Date: Sun, 29 Aug 1999 08:10:02 -0700 (PDT) From: Steve Price <sprice@hiwaay.net> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/12450: IBM -DTTA-351010 corrupts data when using DMA 32-bit & multi-block i/o (fwd) Message-ID: <199908291510.IAA71129@freefall.freebsd.org>
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The following reply was made to PR kern/12450; it has been noted by GNATS.
From: Steve Price <sprice@hiwaay.net>
To: freebsd-gnats-submit@freebsd.org
Cc:
Subject: Re: kern/12450: IBM -DTTA-351010 corrupts data when using DMA 32-bit
& multi-block i/o (fwd)
Date: Sun, 29 Aug 1999 09:59:50 -0500 (CDT)
---------- Forwarded message ----------
Date: Tue, 20 Jul 1999 22:45:58 +0200 (CEST)
From: Peter Hakanson <peter@netman.se>
To: gnats-admin@FreeBSD.org, freebsd-bugs@FreeBSD.org
Cc: peter@gbg.netman.se
Subject: Re: kern/12450: IBM -DTTA-351010 corrupts data when using DMA 32-bit &
multi-block i/o
Dear "gnats",
my problem is solved, it might be interesting for you to know the
cause :
The board i use (chaintech 5AGM2) has 2 possible "system frequencys"
for Cyrix-MII, 66 X 3.5 and 75 X 3
When using 75mhz the ibm disk cannot use DMA, it will
corrupt data. Quantum does work however.
When switching to 66 X 3.5 both IBM and quantum works ok.
For the record, i use FreeBSD 3.1-RELEASE
the disk(s) involved are :
QUANTUM FIREBALL SE3.2A
QUANTUM FIREBALL CR4.3A
IBM-DTTA-351010
On Tue, 29 Jun 1999 gnats-admin@FreeBSD.org wrote:
> Thank you very much for your problem report.
> It has the internal identification `kern/12450'.
> The individual assigned to look at your
> report is: freebsd-bugs.
>
> >Category: kern
> >Responsible: freebsd-bugs
> >Synopsis: IBM -DTTA-351010 corrupts data when using DMA 32-bit & multi-block i/o
> >Arrival-Date: Tue Jun 29 09:30:00 PDT 1999
>
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