NetBSD Problem Report #21456

Received: (qmail 4822 invoked by uid 605); 5 May 2003 09:24:20 -0000
Message-Id: <200304280901.h3S91CQr026896@shark1.cambridge.arm.com>
Date: Mon, 28 Apr 2003 10:01:12 +0100 (BST)
From: Richard Earnshaw <rearnsha@shark1.cambridge.arm.com>
Sender: gnats-bugs-owner@netbsd.org
Reply-To: rearnsha@shark1.cambridge.arm.com
To: gnats-bugs@gnats.netbsd.org
Subject: New pmap code does not abort low-memory access
X-Send-Pr-Version: 3.95

>Number:         21456
>Category:       port-arm32
>Synopsis:       New pmap code does not abort low-memory access
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    port-arm32-maintainer
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon May 05 09:25:01 +0000 2003
>Closed-Date:    Mon May 05 09:30:47 +0000 2003
>Last-Modified:  Mon May 05 16:08:01 +0000 2003
>Originator:     Richard Earnshaw
>Release:        NetBSD 1.6R (Apr 23, 2003)
>Organization:
ARM
-- 
>Environment:


System: NetBSD shark1.cambridge.arm.com 1.6R NetBSD 1.6R (GENERIC) #0: Wed Apr 23 18:42:18 BST 2003 rearnsha@vpc960.cambridge.arm.com:/work/rearnsha/netbsd/build/shark/src/sys/arch/shark/compile/GENERIC shark
Architecture: arm
Machine: shark
>Description:
	With the new pmap code an access to a low memory address is
	repeatedly restarted when it should be aborted.

>How-To-Repeat:
	Compile and run the following test case.  It should generate either a 
	segmentation fault (space not mapped) or a bus fault (unaligned):

	int *x = (int*) 2;

	main()
	{
	  return x[11];
	}

	instead it spins for ever between user and kernel space.

>Fix:

	Unknown
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: rearnsha 
State-Changed-When: Mon May 5 09:29:40 UTC 2003 
State-Changed-Why:  
duplicate caused by sendmail on my machine changing setup 

From: Allen Briggs <briggs@wasabisystems.com>
To: Richard Earnshaw <rearnsha@shark1.cambridge.arm.com>
Cc: gnats-bugs@gnats.netbsd.org
Subject: Re: port-arm32/21456: New pmap code does not abort low-memory access
Date: Mon, 5 May 2003 12:07:52 -0400

 On Mon, Apr 28, 2003 at 10:01:12AM +0100, Richard Earnshaw wrote:
 > >Number:         21456
 > >Category:       port-arm32
 > >Synopsis:       New pmap code does not abort low-memory access

 Isn't this a dup of port-arm32/21349, reported on 28 Apr, fixed on 28
 Apr, and closed on 29 Apr with your confirmation of it being closed?

 -allen

 -- 
  Allen Briggs                     briggs@wasabisystems.com
  Wasabi Systems, Inc.             http://www.wasabisystems.com/
>Unformatted:

Home	PR Database Search