Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!paperboy!snorkelwacker.mit.edu!hsdndev!husc6!ngo From: ngo@tammy.harvard.edu (Tom Ngo) Newsgroups: comp.sys.mac.system Subject: Re: Virtual Memory problem Message-ID: Date: 20 May 91 02:17:08 GMT References: <29368@hydra.gatech.EDU> <13704@pasteur.Berkeley.EDU> <1991May19.042323.20895@ux1.cso.uiuc.edu> Sender: news@husc6.harvard.edu Organization: Harvard Chemistry Department Lines: 35 In-reply-to: ml27192@uxa.cso.uiuc.edu's message of 19 May 91 04:23:23 GMT I find that I can get my VM up to 11 megs, but if I push it to 12 or 13 megs my system won't boot properly. Everything proceeds as usual, but when the finder comes up the mouse remains frozen. Now, the person to whose msg I am following up explained that with 24-bit addressing you can address up to 16M, minus 1M per NuBus card. Furthermore, the Memory CDEV is supposed to be able to figure out what your machine's maximum is, given your config. It came up with 13M for my machine. So: (1) Why does the Memory CDEV come up with a 13M limit? (2) Why does my machine crash when I have more than 11M VM? Thanks very very much in advance! Details: CPU: Mac II ci parity NuBus: Radius monochrome B/W display Disk: Rodime 105M (unrecognized by HD SC Setup 7.0, another problem) RAM: 4 M (9-bit, of course) Moues: Kensington Turbo Mouse, WITHOUT Kensington software System: System 7.0 Extensions: SuperClock! 3.9, Teleport 1.06d11, Suitcase II 1.2.9 * When I tried turning on 32-bit addressing, my machine wouldn't even start to boot. Instead, before the smiling Mac Classic it would play the sad chord that is supposed to mean you've lost your boot blocks. -- Tom Ngo ngo@harvard.harvard.edu 617/495-1768 lab number, leave message