188 [1]	        contents->Send(new RenderViewObserverHelper_ClearScripts(contents->GetRoutingID()));
0x7fffef09d751  <+0x0041>        48 8b 7c 24 10              mov    rdi,QWORD PTR [rsp+0x10]
0x7fffef09d756  <+0x0046>        48 8b 47 08                 mov    rax,QWORD PTR [rdi+0x8] <---SIGSEGV
0x7fffef09d75a  <+0x004a>        48 8b 28                    mov    rbp,QWORD PTR [rax]
0x7fffef09d75d  <+0x004d>        48 8b 07                    mov    rax,QWORD PTR [rdi]
0x7fffef09d760  <+0x0050>        ff 90 88 00 00 00           call   QWORD PTR [rax+0x88]

rax = 0x0
rdi = 0x360000004b1
rsp = 7fffffffcfc0
rbp = 7fffffffd060

conents = 0x360000004b1
this = 0xcbdcc0


Call stack:
------------------------------

Thread 1 (Thread 0x7ffff7f20800 (LWP 4033)):
#0  0x00007fffef09d756 in QtWebEngineCore::UserScriptControllerHost::clearAllScripts (this=0xcbe190, adapter=<optimized out>) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/core/user_script_controller_host.cpp:188
        contents = 0x360000004b1
#1  0x00000000004a877d in CMyForm::loadFinished (this=0x5d4b2e0) at form.cpp:32
No locals. // (this is my loadFinished slot, just calling webView->page()->scripts().clear(); there)

#2  0x00000000004fd954 in CSnNet::qt_static_metacall (_o=0x5d4b2e0, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0x7fffffffd1d0) at moc_snnet.cpp:111
        _t = 0x5d4b2e0
#3  0x00007fffec472229 in QMetaObject::activate (sender=0x6052b60, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fffffffd1d0) at kernel/qobject.cpp:3730
        receiverInSameThread = <optimized out>
        sw = {receiver = 0x5d4b2e0, previousSender = 0x0, currentSender = {sender = 0x6052b60, signal = 9, ref = 1}, switched = true}
        callFunction = 0x4fd7ea <CSnNet::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>
        receiver = 0x5d4b2e0
        method_relative = 6
        c = 0x5cf2250
        last = 0x5cf2250
        locker = {val = 140737161798912}
        connectionLists = {connectionLists = 0x609a620}
        list = <optimized out>
        signal_index = 9
        empty_argv = {0x0}
        currentThreadId = 0x7ffff7f20800
#4  0x00007fffec4727d7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7ffff3f5a3c0 <QWebEngineView::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fffffffd1d0) at kernel/qobject.cpp:3595
No locals.
#5  0x00007ffff3d4cf52 in QWebEngineView::loadFinished (this=<optimized out>, _t1=<optimized out>) at .moc/moc_qwebengineview.cpp:303
        _a = {0x0, 0x7fffffffd1cc}
#6  0x00007fffec4722cc in QtPrivate::QSlotObjectBase::call (a=0x7fffffffd310, r=0x6052b60, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
No locals.
#7  QMetaObject::activate (sender=sender@entry=0x6066720, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fffffffd310) at kernel/qobject.cpp:3715
        obj = {d = 0x603de30}
        receiverInSameThread = <optimized out>
        sw = {receiver = 0x6052b60, previousSender = 0x0, currentSender = {sender = 0x6066720, signal = 5, ref = 1}, switched = true}
        callFunction = <optimized out>
        receiver = 0x6052b60
        method_relative = <optimized out>
        c = 0x6065ae0
        last = 0x6065ae0
        locker = {val = 140737161799048}
        connectionLists = {connectionLists = 0x603f000}
        list = <optimized out>
        signal_index = 5
        empty_argv = {0x0}
        currentThreadId = 0x7ffff7f20800
#8  0x00007fffec4727d7 in QMetaObject::activate (sender=sender@entry=0x6066720, m=m@entry=0x7ffff3f5a000 <QWebEnginePage::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fffffffd310) at kernel/qobject.cpp:3595
No locals.
#9  0x00007ffff3d40642 in QWebEnginePage::loadFinished (this=this@entry=0x6066720, _t1=<optimized out>, _t1@entry=true) at .moc/moc_qwebenginepage.cpp:408
        _a = {0x0, 0x7fffffffd30c}
#10 0x00007ffff3d41d3c in QWebEnginePagePrivate::loadFinished (this=0x6066c50, success=<optimized out>, url=..., isErrorPage=<optimized out>, errorCode=<optimized out>, errorDescription=...) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/webenginewidgets/api/qwebenginepage.cpp:216
No locals.
#11 0x00007fffef0a7c21 in QtWebEngineCore::WebContentsDelegateQt::DidFinishLoad (this=0x607aaa0, render_frame_host=<optimized out>, validated_url=...) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/core/web_contents_delegate_qt.cpp:240
        entry = <optimized out>
        favicon = <optimized out>
#12 0x00007fffefc77c4f in content::WebContentsImpl::OnDidFinishLoad (this=<optimized out>, url=...) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/content/browser/web_contents/web_contents_impl.cc:3035
        it_inside_observer_macro = {list_ = {<base::internal::WeakPtrBase> = {ref_ = {flag_ = {ptr_ = 0x3f113a0}}}, ptr_ = 0x5ced838}, index_ = 6, max_index_ = 18446744073709551615}
        obs = <optimized out>
        validated_url = {spec_ = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x5cf7a50 "http://www.pixiv.net/member_illust.php?mode=manga&illust_id=57659932"}, _M_string_length = 68, {_M_local_buf = "D", '\000' <repeats 11 times>, "\377\377\377\377", _M_allocated_capacity = 68}}, is_valid_ = true, parsed_ = {scheme = {begin = 0, len = 4}, username = {begin = 0, len = -1}, password = {begin = 0, len = -1}, host = {begin = 7, len = 13}, port = {begin = 0, len = -1}, path = {begin = 20, len = 18}, query = {begin = 39, len = 29}, ref = {begin = 0, len = -1}, inner_parsed_ = 0x0}, inner_url_ = {impl_ = {data_ = {<base::DefaultDeleter<GURL>> = {<No data fields>}, ptr = 0x0}}}}
        render_process_host = <optimized out>
        rfh = <optimized out>
        url = <optimized out>
        this = <optimized out>
#13 0x00007fffefc820c2 in base::DispatchToMethodImpl<content::WebContentsImpl, void (content::WebContentsImpl::*)(GURL const&), GURL, 0ul> (arg=..., method=<optimized out>, obj=0x5ced620) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/base/tuple.h:254
No locals.
#14 base::DispatchToMethod<content::WebContentsImpl, void (content::WebContentsImpl::*)(GURL const&), GURL> (arg=..., method=(void (content::WebContentsImpl::*)(content::WebContentsImpl * const, const GURL &)) 0x7fffefc77b60 <content::WebContentsImpl::OnDidFinishLoad(GURL const&)>, obj=0x5ced620) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/base/tuple.h:261
No locals.
#15 FrameHostMsg_DidFinishLoad::Dispatch<content::WebContentsImpl, content::WebContentsImpl, void, void (content::WebContentsImpl::*)(GURL const&)> (sender=0x5ced620, parameter=0x0, func=<optimized out>, obj=0x5ced620, msg=0x7fff8c31c060) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/content/common/frame_messages.h:734
        p = {<base::TupleBaseImpl<base::IndexSequence<0ul>, GURL>> = {<base::TupleLeaf<0ul, GURL>> = {x = {spec_ = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x607f610 "http://www.pixiv.net/member_illust.php?mode=manga&illust_id=57659932"}, _M_string_length = 68, {_M_local_buf = "d\000\000\000\000\000\000\000UD\335`\000\000\000", _M_allocated_capacity = 100}}, is_valid_ = true, parsed_ = {scheme = {begin = 0, len = 4}, username = {begin = 0, len = -1}, password = {begin = 0, len = -1}, host = {begin = 7, len = 13}, port = {begin = 0, len = -1}, path = {begin = 20, len = 18}, query = {begin = 39, len = 29}, ref = {begin = 0, len = -1}, inner_parsed_ = 0x0}, inner_url_ = {impl_ = {data_ = {<base::DefaultDeleter<GURL>> = {<No data fields>}, ptr = 0x0}}}}}, <No data fields>}, <No data fields>}
#16 content::WebContentsImpl::OnMessageReceived (this=0x5ced620, render_view_host=<optimized out>, render_frame_host=<optimized out>, message=...) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/content/browser/web_contents/web_contents_impl.cc:569
        some_profiler_variable___LINE__ = {birth_ = 0x5d95550, stopwatch_ = {start_time_ = {ms_ = 1625113}, wallclock_duration_ms_ = 0, current_thread_data_ = 0x5d15c90, excluded_duration_ms_ = 0, parent_ = 0x7fffffffddf0}}
        param__ = 0x0
        ipc_message__ = @0x7fff8c31c060: {<base::Pickle> = {_vptr.Pickle = 0x7ffff3164d60 <vtable for IPC::Message+16>, static kPayloadUnit = 64, header_ = 0x7fff8c5e0ff0, header_size_ = 20, capacity_after_header_ = 128, write_offset_ = 0}, dispatch_error_ = false, attachment_set_ = {ptr_ = 0x0}}
        it = {list_ = {<base::internal::WeakPtrBase> = {ref_ = {flag_ = {ptr_ = 0x3f113a0}}}, ptr_ = 0x5ced838}, index_ = 7, max_index_ = 18446744073709551615}
        observer = <optimized out>
        handled = true
#17 0x00007fffefb73276 in content::RenderFrameHostImpl::OnMessageReceived (this=0x7243830, msg=...) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/content/browser/frame_host/render_frame_host_impl.cc:367
        proxy = <optimized out>
        handled = <optimized out>
#18 0x00007fffefbf2552 in content::RenderProcessHostImpl::OnMessageReceived (this=0x6d0fba0, msg=...) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/content/browser/renderer_host/render_process_host_impl.cc:1569
No locals.
#19 0x00007ffff0765114 in IPC::ChannelProxy::Context::OnDispatchMessage (this=0x6d18650, message=...) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/ipc/ipc_channel_proxy.cc:294
        trace_event_unique_atomic276 = 140737273925804
        trace_event_unique_category_group_enabled276 = <optimized out>
        trace_event_unique_tracer276 = {p_data_ = 0x0, data_ = {category_group_enabled = 0x7ffff071026a <tracked_objects::ThreadData::Now()+250> "\351\064\377\377\377\061\300\353\213\350pq\223\376\017\037\204", name = 0x5db1c90 "È¥\365\363\377\177", event_handle = {chunk_seq = 4294959664, chunk_index = 32767, event_index = 0}}}
#20 0x00007ffff0730948 in base::Callback<void ()>::Run() const (this=0x7fffffffdf58) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/base/callback.h:396
        f = <optimized out>
#21 base::debug::TaskAnnotator::RunTask (this=this@entry=0x5d2aef8, queue_function=queue_function@entry=0x7ffff22aa50b "MessageLoop::PostTask", run_function=run_function@entry=0x7ffff22aa4f6 "MessageLoop::RunTask", pending_task=...) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/base/debug/task_annotator.cc:62
        stopwatch = {start_time_ = {ms_ = 1625113}, wallclock_duration_ms_ = 0, current_thread_data_ = 0x5d15c90, excluded_duration_ms_ = 0, parent_ = 0x0}
        queue_duration = {ms_ = 2}
        trace_event_unique_atomic52 = 140737273925792
        trace_event_unique_category_group_enabled52 = 0x7ffff33810a0 <base::trace_event::(anonymous namespace)::g_category_group_enabled> ""
        trace_event_unique_tracer52 = {p_data_ = 0x0, data_ = {category_group_enabled = 0x407eb00000000000 <error: Cannot access memory at address 0x407eb00000000000>, name = 0x7fffec8895b8 <vtable for QEvent+16> "\320\300D\354\377\177", event_handle = {chunk_seq = 0, chunk_index = 0, event_index = 0}}}
        program_counter = 0x7ffff0765fc8 <IPC::ChannelProxy::Context::OnMessageReceivedNoFilter(IPC::Message const&)+72>
#22 0x00007ffff06ddb74 in base::MessageLoop::RunTask (this=this@entry=0x5d2ad80, pending_task=...) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/base/message_loop/message_loop.cc:473
No locals.
#23 0x00007ffff06de399 in base::MessageLoop::DeferOrRunPendingTask (this=this@entry=0x5d2ad80, pending_task=...) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/base/message_loop/message_loop.cc:482
No locals.
#24 0x00007ffff06de862 in base::MessageLoop::DoWork (this=0x5d2ad80) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/base/message_loop/message_loop.cc:594
        pending_task = {<base::TrackingInfo> = {birth_tally = 0x7fff8c44bb80, time_posted = {ms_ = 1625111}, delayed_run_time = {<base::time_internal::TimeBase<base::TimeTicks>> = {static kHoursPerDay = <optimized out>, static kMillisecondsPerSecond = <optimized out>, static kMillisecondsPerDay = <optimized out>, static kMicrosecondsPerMillisecond = <optimized out>, static kMicrosecondsPerSecond = <optimized out>, static kMicrosecondsPerMinute = <optimized out>, static kMicrosecondsPerHour = <optimized out>, static kMicrosecondsPerDay = <optimized out>, static kMicrosecondsPerWeek = <optimized out>, static kNanosecondsPerMicrosecond = <optimized out>, static kNanosecondsPerSecond = <optimized out>, us_ = 0}, <No data fields>}}, task = {<base::internal::CallbackBase> = {bind_state_ = {ptr_ = 0x7fff8c31c030}, polymorphic_invoke_ = 0x7ffff0764cc0 <base::internal::Invoker<base::IndexSequence<0ul, 1ul>, base::internal::BindState<base::internal::RunnableAdapter<void (IPC::ChannelProxy::Context::*)(IPC::Message const&)>, void (IPC::ChannelProxy::Context*, IPC::Message const&), base::internal::TypeList<IPC::ChannelProxy::Context*, IPC::Message> >, base::internal::TypeList<base::internal::UnwrapTraits<IPC::ChannelProxy::Context*>, base::internal::UnwrapTraits<IPC::Message> >, base::internal::InvokeHelper<false, void, base::internal::RunnableAdapter<void (IPC::ChannelProxy::Context::*)(IPC::Message const&)>, base::internal::TypeList<IPC::ChannelProxy::Context* const&, IPC::Message const&> >, void ()>::Run(base::internal::BindStateBase*)>}, <No data fields>}, posted_from = {function_name_ = 0x7ffff22b05e0 <IPC::ChannelProxy::Context::OnMessageReceivedNoFilter(IPC::Message const&)::__FUNCTION__> "OnMessageReceivedNoFilter", file_name_ = 0x7ffff22b0478 "/tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/3rdparty/chromium/ipc/ipc_channel_proxy.cc", line_number_ = 104, program_counter_ = 0x7ffff0765fc8 <IPC::ChannelProxy::Context::OnMessageReceivedNoFilter(IPC::Message const&)+72>}, sequence_num = 1089, nestable = true, is_high_res = false}
#25 0x00007fffef06c855 in QtWebEngineCore::(anonymous namespace)::MessagePumpForUIQt::handleScheduledWork (this=<optimized out>) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/core/content_browser_client_qt.cpp:183
        more_work_is_plausible = <optimized out>
        delayed_work_time = {<base::time_internal::TimeBase<base::TimeTicks>> = {static kHoursPerDay = <optimized out>, static kMillisecondsPerSecond = <optimized out>, static kMillisecondsPerDay = <optimized out>, static kMicrosecondsPerMillisecond = <optimized out>, static kMicrosecondsPerSecond = <optimized out>, static kMicrosecondsPerMinute = <optimized out>, static kMicrosecondsPerHour = <optimized out>, static kMicrosecondsPerDay = <optimized out>, static kMicrosecondsPerWeek = <optimized out>, static kNanosecondsPerMicrosecond = <optimized out>, static kNanosecondsPerSecond = <optimized out>, us_ = 140737158684040}, <No data fields>}
#26 QtWebEngineCore::(anonymous namespace)::MessagePumpForUIQt::customEvent (this=0x5d2b5f0, ev=<optimized out>) at /tmp/makepkg/qt5-webengine-debug/src/qtwebengine-opensource-src-5.6.1/src/core/content_browser_client_qt.cpp:165
No locals.
#27 0x00007fffec472ce3 in QObject::event (this=0x5d2b5f0, e=<optimized out>) at kernel/qobject.cpp:1278
No locals.
#28 0x00007ffff35fe06c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5d2b5f0, e=0x3f958d0) at kernel/qapplication.cpp:3804
        consumed = <optimized out>
        this = <optimized out>
        e = 0x3f958d0
        receiver = 0x5d2b5f0
#29 0x00007ffff36034ff in QApplication::notify (this=0x7fffffffe650, receiver=0x5d2b5f0, e=0x3f958d0) at kernel/qapplication.cpp:3561
        w = 0x5d2b5f0
        extra = <optimized out>
        isProxyWidget = <optimized out>
        res = false

        
Network requests from wireshark:
---------------------------------------------
GET /member_illust.php?mode=manga&illust_id=xxxxxxxx HTTP/1.1
Host: www.pixiv.net
Connection: keep-alive
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) QtWebEngine/5.6.1 Chrome/45.0.2454.101 Safari/537.36
Referer: http://www.pixiv.net/member_illust.php?mode=medium&illust_id=xxxxxxxx
Accept-Encoding: gzip, deflate
Cookie: <some_cookies>

HTTP/1.1 200 OK
Server: nginx
Date: Thu, 30 Jun 2016 08:00:00 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 3748
Connection: keep-alive
X-Host-Time: 142
Expires: Thu, 19 Nov 1981 08:00:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Vary: Accept-Encoding
Content-Encoding: gzip
X-Frame-Options: SAMEORIGIN
<...content-encoded entity body (gzip): 3748 bytes -> 12083 bytes>
        
(there also requests for js, css and jpegs. also simple GET and 200, without redirects)