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Date:      Tue, 19 Jul 2011 11:16:07 -0400
From:      John Baldwin <jhb@freebsd.org>
To:        Doug Barton <dougb@freebsd.org>
Cc:        freebsd-current@freebsd.org
Subject:   Re: ichwd0: unable to reserve GCS registers
Message-ID:  <201107191116.07116.jhb@freebsd.org>
In-Reply-To: <4E24B21C.3070402@FreeBSD.org>
References:  <4E23EE49.5040801@FreeBSD.org> <201107181308.14624.jhb@freebsd.org> <4E24B21C.3070402@FreeBSD.org>

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On Monday, July 18, 2011 6:22:20 pm Doug Barton wrote:
> On 07/18/2011 10:08, John Baldwin wrote:
> > On Monday, July 18, 2011 4:26:49 am Doug Barton wrote:
> >> I'm getting this with recent HEAD:
> >>
> >> isab0: found ICH7 or equivalent chipset: Intel ICH7M watchdog timer
> >> ichwd0: <Intel ICH7M watchdog timer> at port 0x1030-0x1037,0x1060-0x107f
> >> on isa0
> >> isab0: found ICH7 or equivalent chipset: Intel ICH7M watchdog timer
> >> pcib0: allocated type 4 (0x1030-0x1037) for rid 0 of ichwd0
> >> pcib0: allocated type 4 (0x1060-0x107f) for rid 1 of ichwd0
> >> ichwd0: unable to reserve GCS registers
> >> device_attach: ichwd0 attach returned 6
> >> pcib0: allocated type 4 (0x2f8-0x2ff) for rid 0 of uart1
> > 
> > Can you get devinfo -r output while booting with 
> > 'debug.acpi.disabled=hostres'?
> 
> I escaped to the loader prompt and type 'set debug..' and then booted.
> The devinfo output is attached.
> 
> Doing the kldload with debug.bootverbose I now get this:
> 
> isab0: found ICH7 or equivalent chipset: Intel ICH7M watchdog timer
> ichwd0: detached
> ichwd0 failed to probe at port 0x1030-0x1037,0x1060-0x107f on isa0
> isab0: found ICH7 or equivalent chipset: Intel ICH7M watchdog timer
> ichwd0: <Intel ICH7M watchdog timer> at port 0x1030-0x1037,0x1060-0x107f
> on isa0
> isab0: found ICH7 or equivalent chipset: Intel ICH7M watchdog timer
> ichwd0: Intel ICH7M watchdog timer (ICH7 or equivalent)
> ichwd0: timer disabled
> ichwd0: timer enabled
> ichwd0: timeout set to 28 ticks
> ichwd0: timer reloaded
> (repeats infinitely)

Hmm, can you get devinfo -r output from a working kernel with ichwd loaded?  
You might be able to just build the kernel with 'nooptions NEW_PCIB'.

-- 
John Baldwin



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