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Path: sserve!manuel!munnari.oz.au!mips!mips!swrinde!cs.utexas.edu!uunet!mcsun!Germany.EU.net!unido!adagio!grog From: grog@adagio.UUCP (Greg Lehey) Newsgroups: comp.unix.bsd Subject: Re: BSDI/386 on a portable Message-ID: <1792@adagio.UUCP> Date: 19 Jun 92 08:06:12 GMT References: <scs.708621975@hela.iti.org> <1788@adagio.UUCP> <1992Jun17.225258.16694@pegasus.com> Organization: LEMIS, Schellnhausen 2, W-6324 Feldatal, Germany Lines: 23 In article <1992Jun17.225258.16694@pegasus.com> richard@pegasus.com (Richard Foulk) writes: >> >>when >>running DOS, you can set a machine option which maintains the memory >>contents while powered down. When you turn it back on, hey, presto!, >>you're just where you were when you left off. On BSDI, it panics when >>powering down, but doesn't overwrite the disk. > >There are certainly other reasons why unix won't tolerate being `put to >sleep' like this. Not the least of which is ... what time is it once >you wake the kernel back up? Whatever time is stored in the hardware clock. What is missing is, of course, the code to handle this. I assume that there is a power-down interrupt, and that that is what is causing the panic. Presumably the intention is to save some information in non-volatile RAM, where the boot can find it and act accordingly. I'm sure it can be done, though there's not much point with an old machine like the 3100SX. -- ------------------------------------------------------------------------------- Greg Lehey | Tel: +49-6637-1488 LEMIS | Fax: +49-6637-1489 *** NOTE ***: Headers are mangled - reply to grog%lemis@Germany.EU.net