
KDevelop::StandardDocumentationView::StandardDocumentationView((null)=false)::$_1::operator()(bool)
const + 21 at standarddocumentationview.cpp:167
    frame #7: 0x00000001073accb1
libKDevPlatformDocumentation.10.dylib`QtPrivate::QFunctorSlotObject<KDevelop::StandardDocumentationView::StandardDocumentationView(KDevelop::DocumentationFindWidget*,
QWidget*)::$_1, 1, QtPrivate::List<bool>, void>::impl(int,
QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) [inlined]
QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<bool>, void,
KDevelop::StandardDocumentationView::StandardDocumentationView(KDevelop::DocumentationFindWidget*,
QWidget*)::$_1>::call(KDevelop::StandardDocumentationView::StandardDocumentationView(KDevelop::DocumentationFindWidget*,
QWidget*)::$_1&, void**) at qobjectdefs_impl.h:137
    frame #8: 0x00000001073accb1
libKDevPlatformDocumentation.10.dylib`QtPrivate::QFunctorSlotObject<KDevelop::StandardDocumentationView::StandardDocumentationView(KDevelop::DocumentationFindWidget*,
QWidget*)::$_1, 1, QtPrivate::List<bool>, void>::impl(int,
QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) [inlined]
_ZN9QtPrivate7FunctorIZN8KDevelop25StandardDocumentationViewC1EPNS1_23DocumentationFindWidgetEP7QWidgetE3$_1Li1EE4callINS_4ListIJbEEEvEEvRS7_PvPSD_
at qobjectdefs_impl.h:194
    frame #9: 0x00000001073accb1
libKDevPlatformDocumentation.10.dylib`QtPrivate::QFunctorSlotObject<KDevelop::StandardDocumentationView::StandardDocumentationView(which=<unavailable>,
this_=<unavailable>, r=<unavailable>, a=<unavailable>, ret=<unavailable>)::$_1,
1, QtPrivate::List<bool>, void>::impl(int, QtPrivate::QSlotObjectBase*,
QObject*, void**, bool*) + 49 at qobject_impl.h:168
    frame #10: 0x0000000105f64fab QtCore`QMetaObject::activate(QObject*, int,
int, void**) [inlined] QtPrivate::QSlotObjectBase::call(this=<unavailable>,
r=<unavailable>, a=<unavailable>) + 2011 at qobject_impl.h:101
    frame #11: 0x0000000105f64f8f
QtCore`QMetaObject::activate(sender=0x00007f90bba48d90,
signalOffset=<unavailable>, local_signal_index=<unavailable>,
argv=<unavailable>) + 1983 at qobject.cpp:3728
    frame #12: 0x000000010af1ed1f
QtWebKitWidgets`QWebView::qt_static_metacall(QObject*, QMetaObject::Call, int,
void**) + 1391
    frame #13: 0x0000000105f653bb
QtCore`QMetaObject::activate(sender=0x00007f90cfa86c90,
signalOffset=<unavailable>, local_signal_index=<unavailable>,
argv=<unavailable>) + 3051 at qobject.cpp:3745
    frame #14: 0x000000010af1c170 QtWebKitWidgets`QWebPage::loadFinished(bool)
+ 64
    frame #15: 0x000000010af11179
QtWebKitWidgets`QWebFramePrivate::emitLoadFinished(bool, bool) + 57
    frame #16: 0x000000010af88314
QtWebKit`WebCore::FrameLoaderClientQt::dispatchDidFailProvisionalLoad(WebCore::ResourceError
const&) + 244
    frame #17: 0x000000010b23fc5e
QtWebKit`WebCore::FrameLoader::checkLoadCompleteForThisFrame() + 526
    frame #18: 0x000000010b236faf
QtWebKit`WebCore::FrameLoader::checkLoadComplete() + 319
    frame #19: 0x000000010b2419f5
QtWebKit`WebCore::FrameLoader::receivedMainResourceError(WebCore::ResourceError
const&) + 517
    frame #20: 0x000000010b21516a
QtWebKit`WebCore::CachedResource::checkNotify() + 186
    frame #21: 0x000000010b265a4e
QtWebKit`WebCore::SubresourceLoader::didCancel(WebCore::ResourceError const&) +
30
    frame #22: 0x000000010b25f949
QtWebKit`WebCore::ResourceLoader::cancel(WebCore::ResourceError const&) + 425
    frame #23: 0x000000010b2250ed
QtWebKit`WebCore::DocumentLoader::cancelMainResourceLoad(WebCore::ResourceError
const&) + 221
    frame #24: 0x000000010b224afb
QtWebKit`WebCore::DocumentLoader::stopLoading() + 219
    frame #25: 0x000000010b23e9d2
QtWebKit`WebCore::FrameLoader::stopAllLoaders(WebCore::ClearProvisionalItemPolicy)
+ 194
    frame #26: 0x000000010b240abf
QtWebKit`WebCore::FrameLoader::detachFromParent() + 127
    frame #27: 0x000000010afa0390 QtWebKit`QWebPageAdapter::deletePage() + 32
    frame #28: 0x000000010af132a1
QtWebKitWidgets`QWebPagePrivate::~QWebPagePrivate() + 129
    frame #29: 0x000000010af1338e
QtWebKitWidgets`QWebPagePrivate::~QWebPagePrivate() + 14
    frame #30: 0x000000010af17a32 QtWebKitWidgets`QWebPage::~QWebPage() + 34
    frame #31: 0x000000010af1d277
QtWebKitWidgets`QWebViewPrivate::detachCurrentPage() + 183
    frame #32: 0x000000010af1d2c8
QtWebKitWidgets`QWebViewPrivate::~QWebViewPrivate() + 24
    frame #33: 0x000000010af1d7fd QtWebKitWidgets`QWebView::~QWebView() + 45
    frame #34: 0x0000000105f5ce53
QtCore`QObjectPrivate::deleteChildren(this=0x00007f90bbaf02d0) + 243 at
qobject.cpp:1975
    frame #35: 0x0000000104f747fd
QtWidgets`QWidget::~QWidget(this=0x00007f90bbaf02d0) + 1133 at qwidget.cpp:1694
    frame #36: 0x00000001073ac35f
libKDevPlatformDocumentation.10.dylib`KDevelop::StandardDocumentationView::~StandardDocumentationView()
[inlined]
KDevelop::StandardDocumentationView::~StandardDocumentationView(this=0x00007f90bbae95c0)
+ 95 at standarddocumentationview.cpp:175
    frame #37: 0x00000001073ac30a
libKDevPlatformDocumentation.10.dylib`KDevelop::StandardDocumentationView::~StandardDocumentationView()
[inlined]
KDevelop::StandardDocumentationView::~StandardDocumentationView(this=0x00007f90bbae95c0)
at standarddocumentationview.cpp:175
    frame #38: 0x00000001073ac30a
libKDevPlatformDocumentation.10.dylib`KDevelop::StandardDocumentationView::~StandardDocumentationView(this=0x00007f90bbae95c0)
+ 10 at standarddocumentationview.cpp:175
    frame #39: 0x0000000105f5d878 QtCore`QObject::event(QEvent*) [inlined]
qDeleteInEventHandler(o=0x00007f90bbae95c0) + 14 at qobject.cpp:4557
    frame #40: 0x0000000105f5d86a
QtCore`QObject::event(this=0x00007f90bbae95c0, e=<unavailable>) + 826 at
qobject.cpp:1254
    frame #41: 0x0000000104f85927
QtWidgets`QWidget::event(this=0x00007f90bbae95c0, event=0x00007f90cc827bc0) +
3495 at qwidget.cpp:9220
    frame #42: 0x0000000104f43a6d
QtWidgets`QApplicationPrivate::notify_helper(this=<unavailable>,
receiver=0x00007f90bbae95c0, e=0x00007f90cc827bc0) + 269 at
qapplication.cpp:3745
    frame #43: 0x0000000104f46de2
QtWidgets`QApplication::notify(this=<unavailable>, receiver=<unavailable>,
e=<unavailable>) + 8306 at qapplication.cpp:3708
    frame #44: 0x0000000105f34717
QtCore`QCoreApplication::notifyInternal2(receiver=0x00007f90bbae95c0,
event=0x00007f90cc827bc0) + 167 at qcoreapplication.cpp:995
    frame #45: 0x0000000105f353ef
QtCore`QCoreApplicationPrivate::sendPostedEvents(receiver=0x0000000000000000,
event_type=0, data=0x00007f90c8e00940) + 591 at qcoreapplication.h:231
    frame #46: 0x000000010f9e1b6a
libqaltcocoa.dylib`QCocoaEventDispatcherPrivate::processPostedEvents(this=0x00007f90c8e99580)
+ 314 at qcocoaeventdispatcher.mm:898
    frame #47: 0x000000010f9e2583
libqaltcocoa.dylib`QCocoaEventDispatcherPrivate::postedEventsSourceCallback(info=0x00007f90c8e99580)
+ 179 at qcocoaeventdispatcher.mm:935
    frame #48: 0x00007fff9a53a5b1
CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
    frame #49: 0x00007fff9a52bc62 CoreFoundation`__CFRunLoopDoSources0 + 242
    frame #50: 0x00007fff9a52b3ef CoreFoundation`__CFRunLoopRun + 831
    frame #51: 0x00007fff9a52ae75 CoreFoundation`CFRunLoopRunSpecific + 309
    frame #52: 0x00007fff92a6ba0d HIToolbox`RunCurrentEventLoopInMode + 226
    frame #53: 0x00007fff92a6b7b7 HIToolbox`ReceiveNextEventCommon + 479
    frame #54: 0x00007fff92a6b5bc
HIToolbox`_BlockUntilNextEventMatchingListInModeWithFilter + 65
    frame #55: 0x00007fff8ee9324e AppKit`_DPSNextEvent + 1434
    frame #56: 0x00007fff8ee9289b AppKit`-[NSApplication
nextEventMatchingMask:untilDate:inMode:dequeue:] + 122
    frame #57: 0x00007fff8ee8699c AppKit`-[NSApplication run] + 553
    frame #58: 0x000000010f9e1266
libqaltcocoa.dylib`QCocoaEventDispatcher::processEvents(this=0x00007f90c8e9c700,
flags=<unavailable>) + 2918 at qcocoaeventdispatcher.mm:431
    frame #59: 0x0000000105f3090e
QtCore`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) [inlined]
QEventLoop::processEvents(this=<unavailable>, flags=<unavailable>) + 398 at
qeventloop.cpp:134
    frame #60: 0x0000000105f308f4
QtCore`QEventLoop::exec(this=0x00007fff5ccc5dd0, flags=<unavailable>) + 372 at
qeventloop.cpp:212
    frame #61: 0x0000000105f34dfa QtCore`QCoreApplication::exec() + 346 at
qcoreapplication.cpp:1268
    frame #62: 0x0000000102f52766 kdevelop.bin`main(argc=<unavailable>,
argv=0x00007fff5ccc6108) + 52438 at main.cpp:917
    frame #63: 0x00007fff906e25fd libdyld.dylib`start + 1
    frame #64: 0x00007fff906e25fd libdyld.dylib`start + 1

  thread #2: tid = 0x1e16b9a, 0x00007fff8fb78e22 libsystem_kernel.dylib`__wait4
+ 10, queue = 'com.apple.libdispatch-manager'
    frame #0: 0x00007fff8fb78e22 libsystem_kernel.dylib`__wait4 + 10
    frame #1: 0x0000000103362cde libKF5Crash.5.dylib`KCrash::startProcess(int,
char const**, bool) [inlined] startProcessInternal(argc=<unavailable>,
directly=<unavailable>) + 125 at kcrash.cpp:651
    frame #2: 0x0000000103362c61
libKF5Crash.5.dylib`KCrash::startProcess(argc=<unavailable>,
argv=<unavailable>, waitAndExit=<unavailable>) + 17 at kcrash.cpp:633
    frame #3: 0x0000000103362aa5
libKF5Crash.5.dylib`KCrash::defaultCrashHandler(sig=11) + 1061 at
kcrash.cpp:530
    frame #4: 0x00007fff929405aa libsystem_platform.dylib`_sigtramp + 26
    frame #5: 0x00007fff8fb79663 libsystem_kernel.dylib`kevent64 + 11
    frame #6: 0x00007fff93ec8136 libdispatch.dylib`_dispatch_mgr_thread + 52

  thread #3: tid = 0x1e16b9c, 0x00007fff8fb78e6a
libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #0: 0x00007fff8fb78e6a libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0x00007fff8dc7ef08 libsystem_pthread.dylib`_pthread_wqthread +
330
    frame #2: 0x00007fff8dc81fb9 libsystem_pthread.dylib`start_wqthread + 13

  thread #4: tid = 0x1e16ba8, 0x00007fff8fb7994a libsystem_kernel.dylib`poll +
10, name = 'QDBusConnectionManager'
    frame #0: 0x00007fff8fb7994a libsystem_kernel.dylib`poll + 10
    frame #1: 0x0000000105f86cd0 QtCore`qt_safe_poll(pollfd*, unsigned int,
timespec const*) [inlined] qt_ppoll(fds=0x00007f90c8f29298, nfds=2) + 528 at
qcore_unix.cpp:83
    frame #2: 0x0000000105f86cbb QtCore`qt_safe_poll(fds=0x00007f90c8f29298,
nfds=2, timeout_ts=0x0000000000000000) + 507 at qcore_unix.cpp:102
    frame #3: 0x0000000105f88359
QtCore`QEventDispatcherUNIX::processEvents(this=<unavailable>,
flags=<unavailable>) + 857 at qeventdispatcher_unix.cpp:500
    frame #4: 0x0000000105f3090e
QtCore`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) [inlined]
QEventLoop::processEvents(this=<unavailable>, flags=<unavailable>) + 398 at
qeventloop.cpp:134
    frame #5: 0x0000000105f308f4
QtCore`QEventLoop::exec(this=0x0000000112b54e30, flags=<unavailable>) + 372 at
qeventloop.cpp:212
    frame #6: 0x0000000105d70e62 QtCore`QThread::exec(this=<unavailable>) + 114
at qthread.cpp:507
    frame #7: 0x0000000104b8f783
QtDBus`QDBusConnectionManager::run(this=0x00007f90c8ebc460) + 19 at
qdbusconnection.cpp:170
    frame #8: 0x0000000105d74867
QtCore`QThreadPrivate::start(arg=0x00007f90c8ebc460) + 359 at
qthread_unix.cpp:368
    frame #9: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #10: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #11: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #5: tid = 0x1e16bac, 0x00007fff8fb74a1a
libsystem_kernel.dylib`mach_msg_trap + 10
    frame #0: 0x00007fff8fb74a1a libsystem_kernel.dylib`mach_msg_trap + 10
    frame #1: 0x00007fff8fb73d18 libsystem_kernel.dylib`mach_msg + 64
    frame #2: 0x00007fff9a52bf15 CoreFoundation`__CFRunLoopServiceMachPort +
181
    frame #3: 0x00007fff9a52b539 CoreFoundation`__CFRunLoopRun + 1161
    frame #4: 0x00007fff9a52ae75 CoreFoundation`CFRunLoopRunSpecific + 309
    frame #5: 0x00007fff8f03305e AppKit`_NSEventThread + 144
    frame #6: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #7: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #8: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #6: tid = 0x1e16bf9, 0x00007fff8fb7994a libsystem_kernel.dylib`poll +
10, name = 'QThread'
    frame #0: 0x00007fff8fb7994a libsystem_kernel.dylib`poll + 10
    frame #1: 0x0000000105f86b30 QtCore`qt_safe_poll(pollfd*, unsigned int,
timespec const*) [inlined] qt_ppoll(fds=0x00007f90cba2c4a8, nfds=1) + 112 at
qcore_unix.cpp:83
    frame #2: 0x0000000105f86af5 QtCore`qt_safe_poll(fds=0x00007f90cba2c4a8,
nfds=1, timeout_ts=0x0000000115e81d10) + 53 at qcore_unix.cpp:111
    frame #3: 0x0000000105f88359
QtCore`QEventDispatcherUNIX::processEvents(this=<unavailable>,
flags=<unavailable>) + 857 at qeventdispatcher_unix.cpp:500
    frame #4: 0x0000000105f3090e
QtCore`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) [inlined]
QEventLoop::processEvents(this=<unavailable>, flags=<unavailable>) + 398 at
qeventloop.cpp:134
    frame #5: 0x0000000105f308f4
QtCore`QEventLoop::exec(this=0x0000000115e81de0, flags=<unavailable>) + 372 at
qeventloop.cpp:212
    frame #6: 0x0000000105d70e62 QtCore`QThread::exec(this=<unavailable>) + 114
at qthread.cpp:507
    frame #7: 0x000000010668590f
libKDevPlatformLanguage.10.dylib`KDevelop::DUChainPrivate::CleanupThread::run(this=0x00007f90cb850660)
+ 159 at duchain.cpp:283
    frame #8: 0x0000000105d74867
QtCore`QThreadPrivate::start(arg=0x00007f90cb850660) + 359 at
qthread_unix.cpp:368
    frame #9: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #10: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #11: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #7: tid = 0x1e16bfe, 0x00007fff8fb7994a libsystem_kernel.dylib`poll +
10, name = 'KDevelop::CompletionWorkerThread'
    frame #0: 0x00007fff8fb7994a libsystem_kernel.dylib`poll + 10
    frame #1: 0x0000000105f86cd0 QtCore`qt_safe_poll(pollfd*, unsigned int,
timespec const*) [inlined] qt_ppoll(fds=0x00007f90cba19218, nfds=1) + 528 at
qcore_unix.cpp:83
    frame #2: 0x0000000105f86cbb QtCore`qt_safe_poll(fds=0x00007f90cba19218,
nfds=1, timeout_ts=0x0000000000000000) + 507 at qcore_unix.cpp:102
    frame #3: 0x0000000105f88359
QtCore`QEventDispatcherUNIX::processEvents(this=<unavailable>,
flags=<unavailable>) + 857 at qeventdispatcher_unix.cpp:500
    frame #4: 0x0000000105f3090e
QtCore`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) [inlined]
QEventLoop::processEvents(this=<unavailable>, flags=<unavailable>) + 398 at
qeventloop.cpp:134
    frame #5: 0x0000000105f308f4
QtCore`QEventLoop::exec(this=0x000000011f9f0db0, flags=<unavailable>) + 372 at
qeventloop.cpp:212
    frame #6: 0x0000000105d70e62 QtCore`QThread::exec(this=<unavailable>) + 114
at qthread.cpp:507
    frame #7: 0x0000000106771c84
libKDevPlatformLanguage.10.dylib`KDevelop::CompletionWorkerThread::run(this=0x00007f90cc14b590)
+ 388 at codecompletionmodel.cpp:79
    frame #8: 0x0000000105d74867
QtCore`QThreadPrivate::start(arg=0x00007f90cc14b590) + 359 at
qthread_unix.cpp:368
    frame #9: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #10: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #11: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #8: tid = 0x1e16c10, 0x00007fff8fb7994a libsystem_kernel.dylib`poll +
10, name = 'Qt bearer thread'
    frame #0: 0x00007fff8fb7994a libsystem_kernel.dylib`poll + 10
    frame #1: 0x0000000105f86cd0 QtCore`qt_safe_poll(pollfd*, unsigned int,
timespec const*) [inlined] qt_ppoll(fds=0x00007f90c8d27338, nfds=1) + 528 at
qcore_unix.cpp:83
    frame #2: 0x0000000105f86cbb QtCore`qt_safe_poll(fds=0x00007f90c8d27338,
nfds=1, timeout_ts=0x0000000000000000) + 507 at qcore_unix.cpp:102
    frame #3: 0x0000000105f88359
QtCore`QEventDispatcherUNIX::processEvents(this=<unavailable>,
flags=<unavailable>) + 857 at qeventdispatcher_unix.cpp:500
    frame #4: 0x0000000105f3090e
QtCore`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) [inlined]
QEventLoop::processEvents(this=<unavailable>, flags=<unavailable>) + 398 at
qeventloop.cpp:134
    frame #5: 0x0000000105f308f4
QtCore`QEventLoop::exec(this=0x0000000120b6ae60, flags=<unavailable>) + 372 at
qeventloop.cpp:212
    frame #6: 0x0000000105d70e62 QtCore`QThread::exec(this=<unavailable>) + 114
at qthread.cpp:507
    frame #7: 0x0000000105d74867
QtCore`QThreadPrivate::start(arg=0x00007f90cdb868e0) + 359 at
qthread_unix.cpp:368
    frame #8: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #9: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #10: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #9: tid = 0x1e16c13, 0x00007fff8fb789aa
libsystem_kernel.dylib`__select + 10, name = 'com.apple.CFSocket.private'
    frame #0: 0x00007fff8fb789aa libsystem_kernel.dylib`__select + 10
    frame #1: 0x00007fff9a577a03 CoreFoundation`__CFSocketManager + 867
    frame #2: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #3: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #4: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #10: tid = 0x1e16d2d, 0x00007fff8fb78716
libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'Queue(0x7f90cb789540)[01]'
    frame #0: 0x00007fff8fb78716 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff8dc7fc3b libsystem_pthread.dylib`_pthread_cond_wait +
727
    frame #2: 0x0000000105d75dbb
QtCore`QWaitConditionPrivate::wait(this=0x00007f90cb789620, time=<unavailable>)
+ 75 at qwaitcondition_unix.cpp:143
    frame #3: 0x0000000105d75d4c
QtCore`QWaitCondition::wait(this=0x00007f90cb789590, mutex=0x00007f90cb747780,
time=18446744073709551615) + 156 at qwaitcondition_unix.cpp:215
    frame #4: 0x0000000107609604
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) [inlined]
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(this=<unavailable>,
th=<unavailable>) + 804 at weaver.cpp:594
    frame #5: 0x00000001076095ed
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(this=<unavailable>,
th=0x00007f90d0509820, threadWasBusy=<unavailable>,
suspendIfInactive=<unavailable>, justReturning=<unavailable>) + 781 at
weaver.cpp:554
    frame #6: 0x000000010760dff0
libKF5ThreadWeaver.5.dylib`ThreadWeaver::WorkingHardState::applyForWork(this=0x00007f90cb778ce0,
th=0x00007f90d0509820, wasBusy=false) + 64 at workinghardstate.cpp:66
    frame #7: 0x000000010760e0f5 libKF5ThreadWeaver.5.dylib`non-virtual thunk
to ThreadWeaver::WorkingHardState::applyForWork(this=<unavailable>,
th=<unavailable>, wasBusy=<unavailable>) + 21 at workinghardstate.cpp:75
    frame #8: 0x0000000107609902
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Weaver::applyForWork(this=<unavailable>,
th=<unavailable>, wasBusy=false) + 50 at weaver.cpp:568
    frame #9: 0x000000010760e035
libKF5ThreadWeaver.5.dylib`ThreadWeaver::WorkingHardState::applyForWork(this=<unavailable>,
th=<unavailable>, wasBusy=<unavailable>) + 133 at workinghardstate.cpp:73
    frame #10: 0x000000010760e0f5 libKF5ThreadWeaver.5.dylib`non-virtual thunk
to ThreadWeaver::WorkingHardState::applyForWork(this=<unavailable>,
th=<unavailable>, wasBusy=<unavailable>) + 21 at workinghardstate.cpp:75
    frame #11: 0x0000000107609902
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Weaver::applyForWork(this=<unavailable>,
th=<unavailable>, wasBusy=true) + 50 at weaver.cpp:568
    frame #12: 0x000000010760ba66
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Thread::run(this=0x00007f90d0509820) +
118 at thread.cpp:103
    frame #13: 0x0000000105d74867
QtCore`QThreadPrivate::start(arg=0x00007f90d0509820) + 359 at
qthread_unix.cpp:368
    frame #14: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #15: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #16: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #11: tid = 0x1e16d2e, 0x00007fff8fb78716
libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'Queue(0x7f90cb789540)[02]'
    frame #0: 0x00007fff8fb78716 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff8dc7fc3b libsystem_pthread.dylib`_pthread_cond_wait +
727
    frame #2: 0x0000000105d75dbb
QtCore`QWaitConditionPrivate::wait(this=0x00007f90cb789620, time=<unavailable>)
+ 75 at qwaitcondition_unix.cpp:143
    frame #3: 0x0000000105d75d4c
QtCore`QWaitCondition::wait(this=0x00007f90cb789590, mutex=0x00007f90cb747780,
time=18446744073709551615) + 156 at qwaitcondition_unix.cpp:215
    frame #4: 0x0000000107609604
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) [inlined]
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(this=<unavailable>,
th=<unavailable>) + 804 at weaver.cpp:594
    frame #5: 0x00000001076095ed
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(this=<unavailable>,
th=0x00007f90cc3c9d50, threadWasBusy=<unavailable>,
suspendIfInactive=<unavailable>, justReturning=<unavailable>) + 781 at
weaver.cpp:554
    frame #6: 0x000000010760dff0
libKF5ThreadWeaver.5.dylib`ThreadWeaver::WorkingHardState::applyForWork(this=0x00007f90cb778ce0,
th=0x00007f90cc3c9d50, wasBusy=true) + 64 at workinghardstate.cpp:66
    frame #7: 0x000000010760e0f5 libKF5ThreadWeaver.5.dylib`non-virtual thunk
to ThreadWeaver::WorkingHardState::applyForWork(this=<unavailable>,
th=<unavailable>, wasBusy=<unavailable>) + 21 at workinghardstate.cpp:75
    frame #8: 0x0000000107609902
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Weaver::applyForWork(this=<unavailable>,
th=<unavailable>, wasBusy=true) + 50 at weaver.cpp:568
    frame #9: 0x000000010760ba66
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Thread::run(this=0x00007f90cc3c9d50) +
118 at thread.cpp:103
    frame #10: 0x0000000105d74867
QtCore`QThreadPrivate::start(arg=0x00007f90cc3c9d50) + 359 at
qthread_unix.cpp:368
    frame #11: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #12: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #13: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #12: tid = 0x1e16d2f, 0x00007fff8fb78716
libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'Queue(0x7f90cb789540)[03]'
    frame #0: 0x00007fff8fb78716 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff8dc7fc3b libsystem_pthread.dylib`_pthread_cond_wait +
727
    frame #2: 0x0000000105d75dbb
QtCore`QWaitConditionPrivate::wait(this=0x00007f90cb789620, time=<unavailable>)
+ 75 at qwaitcondition_unix.cpp:143
    frame #3: 0x0000000105d75d4c
QtCore`QWaitCondition::wait(this=0x00007f90cb789590, mutex=0x00007f90cb747780,
time=18446744073709551615) + 156 at qwaitcondition_unix.cpp:215
    frame #4: 0x0000000107609604
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) [inlined]
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(this=<unavailable>,
th=<unavailable>) + 804 at weaver.cpp:594
    frame #5: 0x00000001076095ed
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(this=<unavailable>,
th=0x00007f90d055fe40, threadWasBusy=<unavailable>,
suspendIfInactive=<unavailable>, justReturning=<unavailable>) + 781 at
weaver.cpp:554
    frame #6: 0x000000010760dff0
libKF5ThreadWeaver.5.dylib`ThreadWeaver::WorkingHardState::applyForWork(this=0x00007f90cb778ce0,
th=0x00007f90d055fe40, wasBusy=false) + 64 at workinghardstate.cpp:66
    frame #7: 0x000000010760e0f5 libKF5ThreadWeaver.5.dylib`non-virtual thunk
to ThreadWeaver::WorkingHardState::applyForWork(this=<unavailable>,
th=<unavailable>, wasBusy=<unavailable>) + 21 at workinghardstate.cpp:75
    frame #8: 0x0000000107609902
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Weaver::applyForWork(this=<unavailable>,
th=<unavailable>, wasBusy=false) + 50 at weaver.cpp:568
    frame #9: 0x000000010760e035
libKF5ThreadWeaver.5.dylib`ThreadWeaver::WorkingHardState::applyForWork(this=<unavailable>,
th=<unavailable>, wasBusy=<unavailable>) + 133 at workinghardstate.cpp:73
    frame #10: 0x000000010760e0f5 libKF5ThreadWeaver.5.dylib`non-virtual thunk
to ThreadWeaver::WorkingHardState::applyForWork(this=<unavailable>,
th=<unavailable>, wasBusy=<unavailable>) + 21 at workinghardstate.cpp:75
    frame #11: 0x0000000107609902
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Weaver::applyForWork(this=<unavailable>,
th=<unavailable>, wasBusy=true) + 50 at weaver.cpp:568
    frame #12: 0x000000010760ba66
libKF5ThreadWeaver.5.dylib`ThreadWeaver::Thread::run(this=0x00007f90d055fe40) +
118 at thread.cpp:103
    frame #13: 0x0000000105d74867
QtCore`QThreadPrivate::start(arg=0x00007f90d055fe40) + 359 at
qthread_unix.cpp:368
    frame #14: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #15: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #16: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #13: tid = 0x1e16d3a, 0x00007fff8fb7994a libsystem_kernel.dylib`poll +
10, name = 'OutputFilterThread'
    frame #0: 0x00007fff8fb7994a libsystem_kernel.dylib`poll + 10
    frame #1: 0x0000000105f86cd0 QtCore`qt_safe_poll(pollfd*, unsigned int,
timespec const*) [inlined] qt_ppoll(fds=0x00007f90d068f4a8, nfds=1) + 528 at
qcore_unix.cpp:83
    frame #2: 0x0000000105f86cbb QtCore`qt_safe_poll(fds=0x00007f90d068f4a8,
nfds=1, timeout_ts=0x0000000000000000) + 507 at qcore_unix.cpp:102
    frame #3: 0x0000000105f88359
QtCore`QEventDispatcherUNIX::processEvents(this=<unavailable>,
flags=<unavailable>) + 857 at qeventdispatcher_unix.cpp:500
    frame #4: 0x0000000105f3090e
QtCore`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) [inlined]
QEventLoop::processEvents(this=<unavailable>, flags=<unavailable>) + 398 at
qeventloop.cpp:134
    frame #5: 0x0000000105f308f4
QtCore`QEventLoop::exec(this=0x00000001219d2e60, flags=<unavailable>) + 372 at
qeventloop.cpp:212
    frame #6: 0x0000000105d70e62 QtCore`QThread::exec(this=<unavailable>) + 114
at qthread.cpp:507
    frame #7: 0x0000000105d74867
QtCore`QThreadPrivate::start(arg=0x00007f90d20151e8) + 359 at
qthread_unix.cpp:368
    frame #8: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #9: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #10: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #14: tid = 0x1e171ea, 0x00007fff8fb78716
libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'JavaScriptCore::BlockFree'
    frame #0: 0x00007fff8fb78716 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff8dc7fc3b libsystem_pthread.dylib`_pthread_cond_wait +
727
    frame #2: 0x000000010c04a028
QtWebKit`JSC::BlockAllocator::blockFreeingThreadMain() + 264
    frame #3: 0x000000010c333abf QtWebKit`WTF::wtfThreadEntryPoint(void*) + 15
    frame #4: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #5: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #6: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #15: tid = 0x1e171eb, 0x00007fff8fb78716
libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'JavaScriptCore::Marking'
    frame #0: 0x00007fff8fb78716 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff8dc7fc3b libsystem_pthread.dylib`_pthread_cond_wait +
727
    frame #2: 0x000000010c04ae77 QtWebKit`JSC::GCThread::waitForNextPhase() +
119
    frame #3: 0x000000010c04af08 QtWebKit`JSC::GCThread::gcThreadMain() + 88
    frame #4: 0x000000010c333abf QtWebKit`WTF::wtfThreadEntryPoint(void*) + 15
    frame #5: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #6: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #7: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #16: tid = 0x1e171ec, 0x00007fff8fb78716
libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'JavaScriptCore::Marking'
    frame #0: 0x00007fff8fb78716 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff8dc7fc3b libsystem_pthread.dylib`_pthread_cond_wait +
727
    frame #2: 0x000000010c04ae77 QtWebKit`JSC::GCThread::waitForNextPhase() +
119
    frame #3: 0x000000010c04af08 QtWebKit`JSC::GCThread::gcThreadMain() + 88
    frame #4: 0x000000010c333abf QtWebKit`WTF::wtfThreadEntryPoint(void*) + 15
    frame #5: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #6: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #7: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13

  thread #17: tid = 0x1e171ed, 0x00007fff8fb78716
libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'JavaScriptCore::Marking'
    frame #0: 0x00007fff8fb78716 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff8dc7fc3b libsystem_pthread.dylib`_pthread_cond_wait +
727
    frame #2: 0x000000010c04ae77 QtWebKit`JSC::GCThread::waitForNextPhase() +
119
    frame #3: 0x000000010c04af08 QtWebKit`JSC::GCThread::gcThreadMain() + 88
    frame #4: 0x000000010c333abf QtWebKit`WTF::wtfThreadEntryPoint(void*) + 15
    frame #5: 0x00007fff8dc7d899 libsystem_pthread.dylib`_pthread_body + 138
    frame #6: 0x00007fff8dc7d72a libsystem_pthread.dylib`_pthread_start + 137
    frame #7: 0x00007fff8dc81fc9 libsystem_pthread.dylib`thread_start + 13
(lldb) detach
Process 82821 detached

Possible duplicates by query: bug 384983, bug 384977, bug 384886, bug 384885,
bug 384852.

Reported using DrKonqi

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