1432138 - Stylo: Crash in style::stylist::ElementAndPseudoRules::clear

Status: RESOLVED DUPLICATE of bug 1417057

(Core :: CSS Parsing and Computation, defect)

Description

[Calixte Denizet (:calixte)]

This bug was filed from the Socorro interface and is
report bp-efbbf0f6-6b12-4596-8698-411330180120.
=============================================================

Top 10 frames of crashing thread:

0 xul.dll style::stylist::ElementAndPseudoRules::clear servo/components/style/stylist.rs:1898
1 xul.dll style::stylist::CascadeData::clear_cascade_data servo/components/style/stylist.rs:2355
2 xul.dll geckoservo::glue::Servo_StyleSet_FlushStyleSheets servo/ports/geckolib/glue.rs:1225
3 xul.dll mozilla::ServoStyleSet::UpdateStylist layout/style/ServoStyleSet.cpp:1400
4 xul.dll mozilla::ServoStyleSet::BuildFontFeatureValueSet layout/style/ServoStyleSet.cpp:1373
5 xul.dll mozilla::StyleSetHandle::Ptr::BuildFontFeatureValueSet layout/style/StyleSetHandleInlines.h:363
6 xul.dll nsPresContext::FlushFontFeatureValues layout/base/nsPresContext.cpp:3150
7 xul.dll mozilla::detail::RunnableMethodImpl<mozilla::PresShell*, void  xpcom/threads/nsThreadUtils.h:1193
8 xul.dll mozilla::SchedulerGroup::Runnable::Run xpcom/threads/SchedulerGroup.cpp:395
9 xul.dll nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1040

=============================================================

There are 3 crashes in nightly 59 with buildid 20180119220144. In analyzing the backtrace, the regression may have been introduced by patch [1].

[1] https://hg.mozilla.org/mozilla-central/rev/1b62dd209727

Comment 1

[Emilio Cobos Álvarez [:emilio]]

This looks a lot like the crashes bug 1417057. My changeset just changed the signature.

Comment 2

[Liz Henry (:lizzard) (relman/hg->git project)]

Tracking this in the duplicate bug.