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Date:      Mon, 11 Sep 2000 13:18:37 +1100 (EST)
From:      Bruce Evans <bde@zeta.org.au>
To:        Ben Smithurst <ben@FreeBSD.ORG>
Cc:        current@FreeBSD.ORG
Subject:   Re: page fault in sched_ithd
Message-ID:  <Pine.BSF.4.21.0009111312230.401-100000@besplex.bde.org>
In-Reply-To: <20000909210619.F77593@strontium.scientia.demon.co.uk>

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On Sat, 9 Sep 2000, Ben Smithurst wrote:

> After poking around a bit with remote GDB, this seems to be caused by a
> stray IRQ 7, since irq == 7, ir == ithds[irq] == NULL, ir->foo == BOOM.
> 
> The attached rather crude patch has "fixed" the problem for now, but
> does anyone have any suggestions for a real fix?

The stray interrupt handler needs to have a thread, or stray interrupts
need to be handled as traps.  Stray interrupts are more like NMIs than
normal interrupts, and NMIs are already (mis)handled as traps.

Bruce



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