Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
ACPI BIOS Warning (bug): Incorrect checksum in table [BGRT]
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware
View previous topic :: View next topic  
Author Message
username63n
n00b
n00b


Joined: 22 May 2018
Posts: 7

PostPosted: Mon May 20, 2019 9:01 pm    Post subject: ACPI BIOS Warning (bug): Incorrect checksum in table [BGRT] Reply with quote

I get the following message to dmesg:
Code:
[    0.039880] ACPI BIOS Warning (bug): Incorrect checksum in table [BGRT] - 0x42, should be 0x54 (20170728/tbprint-211)

Is this a kernel issue or hardware issue? Is there anything i can do?

Here is my motherboard information. I have updated the firmware to the latest.
Code:
# dmidecode -t 2
# dmidecode 3.1
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.

Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
        Manufacturer: ASRock
        Product Name: Z270 Pro4
        Version:                       
        Serial Number: M80-A5006500686
        Asset Tag:                       
        Features:
                Board is a hosting board
                Board is replaceable
        Location In Chassis:                       
        Chassis Handle: 0x0003
        Type: Motherboard
        Contained Object Handles: 0


There is another warning as well in dmesg:
Code:
usb: port power management may be unreliable

Any suggestion why this warning is thrown and how it affects my system.

Im running gentoo on xen 4.10.3-r1 Dom0 with kernel 4.14.83. Dom0 is working fine and i have not detected any problems. However I cant get pci passthrough to work with pch lanes (gpu with direct cpu link works just fine).
Back to top
View user's profile Send private message
mike155
Veteran
Veteran


Joined: 17 Sep 2010
Posts: 1413
Location: Frankfurt, Germany

PostPosted: Tue May 21, 2019 5:45 pm    Post subject: Reply with quote

Quote:
[ 0.039880] ACPI BIOS Warning (bug): Incorrect checksum in table [BGRT] - 0x42, should be 0x54 (20170728/tbprint-211)

If your machine works well, you can ignore this message.

Quote:
usb: port power management may be unreliable

I haven't seen this message before. Most probably, you can ignore it. Please check that the correct USB2 and USB3 kernel modules are loaded (look at the output of 'lsmod' and 'lspci -k')

See: https://unix.stackexchange.com/questions/323692/what-does-usb-port-power-management-may-be-unreliable-actually-mean

Quote:
However I cant get pci passthrough to work with pch lanes (gpu with direct cpu link works just fine).

I can't help you on this topic, because I don't know Xen...
Back to top
View user's profile Send private message
username63n
n00b
n00b


Joined: 22 May 2018
Posts: 7

PostPosted: Wed May 22, 2019 7:55 am    Post subject: Reply with quote

Thanks for your reply.

Quote:

If your machine works well, you can ignore this message.


I am quite sure those issues causes problems with xen pci-passthrough so i would like to fix them.

Anyway, it is still unclear whether the acpi issue is only related to bios/motherboard and is there anything to do. Same error is thrown when reading acpidump with iasl (that is, i think, what kernel does when booting)

The usb warning comes from source file
Code:
drivers/usb/core/port.c
function
Code:
static void link_peers_report(struct usb_port *left, struct usb_port *right)

but im not familiar with kernel code and dont know what this exactly means. It would be appreciated if someone could help. USB drivers are loaded and USB is working fine in Dom0.
Back to top
View user's profile Send private message
mike155
Veteran
Veteran


Joined: 17 Sep 2010
Posts: 1413
Location: Frankfurt, Germany

PostPosted: Wed May 22, 2019 8:24 am    Post subject: Reply with quote

Quote:
I am quite sure those issues causes problems with xen pci-passthrough so i would like to fix them.

Well, maybe. But please keep in mind that the Linux kernel writes strange ACPI messages on nearly every mainboard. In most cases, they are harmless and can be ignored. I doubt that the two messages you showed are related to your Xen pci-passthrough problem.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum