From owner-cvs-src@FreeBSD.ORG  Thu Nov  2 11:47:39 2006
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 879A116A403;
	Thu,  2 Nov 2006 11:47:39 +0000 (UTC) (envelope-from kib@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 4545D43D64;
	Thu,  2 Nov 2006 11:47:39 +0000 (GMT) (envelope-from kib@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.13.6/8.13.6) with ESMTP id kA2Bld16036267;
	Thu, 2 Nov 2006 11:47:39 GMT (envelope-from kib@repoman.freebsd.org)
Received: (from kib@localhost)
	by repoman.freebsd.org (8.13.6/8.13.4/Submit) id kA2Bld9Q036266;
	Thu, 2 Nov 2006 11:47:39 GMT (envelope-from kib)
Message-Id: <200611021147.kA2Bld9Q036266@repoman.freebsd.org>
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Thu, 2 Nov 2006 11:47:38 +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/ddb db_command.c
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: Thu, 02 Nov 2006 11:47:39 -0000

kib         2006-11-02 11:47:38 UTC

  FreeBSD src repository

  Modified files:
    sys/ddb              db_command.c 
  Log:
  On trap while inside ddb, the trap handler calls kdb_reenter(), that
  longjmp to the default context. As result, "alltrace" command may
  be prematurely terminated (without error message). This is happens,
  for instance, when system is low on memory and referenced page in
  kernel-mode thread stack is swapped out.
  
  Protect "alltrace" against termination on trap by setting temporary
  kdb_jmpbuf context.
  
  Submitted by:   Peter Holm
  
  Revision  Changes    Path
  1.72      +14 -6     src/sys/ddb/db_command.c