From owner-cvs-src@FreeBSD.ORG  Fri Dec 23 13:05:30 2005
Return-Path: <owner-cvs-src@FreeBSD.ORG>
X-Original-To: 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 6C51716A41F;
	Fri, 23 Dec 2005 13:05:30 +0000 (GMT)
	(envelope-from grehan@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP id A195243D45;
	Fri, 23 Dec 2005 13:05:29 +0000 (GMT)
	(envelope-from grehan@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.13.1/8.13.1) with ESMTP id jBND5SHG017731;
	Fri, 23 Dec 2005 13:05:28 GMT
	(envelope-from grehan@repoman.freebsd.org)
Received: (from grehan@localhost)
	by repoman.freebsd.org (8.13.1/8.13.1/Submit) id jBND5Sx4017730;
	Fri, 23 Dec 2005 13:05:28 GMT (envelope-from grehan)
Message-Id: <200512231305.jBND5Sx4017730@repoman.freebsd.org>
From: Peter Grehan <grehan@FreeBSD.org>
Date: Fri, 23 Dec 2005 13:05:28 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Cc: 
Subject: cvs commit: src/sys/powerpc/powerpc db_trace.c trap_subr.S
X-BeenThere: cvs-src@freebsd.org
X-Mailman-Version: 2.1.5
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: Fri, 23 Dec 2005 13:05:30 -0000

grehan      2005-12-23 13:05:28 UTC

  FreeBSD src repository

  Modified files:
    sys/powerpc/powerpc  db_trace.c trap_subr.S 
  Log:
  Mark the return address of the call to ast() in the generic trap
  handling code so the stack trace unwinders don't start trying to
  go into user-space.
  
  Found by trying to create core dumps with a KTR_COMPILE/KTR_GEOM
  kernel, which results in a stack_save() call in the ast() coredump
  path - this created a panic, and then calling 'trace' in ddb resulted
  in the black screen of death after printing out most of the backtrace.
  
  Revision  Changes    Path
  1.12      +9 -5      src/sys/powerpc/powerpc/db_trace.c
  1.16      +2 -0      src/sys/powerpc/powerpc/trap_subr.S