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From: John Baldwin <jhb@FreeBSD.org>
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Date: Wed, 2 Jun 2004 15:41:56 -0400
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cc: current@FreeBSD.org
cc: Lukas Ertl <le@FreeBSD.org>
Subject: Re: Kernel stuck on boot after sio0 probe
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On Wednesday 02 June 2004 03:23 pm, Lukas Ertl wrote:
> Hi there,
>
> a new kernel from about three hours ago is stuck at boot after the sio0
> probe:
>
> sio0: configured irq 4 not in bitmap of probed irqs 0
> sio0: port may not be enabled
> sio0 port 0x3f8-0x3ff irq 4 on acpi0
> sio0: type 8250 or not responding
>
> Then nothing, not even on verbose boot.
>
> Usually it would continue with the ppc0 probing stuff:
>
> ppc0 port 0x3bc-0x3c3 irq 7 on acpi0
> ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
> ppbus0: <Parallel port bus> on ppc0
> ppi0: <Parallel I/O> on ppbus0
>
> Last known working kernel is from Fri May 28 11:49:33 CEST.
>
> Any ideas?

Need more of a dmesg.  You can try reverting acpi_pci_link.c's last commit as 
it exposes other bugs that can cause this.

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org