PR/46890 CVS commit: src/sys/arch/mips

["Nick Hudson" <skrll%netbsd.org@localhost>]

The following reply was made to PR port-cobalt/46890; it has been noted by 
GNATS.

From: "Nick Hudson" <skrll%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/46890 CVS commit: src/sys/arch/mips
Date: Sun, 11 May 2014 07:53:28 +0000

 Module Name:   src
 Committed By:  skrll
 Date:          Sun May 11 07:53:28 UTC 2014
 
 Modified Files:
        src/sys/arch/mips/include: pmap.h
        src/sys/arch/mips/mips: pmap.c pmap_segtab.c
 
 Log Message:
 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 -r1.62 -r1.63 src/sys/arch/mips/include/pmap.h
 cvs rdiff -u -r1.213 -r1.214 src/sys/arch/mips/mips/pmap.c
 cvs rdiff -u -r1.7 -r1.8 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.