Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!van-bc!ubc-cs!alberta!access!edm!geoff From: geoff@edm.uucp (Geoff Coleman) Newsgroups: comp.unix.aix Subject: Re: Paging-space problems (Really the /etc/security/limits file) Message-ID: <1990Nov16.172733.9396@edm.uucp> Date: 16 Nov 90 17:27:33 GMT References: <311@cadlab.sublink.ORG> Distribution: comp Organization: Unexsys Systems inc. Lines: 23 From article <311@cadlab.sublink.ORG>, by staff@cadlab.sublink.ORG (Alex Martelli): > > A system-level solution would be best, but I can't find a good one. > I think we now have ALL the documentation IBM supplies, but I don't > see a way there to reserve some amount of resource (paging space) for > the kernel, or for root-owned processes, or whatever. The limits file > allows things like fixing maximum amount of data area PER PROCESS, but > what good will this do me??? I can't predict how many processes WILL > be running when a dangerous situation approaches! Why oh why can't > brk()/sbrk() just REFUSE to expand space to a dangerous situation? But you really should read the man page for the limits file It resides in hardcopy in "Files Reference". It is without a doubt the funniest AIX man page I've found yet. Of 6 paramaters all but fsize are marked as "not used" (so why are they there). So even if data=xxxx would theoretically solve your problem it wouldn't really because the value is ignored. Geoff Coleman > -- > Alex Martelli - CAD.LAB s.p.a., v. Stalingrado 45, Bologna, Italia