Subject: Re: strange NMI, apparently from pciide....
To: NetBSD/i386 Discussion List <port-i386@netbsd.org>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: port-i386
Date: 07/04/2001 21:54:37
On Wed, Jul 04, 2001 at 03:03:48PM -0400, Greg A. Woods wrote:
> I've got this P-Pro ATX motherboard (designated P6FX1-A, apparently made
> by Elitegroup Computer Systems of Taiwan).  It has an Intel 440FX PCIset.
> 
> It seems to have trouble probing one of the el-cheapo IDE drives I've
> got attached and at about the time it first accesses wd1 it gets a DMA
> error and an un-specified NMI drops it to the debugger during the boot.
> If I "continue" all is well.
> 
> It's also got ECC memory in it too, and the SIMMs were scounged from the
> junk bin at a local surplus shop, so even though they pass the
> apparently extensive BIOS memory checks I'm not 100% certain of their
> reliability.  There haven't ever been any subsequent NMIs though, and
> I've done package builds using wd1 (and it's run /etc/daily now).
> 
> Is there any way to get more details on this NMI so that I can know for
> sure where it might have come from?  If this NMI is from the IDE
> controller shouldn't it be handled cleanly and not cause a drop to DDB?

The IDE controller isn't supposed to generate NMI. You may have other
problems.

--
Manuel Bouyer <bouyer@antioche.eu.org>
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