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From: "Bjoern A. Zeeb" <bz@FreeBSD.org>
Date: Thu, 13 Aug 2009 14:59:04 +0000 (UTC)
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Subject: svn commit: r196185 - head/lib/libkvm
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Author: bz
Date: Thu Aug 13 14:59:04 2009
New Revision: 196185
URL: http://svn.freebsd.org/changeset/base/196185

Log:
  Rather than replicating the maths from the kernel, use the
  value the kernel calculated directly as we already read it
  with struct vnet.  This will make kvm_vnet.c more resilent
  in case of possible kernel changes.
  
  Reviewed by:	rwatson
  Approved by:	re (kib)

Modified:
  head/lib/libkvm/kvm_vnet.c

Modified: head/lib/libkvm/kvm_vnet.c
==============================================================================
--- head/lib/libkvm/kvm_vnet.c	Thu Aug 13 14:50:39 2009	(r196184)
+++ head/lib/libkvm/kvm_vnet.c	Thu Aug 13 14:59:04 2009	(r196185)
@@ -195,7 +195,7 @@ _kvm_vnet_selectpid(kvm_t *kd, pid_t pid
 	kd->vnet_start = nl[NLIST_START_VNET].n_value;
 	kd->vnet_stop = nl[NLIST_STOP_VNET].n_value;
 	kd->vnet_current = (uintptr_t)prison.pr_vnet;
-	kd->vnet_base = (uintptr_t)vnet.vnet_data_mem - kd->vnet_start;
+	kd->vnet_base = vnet.vnet_data_base;
 	return (0);
 }