What "ata1.00: ACPI _SDD failed (AE 0x5)" message mean ?

Solution Unverified - Updated -

Issue

  • Getting below messages in /var/log/messages :
ERST: Error Record Serialization Table (ERST) support is initialized.
ata1.00: ACPI _SDD failed (AE 0x5)
ata2.00: ACPI _SDD failed (AE 0x5)
ata1.00: ACPI _SDD failed (AE 0x5)
ata1.00: ACPI: failed the second time, disabled
ata2.00: ACPI _SDD failed (AE 0x5)
ata2.00: ACPI: failed the second time, disabled
virbr0: starting userspace STP failed, starting kernel STP

Environment

  • Red Hat Enterprise Linux 6, minor versions <7

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