9-Stable panic: resource_list_unreserve: can't find resource

[Andriy Gapon]

on 05/11/2012 16:52 Tom Lislegaard said the following:
> 
> 
>> -----Original Message-----
>> From: Andriy Gapon [mailto:avg at FreeBSD.org]
>> Sent: 5. november 2012 15:21
>> To: Tom Lislegaard
>> Cc: freebsd-stable at FreeBSD.org; freebsd-acpi at FreeBSD.org
>> Subject: Re: 9-Stable panic: resource_list_unreserve: can't find resource
>>
>> on 05/11/2012 15:54 Tom Lislegaard said the following:
>>> Here's the distribution from running devd over 40 minutes
>>>
>>>   589 Processing event '!system=ACPI subsystem=PROCESSOR type=\\_PR_.CPU0 notify=0x81'
>>>   590 Processing event '!system=ACPI subsystem=PROCESSOR type=\\_PR_.CPU1 notify=0x81'
>>>   590 Processing event '!system=ACPI subsystem=PROCESSOR type=\\_PR_.CPU2 notify=0x81'
>>>   590 Processing event '!system=ACPI subsystem=PROCESSOR type=\\_PR_.CPU3 notify=0x81'
>>>   590 Processing event '!system=ACPI subsystem=PROCESSOR type=\\_PR_.CPU4 notify=0x81'
>>>   590 Processing event '!system=ACPI subsystem=PROCESSOR type=\\_PR_.CPU5 notify=0x81'
>>>   590 Processing event '!system=ACPI subsystem=PROCESSOR type=\\_PR_.CPU6 notify=0x81'
>>>   590 Processing event '!system=ACPI subsystem=PROCESSOR type=\\_PR_.CPU7 notify=0x81'
>>>     1 Processing event '!system=DEVFS subsystem=CDEV type=CREATE cdev=dsp4.1'
>>>     1 Processing event '!system=DEVFS subsystem=CDEV type=CREATE cdev=pts/2'
>>>     1 Processing event '!system=DEVFS subsystem=CDEV type=CREATE cdev=vboxdrv0'
>>>     1 Processing event '!system=DEVFS subsystem=CDEV type=DESTROY cdev=dsp4.1'
>>>     1 Processing event '!system=DEVFS subsystem=CDEV type=DESTROY cdev=vboxdrv0'
>>>
>>> Any use in running it over a longer period of time?
>>
>> Very interesting.
>> So the processors get _CST change notifications rather frequently, but there is no obvious
>> source/cause for them...
>>
>> Could you please send to me acpidump -dt output or upload it somewhere and post a link?
> 
> Here you go
> 
> https://dl.dropbox.com/u/13263820/acpidump.txt

So, ACPI platform on your machine sends 0x81 notification for processors objects
each time "_PSR" method of AC Adapter / Power Source device is queried.
There could be a number of reason to invoke the method - either AC line status
queries from userland (some battery / line monitoring program/applet) or internal
ACPI notifications.

Are you willing to go as far as recompiling your kernel with 'options  ACPI_DEBUG'
to get to the bottom of this issue?
If yes, then please do that and also add the following lines to loader.conf:
debug.acpi.layer="ACPI_EVENTS ACPI_AC_ADAPTER"
debug.acpi.level="ACPI_LV_INFO"
I would be interested in all periodically occurring ACPI debug messages (after
boot is finished).

I suspect that the ACPI platform and/or embedded controller send too many
notifications when they are not strictly necessary.
Maybe there is a BIOS update for your machine?

In any case, I am starting to work on a patch that should fix this problem without
resorting to any special configuration.
-- 
Andriy Gapon