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Date:      Wed, 6 Jan 2010 15:54:33 -0500
From:      John Baldwin <jhb@freebsd.org>
To:        Joerg Wunsch <joerg_wunsch@uriah.heep.sax.de>
Cc:        freebsd-acpi@freebsd.org
Subject:   Re: FreeBSD 8.0 hangs on boot with ACPI enabled
Message-ID:  <201001061554.33326.jhb@freebsd.org>
In-Reply-To: <20100106193915.GE1616@uriah.heep.sax.de>
References:  <20091230082556.GD1637@uriah.heep.sax.de> <201001061343.16098.jhb@freebsd.org> <20100106193915.GE1616@uriah.heep.sax.de>

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On Wednesday 06 January 2010 2:39:15 pm Joerg Wunsch wrote:
> As John Baldwin wrote:
> 
> > > Are you interested in the devinfo -ur output from the FreeBSD 6.2
> > > boot CD-ROM?  [...]
> 
> > Yes, I want to see what resources ACPI thinks the system resource
> > devices should be using.
> 
> OK, here we go.  I only now noticed that even FreeBSD 6.2 wasn't that
> successful as I believed initially: the ahc0 driver initialization
> aborts, so it doesn't find any disk.  It's just that it doesn't hang
> hard, so I could at least continue booting from the (ATAPI) CD-ROM to
> run the command.

Can you build a kernel with DDB and break into the debugger once it is hung 
and run 'show intrcnt'?

-- 
John Baldwin



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