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> but this feature was not used in UNIX I believe this was actually used (to a limited degree) in later releases of 2BSD, as features from 4BSD were backported
by spijdar 5y ago
> but this feature was not used in UNIX
I believe this was actually used (to a limited degree) in later releases of 2BSD, as features from 4BSD were backported to the PDP-11, and the kernel ballooned in size such that overlays were in necessary. The authors of said overlays seemed rather exasperated by the whole thing, and I vaguely remember watching a talk on YouTube where someone recounted the (apocryphal?) tale of them pushing their pdp-11 out the window and cheering.