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Date:      Thu, 2 Sep 2004 09:42:51 -0700
From:      Marcel Moolenaar <marcel@xcllnt.net>
To:        Joerg Pulz <Joerg.Pulz@frm2.tum.de>
Cc:        freebsd-ia64@freebsd.org
Subject:   Re: another 5.3-BETA2 problem
Message-ID:  <20040902164251.GA13435@dhcp53.pn.xcllnt.net>
In-Reply-To: <20040902174321.V50481@hades.admin.frm2>
References:  <20040901131932.O50481@hades.admin.frm2> <20040901151653.GA9238@dhcp53.pn.xcllnt.net> <20040901184520.V50481@hades.admin.frm2> <20040901204745.GA10115@dhcp53.pn.xcllnt.net> <20040902174321.V50481@hades.admin.frm2>

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On Thu, Sep 02, 2004 at 06:14:58PM +0200, Joerg Pulz wrote:
> 
> >Can you try setting the hw.ata.ata_dma tunable to 0 in the loader
> >before booting the kernel. Like:
> >
> >	OK set hw.ata.ata_dma=0
> >	OK boot
> >
> >This currently required on sparc64 and we may also need it on ia64.
> 
> i tried this and it seems to work.

Thanks, that's good to know.

> i can remember that the latest snapshot (20040810) you provided was 
> working without setting hw.ata.ata_dma=0, so the source of this problem 
> could be in the latest changes to the ata subsystem 2-3 weeks ago.

Yes, that's correct. A fix is being worked on...

> the system as it currently is but i surely will connect some external 
> disks to an "Adaptec SCSI Raid 2200S" using the aac(4) driver. Maybe it 
> would be a good idea to replace the definitely not working asr(4) with 
> aac(4) in GENERIC.

Yes. asr(4) has already been removed on HEAD. I think it makes sense to
remove it from the RELENG_5 branch as well. I don't know if aac(4) works
on ia64, though.

> but anyway, i also tried to install the system onto a SCSI disk connected 
> to a "Tekram DC-390U2W" controller to check if an installation would be 
> possible. the kernel recognized the controller correctly as 'sym0'. the 
> connected disk was also found and registered as 'da0'. but unfortunately 
> sysinstall complains about no disk to install the system.

If the disk contains a valid MBR, then it's currently rejected. The point
of which is that we would destroy the disk otherwise. Try if clobbering
the first sector on the disk makes a difference.

FYI,

-- 
 Marcel Moolenaar	  USPA: A-39004		 marcel@xcllnt.net



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