1125591 - fatal assertion: MOZ_ASSERT(!mAnim, "Animated frames should be locked"), RasterImage.cpp

Status: RESOLVED WORKSFORME

(Core :: Graphics: ImageLib, defect)

Description

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Attachment: gdb session

I crashed with a fatal assertion after clicking the "Give up" button on:
http://www.jetpunk.com/quizzes/second-cities-quiz.php

hitting this assertion:
537         MOZ_ASSERT(!mAnim, "Animated frames should be locked");
in mozilla::image::RasterImage::LookupFrame.

I'm using https://hg.mozilla.org/mozilla-central/rev/c18776175a69 plus local patches.

Comment 1

[Seth Fowler [:seth] [:s2h]]

Hmm.. the information in that gdb session suggests that either we managed to discard an image with a non-zero lock count, or we have unbalanced calls to LockImage and UnlockImage somewhere. The latter seems more likely to me right now.

When I get a chance I'll see if I can reproduce this locally.

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

I've been seeing this a few times a day (although less today, I think).

Comment 3

[Seth Fowler [:seth] [:s2h]]

Does this still happen? I expected bug 1126739 to fix this.

Comment 4

[u279076]

Closing this bug since there's been no further reports of this issue. Please reopen this bug report if you can reproduce this crash in a current version.