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Date: Fri, 5 Feb 1999 20:50:16 -0800 (PST)
From: Matthew Dillon <dillon@apollo.backplane.com>
Message-Id: <199902060450.UAA03021@apollo.backplane.com>
To: William Woods <wwoods@cybcon.com>
Cc: current@FreeBSD.ORG, Bruce Evans <bde@zeta.org.au>
Subject: Re: Top not working in -Current??
References:  <XFMail.990205203938.wwoods@cybcon.com>
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:And the fix is.....
:
:On 06-Feb-99 Matthew Dillon wrote:
:> 
:>:
:>:Bruce
:> 
:>     Ahhhhhhhhhhh.  Easy to fix.
:> 
:

    This this patch to /usr/src/lib/libkvm/kvm_getswapinfo.c.  Then
    recompile libkvm and try top and pstat -s again.

					-Matt

					Matthew Dillon 
					<dillon@backplane.com>


Index: kvm_getswapinfo.c
===================================================================
RCS file: /home/ncvs/src/lib/libkvm/kvm_getswapinfo.c,v
retrieving revision 1.4
diff -u -r1.4 kvm_getswapinfo.c
--- kvm_getswapinfo.c	1999/01/27 11:29:15	1.4
+++ kvm_getswapinfo.c	1999/02/06 04:46:48
@@ -127,10 +127,10 @@
 		KGET(NL_NSWDEV, nswdev);
 		KGET(NL_DMMAX, dmmax);
 
-		if (kvm_swap_nl[NL_SWAPLIST].n_value)
+		if (kvm_swap_nl[NL_SWAPLIST].n_type != N_UNDF)
 			type = 1;
 
-		if (kvm_swap_nl[NL_SWAPBLIST].n_value)
+		if (kvm_swap_nl[NL_SWAPBLIST].n_type != N_UNDF)
 			type = 2;
 
 		/*
@@ -406,6 +406,13 @@
 	struct blist blcopy = { 0 };
 
 	KGET(NL_SWAPBLIST, swapblist);
+
+	if (swapblist == NULL) {
+		if (flags & SWIF_DUMP_TREE)
+			printf("radix tree: NULL - no swap in system\n");
+		return;
+	}
+
 	KGET2(swapblist, &blcopy, sizeof(blcopy), "*swapblist");
 
 	if (flags & SWIF_DUMP_TREE) {

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