On Wed, Jan 05, 2011, Lior Kaplan wrote about "Re: OT: PHP 32 bit numbers security issue": > It's a hardware bug, which can be avoided by the right compilation flags. > Since it comes from the legacy x87 feature, it doesn't happen on x86_64 > which is a newer architecture.
Well, the fact that everything runs on hardware doesn't mean it's a hardware bug... I assume the hardware does not go into an endless loop, but rather some incorrect code generated by gcc, is to blame, but I was curious if anyone knows the details of how a single "volatile" is what can stop this endless loop. Also, while x86_64 is a newer architecture, I didn't know it had new floating-point capabilities, so I wonder how it's relevant... To summarize, I'm curious, if anybody read all the details and can summarize them for me ;-) > > Kaplan > > p.s. > The link you gave bellow is to php.net not Zend. Sorry, I don't follow the intricacies of Php development. I remembered that 10 years ago Zend (=Zeev and Andi) were writing PHP, and just assumed it's the same today... -- Nadav Har'El | Wednesday, Jan 5 2011, 29 Tevet 5771 n...@math.technion.ac.il |----------------------------------------- Phone +972-523-790466, ICQ 13349191 |"Did you sleep well?" "No, I made a http://nadav.harel.org.il |couple of mistakes." _______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
