From owner-freebsd-geom@FreeBSD.ORG  Thu Dec 30 19:55:40 2004
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To: des@des.no (=?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?=)
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Thu, 30 Dec 2004 20:45:22 +0100."
             <xzpoegbvact.fsf@dwp.des.no> 
Date: Thu, 30 Dec 2004 20:55:35 +0100
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cc: geom@freebsd.org
Subject: Re: GEOM_VOL panics when audio CD is present 
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In message <xzpoegbvact.fsf@dwp.des.no>, =?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?=
 writes:
>"Poul-Henning Kamp" <phk@phk.freebsd.dk> writes:
>> I think the right check is to make sure the sectorsize is a power
>> of two && > DEV_BSIZE.
>
>Not good enough.  The panic will still be triggered by providers with
>a sector size larger than 8192 (which is the smallest non-zero offset
>g_vol_ffs_taste() tries to use).  The fact that no such devices exist
>today does not mean they won't exist at some point in the not-so-
>distant future.

You're right, we need to check for that too.

They could exist with gbde btw.



-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.