commit 399cc3dad0cdfe8dca4a0ae9035a0554d7223eb2
Author: Steve Dickson <steved@dickson.boston.devel.redhat.com>
Date:   Thu Jan 17 11:25:37 2008 -0500

    Stop segfaults on amd64 during warnings messages by creating
    a second va_list in xlog_backend() and then use that va_list
    to print messages on stderr.
    
    Signed-off-by: Steinar H. Gunderson <sesse@debian.org>
    Signed-off-by: Steve Langasek <vorlon@debian.org>
    Signed-off-by: Steve Dickson <steved@dickson.boston.devel.redhat.com>

diff -up nfs-utils-1.1.1/support/nfs/xlog.c.orig nfs-utils-1.1.1/support/nfs/xlog.c
--- nfs-utils-1.1.1/support/nfs/xlog.c.orig	2007-10-18 23:07:28.000000000 -0400
+++ nfs-utils-1.1.1/support/nfs/xlog.c	2008-01-22 14:13:36.000000000 -0500
@@ -133,9 +133,14 @@ xlog_enabled(int fac)
 void
 xlog_backend(int kind, const char *fmt, va_list args)
 {
+	va_list args2;
+
 	if (!(kind & (L_ALL)) && !(logging && (kind & logmask)))
 		return;
 
+	if (log_stderr)
+		va_copy(args2, args);
+
 	if (log_syslog) {
 		switch (kind) {
 		case L_FATAL:
@@ -171,9 +176,9 @@ xlog_backend(int kind, const char *fmt, 
 #else
 		fprintf(stderr, "%s: ", log_name);
 #endif
-
-		vfprintf(stderr, fmt, args);
+		vfprintf(stderr, fmt, args2);
 		fprintf(stderr, "\n");
+		va_end(args2);
 	}
 
 	if (kind == L_FATAL)