Closed Bug 778001 Opened 12 years ago Closed 12 years ago

images not erased in mongout.com

Categories

(Core :: Layout: Images, Video, and HTML Frames, defect)

Product:
Core
Component:
Layout: Images, Video, and HTML Frames
Version:
16 Branch
Platform:
x86_64
Windows 7
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED DUPLICATE of bug 769541
Tracking Flags:
Tracking Status
firefox16 - ---
firefox17 - ---

People

(Reporter: markh, Unassigned)

References

(
URL
)

Details

(Keywords: regression) 

mongout.com is a site that shows images from reddit - vitally important :)  Once it is loaded you can use the left/right arrow buttons or the navigation arrows on the page to move between images.

In Firefox this works perfectly.

In Aurora and Nightly the previous image is not erased - the new image is drawn over the previous one.  If you resize the browser window (or perform any other action that causes a full repaint) it repaints correctly.

Haven't attempted to reproduce this anywhere other than Windows 7.
Mark, any chance of a regression range?

Does this happen on beta?
tracking-firefox16: --- → ?
tracking-firefox17: --- → ?
Keywords: regression
WFM on beta.  mozregression tells me:

Last good nightly: 2012-06-27
First bad nightly: 2012-06-28

Pushlog:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=5cdbeae14405&tochange=bf8f2961d0cc

I'll see if mozregression's attempts to narrow the regression by building works.
I manually used hg bisect to determine the first failing revision is:

changeset:   97816:9a2cc88619ba
user:        Matt Brubeck <mbrubeck@mozilla.com>
date:        Wed Jun 27 16:24:53 2012 -0700
summary:     Back out 438c192e561b and d6f341e77b68 (bug 762652, bug 762654) on suspicion of breaking Windows PGO tests

Which seems very odd, but tried again - 97815 works, 97816 fails.
That's quite odd, since both of those bugs have since relanded....
and fwiw, I can reproduce this both 3 different Win7 x64 machines here.
This started working in nightly, so I tracked it down to the fix for bug 769541 - which has been merged to Aurora, and that too started working in the last day or so - so I'm pretty sure we have a dupe!
Status: NEW → RESOLVED
Closed: 12 years ago
Resolution: --- → DUPLICATE
Product: Core → Core Graveyard
Product: Core Graveyard → Core
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