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In some hp300-derived pmaps, in pmap_page_protect(), don't walk off the 

end of the list of physical->virtual entires into NULL space if the last
entry is (mysteriously) wired in the pmap. Add a DEBUG printf on alpha.
This commit is contained in:
ross 1998-01-31 01:32:55 +00:00
parent 480445c035
commit 3a83745247
5 changed files with 20 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sys/arch/alpha/alpha/pmap.old.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.old.c,v 1.29 1998/01/29 05:44:57 ross Exp $ */
/* $NetBSD: pmap.old.c,v 1.30 1998/01/31 01:32:55 ross Exp $ */
/*
* Copyright (c) 1991, 1993
@ -98,7 +98,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: pmap.old.c,v 1.29 1998/01/29 05:44:57 ross Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.old.c,v 1.30 1998/01/31 01:32:55 ross Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -882,10 +882,15 @@ pmap_page_protect(pa, prot)
else {
pv = pv->pv_next;
#ifdef DEBUG
if (pmapdebug & PDB_PARANOIA)
if (pmapdebug & PDB_PARANOIA) {
printf("%s wired mapping for %lx not removed\n",
"pmap_page_protect:", pa);
printf("vm wire count %d\n",
PHYS_TO_VM_PAGE(pa)->wire_count);
}
#endif
if (pv == NULL)
break;
}
}
splx(s);

4
sys/arch/hp300/hp300/pmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.39 1998/01/06 07:03:04 thorpej Exp $ */
/* $NetBSD: pmap.c,v 1.40 1998/01/31 01:32:59 ross Exp $ */
/*
* Copyright (c) 1991, 1993
@ -1000,6 +1000,8 @@ pmap_page_protect(pa, prot)
printf("%s wired mapping for %lx not removed\n",
"pmap_page_protect:", pa);
#endif
if (pv == NULL)
break;
}
}
splx(s);

4
sys/arch/mac68k/mac68k/pmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.35 1998/01/06 07:03:07 thorpej Exp $ */
/* $NetBSD: pmap.c,v 1.36 1998/01/31 01:33:02 ross Exp $ */
/*
* Copyright (c) 1991, 1993
@ -934,6 +934,8 @@ pmap_page_protect(pa, prot)
printf("%s wired mapping for %lx not removed\n",
"pmap_page_protect:", pa);
#endif
if (pv == NULL)
break;
}
}
splx(s);

4
sys/arch/mvme68k/mvme68k/pmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.11 1998/01/06 07:03:11 thorpej Exp $ */
/* $NetBSD: pmap.c,v 1.12 1998/01/31 01:33:04 ross Exp $ */
/*
* Copyright (c) 1991, 1993
@ -1097,6 +1097,8 @@ pmap_page_protect(pa, prot)
printf("%s wired mapping for %x not removed\n",
"pmap_page_protect:", pa);
#endif
if (pv == NULL)
break;
}
}
splx(s);

4
sys/arch/x68k/x68k/pmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.14 1998/01/06 07:03:14 thorpej Exp $ */
/* $NetBSD: pmap.c,v 1.15 1998/01/31 01:33:06 ross Exp $ */
/*
* Copyright (c) 1991, 1993
@ -1035,6 +1035,8 @@ pmap_page_protect(pa, prot)
printf("%s wired mapping for %lx not removed\n",
"pmap_page_protect:", pa);
#endif
if (pv == NULL)
break;
}
}
splx(s);