Date: Tue, 23 Oct 2018 08:30:09 -0700 From: Enji Cooper <yaneurabeya@gmail.com> To: Josh Paetzel <josh@tcbug.org> Cc: Brooks Davis <brooks@freebsd.org>, Rick Macklem <rmacklem@uoguelph.ca>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: which way to update export_args structure? Message-ID: <5BE9C124-9EA0-4B5D-BE0F-7A1F6C727250@gmail.com> In-Reply-To: <1540226963.490541.1550623304.5D6A95A6@webmail.messagingengine.com> References: <YTOPR0101MB182021549F8CF8277477A4C5DDE90@YTOPR0101MB1820.CANPRD01.PROD.OUTLOOK.COM> <20181003155133.GA57729@spindle.one-eyed-alien.net> <YTOPR0101MB18207FF98DED0232B9BB1B4FDDE50@YTOPR0101MB1820.CANPRD01.PROD.OUTLOOK.COM> <20181008170428.GB9766@spindle.one-eyed-alien.net> <YTOPR0101MB11626B32F73B520FBDA3C633DDFA0@YTOPR0101MB1162.CANPRD01.PROD.OUTLOOK.COM> <20181022160508.GB45769@spindle.one-eyed-alien.net> <1540226963.490541.1550623304.5D6A95A6@webmail.messagingengine.com>
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> On Oct 22, 2018, at 09:49, Josh Paetzel <josh@tcbug.org> wrote: > > > >> On Mon, Oct 22, 2018, at 11:05 AM, Brooks Davis wrote: >> >> >> This is the direction I'd been thinking. FWIW, the usecase is more that >> once you've moved away from the struct it's easy to make incremental >> changes then to use a 32-bit mountd on a 64-bit kernel. Moving toward >> size-independent interfaces helps both causes though. >> >> -- Brooks >> Email had 1 attachment: >> + signature.asc >> 1k (application/pgp-signature) > > > Brooks, > > What is the benefit or usecase for running a 32 bit mountd on a 64 bit kernel? There generally isn’t a case for doing this, but running a 32-bit mountd in a 32-bit chroot can allow someone with a working 32-bit environment at a company (for instance) to rebuild environments which rely on NFS mounts and the like. This is an esoteric usecase, but I’ve seen it used before (and I’ve used it myself ;)..). I don’t think this niche usecase should hinder forward progress in terms of modernizing the base OS though. Biarch usecases are diminishing over time. -Enjihelp
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