438930 - View source graphical gunk on asciimation.co.nz

Status: RESOLVED WORKSFORME

(Core :: Layout, defect)

Description

[Tom Oldbury]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.9) Gecko/2008052912 Firefox/3.0
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.9) Gecko/2008052912 Firefox/3.0

Viewing the source of asciimation.co.nz produces a load of graphic gunk, seemingly from the graphic buffer (you can sometimes see a scrambled website logo in it). Is it possible that the long string at the beginning is causing this?

Reproducible: Always

Steps to Reproduce:
1. Navigate to asciimation.co.nz
2. View source of page
3. Admire the contents of your graphical buffer. Sometimes it starts off blank but once you scroll gunk starts showing up. 
Actual Results:  
Gunk.

Expected Results:  
No gunk.

Comment 1

[Sylvain Pasche]

Attachment: testcase (gzipped)

This is caused by very long lines in the the source (more that 1 million characters). This gzipped testcase contains such a long line. Load it with view-source:... and try to resize the browser window. Garbage will appear on screen.

With a debug build, I'm getting assertions like:
nsLineLayout: Text(293)@0x852990 metrics=1720320,900!
nsLineLayout: Text(294)@0x8529f8 metrics=1720320,900!

(CRAZY_WIDTH macro is returning true)

Comment 2

[Tom Oldbury]

Appears to be a regression as on Firefox 2.0.0.14 there is no gunk. 

Comment 3

[Nicos Gollan]

Still an issue with

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.11) Gecko/2009061319 Iceweasel/3.0.11 (Debian-3.0.11-1)

Could someone please mark it as something major? The "gunk" looks bad enough to be an actual memory management issue.

Comment 4

[Abe - QA (:Abe_LV)]

Not reproducible in windows-XP with latest Nightly and release.
Considering this, I will mark this issue as Resolved-WORKSFORME. If anyone can still reproduce it, feel free to reopen the issue and provide more information. Thanks

--
Version 	48.0a1
Build ID 	20160419030312
Update Channel 	nightly
User Agent 	Mozilla/5.0 (Windows NT 5.1; rv:48.0) Gecko/20100101 Firefox/48.0

Comment 5

[Abe - QA (:Abe_LV)]

Version 	48.0a1
Build ID 	20160419030312
Update Channel 	nightly
User Agent 	Mozilla/5.0 (X11; Linux i686; rv:48.0) Gecko/20100101 Firefox/48.0