From owner-freebsd-current@FreeBSD.ORG  Fri Sep  6 15:12:43 2013
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTP id 1EBD3D5B
 for <current@freebsd.org>; Fri,  6 Sep 2013 15:12:43 +0000 (UTC)
 (envelope-from danfe@regency.nsu.ru)
Received: from mx.nsu.ru (mx.nsu.ru [84.237.50.39])
 (using TLSv1 with cipher AES256-SHA (256/256 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id BE5AC2601
 for <current@freebsd.org>; Fri,  6 Sep 2013 15:12:42 +0000 (UTC)
Received: from regency.nsu.ru ([193.124.210.26])
 by mx.nsu.ru with esmtp (Exim 4.69)
 (envelope-from <danfe@regency.nsu.ru>) id 1VHxi8-0000Fw-D2
 for current@freebsd.org; Fri, 06 Sep 2013 22:12:36 +0700
Received: from regency.nsu.ru (localhost [127.0.0.1])
 by regency.nsu.ru (8.14.2/8.14.2) with ESMTP id r86FCwsS031085
 for <current@freebsd.org>; Fri, 6 Sep 2013 22:12:58 +0700 (NOVT)
 (envelope-from danfe@regency.nsu.ru)
Received: (from danfe@localhost)
 by regency.nsu.ru (8.14.2/8.14.2/Submit) id r86FCruj031067
 for current@freebsd.org; Fri, 6 Sep 2013 22:12:53 +0700 (NOVT)
 (envelope-from danfe)
Date: Fri, 6 Sep 2013 22:12:52 +0700
From: Alexey Dokuchaev <danfe@nsu.ru>
To: current@freebsd.org
Subject: Cross-buildkernel (i386->amd64) is broken?
Message-ID: <20130906151252.GA28654@regency.nsu.ru>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.4.2.1i
X-Mailman-Approved-At: Fri, 06 Sep 2013 16:05:06 +0000
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
 <freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
 <mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 06 Sep 2013 15:12:43 -0000

Hi there,

I've been trying to cross-build an amd64 kernel on i386 host on recent
-CURRENT for a while, and it fails like this:

  $ cd /usr/src && make buildkernel TARGET=amd64 TARGET_ARCH=amd64
  [...]
  In file included from /usr/src/sys/amd64/amd64/genassym.c:46:
  In file included from /usr/src/sys/sys/buf.h:260:
  In file included from /usr/src/sys/sys/proc.h:62:
  /usr/src/sys/sys/pcpu.h:188:1: error: static_assert failed "compile-time assertion failed"
  CTASSERT((PAGE_SIZE / sizeof(struct pcpu)) * sizeof(struct pcpu) == PAGE_SIZE);

Full log is available here: http://193.124.210.26/xbuild-amd64.log

I remember it used to work before (at least at Jun 28th, when I've build
my last kernel this way).  Is is a well known issue?  How do I remedy it?
Thanks.

./danfe