PR/46890 CVS commit: [netbsd-6] src/sys/arch/mips/mips

["Manuel Bouyer" <bouyer%netbsd.org@localhost>]

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

From: "Manuel Bouyer" <bouyer%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/46890 CVS commit: [netbsd-6] src/sys/arch/mips/mips
Date: Wed, 21 May 2014 20:39:17 +0000

 Module Name:   src
 Committed By:  bouyer
 Date:          Wed May 21 20:39:17 UTC 2014
 
 Modified Files:
        src/sys/arch/mips/mips [netbsd-6]: pmap.c vm_machdep.c
 
 Log Message:
 Pull up following revision(s) (requested by skrll in ticket #1056):
        sys/arch/mips/mips/pmap.c: revision 1.211
        sys/arch/mips/mips/pmap.c: revision 1.212
        sys/arch/mips/mips/pmap.c: revision 1.213
        sys/arch/mips/mips/vm_machdep.c: revision 1.143
        sys/arch/mips/mips/pmap.c: revision 1.210
 Fix a logic inversion introduced with the matt-nb5-mips64 for
 pmap_{zero,copy}_page cache alias handing. The check previously used
 PG_MD_UNCACHED_P, where it now uses PG_MD_CACHED_P, when considering if
 a cache invalidation is required.
 Additionally flush the cache for the uarea va to avoid potential (future)
 cache aliases in cpu_uarea_free when handing pages back to uvm for later
 use.
 ok matt@
 Hopefully this addresses the instability reported in the following PRs:
 PR/44900 - R5000/Rm5200 mips ports are broken
 PR/46170 - NetBSD/cobalt 6.0_BETA does not boot
 PR/46890 - upcoming NetBSD 6.0 release is very unstable / unusable on cobalt 
qube 2
 PR/48628 - cobalt and hpcmips ports are dead
 Grab pv_list lock in pmap_unmap_ephemeral_page only when needed.
 Make PARANOIADIAG compile.
 Use pmap_tlb_asid_check to reduce code c&p.
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.207.2.1 -r1.207.2.2 src/sys/arch/mips/mips/pmap.c
 cvs rdiff -u -r1.141 -r1.141.8.1 src/sys/arch/mips/mips/vm_machdep.c
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.