From: Ion Badulescu <ionut@cs.columbia.edu>
To: "Justin T. Gibbs" <gibbs@scsiguy.com>
Cc: Paul Rolland <rol@witbe.net>, linux-kernel@vger.kernel.org
Subject: Re: [2.5.54] Oops IDE-SCSI and failure AIC7xxx
Date: Mon, 6 Jan 2003 16:00:06 -0500 [thread overview]
Message-ID: <200301062100.h06L06V03070@buggy.badula.org> (raw)
In-Reply-To: <418420000.1041781806@aslan.scsiguy.com>
On Sun, 05 Jan 2003 08:50:06 -0700, Justin T. Gibbs <gibbs@scsiguy.com> wrote:
>> Out of this, two problems :
>> - AIC7xxx fails to use DMA, with :
>> aic7xxx: PCI Device 0:8:0 failed memory mapped test. Using PIO.
>> scsi0: PCI error Interrupt at seqaddr = 0x3
>> scsi0: Signaled a Target Abort
>
> This is because your system is violating the PCI spec. There is
> now an explicit test for this during driver initialization so that
> the driver doesn't unexpectedly fail later. I can change the driver
> so that it doesn't print out the diagnostic if it would make you
> feel better. 8-)
The problem with the message is that it makes people think PIO vs DMA
(which matters a lot for e.g. IDE), not PIO vs MMIO which is what it
really is, and doesn't matter nearly as much.
Ion
--
It is better to keep your mouth shut and be thought a fool,
than to open it and remove all doubt.
prev parent reply other threads:[~2003-01-06 20:51 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-05 11:01 Paul Rolland
2003-01-05 15:50 ` Justin T. Gibbs
2003-01-05 15:55 ` Paul Rolland
2003-01-05 16:52 ` Justin T. Gibbs
2003-01-05 19:57 ` Paul Rolland
2003-01-05 20:19 ` Justin T. Gibbs
2003-01-06 0:31 ` J.A. Magallon
2003-01-06 2:43 ` David Lang
2003-01-06 3:08 ` Justin T. Gibbs
2003-01-06 2:59 ` David Lang
2003-01-06 3:29 ` Justin T. Gibbs
2003-01-06 4:36 ` David Lang
2003-01-06 5:00 ` Justin T. Gibbs
2003-01-06 5:13 ` David Lang
2003-01-06 16:18 ` Justin T. Gibbs
2003-01-06 21:00 ` Ion Badulescu [this message]
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