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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.mel.connect.com.au!munnari.OZ.AU!news.ecn.uoknor.edu!paladin.american.edu!gatech!news.mathworks.com!fu-berlin.de!zib-berlin.de!news.tu-chemnitz.de!irz401!uriah.heep!news From: j@uriah.heep.sax.de (J Wunsch) Newsgroups: comp.unix.bsd.freebsd.misc,comp.os.linux.development.system Subject: Re: The better (more suitable)Unix?? FreeBSD or Linux Date: 14 Feb 1996 08:29:25 GMT Organization: Private BSD site, Dresden Lines: 23 Message-ID: <4fs6h5$hcg@uriah.heep.sax.de> References: <4er9hp$5ng@orb.direct.ca> <311250C2.2781E494@public.uni-hamburg.de> <strenDM7Gr4.Cn2@netcom.com> <4f27sc$13a@dyson.iquest.net> <4f4c78$dsb@aurora.romoidoy.com> <strenDMBHHo.311@netcom.com> <hpa.31167ef4.I.use.Linux@freya.yggdrasil.com> <4fdupc$e36@news1.wing.net> <4fiq4k$if8@josie.abo.fi> Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) NNTP-Posting-Host: localhost.heep.sax.de Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: knews 0.9.3 Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:14265 comp.os.linux.development.system:17878 mandtbac@news.abo.fi (Mats Andtbacka) writes: > >: mostly because it really turns out that BSD-style synchronous metadata > >: updates are slow and buy you very little in terms of data safety, and > >: can, in fact, be a security hole. > i believe (though i could be wrong) that the argument goes down these > lines: > > - BSD writes metadata synchronously, but data asynch. thus, if the > box goes down while data is not yet written, you end up with files > that seem, to the filesystem, OK, whereas they're really garbage. They always ended up with 0 bytes length for me (or have been trimmed by the auto-fsck to this value). Just an observation, not a serious investigation though. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)