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
*** Bug 43611 has been marked as a duplicate of this bug. ***
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...
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.
Created attachment 75551 [details] acpidump for Gigabyte motherboard
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.
Bob, do you we already have a fix for this?
Yes, it is in ACPICA. It should already be in linux. (The change to ACPI_BIOS_WARNING.)
Great. Bug Resolved. I'll close it once the patch is in upstream.
Please reopen if your system doesn't boot with the v3.8 mainline kernel.
(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
Created attachment 106983 [details] acpidump - Gigabyte GA-P55A-UD5 rev 1.0
Comment on attachment 106983 [details] acpidump - Gigabyte GA-P55A-UD5 rev 1.0 Gigabyte GA-P55A-UD5 rev 1.0