From owner-freebsd-alpha@FreeBSD.ORG  Tue May 24 17:20:04 2005
Return-Path: <owner-freebsd-alpha@FreeBSD.ORG>
X-Original-To: freebsd-alpha@hub.freebsd.org
Delivered-To: freebsd-alpha@hub.freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id AE4A716A41C
	for <freebsd-alpha@hub.freebsd.org>;
	Tue, 24 May 2005 17:20:04 +0000 (GMT)
	(envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 8F6D143D4C
	for <freebsd-alpha@hub.freebsd.org>;
	Tue, 24 May 2005 17:20:04 +0000 (GMT)
	(envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1])
	by freefall.freebsd.org (8.13.3/8.13.3) with ESMTP id j4OHK4PL090619
	for <freebsd-alpha@freefall.freebsd.org>; Tue, 24 May 2005 17:20:04 GMT
	(envelope-from gnats@freefall.freebsd.org)
Received: (from gnats@localhost)
	by freefall.freebsd.org (8.13.3/8.13.1/Submit) id j4OHK4S4090618;
	Tue, 24 May 2005 17:20:04 GMT (envelope-from gnats)
Date: Tue, 24 May 2005 17:20:04 GMT
Message-Id: <200505241720.j4OHK4S4090618@freefall.freebsd.org>
To: freebsd-alpha@FreeBSD.org
From: Sten Spans <sten@blinkenlights.nl>
Cc: 
Subject: Re: alpha/30486: AlphaServer DS10 floppy access is broken
X-BeenThere: freebsd-alpha@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
Reply-To: Sten Spans <sten@blinkenlights.nl>
List-Id: Porting FreeBSD to the Alpha <freebsd-alpha.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-alpha>,
	<mailto:freebsd-alpha-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-alpha>
List-Post: <mailto:freebsd-alpha@freebsd.org>
List-Help: <mailto:freebsd-alpha-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-alpha>,
	<mailto:freebsd-alpha-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 24 May 2005 17:20:04 -0000

The following reply was made to PR alpha/30486; it has been noted by GNATS.

From: Sten Spans <sten@blinkenlights.nl>
To: Wilko Bulte <wb@freebie.xs4all.nl>
Cc: bug-followup@FreeBSD.ORG, wilko@FreeBSD.ORG
Subject: Re: alpha/30486: AlphaServer DS10 floppy access is broken
Date: Tue, 24 May 2005 19:11:46 +0200 (CEST)

 On Tue, 24 May 2005, Wilko Bulte wrote:
 
 > On Tue, May 24, 2005 at 09:18:51AM +0200, Sten Spans wrote..
 >>
 >> On 6-Current accessing a floppy drive in a DS10
 >> causes a kernel crash. Sadly things seem to have
 >> deteriorated.
 >>
 >> I'll update the pr with a proper backtrace this evening.
 >>
 
 fatal kernel trap:
 
      trap entry     = 0x2 (memory management fault)
      faulting va    = 0x0
      type           = access violation
      cause          = store instruction
      pc             = 0xfffffc00005e82c0
      ra             = 0xfffffc0000600634
      sp             = 0xfffffe001a5a5b50
      curthread      = 0xfffffc003eae2a80
          pid = 7, comm = fdc0
 
 [thread pid 7 tid 100026 ]
 Stopped at      bus_dmamap_load+0x80:   stq     t0,0(t1) <0x0>  <t0=0x800000,t1=0x0>
 db> trace
 Tracing pid 7 tid 100026 td 0xfffffc003eae2a80
 bus_dmamap_load() at bus_dmamap_load+0x80
 isa_dmastart() at isa_dmastart+0x124
 fdc_worker() at fdc_worker+0xc80
 fdc_thread() at fdc_thread+0x88
 fork_exit() at fork_exit+0xf0
 exception_return() at exception_return
 --- root of call graph ---
 db>
 
 
 -- 
 Sten Spans
 
 "There is a crack in everything, that's how the light gets in."
 Leonard Cohen - Anthem