BUG: to_datetime with floats and unit not matching Timestamp by jbrockmendel · Pull Request #56037 · pandas-dev/pandas (original) (raw)

I think this is incorrect: I'm getting an XPASS here.

My guess is that you've hit this on i386, probably due to i387 weirdness. However, this wouldn't affect other 32-bit architectures or i386 builds with -mfpmath=sse. Gentoo is switching towards the latter since i387 is simply causing too many floating-point issues.