From owner-freebsd-geom@FreeBSD.ORG  Tue Aug 18 07:56:47 2009
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To: Lev Serebryakov <lev@serebryakov.spb.ru>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Tue, 18 Aug 2009 11:38:33 +0400."
	<852978746.20090818113833@serebryakov.spb.ru> 
Date: Tue, 18 Aug 2009 07:41:02 +0000
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Cc: freebsd-geom@freebsd.org
Subject: Re: Difference between FreeBSD-7 and FreeBSD-8 in tasting? 
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In message <852978746.20090818113833@serebryakov.spb.ru>, Lev Serebryakov write
s:

>  I've found problem. geom_raid5 check cp->provider->sectorsize before
>g_access() call, and on boot it is zero before g_access() and 512
>(which is proper value) after this call.

This is a bug in geom_raid5:

The sectorsize and mediasize are only valid if you hold a proper access
to the provider.

-- 
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.