From 5dfe9012360e34890eaa980de9b51b2387dbdc5f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=B8ren=20Schmidt?= <sos@FreeBSD.org>
Date: Sun, 9 Oct 1994 22:03:58 +0000
Subject: [PATCH] Added spare space on the usr stack. Used in ibcs2 emulation.

---
 lib/libkvm/kvm_proc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/libkvm/kvm_proc.c b/lib/libkvm/kvm_proc.c
index 5483ca467ae..2c6cc5c2837 100644
--- a/lib/libkvm/kvm_proc.c
+++ b/lib/libkvm/kvm_proc.c
@@ -528,8 +528,8 @@ kvm_doargv(kd, kp, nchr, info)
 	 * Pointers are stored at the top of the user stack.
 	 */
 	if (p->p_stat == SZOMB || 
-	    kvm_uread(kd, p, USRSTACK - sizeof(arginfo), (char *)&arginfo,
-		      sizeof(arginfo)) != sizeof(arginfo))
+	    kvm_uread(kd, p, USRSTACK - sizeof(arginfo) - SPARE_USRSPACE,
+		      (char *)&arginfo, sizeof(arginfo)) != sizeof(arginfo))
 		return (0);
 
 	(*info)(&arginfo, &addr, &cnt);