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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!spool.mu.edu!howland.reston.ans.net!swrinde!newsfeed.internetmci.com!hunter.premier.net!news-res.gsl.net!news.gsl.net!news.mathworks.com!fu-berlin.de!irz401!orion.sax.de!uriah.heep!news From: j@uriah.heep.sax.de (J Wunsch) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: User PPP connection is s......l......o.......w......! Date: 16 Jul 1996 11:36:36 GMT Organization: Private BSD site, Dresden Lines: 20 Message-ID: <4sfus4$meq@uriah.heep.sax.de> References: <01bb6e37.014cfd20$38673fcb@simonh.addease.com.au> <4s1g7h$fr@anorak.coverform.lan> <4s3ul6$h0c@godzilla.zeta.org.au> <4scjps$92@anorak.coverform.lan> 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 0.9.6 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E brian@awfulhak.demon.co.uk (Brian Somers) wrote: > Does this mean that FreeBSD allows the interrupt handler to get > preempted ? If so, I'm *very* impressed. Or is it a FreeBSD > standard that says that interrupt handlers need as many preemption > points as possible ? Why "preemption points"? If i read Bruce's posting right, they are being preempted without any influence by the driver writer. Of course, they run at their IPL, so they will only be preempted by higher priorized interrupts. (Actually, interrupts of another class.) -- 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. ;-)