1160894 - Assertion failure: !HasListeners() (when listeners present, must keep mMatches current)

Status: RESOLVED DUPLICATE of bug 1264891

(Core :: CSS Parsing and Computation, defect)

Description

[Bob Clary [:bc] (inactive)]

Attachment: Crash report

1. http://www.gap.com/browse/category.do?cid=83056&departmentRedirect=true#department=75

2. Assertion failure: !HasListeners() (when listeners present, must keep mMatches current), at c:\mozilla\builds\nightly\mozilla\layout\style\MediaQueryList.cpp:76

Comment 1

[Bob Clary [:bc] (inactive)]

I was unable to reproduce this even though it was recent and even going back to see when it might have been fixed. huh. anyway=> WFM. I'll reopen if I see it again.

Comment 2

[Bob Clary [:bc] (inactive)]

1. http://www.gapcanada.ca/
2. Assertion failure: !HasListeners() (when listeners present, must keep mMatches current), at c:/builds/moz2_slave/m-cen-w64-d-000000000000000000/build/src/layout/style/MediaQueryList.cpp:76

Beta/44, Aurora/45, Nightly/46 on Linux, OS X, Windows.

Comment 3

[Bob Clary [:bc] (inactive)]

Attachment: minidump crash report

Comment 4

[Carsten Book [:Tomcat]]

Attachment: stack from todays tip on m-c trunk (windows 7 debug build)

Comment 5

[Carsten Book [:Tomcat]]

cameron, is this something for you ? Or do you know who could take a look at this assertion, thanks!

Comment 6

[Cameron McCormack (:heycam)]

I can't seem to reproduce this locally (m-c tip on Linux).  David implemented window.matchMedia so maybe he has an idea.

Comment 7

[Bob Clary [:bc] (inactive)]

manually reproducible with https://www.uvic.ca/cas/logout?url=http://coursespaces.uvic.ca/grade/report/user/index.php%3Fid=9852 on Linux x86_64 Beta/45, Aurora/46, Nightly/47 at least. This occurs on Windows and Linux though from automation it doesn't appear to be 100% reliable. I have other urls where automation is more reliable but they are slightly NSFW so lets see how this url does. This is reproducible with a saved version for the moment anyway.

Comment 8

[Bob Clary [:bc] (inactive)]

duping forward to bug 1264891