Date: Wed, 2 Sep 1998 09:47:01 +0100 (BST) From: Doug Rabson <dfr@nlsystems.com> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: shimon@simon-shapiro.org, freebsd-alpha@FreeBSD.ORG Subject: Re: Alpha Install - oops! Message-ID: <Pine.BSF.4.01.9809020942320.360-100000@herring.nlsystems.com> In-Reply-To: <13804.2770.473870.7600@grasshopper.cs.duke.edu>
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On Tue, 1 Sep 1998, Andrew Gallatin wrote: > > Simon Shapiro writes: > > > > Andrew Gallatin, On 31-Aug-98 you wrote: > > > > > I think you may have more luck if you power-cycle the box. When I've > > > seen this under NetBSD/alpha, I suspected it was caused by the IDE > > > controller acting as a noise generator, and was able to cure it by > > > disabling the ide controller. > > > > How? > > > > (I think there is a problem we may want to solve here, still) > > > > ... > > Under NetBSD, simply leaving all references to the ide controller out > of the config file did the trick. Under NetBSD, the ide controller > got sort of half-attached -- enough for the isa irq to be enabled, but > no devices on the controller were successfully attached. > > Doug - Does the ISA code disable all/most interrupts at boot time, or > does it leave things as it found them? I'm worried the console > firmware might be leaving the ide ISA irq enabled on Simon's machine. I don't mask out all the ISA interrupts when I initialise the ISA bus. I think that is probably what is going wrong. The current theory is that booting NetBSD first leaves something enabled (probably the irq) which I can't cope with. I'm having trouble testing this idea this morning since I can't seem to get NetBSD work properly. The GENERIC kernel from 1.3F shows the same slow printing effect as Simon had with FreeBSD. -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 951 1891 Fax: +44 181 381 1039 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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