On Sat, 17 Sep 2016, Bruce Evans wrote:
Author: bde
Date: Sat Sep 17 14:00:52 2016
New Revision: 305899
URL: https://svnweb.freebsd.org/changeset/base/305899
Log:
Remove all kernel uses of pcb_psl, but keep in in the struct to
preserve the ABI and API for applications. It was removed in the port
to amd64, but was remained as garbage giving a micro-pessimization and
spurious single-step traps on i386.
...
Actually, I committed a version that breaks the API by renaming the
variable. I will leave it like that. pcb_psl is not used anywhere
in head/ports, so it is used in at most the externally-maintained part
of a port or things like gdb scripts.
Bruce
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