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PR/44900 CVS commit: [netbsd-6-0] src/sys/arch/mips

The following reply was made to PR port-mips/44900; it has been noted by GNATS.

From: "Soren Jacobsen" <>
Subject: PR/44900 CVS commit: [netbsd-6-0] src/sys/arch/mips
Date: Wed, 8 Nov 2017 21:22:48 +0000

 Module Name:	src
 Committed By:	snj
 Date:		Wed Nov  8 21:22:48 UTC 2017
 Modified Files:
 	src/sys/arch/mips/include [netbsd-6-0]: pmap.h
 	src/sys/arch/mips/mips [netbsd-6-0]: pmap.c pmap_segtab.c
 Log Message:
 Pull up following revision(s) (requested by skrll in ticket #1068):
 	sys/arch/mips/include/pmap.h: revision 1.63
 	sys/arch/mips/mips/pmap.c: revision 1.214
 	sys/arch/mips/mips/pmap_segtab.c: revision 1.8
 Deal with incompatible cache aliases. Specifically,
 - always flush an ephemeral page on unmap
 - track unmanaged mappings (mappings entered via pmap_kenter_pa) for
     aliases where required and handle appropriately (via pmap_enter_pv)
 Hopefully this (finally) addresses the instability reported in the
 following PRs:
 PR/44900 - R5000/Rm5200 mips ports are broken
 PR/46890 - upcoming NetBSD 6.0 release is very unstable / unusable on cobalt qube 2
 PR/48628 - cobalt and hpcmips ports are dead
 To generate a diff of this commit:
 cvs rdiff -u -r1.61.8.1 -r1. src/sys/arch/mips/include/pmap.h
 cvs rdiff -u -r1. -r1. src/sys/arch/mips/mips/pmap.c
 cvs rdiff -u -r1.4.2.1 -r1. src/sys/arch/mips/mips/pmap_segtab.c
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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