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From: Nate Williams <nate@yogotech.com>
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Date: Fri, 24 Aug 2001 10:45:43 -0600
To: Warner Losh <imp@harmony.village.org>
Cc: nate@yogotech.com (Nate Williams), Ted Faber <faber@ISI.EDU>,
	Kevin Oberman <oberman@es.net>,
	Michael Collette <metrol@earthlink.net>,
	FreeBSD <freebsd-mobile@FreeBSD.ORG>,
	FreeBSD <freebsd-stable@FreeBSD.ORG>
Subject: Re: IRQ Problems with Stable 
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> : > OK.  I have a fix that might work.  But I think this fix will correct
> : > a different problem (the hanging on boot on Thinkpad laptops with
> : > hw.pcic_init_routing=1).
> : 
> : No joy on my ThinkPad.  It now hangs at bootup after applying this patch
> : and setting the variable 'hw.pcic.init_routing' to 1 in
> : /boot/loader.conf.
> : 
> : Is there an easy way of 'unsetting' the variable now?
> 
> Yes.  break into the boot process, type unset hw.pcic.init_routing or
> set hw.pcic.init_routing=0.

This won't get over-ridden by the setting of the variable in
/boot/loader.conf again, will it.

> I think that I understand why this didn't work, but don't understand
> what would.  Maybe leaving things alone is the right idea.  Turning on
> PCI interrupts vs ISA interrupts is done in register 3E..

The existing init_routing = 0 seems to work fine. :) :) :) :)




Nate

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