578742 - Crash in [@ gfxUserFontSet::OnLoadComplete(gfxFontEntry*, unsigned char const*, unsigned int, unsigned int) ]

Status: RESOLVED DUPLICATE of bug 578022

(Core :: Graphics, defect)

Description

[Marcia Knous [:marcia]]

Seen while reviewing crash stats and reproduced using Mozilla/5.0 (Windows; Windows NT 5.1; en-US; rv:2.0b2pre) Gecko/20100714 Minefield/4.0b2pre.

STR:
1. Load the site in the URL.
2. Crash 100%

https://crash-stats.mozilla.com/report/index/e64f77c8-4054-4880-ba3f-d5ea32100714. The crashes started showing up in crash stats using the
2010071400 build.

Frame  	Module  	Signature [Expand]  	Source
0 	xul.dll 	gfxUserFontSet::OnLoadComplete 	gfx/thebes/gfxUserFontSet.cpp:286
1 	ntdll.dll 	_SEH_epilog

Will search for a regression window. I haven't been able to reproduce on any other machine in the lab other than XP, despite the fact there are four other crashes in crash stats that are Win 7 crashes.

Comment 1

[Marcia Knous [:marcia]]

I went back to the Mozilla/5.0 (Windows; Windows NT 5.1; en-US; rv:2.0b2pre) Gecko/20100713 Minefield/4.0b2pre build and I did not crash, but I have not been able to consistently crash on the 20100714 build. So it is really not a 100% reproducible crash.

Comment 2

[John Daggett (:jtd)]

Marcia, what's the crash URL?  I'm pretty sure the cause is here:

http://hg.mozilla.org/mozilla-central/rev/1027e04ad4ee#l6.76

If MakePlatformFont fails and returns a null, the code still sets the mLanguageOverride.  Are we seeing on Windows crashes?

Comment 3

[Marcia Knous [:marcia]]

http://www.eenadu.net/ - sorry for not including it earlier.

Comment 4

[John Daggett (:jtd)]

Marcia, could you test with the latest trunk build?  I'm pretty sure this was fixed by the changes landed for bug 578022.  If it does then I think we can safely mark this as a duplicate of that bug.

Comment 5

[Marcia Knous [:marcia]]

Site does not crash for me using Mozilla/5.0 (Windows; Windows NT 5.1; en-US; rv:2.0b2pre) Gecko/20100719 Minefield/4.0b2pre. Marking as a dupe of 578022 per Comment 4.