Date: Fri, 10 May 1996 05:22:21 -0700 From: David Greenman <davidg@Root.COM> To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) Cc: freebsd-current@FreeBSD.org (FreeBSD-current users), nisha@CS.Berkeley.EDU Subject: Re: Max data segment size Message-ID: <199605101222.FAA04291@Root.COM> In-Reply-To: Your message of "Fri, 10 May 1996 09:16:24 %2B0200." <199605100716.JAA23858@uriah.heep.sax.de>
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>As Satoshi Asami wrote: > >> What are the rationales behind this being in a machine-specific system >> header file, in other words, does this mean that I can't increase the >> max data segment size beyond 128MB on an x86? > >Pending other explanations, i believe it's the size of the page tables >(or page table directories?) reserved for these segments. There isn't any problem with increasing these limits as long as you realize that it will allow users to more easily spam the system by consuming all of the swapspace. They could probably do this, anyway, however. ...anyway, there isn't any problem with page tables or anything like that. -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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