From: Jens Axboe <axboe@suse.de>
To: Pat LaVarre <p.lavarre@ieee.org>
Cc: dougg@torque.net, linux-scsi@vger.kernel.org
Subject: Re: sense visible despite ide-floppy in 2.6 maybe
Date: Fri, 11 Jun 2004 11:30:28 +0200 [thread overview]
Message-ID: <20040611093027.GW13836@suse.de> (raw)
In-Reply-To: <1086823857.5997.124.camel@patibmrh9>
On Wed, Jun 09 2004, Pat LaVarre wrote:
> Jens A:
>
> > > a) ...
> > > ...
> > > e) ...
> > ...
> > f) issue some command that transfers data as well.
>
> I tried an op x12 (18) Inquiry for up to x24 (36) bytes.
>
> I got back zeroes even when I memset my data originally to equal
> catenated copies of "\xAE" (174).
>
> Under such provocations, dmesg then consistently reports:
>
> hdd: The disk reports a capacity of 250640384 bytes, but the drive only handles 250609664
> hdd: unknown partition table
> hdd: leftover data in idefloppy_input_buffers, bcount == 36
Ah that's a good hint. Can you try changing the pc->buffer = NULL in
idefloppy_blockpc_cmd() to pc->buffer = rq->data? Also, only set
PC_DMA_RECOMMENDED if it isn't set. Something ala
pc->buffer = rq->data;
if (rq->bio)
set_bit(PC_DMA_RECOMMENDED, &pc->flags);
that should work, I think. Do this on top of the patch you are already
using.
--
Jens Axboe
next prev parent reply other threads:[~2004-06-11 9:30 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-08 15:53 sense visible despite ide-floppy in 2.6 maybe Pat LaVarre
2004-06-09 8:00 ` Jens Axboe
2004-06-09 8:20 ` Jens Axboe
2004-06-09 16:22 ` Pat LaVarre
2004-06-09 17:37 ` Jens Axboe
2004-06-09 18:29 ` Pat LaVarre
2004-06-09 18:51 ` Pat LaVarre
2004-06-09 23:30 ` Pat LaVarre
2004-06-11 9:30 ` Jens Axboe [this message]
2004-06-11 9:38 ` Jens Axboe
2004-06-13 18:48 ` Pat LaVarre
2004-06-13 19:58 ` Jens Axboe
2004-06-11 9:24 ` Jens Axboe
2004-06-11 9:24 ` Jens Axboe
2004-06-11 0:23 ` Douglas Gilbert
2004-06-11 2:08 ` Willem Riede
2004-06-13 18:21 ` Pat LaVarre
2004-06-13 19:06 ` Pat LaVarre
2004-06-14 6:39 ` Douglas Gilbert
2004-06-13 20:00 ` Jens Axboe
2004-06-17 19:03 ` Pat LaVarre
2004-06-17 19:12 ` Jens Axboe
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