This bug was filed from the Socorro interface and is report bp-c74dc387-4660-491d-b338-e4fb40171221. ============================================================= Seen while looking at nightly crash data - http://bit.ly/2Be08mZ. 36 crashes/25 installs on Fennec nightly. Crash also present in 57.0.2 Firefox but in smaller volume. Appears to also be a startup crash. Top 10 frames of crashing thread: 0 libxul.so style::values::specified::image::{{impl}}::parse third_party/rust/cssparser/src/parser.rs:594 1 libxul.so style::values::specified::image::{{impl}}::parse servo/components/style/values/specified/image.rs:139 2 libxul.so style::properties::shorthands::background::parse_value servo/components/style/values/mod.rs:83 3 libxul.so style::properties::{{impl}}::parse_into toolkit/library/armv7-linux-androideabi/release/build/style-f9ff5860987724b0/out/properties.rs:50490 4 libxul.so style::properties::declaration_block::{{impl}}::parse_value servo/components/style/properties/declaration_block.rs:1130 5 libxul.so cssparser::rules_and_declarations::{{impl}}::next<style::properties::declaration_block::Importance, style::properties::declaration_block::PropertyDeclarationParser, style_traits::StyleParseErrorKind> third_party/rust/cssparser/src/rules_and_declarations.rs:254 6 libxul.so style::properties::declaration_block::parse_property_declaration_list<geckoservo::error_reporter::ErrorReporter> servo/components/style/properties/declaration_block.rs:1160 7 libxul.so style::stylesheets::rule_parser::{{impl}}::parse_block<geckoservo::error_reporter::ErrorReporter> servo/components/style/stylesheets/rule_parser.rs:592 8 libxul.so geckoservo::glue::Servo_StyleSheet_FromUTF8Bytes servo/components/style/stylesheets/rule_parser.rs:296 9 libxul.so mozilla::ServoStyleSheet::ParseSheet layout/style/ServoStyleSheet.cpp:214 =============================================================

After the removal of crash reports due to bug 1427111, the new crash reports received are mostly EXCEPTION_ILLEGAL_INSTRUCTION. Maybe rust is generating something unreasonable?

Setting priority P3 because this crash's volume is very low. One Windows crash report says this is an OOM: bp-088d1f79-97cd-4ce1-9811-cd2140180103.

Continues to be pretty low volume across 58 and 59.

This low-frequency startup crash is still lingering around. Would be nice if we could figure out some way to get more diagnostics for it.