> The apparent inability (and perhaps more importantly - total unwilling[n]ess) from the PaX team to be able to see what makes sense in a long-term general kernel and what does not, and split things up and try to push the sensible things up (and know which things are too ugly or too specialized to make sense), caused many PaX features to never be merged.
In a comment [0] the PAX team says
> we never ever considered submitting grsecurity or PaX for mainline inclusion [...] anything similar in the past was user action, not on our behalf
I don't know how Spengler and PAX relate.