Bug 789643 - ACPI Warning: 0x0000000000000b00-0x0000000000000b07 SystemIO conflicts with Region
Summary: ACPI Warning: 0x0000000000000b00-0x0000000000000b07 SystemIO conflicts with R...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: rawhide
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-02-11 23:30 UTC by Jóhann B. Guðmundsson
Modified: 2013-04-04 00:44 UTC (History)
11 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2012-02-14 02:46:26 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)
dmesg output (64.46 KB, text/plain)
2012-02-11 23:30 UTC, Jóhann B. Guðmundsson 		no flags Details
acpidump (251.32 KB, text/plain)
2012-02-14 14:30 UTC, Jóhann B. Guðmundsson 		no flags Details
View All

Description Jóhann B. Guðmundsson 2012-02-11 23:30:30 UTC 
Created attachment 561166 [details]
dmesg output

Description of problem:

[   11.375409] ACPI Warning: 0x0000000000000b00-0x0000000000000b07 SystemIO conflicts with Region \_SB_.PCI0.SMBS.SMBI 1 (20120111/utaddress-251)
[   11.375669] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver


Version-Release number of selected component (if applicable):

kernel-3.3.0-0.rc3.git3.1.fc17.x86_64

How reproducible:

Always

Steps to Reproduce:
1. boot 
2. run dmesg
3.
  
Actual results:

The above msg

Expected results:

No msg

Additional info:
Comment 1 Josh Boyer 2012-02-14 02:13:11 UTC 
Can you provide the output of acpidump please?

Also, does this message show up on other kernels, or just 3.3-rc3?

Matthew, any ideas?
Comment 2 Matthew Garrett 2012-02-14 02:46:26 UTC 
The smbus controller is defined in ACPI space, so may be used by ACPI functions. It's therefore unsafe to let the Linux hardware driver use it. It's an informational warning to let you know why the smbus driver isn't working.
Comment 3 Jóhann B. Guðmundsson 2012-02-14 14:29:35 UTC 
(In reply to comment #1)
> Can you provide the output of acpidump please?

Attached

> Also, does this message show up on other kernels, or just 3.3-rc3?

Just in 3.3 not 3.2
Comment 4 Jóhann B. Guðmundsson 2012-02-14 14:30:29 UTC 
Created attachment 561914 [details]
acpidump
Comment 5 Jóhann B. Guðmundsson 2012-02-14 14:31:28 UTC 
(In reply to comment #2)
> The smbus controller is defined in ACPI space, so may be used by ACPI
> functions. It's therefore unsafe to let the Linux hardware driver use it. It's
> an informational warning to let you know why the smbus driver isn't working.

Just added the acpidump just in case since this warning msg is only present on 3.3 not 3.2.
Comment 6 Matthew Garrett 2012-02-14 14:38:57 UTC 
This code got broken somewhere between 2.6.37 and 3.2. It's fixed again for 3.3.
Comment 7 Álvaro Castillo 2013-01-12 09:21:13 UTC 
The bug persist with kernel 3.6.11-1.fc17.x86_64

My laptop is: HP G6-2145SS.

Error message:
[  150.970833] ACPI Warning: 0x0000000000000b00-0x0000000000000b07 SystemIO conflicts with Region \_SB_.PCI0.SMBS.SMB0 1 (20120711/utaddress-251)
Comment 8 Chris Murphy 2013-04-04 00:44:27 UTC 
Same message for me with an Apple Macbook Pro 4,1 booting EFI mode, using kernels 3.6.10, 3.6.11, 3.7.9, 3.8.4, 3.8.5 and 3.9.0-0.rc5.git2.1.fc19.x86_64. (Pretty sure it's all 3.6.x to 3.9.0 inclusive, but those are the ones I just confirmed the warning occurs with.)
Note You need to log in before you can comment on or make changes to this bug.