Date: Wed, 04 Feb 1998 02:13:19 -0700 From: Steve Passe <smp@csn.net> To: freebsd-hackers@FreeBSD.ORG Subject: NMIs Message-ID: <199802040913.CAA26219@Ilsa.StevesCafe.com>
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Hi, I discovered that you only get ONE NMI from a switch attached to IOCHK#. This fisrt NMI will trap to the debugger, but additional pushes of the swith have no effect. Reading the PIIX datasheet it appears that the NMI ISR must manipulate ports 0x61 & 0x70, but the description contradicts itself... Does anyone know the specific routine to re-enable the NMI once it has been called via IOCHK? -- Steve Passe | powered by smp@csn.net | Symmetric MultiProcessor FreeBSD
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