770473 - Occasional black horizontal lines on different pages

Status: RESOLVED WORKSFORME

(Firefox for Android Graveyard :: Toolbar, defect)

Description

[Jeff Muizelaar [:jrmuizel]]

I see these when scrolling an article. They scroll with content but go away when we repaint (zoom in & out)

Comment 1

[Matt Brubeck (:mbrubeck)]

Maybe a regression from bug dlbi, like bug 770526?

Comment 2

[Jeff Muizelaar [:jrmuizel]]

(In reply to Matt Brubeck (:mbrubeck) from comment #1)
> Maybe a regression from bug dlbi, like bug 770526?

I think my build was from before then.

Comment 3

[Adrian Tamas (:AdrianT)]

I am unable to reproduce the issue in several attempts on Nightly 16.0a1 2012-07-03 or Aurora 15.0a2 2012-07-03 on HTC Desire (Android 2.2.2) or Motorola Droid Pro (Android 2.3.4).

Can you please try to see if you can reproduce the issue on the latest Nightly or give more information about device, os, build and version of the wikipedia page (desktop or mobile), possibly add a screencapture to have an idea what we should be looking for?

Comment 4

[Paul Feher]

I can reproduce this on:
Firefox Beta 14.0b12 2012-07-10
Nightly Fennec 16.0a1 (2012-07-10)
Aurora Fennec 15.0a2 (2012-07-10)
Using:
HTC Desire Z (2.3.3)

Steps to reproduce:

1. Login on mail.yahoo.com
2. Load another site in the same tab without signing out.
3. Load yahoo.com

NOTE:Please see the attached screenshot.

Comment 5

[Paul Feher]

Attachment: Screenshot

Comment 6

[Paul Feher]

The regression window for this issue is:

good build:
2012/05/16

bad build 
2012/05/17

possible push-log:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=c00a9c1940c5&tochange=762e95608da3

Comment 7

[Jeff Muizelaar [:jrmuizel]]

That window has a lot of changes in it. It would be good to get a tighter window.

Comment 8

[Paul Feher]

The build prior July 11th have been deleted i am unable to verify this on inbound.
Please provide a link for the older build if there is one.

Comment 9

[Aaron Train [:aaronmt]]

(In reply to Paul Feher from comment #8)
> The build prior July 11th have been deleted i am unable to verify this on
> inbound.
> Please provide a link for the older build if there is one.

I see builds here prior to the 11th

https://ftp.mozilla.org/pub/mozilla.org/mobile/nightly/2012/07/

Comment 10

[Paul Feher]

I was able to determine the regression window but for a narrower interval i need the tinderbox-builds for that period. If there is a way to access older tinderbox-builds please let me know.

Comment 11

[Aaron Train [:aaronmt]]

(In reply to Paul Feher from comment #10)
> I was able to determine the regression window but for a narrower interval i
> need the tinderbox-builds for that period. If there is a way to access older
> tinderbox-builds please let me know.

Tinderbox-builds from months past are not archived.

Comment 12

[Paul Feher]

Removing regressionwindow-wanted due to comment11

Comment 13

[Kevin Brosnan [Ex-Mozilla]]

It is still possible to find a regression range by using hg bisect

Comment 14

[Naoki Hirata :nhirata (please use needinfo instead of cc)]

http://hg.mozilla.org/mozilla-central/pushloghtml?changeset=bfc259be3fa2  92 changesets...

Comment 15

[Martijn Wargers (dead)]

Regression from bug 755452?

Comment 16

[Paul Feher]

The issue is pretty easy to be reproduce using reader mode for descopera.ro page articles.

Firefox Nightly 18.0a1 (2012-09-18)
Device: Samsung Galaxy R
OS: Android 2.3.4

Comment 17

[Mark Finkle (:mfinkle) (use needinfo?)]

Can someone hg bisect on mozilla-inbound using comment 14 as a start?

Comment 18

[Martijn Wargers (dead)]

(In reply to Paul Feher from comment #16)
> The issue is pretty easy to be reproduce using reader mode for descopera.ro
> page articles.

I'm not getting the Reader Mode option available on that page. Any particular page where you are seeing this?

Comment 19

[Paul Feher]

(In reply to Martijn Wargers [:mw22] (QA - IRC nick: mw22) from comment #18)
> (In reply to Paul Feher from comment #16)
> > The issue is pretty easy to be reproduce using reader mode for descopera.ro
> > page articles.
> 
> I'm not getting the Reader Mode option available on that page. Any
> particular page where you are seeing this?

I was able to reproduce this issue by loading any article on the page using reader mode but for latest Nightly (2012-10-01) is not reproducible anymore it remains reproducible using the STR from comment4.

Comment 20

[Aaron Train [:aaronmt]]

Paul, can you try Mark's suggestion in comment #17 since you can easily reproduce? We're looking for an exact changeset here.

Comment 21

[Kevin Brosnan [Ex-Mozilla]]

Removing regressionwindow-wanted for now. Please try to reproduce this.

Comment 22

[Paul Feher]

Closing this as wfm since I can't reproduce this on latest Nightly and Aurora.