Segfault when running stored procedures using DBD::Sybase

Hi,

 I have been able to invoke external stored on a remote SQL server
with perl using something similar to the following:

my $sql = <<SQL;
	declare \@exit_rc int, \@exit_text varchar(2000);
exec master.dbo.load '$job', '$flag', \@exit_rc output, \@exit_text output;
SQL 
	print "SQL is\n$sql\n";
	my $sth;
	eval {
		$sth = $dbh->prepare($sql) || die "Can't prepare $sql : $DBI::errstr\n";
	};
	eval {
		$sth->execute or die "Can't execute ${sql}: $DBI::errstr\n";
	};
     my ($code,$error) = $sth->syb_output_params();

For some bizzare reason, a call to syb_output_params() does not return
anything anymore.

Reading the perldoc for DBD::Sybase, I saw that there is yet another
way to run stored procedures. However, I get a segfault when I ran the
following:

my $sql = "exec master.dbo.load ?, ?, ?, ?";
	print "SQL is\n$sql\n";
	my $sth;
	eval {
		$sth = $dbh->prepare("exec msater.dbo.ing_bulk_load ?,?,?,?") || die
"Can't prepare $sql : $DBI::errstr\n";
	};
	if($@) {
		return $@;
	}
	eval {
		$sth->execute($job,$flag,$code,$mesg) or die "Can't execute ${sql}:
$DBI::errstr\n";
	};
	my (@data) = $sth->syb_output_params();
	foreach (@data) {
		print "err code = $_\n";
	}


The prepare() works fine, but I get a segfault execute() is being
called. I tried passing arguments  to execute() in single quotes, but
that didn't help either. Can someone show me the right way to do this?

Thanks,
--ravi