Date: Wed, 24 Oct 2007 23:59:24 +0100 From: Tom Judge <tom@tomjudge.com> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-mobile@freebsd.org Subject: Re: ACPI Attach (acpi_ibm) stops mouse from working Message-ID: <471FCE4C.70303@tomjudge.com> In-Reply-To: <200710232328.18947.jhb@freebsd.org> References: <471CCA24.4080400@tomjudge.com> <200710232328.18947.jhb@freebsd.org>
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John Baldwin wrote:
> On Monday 22 October 2007 12:04:52 pm Tom Judge wrote:
>> Hi,
>>
>>
>> I have recently setup an IBM/Lenovo T43 with RELENG_7 as of mid last
>> week, however I have a problem with the acpi_ibm module.
>>
>> If I add acpi_ibm_load="YES" to loader.conf I get the following message
>> during boot:
>>
>> psm0: unable to allocate IRQ
>>
>> This is followed by a message stating that the acpi_ibm module has
>> attached to IRQ 12.
>>
>> If I remove this module from loader.conf and boot the system the mouse
>> attaches and works as expected. If I then kldload acpi_ibm the module
>> attaches to acpi0.
>>
>>
>> Is there any way to make this work without loading the acpi module after
>> boot?
>
> Can you provide your acpidump as well as devinfo -rv output from both cases?
> (i.e. when it is loaded at boot and when it is kldloaded after boot)
>
Hi,
After spending many hours trying to reproduce this I have narrowed it
down to the order in which the modules are loaded (and by nature listed
in /boot/loader.conf). It seems that the psm will only attach when
acpi_ibm is listed at the end of loader.conf.
I have run a sequence of tests and gathered the following data
acpidump -dt
devinfo -rv
/var/run/dmesg.boot
Kernel config (T43)
The file names are in the format {data}-{acpi_ibm_load line number in
loader.conf}-{good=psm attached/bad=psm failed to attach}
The files are avaliable here: http://www.tomjudge.com/tmp/debug.tgz
If you want any more information please let me know.
Tom J
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