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RE: Regression between rc2 and rc6: ACPI EC problems

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Hi, Wolfram

> From: linux-acpi-owner@vger.kernel.org [mailto:linux-acpi-
> owner@vger.kernel.org] On Behalf Of Wolfram Sang
> Subject: Regression between rc2 and rc6: ACPI EC problems
> 
> Hi,
> 
> when upgrading from v4.7-rc2 to rc6 on my Dell Mini 9, battery and
> temperature status info got bogus. Here is the major change between the
> boot logs:
> 
> ACPI : EC: EC stopped
> ACPI Exception: AE_BAD_PARAMETER, Returned by Handler for
> [EmbeddedControl] (20160422/evregion-300)
> ACPI Error: Method parse/execution failed [\_SB.PCI0.LPCB.EC0._REG]
> (Node f5d09870), AE_BAD_PARAMETER (20160422/psparse-542)
> ACPI Exception: AE_BAD_PARAMETER, from region _REG,
> [EmbeddedControl] (20160422/evregion-397)
> ACPI Exception: AE_BAD_PARAMETER, Returned by Handler for
> [EmbeddedControl] (20160422/evregion-300)
> ACPI Error: Method parse/execution failed [\_SB.PCI0.LPCB.EC0._REG]
> (Node f5d09870), AE_BAD_PARAMETER (20160422/psparse-542)
> ACPI Exception: AE_BAD_PARAMETER, from region _REG,
> [EmbeddedControl] (20160422/evregion-397)
> ACPI : EC: GPE = 0x19, I/O: command/status = 0x66, data = 0x62
> ACPI : EC: EC started
> 
> The only config changes between the kernels were enabling MMC block
> devices and DM_CRYPT. Not likely to cause the above, I'd think.
> 
> Does that ring a bell for someone? This little machine has only an SSD
> without TRIM, so bisecting is not really an option. I can provide more
> info and test patches, though.
[Lv Zheng] 
Please just ignore this for several release cycles.
We need strategy to fix the ACPI initialization order issues.
This is already a noted non-function-failure issue.
We just need to fix the functional ones prior than this.

Thanks and best regards
-Lv

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Thread

Regression between rc2 and rc6: ACPI EC problems Wolfram Sang <wsa@the-dreams.de> - 2016-07-06 16:20 +0200
  Re: Regression between rc2 and rc6: ACPI EC problems "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-07-06 23:30 +0200
    RE: Regression between rc2 and rc6: ACPI EC problems "Zheng, Lv" <lv.zheng@intel.com> - 2016-07-07 02:30 +0200
      Re: Regression between rc2 and rc6: ACPI EC problems "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-07-07 02:40 +0200
        RE: Regression between rc2 and rc6: ACPI EC problems "Zheng, Lv" <lv.zheng@intel.com> - 2016-07-07 02:40 +0200
  RE: Regression between rc2 and rc6: ACPI EC problems "Zheng, Lv" <lv.zheng@intel.com> - 2016-07-07 02:40 +0200
  RE: Regression between rc2 and rc6: ACPI EC problems "Zheng, Lv" <lv.zheng@intel.com> - 2016-07-07 02:40 +0200
  [RFC PATCH] ACPI / EC: Fix an order issue in ec_remove_handlers() Lv Zheng <lv.zheng@intel.com> - 2016-07-07 04:00 +0200
    RE: [RFC PATCH] ACPI / EC: Fix an order issue in  ec_remove_handlers() "Zheng, Lv" <lv.zheng@intel.com> - 2016-07-07 06:40 +0200
  [PATCH v3] ACPI / EC: Fix an order issue in ec_remove_handlers() Lv Zheng <lv.zheng@intel.com> - 2016-07-08 03:30 +0200

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