Hit MOZ_CRASH(called Option::unwrap() on a None value) at gfx/wr/webrender/src/clip.rs:569

39|0|libxul.so|RustMozCrash|hg:hg.mozilla.org/mozilla-central:mozglue/static/rust/wrappers.cpp:8fcf1cac56600d932240486ffe7a06d46a0c931c|17|0x15
39|1|libxul.so|mozglue_static::panic_hook|hg:hg.mozilla.org/mozilla-central:mozglue/static/rust/lib.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|89|0x9
39|2|libxul.so|core::ops::function::Fn::call|git:github.com/rust-lang/rust:src/libcore/ops/function.rs:4fb7144ed159f94491249e86d5bbd033b5d60550|72|0xc
39|3|libxul.so|std::panicking::rust_panic_with_hook|git:github.com/rust-lang/rust:src/libstd/panicking.rs:4fb7144ed159f94491249e86d5bbd033b5d60550|474|0x7
39|4|libxul.so|rust_begin_unwind|git:github.com/rust-lang/rust:src/libstd/panicking.rs:4fb7144ed159f94491249e86d5bbd033b5d60550|378|0x2f
39|5|libxul.so|core::panicking::panic_fmt|git:github.com/rust-lang/rust:src/libcore/panicking.rs:4fb7144ed159f94491249e86d5bbd033b5d60550|85|0x6
39|6|libxul.so|core::panicking::panic|git:github.com/rust-lang/rust:src/libcore/panicking.rs:4fb7144ed159f94491249e86d5bbd033b5d60550|52|0x49
39|7|libxul.so|webrender::clip::ClipStore::build_clip_chain_instance|git:github.com/rust-lang/rust:src/libcore/macros/mod.rs:4fb7144ed159f94491249e86d5bbd033b5d60550|10|0x19
39|8|libxul.so|webrender::visibility::update_primitive_visibility|hg:hg.mozilla.org/mozilla-central:gfx/wr/webrender/src/visibility.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|403|0x57
39|9|libxul.so|webrender::visibility::update_primitive_visibility|hg:hg.mozilla.org/mozilla-central:gfx/wr/webrender/src/visibility.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|299|0x2a
39|10|libxul.so|webrender::visibility::update_primitive_visibility|hg:hg.mozilla.org/mozilla-central:gfx/wr/webrender/src/visibility.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|299|0x2a
39|11|libxul.so|webrender::visibility::update_primitive_visibility|hg:hg.mozilla.org/mozilla-central:gfx/wr/webrender/src/visibility.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|299|0x2a
39|12|libxul.so|webrender::visibility::update_primitive_visibility|hg:hg.mozilla.org/mozilla-central:gfx/wr/webrender/src/visibility.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|299|0x2a
39|13|libxul.so|webrender::frame_builder::FrameBuilder::build|hg:hg.mozilla.org/mozilla-central:gfx/wr/webrender/src/frame_builder.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|387|0x29
39|14|libxul.so|webrender::render_backend::Document::build_frame|hg:hg.mozilla.org/mozilla-central:gfx/wr/webrender/src/render_backend.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|643|0x22
39|15|libxul.so|webrender::render_backend::RenderBackend::update_document|hg:hg.mozilla.org/mozilla-central:gfx/wr/webrender/src/render_backend.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|1552|0x1e
39|16|libxul.so|webrender::render_backend::RenderBackend::process_api_msg|hg:hg.mozilla.org/mozilla-central:gfx/wr/webrender/src/render_backend.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|1332|0x199
39|17|libnspr4.so|PR_GetCurrentThread|hg:hg.mozilla.org/mozilla-central:nsprpub/pr/src/pthreads/ptthread.c:8fcf1cac56600d932240486ffe7a06d46a0c931c|640|0xb
39|18|libnspr4.so|PR_GetThreadPrivate|hg:hg.mozilla.org/mozilla-central:nsprpub/pr/src/threads/prtpd.c:8fcf1cac56600d932240486ffe7a06d46a0c931c|205|0x5
39|19|libxul.so|_fini|||0x10ea7
39|20|libxul.so|AssertActivityIsLegal()|hg:hg.mozilla.org/mozilla-central:xpcom/base/nsTraceRefcnt.cpp:8fcf1cac56600d932240486ffe7a06d46a0c931c|198|0x10
39|21|libxul.so|mozilla::BlockingResourceBase::Release()|hg:hg.mozilla.org/mozilla-central:xpcom/threads/BlockingResourceBase.cpp:8fcf1cac56600d932240486ffe7a06d46a0c931c|284|0xc
39|22|libxul.so|NS_LogDtor|hg:hg.mozilla.org/mozilla-central:xpcom/base/nsTraceRefcnt.cpp:8fcf1cac56600d932240486ffe7a06d46a0c931c|1054|0x5
39|23|firefox-bin|mozilla::detail::MutexImpl::unlock()|hg:hg.mozilla.org/mozilla-central:mozglue/misc/Mutex_posix.cpp:8fcf1cac56600d932240486ffe7a06d46a0c931c|178|0x5
39|24|libxul.so|mozilla::layers::APZCTreeManager::SampleForWebRender(mozilla::wr::TransactionWrapper&, mozilla::TimeStamp const&, nsTArray<mozilla::wr::WrPipelineIdAndEpoch> const*)|hg:hg.mozilla.org/mozilla-central:gfx/layers/apz/src/APZCTreeManager.cpp:8fcf1cac56600d932240486ffe7a06d46a0c931c|893|0x60
39|25|libxul.so|webrender::resource_cache::ResourceCache::add_image_template|hg:hg.mozilla.org/mozilla-central:gfx/wr/webrender/src/resource_cache.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|709|0x245
39|26|libxul.so|DumpHeap(JSContext*, unsigned int, JS::Value*)|hg:hg.mozilla.org/mozilla-central:js/src/builtin/TestingFunctions.cpp:8fcf1cac56600d932240486ffe7a06d46a0c931c|2736|0x12
39|27|libxul.so|webrender::resource_cache::ResourceCache::post_scene_building_update|hg:hg.mozilla.org/mozilla-central:gfx/wr/webrender/src/resource_cache.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|619|0x58
39|28|libxul.so|mozilla::layers::APZSampler::Release()|hg:hg.mozilla.org/mozilla-central:gfx/layers/apz/public/APZSampler.h:8fcf1cac56600d932240486ffe7a06d46a0c931c|41|0x12
39|29|libxul.so|core::ptr::drop_in_place|git:github.com/rust-lang/rust:src/libcore/ptr/mod.rs:4fb7144ed159f94491249e86d5bbd033b5d60550|177|0x31e
39|30|libxul.so|hashbrown::raw::RawTable<T>::reserve_rehash|/cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.6.2/src/raw/mod.rs|932|0xf
39|31|libxul.so|_fini|||0x1e03e6d
39|32|libxul.so|webrender::scene::SceneProperties::flush_pending_updates|git:github.com/rust-lang/rust:src/libcore/iter/adapters/zip.rs:4fb7144ed159f94491249e86d5bbd033b5d60550|176|0xf
39|33|libxul.so|_fini|||0x1e03e6c
39|34|libxul.so|webrender::render_backend::RenderBackend::update_document|hg:hg.mozilla.org/mozilla-central:gfx/wr/webrender/src/render_backend.rs:8fcf1cac56600d932240486ffe7a06d46a0c931c|1658|0x14

A Pernosco session is available here: https://pernos.co/debug/9tHfaJXm4z6ASyHXFxil9w/index.html

bp-1518e78e-e899-44a2-971f-1fe590200625

Gnome Xwayland, Debian Testing, Macbook Pro
good: empty tab
bad: crash, firefox closes
mozregression --good 2020-03-15 --bad 2020-06-24 --pref gfx.webrender.all:true layers.gpu-process.enabled:false layout.css.backdrop-filter.enabled:true -a https://bugzilla.mozilla.org/attachment.cgi?id=9159130

9:00.82 INFO: Last good revision: eb5dd046d5c8a818855d4b0f0a0e6ad454239b2c
9:00.82 INFO: First bad revision: aff8eef07d078b20be9c4b7d6dfb689998fb11fa
9:00.82 INFO: Pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=eb5dd046d5c8a818855d4b0f0a0e6ad454239b2c&tochange=aff8eef07d078b20be9c4b7d6dfb689998fb11fa

aff8eef07d078b20be9c4b7d6dfb689998fb11fa Nicolas Silva — Bug 1587713 - Remove the late blob rasterization code. r=jrmuizel
100387beceed5894fa594a07845a149cbddfb1b8 Nicolas Silva — Bug 1630212 - Remove non-tiled blob images. r=jrmuizel

I assume it's bug 1630212?

It's unclear why the primitive's rect does not intersect the clip but I guess the most reasonable thing to do here is to default to the visible rect. it will cause the next few lines to generate zero repretitions and the primitive will be entirely clipped out.

https://hg.mozilla.org/mozilla-central/rev/5655e4fec81d