770381 - Crash when changing opacity of multiple nested elements

Status: RESOLVED FIXED

(Core :: Layout, defect)

Description

[Jesse Ruderman]

Attachment: testcase (crashes Firefox when loaded)

1. Set
  user_pref("layers.acceleration.disabled", true);
2. Load the testcase

Result: Crash!

Comment 1

[Jesse Ruderman]

Attachment: stack trace

Nightly: bp-682a29d6-cfc8-45d8-bca2-616902120703

Comment 2

[Jesse Ruderman]

I would not be surprised if this were a regression from bug 539356.

Comment 3

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

Is this a recent regression?

Comment 4

[Martijn Wargers (dead)]

Doesn't crash here.

Comment 5

[Jesse Ruderman]

Probably because bug 539356 was backed out.

Comment 6

[Jonathan Watt [:jwatt]]

Can you check this is, Jesse?

Comment 7

[Jonathan Watt [:jwatt]]

Reason being that Matt wants tests for as many of the regressions from the DLBI bug in the tree as possible, so that Try will pick up failures before he pushes to m-i.

Comment 8

[Jesse Ruderman]

I could add it as a crashtest, but that might not cause it to run with layers.acceleration.disabled.

Comment 9

[Robert O'Callahan (:roc) (email my personal email if necessary)]

Some of our tinderbox test machines have layers acceleration disabled, so that's OK.

Comment 10

[Jesse Ruderman]

https://hg.mozilla.org/integration/mozilla-inbound/rev/be7d963dcc80

Comment 11

[Ed Morley [:emorley]]

https://hg.mozilla.org/mozilla-central/rev/be7d963dcc80