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Date: Fri, 23 Feb 2007 20:11:53 +0100
From: Lukas Ertl <le@freebsd.org>
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To: Kevin Oberman <oberman@es.net>
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Cc: current@freebsd.org
Subject: Re: Update of newbus API broke system
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Kevin Oberman wrote:
> My current system will no longer boot. cvsup today at about 17:30 UTC
> and the new kernel crashes connecting the fdc during the boot
> operation. Looks like the change to the newbus API broke it.

I'm having similar problems here (on a ThinkPad T42p).

I'm loading if_ath and if_em at boot time, and when I plug in my ath0
cardbus card, the kernel panics with a NULL pointer dereference similar
to yours.

If I don't load if_em, or don't plug in the Atheros card, everything
seems to work fine.

Looks to me like a problem with interrupt sharing, since both cbb0 and
em0 are getting attached to irq4.

regards,
le

-- 
Lukas Ertl                         http://mailbox.univie.ac.at/~le/
le@FreeBSD.org                     http://people.freebsd.org/~le/