% lldb -- rstudio --single-process
(lldb) target create "rstudio"
Current executable set to '/usr/bin/rstudio' (x86_64).
(lldb) settings set -- target.run-args  "--single-process"
(lldb) run
Process 16128 launched: '/usr/bin/rstudio' (x86_64)
TTY detected. Printing informational message about logging configuration. Logging configuration loaded from '/etc/xdg/rstudio/logging.conf'. Logging to '/home/mwright/.local/share/rstudio/log/rdesktop.log'.
Process 16128 stopped and restarted: thread 1 received signal: SIGCHLD
Process 16128 stopped and restarted: thread 1 received signal: SIGCHLD
Process 16128 stopped and restarted: thread 1 received signal: SIGCHLD
Process 16128 stopped and restarted: thread 1 received signal: SIGCHLD
Process 16128 stopped and restarted: thread 1 received signal: SIGCHLD
Process 16128 stopped and restarted: thread 1 received signal: SIGCHLD
Process 16128 stopped
* thread #44, name = 'Chrome_InProcRe', stop reason = signal SIGTRAP
    frame #0: 0x00007ffff55927a6 libQt5WebEngineCore.so.5`blink::CSSAnimations::CalculateAnimationUpdate(blink::CSSAnimationUpdate&, blink::Element const*, blink::Element&, blink::ComputedStyle const&, blink::ComputedStyle const*, blink::StyleResolver*) [inlined] WTF::Vector<blink::Member<blink::CSSAnimations::RunningAnimation>, 0u, blink::HeapAllocator>::at(this=<unavailable>) const::'lambda'()::operator()() const at vector.h:1178:5
(lldb) bt
error: libQt5WebEngineCore.so.5 GetDIE for DIE 0x44 is outside of its CU 0x220a4078
* thread #44, name = 'Chrome_InProcRe', stop reason = signal SIGTRAP
  * frame #0: 0x00007ffff55927a6 libQt5WebEngineCore.so.5`blink::CSSAnimations::CalculateAnimationUpdate(blink::CSSAnimationUpdate&, blink::Element const*, blink::Element&, blink::ComputedStyle const&, blink::ComputedStyle const*, blink::StyleResolver*) [inlined] WTF::Vector<blink::Member<blink::CSSAnimations::RunningAnimation>, 0u, blink::HeapAllocator>::at(this=<unavailable>) const::'lambda'()::operator()() const at vector.h:1178:5
    frame #1: 0x00007ffff55927a5 libQt5WebEngineCore.so.5`blink::CSSAnimations::CalculateAnimationUpdate(blink::CSSAnimationUpdate&, blink::Element const*, blink::Element&, blink::ComputedStyle const&, blink::ComputedStyle const*, blink::StyleResolver*) [inlined] WTF::Vector<blink::Member<blink::CSSAnimations::RunningAnimation>, 0u, blink::HeapAllocator>::at(this=<unavailable>, i=2) const at vector.h:1178:5
    frame #2: 0x00007ffff55927a5 libQt5WebEngineCore.so.5`blink::CSSAnimations::CalculateAnimationUpdate(blink::CSSAnimationUpdate&, blink::Element const*, blink::Element&, blink::ComputedStyle const&, blink::ComputedStyle const*, blink::StyleResolver*) [inlined] WTF::Vector<blink::Member<blink::CSSAnimations::RunningAnimation>, 0u, blink::HeapAllocator>::operator[](this=<unavailable>, i=2) const at vector.h:1183:52
    frame #3: 0x00007ffff55927a5 libQt5WebEngineCore.so.5`blink::CSSAnimations::CalculateAnimationUpdate(update=0x00007fff38ff6ae8, animating_element=0x00002b9a07ebd428, element=0x00002b9a07ebd428, style=0x00001dbf5c2adf90, parent_style=0x00001dbf5cb40650, resolver=0x0000374c5e404e10) at css_animations.cc:767:15
    frame #4: 0x00007ffff55b154b libQt5WebEngineCore.so.5`blink::StyleResolver::ApplyAnimatedStyle(blink::StyleResolverState&, blink::StyleCascade&) [inlined] blink::StyleResolver::CalculateAnimationUpdate(this=0x0000374c5e404e10, state=0x00007fff38ff6a68) at style_resolver.cc:1567:3
    frame #5: 0x00007ffff55b1527 libQt5WebEngineCore.so.5`blink::StyleResolver::ApplyAnimatedStyle(this=0x0000374c5e404e10, state=0x00007fff38ff6a68, cascade=0x00007fff38ff2c68) at style_resolver.cc:1368:3
    frame #6: 0x00007ffff55b0c8f libQt5WebEngineCore.so.5`blink::StyleResolver::StyleForElement(this=0x0000374c5e404e10, element=0x00002b9a07ebd428, default_parent=<unavailable>, default_layout_parent=<unavailable>, matching_behavior=kMatchAllRules) at style_resolver.cc:850:7
    frame #7: 0x00007ffff516318e libQt5WebEngineCore.so.5`blink::Element::StyleForLayoutObject() [inlined] blink::Element::OriginalStyleForLayoutObject(this=0x00002b9a07ebd428) at element.cc:2856:43
    frame #8: 0x00007ffff516316a libQt5WebEngineCore.so.5`blink::Element::StyleForLayoutObject(this=0x00002b9a07ebd428) at element.cc:2836:46
    frame #9: 0x00007ffff51638cf libQt5WebEngineCore.so.5`blink::Element::RecalcOwnStyle(this=0x00002b9a07ebd428, change=<unavailable>) at element.cc:3034:19
    frame #10: 0x00007ffff51633bc libQt5WebEngineCore.so.5`blink::Element::RecalcStyle(this=0x00002b9a07ebd428, change=(propagate_ = kNo, reattach_ = false)) at element.cc:2877:20
    frame #11: 0x00007ffff5187f66 libQt5WebEngineCore.so.5`blink::ContainerNode::RecalcDescendantStyles(this=<unavailable>, change=(propagate_ = kNo, reattach_ = false)) at container_node.cc:1361:22
    frame #12: 0x00007ffff51635a5 libQt5WebEngineCore.so.5`blink::Element::RecalcStyle(this=0x00002b9a07ebd3b8, change=(propagate_ = kNo, reattach_ = false)) at element.cc:0
    frame #13: 0x00007ffff5300d23 libQt5WebEngineCore.so.5`blink::StyleEngine::RecalcStyle(this=0x0000350f80cf47a0) at style_engine.cc:1984:17
    frame #14: 0x00007ffff5301156 libQt5WebEngineCore.so.5`blink::StyleEngine::UpdateStyleAndLayoutTree(this=0x0000350f80cf47a0) at style_engine.cc:2057:7
    frame #15: 0x00007ffff52663aa libQt5WebEngineCore.so.5`blink::Document::UpdateStyle(this=0x00002b9a07d82728) at document.cc:2476:20
    frame #16: 0x00007ffff5262b39 libQt5WebEngineCore.so.5`blink::Document::UpdateStyleAndLayoutTree(this=0x00002b9a07d82728) at document.cc:2429:3
    frame #17: 0x00007ffff5266d79 libQt5WebEngineCore.so.5`blink::Document::UpdateStyleAndLayout(this=0x00002b9a07d82728, reason=kJavaScript) at document.cc:2750:3
    frame #18: 0x00007ffff52676e0 libQt5WebEngineCore.so.5`blink::Document::EnsurePaintLocationDataValidForNode(this=0x00002b9a07d82728, node=0x00002b9a07e4e1a8, reason=kJavaScript) at document.cc:2866:3
    frame #19: 0x00007ffff5989c52 libQt5WebEngineCore.so.5`blink::HTMLElement::offsetHeightForBinding(this=0x00002b9a07e4e1a8) at html_element.cc:1505:17
    frame #20: 0x00007ffff61f4617 libQt5WebEngineCore.so.5`blink::V8HTMLElementCallbacks::OffsetHeightAttributeGetCallback(info=0x00007fff38ff7120) at v8_html_element.cc:592:39
    frame #21: 0x00007ffff36370ae libQt5WebEngineCore.so.5`Builtins_CallApiCallback + 174
    frame #22: 0x00007ffff363e361 libQt5WebEngineCore.so.5`Builtins_LoadIC_NoFeedback + 2849
    frame #23: 0x00007ffff372afca libQt5WebEngineCore.so.5`Builtins_LdaNamedPropertyHandler + 4298
    frame #24: 0x00007ffff3636218 libQt5WebEngineCore.so.5`Builtins_InterpreterEntryTrampoline + 216
    frame #25: 0x00007ffff3636218 libQt5WebEngineCore.so.5`Builtins_InterpreterEntryTrampoline + 216
    frame #26: 0x00007ffff3636218 libQt5WebEngineCore.so.5`Builtins_InterpreterEntryTrampoline + 216
    frame #27: 0x00007ffff3636218 libQt5WebEngineCore.so.5`Builtins_InterpreterEntryTrampoline + 216
    frame #28: 0x00007ffff3636218 libQt5WebEngineCore.so.5`Builtins_InterpreterEntryTrampoline + 216
    frame #29: 0x00007ffff3636218 libQt5WebEngineCore.so.5`Builtins_InterpreterEntryTrampoline + 216
    frame #30: 0x00007ffff3636218 libQt5WebEngineCore.so.5`Builtins_InterpreterEntryTrampoline + 216
    frame #31: 0x00007ffff3636218 libQt5WebEngineCore.so.5`Builtins_InterpreterEntryTrampoline + 216
    frame #32: 0x00007ffff3636218 libQt5WebEngineCore.so.5`Builtins_InterpreterEntryTrampoline + 216
    frame #33: 0x00007ffff362e678 libQt5WebEngineCore.so.5`Builtins_ArgumentsAdaptorTrampoline + 184
    frame #34: 0x00007ffff3636218 libQt5WebEngineCore.so.5`Builtins_InterpreterEntryTrampoline + 216
    frame #35: 0x00007ffff3633d3b libQt5WebEngineCore.so.5`Builtins_JSEntryTrampoline + 91
    frame #36: 0x00007ffff3633b18 libQt5WebEngineCore.so.5`Builtins_JSEntry + 120
    frame #37: 0x00007ffff2e5aeab libQt5WebEngineCore.so.5`v8::internal::(anonymous namespace)::Invoke(v8::internal::Isolate*, v8::internal::(anonymous namespace)::InvokeParams const&) [inlined] v8::internal::GeneratedCode<unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, long, unsigned long**>::Call(this=<unavailable>, args=63969242906624, args=<unavailable>, args=63969424980749, args=<unavailable>, args=<unavailable>, args=<unavailable>) at simulator.h:142:12
    frame #38: 0x00007ffff2e5aea3 libQt5WebEngineCore.so.5`v8::internal::(anonymous namespace)::Invoke(isolate=0x00003a2e00000000, params=0x00007fff38ff78b8)::InvokeParams const&) at execution.cc:368:33
    frame #39: 0x00007ffff2e5a2e3 libQt5WebEngineCore.so.5`v8::internal::Execution::Call(isolate=0x00003a2e00000000, callable=<unavailable>, receiver=<unavailable>, argc=0, argv=0x00007fff21905cb0) at execution.cc:462:10
    frame #40: 0x00007ffff2c6bb61 libQt5WebEngineCore.so.5`v8::Function::Call(this=0x00007fff200aad08, context=<unavailable>, recv=(val_ = 0x00007fff200aad28), argc=0, argv=0x00007fff21905cb0) at api.cc:4990:7
    frame #41: 0x00007ffff5253a8a libQt5WebEngineCore.so.5`blink::V8ScriptRunner::CallFunction(function=(val_ = 0x00007fff200aad08), context=0x0000350f80ce6678, receiver=(val_ = 0x00007fff200aad28), argc=0, args=0x00007fff21905cb0, isolate=0x00003a2e00000000) at v8_script_runner.cc:629:17
    frame #42: 0x00007ffff5451530 libQt5WebEngineCore.so.5`blink::V8Function::Invoke(this=0x00000d6c8762bf10, callback_this_value=V8ValueOrScriptWrappableAdapter @ 0x00007fff38ff7b90, arguments=0x00000d6c8762bf50) at v8_function.cc:108:8
    frame #43: 0x00007ffff545171f libQt5WebEngineCore.so.5`blink::V8Function::InvokeAndReportException(this=0x00000d6c8762bf10, callback_this_value=V8ValueOrScriptWrappableAdapter @ 0x000055b65821f970, arguments=0x00000d6c8762bf50) at v8_function.cc:253:7
    frame #44: 0x00007ffff5406e92 libQt5WebEngineCore.so.5`blink::ScheduledAction::Execute(this=<unavailable>, context=0x0000350f80cf3b58) at scheduled_action.cc:130:16
    frame #45: 0x00007ffff57fbf3c libQt5WebEngineCore.so.5`blink::DOMTimer::Fired(this=0x0000055c4576a3a8) at dom_timer.cc:209:11
    frame #46: 0x00007ffff509bb57 libQt5WebEngineCore.so.5`blink::TimerBase::RunInternal(this=0x0000055c4576a3c0) at timer.cc:152:3
    frame #47: 0x00007ffff3f0c76d libQt5WebEngineCore.so.5`base::TaskAnnotator::RunTask(char const*, base::PendingTask*) [inlined] base::OnceCallback<void ()>::Run(this=0x00007fff2004ff10) && at callback.h:100:12
    frame #48: 0x00007ffff3f0c75c libQt5WebEngineCore.so.5`base::TaskAnnotator::RunTask(this=<unavailable>, trace_event_name="SequenceManager RunTask", pending_task=0x00007fff2004ff10) at task_annotator.cc:163:33
    frame #49: 0x00007ffff3f1b0cf libQt5WebEngineCore.so.5`base::sequence_manager::internal::ThreadControllerImpl::DoWork(this=0x00007fff20002020, work_type=<unavailable>) at thread_controller_impl.cc:184:23
    frame #50: 0x00007ffff3f0c76d libQt5WebEngineCore.so.5`base::TaskAnnotator::RunTask(char const*, base::PendingTask*) [inlined] base::OnceCallback<void ()>::Run(this=0x00007fff2004ef40) && at callback.h:100:12
    frame #51: 0x00007ffff3f0c75c libQt5WebEngineCore.so.5`base::TaskAnnotator::RunTask(this=<unavailable>, trace_event_name="SequenceManager RunTask", pending_task=0x00007fff2004ef40) at task_annotator.cc:163:33
    frame #52: 0x00007ffff3f1cb03 libQt5WebEngineCore.so.5`base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWorkImpl(this=0x000055555603f450, continuation_lazy_now=0x00007fff38ff83a8) at thread_controller_with_message_pump_impl.cc:332:23
    frame #53: 0x00007ffff3f1c896 libQt5WebEngineCore.so.5`base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWork(this=0x000055555603f450) at thread_controller_with_message_pump_impl.cc:252:36
    frame #54: 0x00007ffff3ed32dc libQt5WebEngineCore.so.5`base::MessagePumpDefault::Run(this=0x00007fff20001bf0, delegate=0x000055555603f458) at message_pump_default.cc:39:55
    frame #55: 0x00007ffff3f1d05a libQt5WebEngineCore.so.5`non-virtual thunk to base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) [inlined] base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(this=<unavailable>, application_tasks_allowed=<unavailable>, timeout=<unavailable>) at thread_controller_with_message_pump_impl.cc:446:12
    frame #56: 0x00007ffff3f1cfdb libQt5WebEngineCore.so.5`non-virtual thunk to base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) at thread_controller_with_message_pump_impl.cc:0
    frame #57: 0x00007ffff3ef195f libQt5WebEngineCore.so.5`base::RunLoop::Run(this=0x00007fff38ff8500) at run_loop.cc:124:14
    frame #58: 0x00007ffff3f3983e libQt5WebEngineCore.so.5`base::Thread::ThreadMain(this=0x0000555555f9cd80) at thread.cc:382:3
    frame #59: 0x00007ffff3f5765b libQt5WebEngineCore.so.5`base::(anonymous namespace)::ThreadFunc(params=0x00005555561c1060) at platform_thread_posix.cc:87:13
    frame #60: 0x00007fffef14b593 libc.so.6`___lldb_unnamed_symbol3510 + 707
    frame #61: 0x00007fffef1c5c3c libc.so.6`___lldb_unnamed_symbol3876 + 11
(lldb)