> Maybe we should, but requiring the use of a new low level facility that was introduced in the 7.0 kernel, to address a regression that exists only in 7.0+, seems not great.

... so that leaves me confused. My understanding is that the regression is triggered with the 7.0+ kernel and can be mitigated with huge pages turned on.

My question therefore was how come this regression hasn't been visible with huge pages turned off with older kernel versions? You say that it was but I can't find this data point.