Date: Thu, 5 Sep 1996 14:38:34 -0700 (MST) From: Terry Lambert <terry@lambert.org> To: smp@csn.net (Steve Passe) Cc: terry@lambert.org, rv@groa.uct.ac.za, smp@freebsd.org Subject: Re: SMP on Intel XXpress Message-ID: <199609052138.OAA09991@phaeton.artisoft.com> In-Reply-To: <199609052009.OAA27675@clem.systemsix.com> from "Steve Passe" at Sep 5, 96 02:09:03 pm
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> b4 the "sysctl kern.smp_active=2" the 2nd CPU is running a busy loop > in mp_begin, polling smp_active. at this point in time it has the EI > bit OFF, ie 'cli', but all the other setup has been done, ie it is in > protected mode, paging, etc. > > after the "sysctl kern.smp_active=2" the 2nd CPU calls secondary_main() > which merely prints an info message, then calls cpu_switch(), from which > it never returns (thats a good thing, it shouldn't). but from this point > on we have the INT loss problem. > > I'm totally confused... Ugh. Below that is the scheduler, and I have been hiding from the scheduler. I'm afraid I'm not going to be much help here. Poul is the guy for where you are at... Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
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