[opensuse-kernel] Resource conflict(s) found affecting iTCO_wdt

Cristian Rodríguez

21 Jun 2012 21 Jun '12

13:31

Hi: After upgrading to 3.5rc3 I get the following warnings [ 17.952055] ACPI Warning: 0x0000000000000830-0x0000000000000833 SystemIO conflicts with Region \PMRG 1 (20120320/utaddress-251) [ 17.952059] ACPI Warning: 0x0000000000000830-0x0000000000000833 SystemIO conflicts with Region \_SB_.PCI0.SBRG.SMIE 2 (20120320/utaddress-251) [ 17.952060] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 17.952061] lpc_ich: Resource conflict(s) found affecting iTCO_wdt [ 17.952065] ACPI Warning: 0x0000000000000828-0x000000000000082f SystemIO conflicts with Region \PMRG 1 (20120320/utaddress-251) [ 17.952066] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 17.952095] lpc_ich: Resource conflict(s) found affecting gpio_ich How should I clear this conflict, which driver I have to blacklist ? -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org

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Jean Delvare

21 Jun 21 Jun

15:49

Hi Cristian, Le jeudi 21 juin 2012 à 09:31 -0400, Cristian Rodríguez a écrit :

...

After upgrading to 3.5rc3 I get the following warnings

[ 17.952055] ACPI Warning: 0x0000000000000830-0x0000000000000833 SystemIO conflicts with Region \PMRG 1 (20120320/utaddress-251) [ 17.952059] ACPI Warning: 0x0000000000000830-0x0000000000000833 SystemIO conflicts with Region \_SB_.PCI0.SBRG.SMIE 2 (20120320/utaddress-251) [ 17.952060] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 17.952061] lpc_ich: Resource conflict(s) found affecting iTCO_wdt [ 17.952065] ACPI Warning: 0x0000000000000828-0x000000000000082f SystemIO conflicts with Region \PMRG 1 (20120320/utaddress-251) [ 17.952066] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 17.952095] lpc_ich: Resource conflict(s) found affecting gpio_ich

How should I clear this conflict, which driver I have to blacklist ?

This is caused by the new driver for Intel GPIO pins. Blacklist driver "lpc_ich" if you want to get rid of these. -- Jean Delvare Suse L3 -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org

Jeff Mahoney

22 Jun 22 Jun

01:39

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 6/21/12 11:49 AM, Jean Delvare wrote:

...

Hi Cristian,

Le jeudi 21 juin 2012 à 09:31 -0400, Cristian Rodríguez a écrit :

...
After upgrading to 3.5rc3 I get the following warnings

[ 17.952055] ACPI Warning: 0x0000000000000830-0x0000000000000833 SystemIO conflicts with Region \PMRG 1 (20120320/utaddress-251) [ 17.952059] ACPI Warning: 0x0000000000000830-0x0000000000000833 SystemIO conflicts with Region \_SB_.PCI0.SBRG.SMIE 2 (20120320/utaddress-251) [ 17.952060] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 17.952061] lpc_ich: Resource conflict(s) found affecting iTCO_wdt [ 17.952065] ACPI Warning: 0x0000000000000828-0x000000000000082f SystemIO conflicts with Region \PMRG 1 (20120320/utaddress-251) [ 17.952066] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 17.952095] lpc_ich: Resource conflict(s) found affecting gpio_ich

How should I clear this conflict, which driver I have to blacklist ?

This is caused by the new driver for Intel GPIO pins. Blacklist driver "lpc_ich" if you want to get rid of these.

Or should we disable that completely? - -Jeff - -- Jeff Mahoney SUSE Labs -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.18 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBAgAGBQJP48zDAAoJEB57S2MheeWygDoP/1zta/QQzKKmno7VrfvPqCQL opb/3jhMVEpyvzYmmwW7Ob+XCDvaAuYlhib89Mfjtuw0ZKKKnZUosp+A8rh5d7nv 7YE5fFdk1JTgWmYwgXBVKaIo1aP23s1obfm+tXevfvSga/3HAd7G9xjPMUqLp4wN JTYNDFGG+yr9FIUQ8PFxUYBt9ShLHqi3NM2kFfaBvLFKNGjJL2dhMvARTLCemZAt Q+0FN8EGY3BNKwDrUOtWejmR5ZJioba0psPajcXC/bhXFIcS8iuWN1XuB49jJJXV TMpXF6QeMlEDl2ZYAyBw2K4MQEXFcxJBeNs+rSKbU2UIyT4Lai6+S1nvnN/Lb6bg Xby9wsZw0du6QJn0o+/ducMMh9s2nlmAtUM3eEntSriEN158xpFPhe98z8kv4f/h MiuXqlvVo8I6g6BUzli9rIADRi12Iij8XN08gLGEnDiV3ek9EybNox8Vi4aw8D+3 HbPdM6ua5AG4HRAOeInK5sGjXoAFE9Itt1WEDA7m8yImXjxWnF92J+7YKyxNCuBZ fa+UMoKzhg8bVsFKePZYCk/nc0MFn1kQGO70Lhho5dNiBFMdUZxX5lbe7GW3bo0y rSLQmPwUBcBJZFE9okTWZYGI184b/85Y+muOeHpkU8fhfvXRuyfWQ391BJyl4VSR //g0kU6uSAdoI1rymsRt =Ub8E -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org

Jean Delvare

08:46

Le jeudi 21 juin 2012 à 21:39 -0400, Jeff Mahoney a écrit :

...

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1

On 6/21/12 11:49 AM, Jean Delvare wrote:

...
Hi Cristian,

Le jeudi 21 juin 2012 à 09:31 -0400, Cristian Rodríguez a écrit :

...
After upgrading to 3.5rc3 I get the following warnings

[ 17.952055] ACPI Warning: 0x0000000000000830-0x0000000000000833 SystemIO conflicts with Region \PMRG 1 (20120320/utaddress-251) [ 17.952059] ACPI Warning: 0x0000000000000830-0x0000000000000833 SystemIO conflicts with Region \_SB_.PCI0.SBRG.SMIE 2 (20120320/utaddress-251) [ 17.952060] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 17.952061] lpc_ich: Resource conflict(s) found affecting iTCO_wdt [ 17.952065] ACPI Warning: 0x0000000000000828-0x000000000000082f SystemIO conflicts with Region \PMRG 1 (20120320/utaddress-251) [ 17.952066] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 17.952095] lpc_ich: Resource conflict(s) found affecting gpio_ich

How should I clear this conflict, which driver I have to blacklist ?

This is caused by the new driver for Intel GPIO pins. Blacklist driver "lpc_ich" if you want to get rid of these.

Or should we disable that completely?

I'm not sure what you mean exactly. Do you mean CONFIG_LPC_ICH=n? I see no good reason for that. There will be machines out there where the BIOS doesn't hijack the resources and native drivers are useful, be it for the watchdog or GPIOs. I'll need the GPIOs on my own workstation at the very least, I've been waiting for months for the driver to go upstream, so please don't go disabling it now :p If you think these warnings are too verbose and/or frightening, this can certainly be discussed and improved. Anyway, ACPI resource conflicts are going to be more and more frequent and this is an issue that will require a general solution in cooperation with hardware vendors, ACPI people, and kernel developers. BIOS wants to control more and more things, locking OS out of the hardware. First it was hardware monitoring, then SMBus, now GPIOs and watchdog... what next? -- Jean Delvare Suse L3 -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org

Jan Beulich

09:22

...

...
...
On 22.06.12 at 10:46, Jean Delvare wrote: Le jeudi 21 juin 2012 à 21:39 -0400, Jeff Mahoney a écrit : -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1

On 6/21/12 11:49 AM, Jean Delvare wrote:

...
Hi Cristian,

Le jeudi 21 juin 2012 à 09:31 -0400, Cristian Rodríguez a écrit :

...
After upgrading to 3.5rc3 I get the following warnings

[ 17.952055] ACPI Warning: 0x0000000000000830-0x0000000000000833 SystemIO conflicts with Region \PMRG 1 (20120320/utaddress-251) [ 17.952059] ACPI Warning: 0x0000000000000830-0x0000000000000833 SystemIO conflicts with Region \_SB_.PCI0.SBRG.SMIE 2 (20120320/utaddress-251) [ 17.952060] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 17.952061] lpc_ich: Resource conflict(s) found affecting iTCO_wdt [ 17.952065] ACPI Warning: 0x0000000000000828-0x000000000000082f SystemIO conflicts with Region \PMRG 1 (20120320/utaddress-251) [ 17.952066] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 17.952095] lpc_ich: Resource conflict(s) found affecting gpio_ich

How should I clear this conflict, which driver I have to blacklist ?

This is caused by the new driver for Intel GPIO pins. Blacklist driver "lpc_ich" if you want to get rid of these.

Or should we disable that completely?

I'm not sure what you mean exactly. Do you mean CONFIG_LPC_ICH=n? I see no good reason for that.

Also, there being two other drivers that select this, it would imply also disabling those (GPIO_ICH/gpio-ich.ko and ITCO_WDT/ iTCO_wdt.ko). What I find concerning is that there are resource conflicts reported among those. Jan

...

There will be machines out there where the BIOS doesn't hijack the resources and native drivers are useful, be it for the watchdog or GPIOs. I'll need the GPIOs on my own workstation at the very least, I've been waiting for months for the driver to go upstream, so please don't go disabling it now :p

If you think these warnings are too verbose and/or frightening, this can certainly be discussed and improved.

Anyway, ACPI resource conflicts are going to be more and more frequent and this is an issue that will require a general solution in cooperation with hardware vendors, ACPI people, and kernel developers. BIOS wants to control more and more things, locking OS out of the hardware. First it was hardware monitoring, then SMBus, now GPIOs and watchdog... what next?

-- Jean Delvare Suse L3

-- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org

-- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org

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Cristian Rodríguez
Jan Beulich
Jean Delvare
Jeff Mahoney