Date: Tue, 4 Jun 1996 21:42:41 -0500 (EST) From: "John S. Dyson" <toor@dyson.iquest.net> To: terry@lambert.org (Terry Lambert) Cc: james@miller.cs.uwm.edu, terry@lambert.org, FreeBSD-current@FreeBSD.org, fcurrent@jraynard.demon.co.uk, grog@lemis.de Subject: Re: Vm fixes NG Message-ID: <199606050242.VAA02177@dyson.iquest.net> In-Reply-To: <199606050047.RAA27881@phaeton.artisoft.com> from "Terry Lambert" at Jun 4, 96 05:47:51 pm
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This discussion of trying to solve the problem of a GUI leaving the console in a state that the kernel doesn't know how to change during a system crash is interesting. There is a potential solution (hack) that I don't remember being mentioned. HACK ALERT!!!: Specify a callback into user space -- wired specially, with a special system call, that the kernel (syscons, pcvt, etc) can call in the case of a crash to fix the problem. To make it easiest on the kernel VM people, it would be nice if it would be a self-contained module and PIC. We don't support user space ISRs (yet), but this isn't very different from an user space ISR. Just a thought. John
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