Date: Fri, 4 Jun 1999 18:30:02 -0700 (PDT) From: Luoqi Chen <luoqi@watermarkgroup.com> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/11948: mmaping memory device, then forking causes negative rss Message-ID: <199906050130.SAA05271@freefall.freebsd.org>
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The following reply was made to PR kern/11948; it has been noted by GNATS.
From: Luoqi Chen <luoqi@watermarkgroup.com>
To: freebsd-gnats-submit@freebsd.org, toasty@dragondata.com
Cc:
Subject: Re: kern/11948: mmaping memory device, then forking causes negative rss
Date: Fri, 04 Jun 1999 21:20:27 -0400
Can you try the following patch? It should fix the negative rss size
problem.
Please also try to see if you can reproduce the "multiple frees" panic
after
the patch.
-lq
Index: pmap.c
===================================================================
RCS file: /home/ncvs/src/sys/i386/i386/pmap.c,v
retrieving revision 1.237
diff -u -r1.237 pmap.c
--- pmap.c 1999/06/01 18:19:44 1.237
+++ pmap.c 1999/06/05 01:10:07
@@ -2655,7 +2655,7 @@
if (srcptepaddr & PG_PS) {
if (dst_pmap->pm_pdir[ptepindex] == 0) {
dst_pmap->pm_pdir[ptepindex] =
(pd_entry_t) srcptepaddr;
- dst_pmap->pm_stats.resident_count +=
NBPDR;
+ dst_pmap->pm_stats.resident_count +=
NBPDR / PAGE_SIZE;
}
continue;
}
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