StackingContext::hit_test calls unwrap on an option that can be None

[Paxa]

called Result::unwrap() on an Err value: RecvError

URL: https://veritrans.co.id

Servo Version:

Servo 0.0.1-cf2a647

Backtrace:

WARNING: <Constellation>: Finding mozbrowser ancestor for pipeline (1,3) after closure.
WARNING: <Constellation>: Closing pipeline PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(3) } twice.
WARNING: <Constellation>: creating replacement pipeline for about:failure
ERROR: called `Result::unwrap()` on an `Err` value: RecvError

stack backtrace:
   0:        0x10797d35e - backtrace::backtrace::trace::h6ac07ced1b846a59
   1:        0x10797d64c - backtrace::capture::Backtrace::new::h1d3339ed08c7f861
   2:        0x107922645 - constellation::constellation::log_entry::hc92ce9b47dde5c21
   3:        0x107921512 - _<constellation..constellation..FromCompositorLogger as log..Log>::log::h27ef5afa70002f0a
   4:        0x1080a3f41 - log::__log::hf7539da7e3bbacdb
   5:        0x1067d08e0 - servo::main::_{{closure}}::h70a6b1b48115735a
   6:        0x1081024c3 - std::panicking::rust_panic_with_hook::hcd9d05f53fa0dafc
   7:        0x108102394 - std::panicking::begin_panic::hf6c488cee66e7f17
   8:        0x1081022b2 - std::panicking::begin_panic_fmt::hb0a7126ee57cdd27
   9:        0x108102217 - rust_begin_unwind
  10:        0x10812efe0 - core::panicking::panic_fmt::h9af671b78898cdba
  11:        0x106a695d6 - core::result::unwrap_failed::hd2f7e4efbbac6ff3
  12:        0x106aa40ef - _<std..panic..AssertUnwindSafe<F> as core..ops..FnOnce<()>>::call_once::hab2a2e0cf135c615
  13:        0x106a50b14 - std::panicking::try::do_call::h50e0932e3bef3dbe
  14:        0x1081034ea - __rust_maybe_catch_panic
  15:        0x106a79a61 - _<F as alloc..boxed..FnBox<A>>::call_box::h19db0f38744dab6e
  16:        0x1081013f4 - std::sys::thread::Thread::new::thread_start::h50b05608a499d2b2
  17:     0x7fff8bc49aba - _pthread_body
  18:     0x7fff8bc49a06 - _pthread_start

This report was generated by the browser.html issue reporter.

[jdm]

Original panic that triggered this one is:

called `Option::unwrap()` on a `None` value (thread LayoutThread PipelineId { namespace_id: PipelineNamespaceId(0), index: PipelineIndex(0) }, at ../src/libcore/option.rs:325)
stack backtrace:
   0:        0x107a42321 - backtrace::backtrace::trace::h0e60ef08c7c34e9f
   1:        0x107a42990 - backtrace::capture::Backtrace::new::h8bf319c36d8f5d1b
   2:        0x106d789ab - servo::main::_{{closure}}::hf1357f56965dbf00
   3:        0x10ba25b83 - std::panicking::rust_panic_with_hook::hb1322e5f2588b4db
   4:        0x10ba25a54 - std::panicking::begin_panic::hfbeda5aad583dc32
   5:        0x10ba25972 - std::panicking::begin_panic_fmt::h4fe9fb9d5109c4bf
   6:        0x10ba258d7 - rust_begin_unwind
   7:        0x10ba5291d - core::panicking::panic_fmt::h4395919ece15c671
   8:        0x10ba52824 - core::panicking::panic::hc74ff52ed78364e1
   9:        0x10a45f48c - _<core..option..Option<T>>::unwrap::h0c9031c97b397dd0
  10:        0x10a53b524 - gfx::display_list::StackingContext::hit_test::h13698f0489ec2ff4
  11:        0x10a53b898 - gfx::display_list::StackingContext::hit_test::h13698f0489ec2ff4
  12:        0x10a53b898 - gfx::display_list::StackingContext::hit_test::h13698f0489ec2ff4
  13:        0x10a53aa17 - gfx::display_list::DisplayList::hit_test::h7142d05fa0d3815a
  14:        0x107e8e2e3 - layout_thread::LayoutThread::respond_to_query_if_necessary::h37ec70559fb099dc
  15:        0x107e8d817 - layout_thread::LayoutThread::handle_reflow::hf96b35eb1a891d5d
  16:        0x107e98fed - layout_thread::LayoutThread::handle_request_helper::_{{closure}}::h35edd9b7fb572900
  17:        0x107c1f3ca - profile_traits::time::profile::h81d51bcb97d7d4b6
  18:        0x107e88254 - layout_thread::LayoutThread::handle_request_helper::h8df52bfe25c2658f
  19:        0x107e86e5b - layout_thread::LayoutThread::handle_request::h8bbfb53419af02a1
  20:        0x107e85e54 - layout_thread::LayoutThread::start::hfaf3ffa31c851502
  21:        0x107e9774d - _<layout_thread..LayoutThread as layout_traits..LayoutThreadFactory>::create::_{{closure}}::_{{closure}}::hc97c4bbf95ee6f7c
  22:        0x107c1e666 - profile_traits::mem::ProfilerChan::run_with_memory_reporting::h529b9fdb55c01f63
  23:        0x107ea36a0 - _<layout_thread..LayoutThread as layout_traits..LayoutThreadFactory>::create::_{{closure}}::hdc801d82afc99a35
  24:        0x107e5d57a - _<std..panic..AssertUnwindSafe<F> as core..ops..FnOnce<()>>::call_once::h0a7362152ae4adc3
  25:        0x107cb13ec - std::panicking::try::do_call::hcdaf1dbcc5d8ed41
  26:        0x10ba26e8a - __rust_maybe_catch_panic
  27:        0x107cb0ee4 - std::panicking::try::hfe51c077105eb5c9
  28:        0x107caf7af - std::panic::catch_unwind::hf68defb6e1602265
  29:        0x107e9d9e1 - std::thread::Builder::spawn::_{{closure}}::hbcd15adf5d136b10
  30:        0x107d5dd79 - _<F as alloc..boxed..FnBox<A>>::call_box::h5f4d53d897488c97
  31:        0x10ba24aa4 - std::sys::thread::Thread::new::thread_start::h022e3887023c6290
  32:     0x7fff8a827898 - _pthread_body
  33:     0x7fff8a827729 - _pthread_start

[jdm]

This is probably https://dxr.mozilla.org/servo/rev/5a14d09baba6a56af5daa44b80c90d777181c9cc/components/gfx/display_list/mod.rs#723 which means this is the same problem as #13266.

[nox]

#13266 is fixed and original website doesn't exist anymore. Closing.