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  #1  
Old May 6th, 2010, 10:23
lavator lavator is offline
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Default About "acpi0: reservation of ... failed" message in `dmesg`
Hi,

Our customers are concerned about the following messages in `dmesg` output.

Code:
acpi0: reservation of 0, a0000 (3) failed
acpi0: reservation of 100000, bff00000 (3) failed
The outputs of `dmesg` and `acpidump -dtv` are attached. Please help to clarify this issue.

Or , in other direction, where to find official document to convince our customers that these messages are ignorable ?
Attached Files
File Type: txt dmesg.txt (10.5 KB, 19 views)
File Type: zip acpidump.zip (18.6 KB, 15 views)
Last edited by DutchDaemon; May 6th, 2010 at 14:13. Reason: use [code], not [quote]
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  #2  
Old May 6th, 2010, 12:33
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SirDice SirDice is offline
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Try updating the BIOS of the machine. If that doesn't work you could try updating to -STABLE.
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Old May 7th, 2010, 03:26
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Indeed, i am the BIOS engineer of the system. Our system got no ACPI error on Linux, but it got the above reservation failure message.
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Old May 11th, 2010, 07:46
lavator lavator is offline
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We got answered on http://lists.freebsd.org/ , hence i copy the response here as a conclusion.

According to http://lists.freebsd.org/pipermail/f...ay/006503.html ,

Quote:
It is related to the sysresource acpi memory objects. It means that
something was using the system resource before acpi allocated it. For
#1, that looks like lowmem up to the VGA range. For #2, it looks like
option ROMs.

The BIOS has configured the devices beforehand so as long as everything
works, the msgs can be ignored.
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Old December 14th, 2011, 14:56
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paulfrottawa paulfrottawa is offline
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That would explain this problem I'm having.

Code:
sysctl hw.acpi.thermal.tz0.temperature
sysctl: unknown oid 'hw.acpi.thermal.tz0.temperature'
_______________________________________________

I have the same errors.
Code:
acpi0: reservation of 0, a0000 (3) failed
acpi0: reservation of 100000, 7f700000 (3) failed
Code:
FreeBSD freew 9.0-RC3 FreeBSD 9.0-RC3 #0: Sun Dec  4 08:01:02 UTC 2011     
root@obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
Last edited by DutchDaemon; December 14th, 2011 at 19:25.
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