From owner-cvs-src@FreeBSD.ORG  Mon Jan 19 20:26:41 2004
Return-Path: <owner-cvs-src@FreeBSD.ORG>
Delivered-To: cvs-src@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id F398516A4CE; Mon, 19 Jan 2004 20:26:40 -0800 (PST)
Received: from VARK.homeunix.com (adsl-68-122-6-70.dsl.pltn13.pacbell.net
	[68.122.6.70])	by mx1.FreeBSD.org (Postfix) with ESMTP
	id CD0FF43D1F; Mon, 19 Jan 2004 20:26:39 -0800 (PST)
	(envelope-from das@FreeBSD.ORG)
Received: from VARK.homeunix.com (localhost [127.0.0.1])
	by VARK.homeunix.com (8.12.10/8.12.10) with ESMTP id i0K4QAKu091162;
	Mon, 19 Jan 2004 20:26:10 -0800 (PST)
	(envelope-from das@FreeBSD.ORG)
Received: (from das@localhost)
	by VARK.homeunix.com (8.12.10/8.12.10/Submit) id i0K4QARZ091161;
	Mon, 19 Jan 2004 20:26:10 -0800 (PST)
	(envelope-from das@FreeBSD.ORG)
Date: Mon, 19 Jan 2004 20:26:10 -0800
From: David Schultz <das@FreeBSD.ORG>
To: Marcel Moolenaar <marcel@FreeBSD.ORG>
Message-ID: <20040120042610.GA91142@VARK.homeunix.com>
Mail-Followup-To: Marcel Moolenaar <marcel@FreeBSD.ORG>,
	src-committers@FreeBSD.ORG, cvs-src@FreeBSD.ORG, cvs-all@FreeBSD.ORG
References: <200401200329.i0K3TOL0029675@repoman.freebsd.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <200401200329.i0K3TOL0029675@repoman.freebsd.org>
cc: cvs-src@FreeBSD.ORG
cc: src-committers@FreeBSD.ORG
cc: cvs-all@FreeBSD.ORG
Subject: Re: cvs commit: src/sys/ia64/ia64 trap.c
X-BeenThere: cvs-src@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: CVS commit messages for the src tree <cvs-src.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src>,
	<mailto:cvs-src-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src>
List-Post: <mailto:cvs-src@freebsd.org>
List-Help: <mailto:cvs-src-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src>,
	<mailto:cvs-src-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 20 Jan 2004 04:26:41 -0000

On Mon, Jan 19, 2004, Marcel Moolenaar wrote:
> marcel      2004/01/19 19:29:24 PST
> 
>   FreeBSD src repository
> 
>   Modified files:
>     sys/ia64/ia64        trap.c 
>   Log:
>   Fix handling of FP traps:
>   o  For traps, the cr.iip register points to the next instruction to
>      execute on interrupt return (modulo slot). Since we need to get
>      the bundle of the instruction that caused the FP fault/trap, make
>      sure we fetch the previous bundle if the next instruction is in
>      fact the first in a bundle.
>   o  When we call the FPSWA handler, we need to tell it whether it's
>      a trap or a fault (first argument). This was hardcoded to mean a
>      fault.
>   
>   Also, for FP faults, when a fault is converted to a trap, adjust the
>   cr.iip and cr.ipsr registers to point to the next instruction. This
>   makes sure that the SIGFPE handler gets a consistent state.

Does this fix the spurious SIGFPEs that were being delivered on
denormal traps?