Bug 43601 - ACPI Warning: Incorrect Checksum in Table [TAMG]
Summary: ACPI Warning: Incorrect Checksum in Table [TAMG]
Status: CLOSED INSUFFICIENT_DATA
Alias: None
Product: ACPI
Classification: Unclassified
Component: BIOS (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Lv Zheng
URL:
Keywords:
: 43611 (view as bug list)
Depends on:
Blocks:
 
Reported: 2012-06-19 22:46 UTC by Jesús
Modified: 2013-07-22 11:10 UTC (History)
5 users (show)

See Also:
Kernel Version:
Subsystem:
Regression: No
Bisected commit-id:


Attachments
acpidump for Gigabyte motherboard (144.39 KB, text/plain)
2012-07-17 09:07 UTC, Mike Bonar
Details
acpidump - Gigabyte GA-P55A-UD5 rev 1.0 (151.61 KB, text/plain)
2013-07-22 11:09 UTC, Erminio Ottone
Details

Description Jesús 2012-06-19 22:46:42 UTC
Hi, I have a problem with my computer,I have a GA-880GMA-USB3(rev. 3.1)motherboard and AMD FX-8150 processor.

When I try to install ubuntu, I was getting following message before the boot process would freeze: ACPI Warning: Incorrect Checksum in Table [TAMG] 0xD2, should be 0xD1 -(20110623/tbutils-314) .

I have the latest bios off the gigabyte website F4C and 8GB of corsair RAM.

I realy need get ubuntu in my system, I was try with ubuntu 10.04, ubuntu 10.10, ubuntu 11.04, ubuntu 12.04, scientific linux,  ubuntu 11.10, and ever got the same messege.
Any ideas why this might be happening?
Thanks
Comment 1 Alan 2012-06-20 13:51:57 UTC
*** Bug 43611 has been marked as a duplicate of this bug. ***
Comment 2 Len Brown 2012-06-26 02:39:59 UTC

Please post the output from acpidump,
so we can take a look at the table by hand
and see what's going on.

Bob,
perhaps we should drop this down to ACPI_INFO()
from ACPI_WARNING()?   Would be nice to have FW_WARN
start off the message in any case -- this is a BIOS bug.

We are already ignoring this error because ACPI_CHECKSUM_ABORT
is not defined...
Comment 3 Robert Moore 2012-06-26 22:07:10 UTC
This checksum warning seems to be common on Gigabyte motherboards with the TAMG table. Gigabyte motherboards seem to have another table, UCCA. Both TAMG and UCCA are not defined by the ACPI specification.

Still, we would like to see the acpidump for the machine.
Comment 4 Mike Bonar 2012-07-17 09:07:56 UTC
Created attachment 75551 [details]
acpidump for Gigabyte motherboard
Comment 5 Robert Moore 2012-11-30 20:47:08 UTC
The warning has been change to an ACPI_BIOS_WARNING (equivalent to FW_WARN.)

I think it should stay a warning, because if something goes wrong, it may very well mean that the table is corrupted.
Comment 6 Zhang Rui 2012-11-30 23:42:56 UTC
Bob, do you we already have a fix for this?
Comment 7 Robert Moore 2012-12-01 00:29:57 UTC
Yes, it is in ACPICA. It should already be in linux. (The change to ACPI_BIOS_WARNING.)
Comment 8 Zhang Rui 2012-12-01 02:55:18 UTC
Great. Bug Resolved.
I'll close it once the patch is in upstream.
Comment 9 Rafael J. Wysocki 2013-02-19 00:56:14 UTC
Please reopen if your system doesn't boot with the v3.8 mainline kernel.
Comment 10 Erminio Ottone 2013-07-22 11:07:10 UTC
(In reply to Rafael J. Wysocki from comment #9)
> Please reopen if your system doesn't boot with the v3.8 mainline kernel.

Hello,
I found that very same error message in the file /var/log/kern.log

ACPI Warning: Incorrect checksum in table [TAMG] - 0xF8, should be 0xF7 (20110623/tbutils-314)

My motherboard is a Gigabyte GA-P55A-UD5 rev 1.0 (bios F12).

$ uname -a
Linux 3.2.0-49-generic #75-Ubuntu SMP Tue Jun 18 17:39:32 UTC 2013 x86_64

I'm posting here because this is one of the fewest place over the internet where the bug has been reported.

I wound up looking for some acpi errors in log files because often (but not always) boot takes longer than it used to do. Sometime even freezes after grub and when I press Ctrl-Alt-Canc appears the message "acpi exiting" ...

Thanks
Comment 11 Erminio Ottone 2013-07-22 11:09:28 UTC
Created attachment 106983 [details]
acpidump - Gigabyte GA-P55A-UD5 rev 1.0
Comment 12 Erminio Ottone 2013-07-22 11:10:55 UTC
Comment on attachment 106983 [details]
acpidump - Gigabyte GA-P55A-UD5 rev 1.0

Gigabyte GA-P55A-UD5 rev 1.0

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