Date: Fri, 3 Jan 2003 05:50:40 +1100 (EST) From: Bruce Evans <bde@zeta.org.au> To: phk@freebsd.org Cc: Jos Backus <jos@catnook.com>, <freebsd-current@freebsd.org> Subject: Re: spec_getpages I/O read failure on md0 Message-ID: <20030103052246.V486-100000@gamplex.bde.org> In-Reply-To: <734.1041511344@critter.freebsd.dk>
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On Thu, 2 Jan 2003 phk@freebsd.org wrote: > In message <20021229152736.N39955-100000@gamplex.bde.org>, Bruce Evans writes: > > > >The md driver doesn't set any of the si_ size parameters so it has no chance > >of getting this stuff right when the parameters are not the defaults. > > It does however set its sectorsize to 4k. The problem was GEOM not > setting si_bsize_phys on the dev_t. The problem must be deeper, since setting it in GEOM doesn't affect the non-GEOM case. GEOM can't set it, since it might be different from the sector size. Stefan Esser reported some ordering and/or cloning problems. GEOM apparently creates an extra device whose si_bsize_phys can't be touched by the md driver. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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