From: Jens Axboe <axboe@suse.de>
To: Anton Altaparmakov <aia21@cantab.net>
Cc: Andre Hedrick <andre@linux-ide.org>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: ide double init? + Re: BUG: Current 2.5-BK tree dies on boot!
Date: Thu, 19 Sep 2002 11:45:20 +0200 [thread overview]
Message-ID: <20020919094520.GB31033@suse.de> (raw)
In-Reply-To: <5.1.0.14.2.20020919102432.0438bec0@pop.cus.cam.ac.uk>
On Thu, Sep 19 2002, Anton Altaparmakov wrote:
> At 09:47 19/09/02, Jens Axboe wrote:
> >On Wed, Sep 18 2002, Anton Altaparmakov wrote:
> >> This is without preempt. I tried both with and without SMP, with and
> >without
> >> large TLB pages, with and without pte highmem, all die in the same place.
> >
> >You have highmem, and bouncing does not get correctly enabled on the ide
> >drives. This, in combination with broken bouncing (woops), will probably
> >make it die fairly quickly.
> >
> >I attach two patches, one fixes the bouncing, the other fixes IDE bounce
> >enable.
>
> BK as of this morning already contains the bounce patch, so I only applied
> the IDE bounce enable and it worked fine. - Thanks!
Good
> Note there is something odd wrt IDE initialization. The driver seems to be
> trying to initialize twice and there quite a few messages output which
> don't reflect reality (probably a consequence of the double init). For
> example it says DMA disabled but checking with hdparm and in /proc/ide/via
> DMA is enabled just fine. And it says neither IDE port enabled (BIOS) which
> isn't true either.
Yes you are right, it does seem to try and init twice. Wonder why. I'll
take a look at that.
--
Jens Axboe
next prev parent reply other threads:[~2002-09-19 9:40 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-18 20:44 BUG: Current 2.5-BK tree dies on boot! Anton Altaparmakov
2002-09-18 22:58 ` Anton Blanchard
2002-09-19 8:47 ` Jens Axboe
2002-09-19 9:33 ` ide double init? + " Anton Altaparmakov
2002-09-19 9:45 ` Jens Axboe [this message]
2002-09-19 10:08 ` Jens Axboe
2002-09-19 10:58 ` Alan Cox
2002-09-19 11:14 ` Jens Axboe
2002-09-19 13:28 ` Alan Cox
2002-09-19 13:27 ` Jens Axboe
2002-09-19 17:48 ` Patrick Mochel
2002-09-19 18:02 ` Alan Cox
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