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From: Jens Axboe <axboe@suse.de>
To: Dave Olien <dmo@osdl.org>
Cc: Daniel Phillips <phillips@arcor.de>,
	Samium Gromoff <_deepfire@mail.ru>,
	linux-kernel@vger.kernel.org
Subject: Re: [2.5] DAC960
Date: Fri, 20 Sep 2002 08:20:13 +0200	[thread overview]
Message-ID: <20020920062013.GD3990@suse.de> (raw)
In-Reply-To: <20020919142505.B27767@acpi.pdx.osdl.net>

On Thu, Sep 19 2002, Dave Olien wrote:
> 
> Daniel
> 
> Here's my latest progress on my changes to the DAC960 driver.
> 
> I spent Tuesday banging my head trying to figure out why data blocks
> written to disk to SOMETIMES were read back with DIFFERENT data.
> On wednesday, I changed from using Linux 2.5.34 to using Linux 2.5.36.
> My bad data problem went away with that change.  There must have been
> an important change in the 2.5.36 BIO code.

Neither 2.5.35 nor 2.5.36 has any critical bio fixes, so I would look
into this a bit more if I were you. Only if you were using
bio_kmap_irq() would there be something to look for, but DAC960 is not.
That was 2.5.35. 2.5.36 just starts sizing bio_vec pools based on free
memory, no bug fixes. Likewise in the block layer, I'm not seeing
anything.

-- 
Jens Axboe


  reply	other threads:[~2002-09-20  6:15 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-10  5:30 Samium Gromoff
2002-09-10  6:20 ` Jens Axboe
2002-09-10 16:16   ` Dave Olien
2002-09-15  4:21   ` Daniel Phillips
2002-09-15 13:19     ` Jens Axboe
2002-09-15 15:23       ` Daniel Phillips
2002-09-15 16:18         ` Daniel Phillips
2002-09-16 20:13       ` Dave Olien
2002-09-16 20:26         ` Daniel Phillips
2002-09-16 22:08           ` Dave Olien
2002-09-16 22:25             ` Dave Olien
2002-09-19 18:49           ` Dave Olien
2002-09-19 19:16             ` Daniel Phillips
2002-09-19 22:09               ` Dave Olien
2002-09-19 22:21                 ` Daniel Phillips
2002-09-20  6:21                   ` Jens Axboe
2002-09-20 21:32                 ` Daniel Phillips
2002-09-19 21:25           ` Dave Olien
2002-09-20  6:20             ` Jens Axboe [this message]
2002-09-15 15:14     ` Alan Cox
2002-09-15 16:20       ` Daniel Phillips
2002-09-18 16:17 James Bottomley
2002-09-18 16:40 ` Daniel Phillips
2002-09-23 19:23 Dave Olien

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