Date: Mon, 29 Jun 1998 19:08:42 +0900 (JST) From: Michael Hancock <michaelh@cet.co.jp> To: Cejka Rudolf <xcejka00@dcse.fee.vutbr.cz> Cc: freebsd-fs@FreeBSD.ORG, johnh@isi.edu Subject: Re: Stackable filesystems and SunOS Message-ID: <Pine.SV4.3.95.980629185909.1041D-100000@parkplace.cet.co.jp> In-Reply-To: <199806250845.IAA20990@sts.dcse.fee.vutbr.cz>
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On Thu, 25 Jun 1998, Cejka Rudolf wrote: > Heh. > > There _is_ basic small compression layer for FreeBSD 3.0. I made it. > You can look at http://www.stud.fee.vutbr.cz/~xcejka00/dp_cejka.tar.gz > _BUT_: Cool!!! > * Sorry, it is in czech - my english capabilities are not sufficient > and I have no time to make czech -> english conversions. But program > part (comments) is in english. > > * My layer is totally unusable at this time because it is builded on > nullfs basis and nullfs & FreeBSD 3.0 kernel is broken... (kern/6465). We have name-object coherency problems when using layering. We don't address these issues at the moment. I think Tor Egge had some patches that might fix the specific case of nullfs, but a general solution will require some work. > * It needs too much further work to make it good... > > > - structuring CD-ROM file systems as a set of layers > > (I don't know how hard this would be...) Regards, Mike Hancock To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message
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