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Date:      Thu, 21 Dec 2006 01:01:05 +0800
From:      "Rong-en Fan" <grafan@gmail.com>
To:        "Scott Long" <scottl@samsco.org>
Cc:        FreeBSD Current <freebsd-current@freebsd.org>, mjacob@freebsd.org
Subject:   Re: bigdisk and scsi_da
Message-ID:  <6eb82e0612200901i7a95ad49sd5b0ea66db72939b@mail.gmail.com>
In-Reply-To: <458955F0.4020102@samsco.org>
References:  <6eb82e0612181734n92e4a95l9d54aeb1edae87d1@mail.gmail.com> <4589518C.3070507@samsco.org> <6eb82e0612200716x4fcf6960t3c5fe5cab5fd0bcf@mail.gmail.com> <458955F0.4020102@samsco.org>

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On 12/20/06, Scott Long <scottl@samsco.org> wrote:
> Rong-en Fan wrote:
> > On 12/20/06, Scott Long <scottl@samsco.org> wrote:
> >> Rong-en Fan wrote:
> >> > It seems to me that scsi_da.c reports the wrong size:
> >> >
> >> > da1 at mpt0 bus 0 target 0 lun 0
> >> > da1: <SILVER TN-6212S-U4D 347G> Fixed Direct Access SCSI-5 device
> >> > da1: 320.000MB/s transfers (160.000MHz, offset 127, 16bit), Tagged
> >> > Queueing Enabled
> >> > da1: 0MB (1 0 byte sectors: 0H 0S/T 0C)
> >> >
> >> > While geom shows the right one:
> >> >
> >> > Geom name: da1
> >> > Providers:
> >> > 1. Name: da1
> >> >   Mediasize: 4991221760000 (4.5T)
> >> >   Sectorsize: 512
> >> >   Mode: r0w0e0
> >> >   fwsectors: 63
> >> >   fwheads: 255
> >> >
> >> > Speaking of bigdisk, can gpt modify on-disk table on-fly?
> >> >
> >> > Regards,
> >> > Rong-En Fan
> >>
> >> Just for reference, what version of FreeBSD is this?
> >
> > Ah, it's a 6.2-RC1.  I thought I posted to stable@...
> >
>
> Ok, it makes a whole lot more sense now.  7-CURRENT has checks to
> prevent the divide-by-zero.  I'm still looking into the actual
> bug, though.

OK. Manually backports rev 1.10 of sys/dev/cam/cam.c solved this
divided by zero problem. Could you or mjacob MFC this to RELENG_6
and/or RELENG_6_2?

Thanks,
Rong-En Fan

>
> Scott
>
>



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