Date: 12 Oct 1998 21:39:28 +0200 From: dag-erli@ifi.uio.no (Dag-Erling C. =?iso-8859-1?Q?Sm=F8rgrav?= ) To: dg@root.com Cc: freebsd-bugs@FreeBSD.ORG Subject: Re: bin/8275: w/top/etc randomly fail with 'Cannot allocate memory' Message-ID: <xzp1zodsh73.fsf@hall.ifi.uio.no> In-Reply-To: David Greenman's message of "Mon, 12 Oct 1998 12:31:08 -0700" References: <199810121931.MAA02205@implode.root.com>
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David Greenman <dg@root.com> writes:
> It should pad "size" with a few processes worth (perhaps increase it by
> 10%...size += size / 10).
Yes.
Do I have your approval to commit the following patch:
Index: kvm_proc.c
===================================================================
RCS file: /home/ncvs/src/lib/libkvm/kvm_proc.c,v
retrieving revision 1.21
diff -u -r1.21 kvm_proc.c
--- kvm_proc.c 1998/09/16 04:17:46 1.21
+++ kvm_proc.c 1998/10/12 19:39:14
@@ -302,10 +302,16 @@
_kvm_syserr(kd, kd->program, "kvm_getprocs");
return (0);
}
- kd->procbase = (struct kinfo_proc *)_kvm_malloc(kd, size);
- if (kd->procbase == 0)
- return (0);
- st = sysctl(mib, op == KERN_PROC_ALL ? 3 : 4, kd->procbase, &size, NULL, 0);
+ kd->procbase = 0;
+ do {
+ size += size / 10;
+ kd->procbase = (struct kinfo_proc *)_kvm_realloc(kd,
+ size);
+ if (kd->procbase == 0)
+ return (0);
+ st = sysctl(mib, op == KERN_PROC_ALL ? 3 : 4,
+ kd->procbase, &size, NULL, 0);
+ } while (st == -1 && errno == ENOMEM);
if (st == -1) {
_kvm_syserr(kd, kd->program, "kvm_getprocs");
return (0);
DES
--
Dag-Erling Smørgrav - dag-erli@ifi.uio.no
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