Firefox 28 crashing

[dNx]

Hey,

i got this error with my desktop pc and my notebook:

http://imgur.com/UurPWBQ,nRUC3If#0
http://imgur.com/UurPWBQ,nRUC3If#1

What's causing this and how to fix this?

Regards.

[Tete]

Thank you for letting me know the problem.
I have already gotten the report of that problem, but I still have not been able to reproduce the problem on my system.

If I could reproduce the problem on my system, I would get easier to find the cause of the problem.
I would be glad if anyone can send the crash dump file to me…

[Tete]

The exception 0xc0000094 means STATUS_INTEGER_DIVIDE_BY_ZERO (dividing an integer type by 0).
I checked the area where exception occurred (offset 0x0000cf6a from the start of mozglue.dll file), but I could not find any division instructions there.
This is no more than my guess, but I think the object code may have been dynamically changed during execution of the program by some cause.

[xunxun]

Maybe it is caused by Anti-virus software.

[Tete]

I checked the area where exception occurred (offset 0x0000cf6a from the start of mozglue.dll file), but I could not find any division instructions there.

I was wrong. As far as I have checked by attaching to the running process of my Firefox 28.0 with debugger, division instruction is used.
http://mxr.mozilla.org/mozilla-release/source/mfbt/double-conversion/fast-dtoa.cc#352

[xunxun]

But only at the first time, divisor is zero.
Other time, divisor is not zero.

[Tete]

I found the similar crash reports.

https://crash-stats.mozilla.com/report/list?signature=v8%3A%3Ainternal%3A%3ADigitGen%28v8%3A%3Ainternal%3A%3ADiyFp%2C+v8%3A%3Ainternal%3A%3ADiyFp%2C+v8%3A%3Ainternal%3A%3ADiyFp%2C+v8%3A%3Ainternal%3A%3AVector%3Cchar%3E%2C+int*%2C+int*%29

Bug 694419 – EXCEPTION_INT_DIVIDE_BY_ZERO Crash @ v8::internal::DigitGen
https://bugzilla.mozilla.org/show_bug.cgi?id=694419

[Tete]

Crash Reports for double_conversion::DigitGen
https://crash-stats.mozilla.com/report/list?signature=double_conversion%3A%3ADigitGen&product=Firefox&query_type=contains&range_unit=weeks&process_type=any&hang_type=any

[Tete]

dNx, if you know how to reproduce the crash, I would appreciate it if you could tell me the method.

[dNx]

I try to reproduce it (happened randomly so far). I get back to you later.

[Tete]

Thanks.

According to Bug 929834, this problem seems to be caused by VC2013.
It is said the problem has fixed in VS2013 Update 2 CTP2.
https://bugzilla.mozilla.org/show_bug.cgi?id=929834

[dNx]

So you can fix this rather easily?

I tried everything, can't reproduce it. Happens occasionally when watching youtube videos and normal surfing. No idea..

[Tete]

Xunxun told me that there is a workaround for this issue.
https://connect.microsoft.com/VisualStudio/feedback/details/806362/vc12-pollutes-the-floating-point-stack-when-casting-infinity-nan-to-unsigned-long

[Tete]

I have updated my build of Firefox 28.0. I guess this problem has been fixed.

[dNx]

No crash since updating. Thanks a lot!