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ACPI Error — AE_ERROR (20160831/psparse-543)
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charles17
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Joined: 02 Mar 2008
Posts: 2613

PostPosted: Mon Aug 28, 2017 1:02 pm    Post subject: ACPI Error — AE_ERROR (20160831/psparse-543) Reply with quote

After each resume from suspend, dmesg is constantly giving me these messages:
dmesg wrote:
[ 2073.702235] CPU7 is up
[ 2073.707629] ACPI: Waking up from system sleep state S3
[ 2073.708949] ACPI Exception: AE_ERROR, Returned by Handler for [PCI_Config] (20160831/evregion-300)
[ 2073.708953] ACPI Error: Method parse/execution failed [\_WAK] (Node ffff88042c09ad70), AE_ERROR (20160831/psparse-543)
[ 2073.708960] ACPI Exception: AE_ERROR, While executing method \_WAK (20160831/hwesleep-83)
[ 2073.709094] ACPI : EC: interrupt unblocked
[ 2073.720595] ehci-pci 0000:00:1a.0: System wakeup disabled by ACPI
[ 2073.720598] ehci-pci 0000:00:1d.0: System wakeup disabled by ACPI
[ 2073.720965] xhci_hcd 0000:00:14.0: System wakeup disabled by ACPI
[ 2073.733703] PM: noirq resume of devices complete after 24.735 msecs
[ 2073.734366] PM: early resume of devices complete after 0.649 msecs
[ 2073.734416] ACPI : EC: event unblocked

The system (kernel is 4.9.34) however works without obvious errors.
Could someone please explain to me what these messages mean?
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Ant P.
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Joined: 18 Apr 2009
Posts: 5761

PostPosted: Mon Aug 28, 2017 4:58 pm    Post subject: Reply with quote

If everything's otherwise working then I wouldn't worry about it. ACPI is known for being a garbage-fire, the kernel is very good at working around its bugs.
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