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by CJefferson 2734 days ago
A friend of mine spent last Christmas debugging an issue in memcpy in glibc (on Intel 32-bit CPUs). Glibc is less well tested than I expected, and has ASM implementations of many functions for many CPUs, some of which are (obviously) less well supported than others.
1 comments

IA32 is probably not getting all the focus from devs and users this days, still surprising whoever... Do you have a link to the issue, out of curiosity?
Wow thats scary indeed... They where using x86 signed compare instead of unsigned (jg vs ja)... Thanks for the link btw!