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メッセージ「_OSC failed (AE_NOT_FOUND); disabling ASPM」が表示される

Solution Unverified - Updated -

Issue

  • 起動時に ACPI からのエラーメッセージが複数表示されます。
Apr  9 13:24:08 localhost.localdomain kernel: acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI]
Apr  9 13:24:08 localhost.localdomain kernel: acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
Apr  9 13:24:08 localhost.localdomain kernel: acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge.

Environment

  • Red Hat Enterprise Linux 7

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