From owner-freebsd-amd64@FreeBSD.ORG  Fri Jul 20 23:10:08 2007
Return-Path: <owner-freebsd-amd64@FreeBSD.ORG>
Delivered-To: freebsd-amd64@hub.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id A021616A419
	for <freebsd-amd64@hub.freebsd.org>;
	Fri, 20 Jul 2007 23:10:08 +0000 (UTC)
	(envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (freefall.freebsd.org
	[IPv6:2001:4f8:fff6::28])
	by mx1.freebsd.org (Postfix) with ESMTP id 8458813C457
	for <freebsd-amd64@hub.freebsd.org>;
	Fri, 20 Jul 2007 23:10:08 +0000 (UTC)
	(envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1])
	by freefall.freebsd.org (8.14.1/8.14.1) with ESMTP id l6KNA8iF025310
	for <freebsd-amd64@freefall.freebsd.org>; Fri, 20 Jul 2007 23:10:08 GMT
	(envelope-from gnats@freefall.freebsd.org)
Received: (from gnats@localhost)
	by freefall.freebsd.org (8.14.1/8.14.1/Submit) id l6KNA82v025309;
	Fri, 20 Jul 2007 23:10:08 GMT (envelope-from gnats)
Date: Fri, 20 Jul 2007 23:10:08 GMT
Message-Id: <200707202310.l6KNA82v025309@freefall.freebsd.org>
To: freebsd-amd64@FreeBSD.org
From: dfilter@FreeBSD.ORG (dfilter service)
X-Mailman-Approved-At: Fri, 20 Jul 2007 23:40:45 +0000
Cc: 
Subject: Re: amd64/89550: commit references a PR
X-BeenThere: freebsd-amd64@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
Reply-To: dfilter service <dfilter@FreeBSD.ORG>
List-Id: Porting FreeBSD to the AMD64 platform <freebsd-amd64.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-amd64>,
	<mailto:freebsd-amd64-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-amd64>
List-Post: <mailto:freebsd-amd64@freebsd.org>
List-Help: <mailto:freebsd-amd64-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-amd64>,
	<mailto:freebsd-amd64-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 20 Jul 2007 23:10:08 -0000

The following reply was made to PR amd64/89550; it has been noted by GNATS.

From: dfilter@FreeBSD.ORG (dfilter service)
To: bug-followup@FreeBSD.org
Cc:  
Subject: Re: amd64/89550: commit references a PR
Date: Fri, 20 Jul 2007 23:02:24 +0000 (UTC)

 se          2007-07-20 23:02:01 UTC
 
   FreeBSD src repository
 
   Modified files:
     sys/dev/sym          sym_hipd.c 
   Log:
   Fix Symbios driver on amd64: Since amd64 has 64 bit pointers but the same
   4KB pages as i386, data structures that just fit in one page on i386 (and
   on 64 bit architectures with 8KB pages) can be distributed over two pages
   on amd64. This is a porblem in the case of the Symbios driver, since the
   SCRIPTS engine in the SCSI chip operates on physical addresses and needs
   physically contiguous memory. Earlier patches used contigmalloc on amd64,
   but this version replaces part of a structure by a pointer to that data.
   In order to not introduce an extra indirection for other architectures,
   the change has been made conditional on __amd64__.
   
   Earlier attempts to repair this problem are removed (i.e. the macros that
   made amd64 use contigmalloc). The fix was submitted by Jan Mikkelsen and
   modified by me to only affect amd64.
   
   PR:             89550
   Submitted by:   janm at transactionware dot com (Jan Mikkelsen)
   Approved by:    re (Hiroki Sato)
   MFC after:      2 weeks
   
   Revision  Changes    Path
   1.67      +17 -12    src/sys/dev/sym/sym_hipd.c
 _______________________________________________
 cvs-all@freebsd.org mailing list
 http://lists.freebsd.org/mailman/listinfo/cvs-all
 To unsubscribe, send any mail to "cvs-all-unsubscribe@freebsd.org"