From owner-freebsd-bugs Fri Jun 21 04:31:59 1996 Return-Path: owner-bugs Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id EAA10134 for bugs-outgoing; Fri, 21 Jun 1996 04:31:59 -0700 (PDT) Received: from godzilla.zeta.org.au (godzilla.zeta.org.au [203.2.228.19]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id EAA10114 for ; Fri, 21 Jun 1996 04:31:41 -0700 (PDT) Received: (from bde@localhost) by godzilla.zeta.org.au (8.6.12/8.6.9) id VAA15489; Fri, 21 Jun 1996 21:30:20 +1000 Date: Fri, 21 Jun 1996 21:30:20 +1000 From: Bruce Evans Message-Id: <199606211130.VAA15489@godzilla.zeta.org.au> To: bde@zeta.org.au, j@uriah.heep.sax.de Subject: Re: bin/1320: dump limits blocksize to 32K Cc: davidg@freebsd.org, dyson@freebsd.org, freebsd-bugs@freefall.freebsd.org, gpalmer@freebsd.org, gwk@cray.com Sender: owner-bugs@freebsd.org X-Loop: FreeBSD.org Precedence: bulk >> physio() needs to have a no-split flag that would be set by the tape >> drivers. >I would rather like to see the problem resolved once and for all. >This will however require some ``bounce buffer'' support, at least for >those controllers that can only handle 16 scatter/gather segments >(thus 16 physical pages == 64 KB). There has to be a limit, so the no-split flag is still required. Bruce