I was browsing around, I had just opened up a new window containing jwz.livejournal.com, and then my browser became unresponsive. It finally crashed, although I didn't get the crash report, but the windows crash dialog. I attached a debugger and got the following stack. It appears to be a stack overflow. Julian Seward notes that the top frame there uses ~2k of stack memory, which would explain why it overflowed there. My Firefox process at the time was using nearly 1GB of private bytes. I have D2D enabled on this profile.

Here's a minidump I saved from the debugger. I was using the Win32 20100317041424 nightly.

I'm crashing alot with this stack , atleast twice a day , it isn't a top crash because breakpad doesn't always fireup http://crash-stats.mozilla.com/report/index/bp-3755e4ee-a805-4412-bc84-d62452100415 This should be a blocker , it's impossible to use D2D when you are sure that firefox will crash sooner or later

This is a saved web page able to trigger this bug, i've removed almost everything from the page because it wasn't suitable for work

What font are you rendering that with? It doesn't trigger a crash for me but I don't seem to have a font that can display it.

I can't see which font is using because as soon as the page loads firefox freezes solid ,clicking around doesn't do anything and if i use aeropeek i see a black preview and after the browser is killed by windows with an error in xul.dll without breakpad triggering. As long as i don't go to aeropeek the browser doesn't crash but is dead. This is a screenshot in safemode, maybe you can see the font http://yfrog.com/jd99899730j I'm not sure is the font because removing more from the page doesn't trigger a crash even tho i'm unable to reduce the testcase yet

Well, apart from that it's Cyrillic I have no idea. What GPU do you have?

I've a 8800gt , win7 x64 , it's not the Cyrillic stuff, i've reduced it more , see the new attach, i've replaced the cyrillic with jibberish and it still hangs. To be sure i've disabled D2D/DW and it doesn't hang. It's very weird, if i modify the source more like removing the marquee or a table it doesn't hang.

It crashes for me too on Windows 7 32bit. Using 8400GS with 196.34 drivers. http://crash-stats.mozilla.com/report/index/bp-bb37e7f3-d46d-44a5-8e78-63a352100421

Hrm, neither my NVidia or ATI hardware seems to do this, both your hardware is from the GeForce 9 series, I wonder if this is some sort of hardware specific bug.

A crash report from visiting comment #8 attachment: bp-f1aa30ac-4640-4522-8655-dc6b22100421 Using D2D, Win7 x64 and GPU is nvidia 8800 GTS on v197.45 drivers.

Bas, maybe contacting Nvidia about these problem (also problems in 550684 and 558708) could help us resolving it.

I can't reproduce it anymore since latest cairo landed Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a5pre) Gecko/20100426

Neither do I. Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a5pre) Gecko/20100426

Presumably new cairo uses slightly different fallback which resolves this problem for us. You're not seeing any other negative effects here either? (i.e. stuff not rendering correctly or anything like that)