WHEA_ERROR_RECORD_HEADER structure (ntddk.h)

Article
09/01/2022

The WHEA_ERROR_RECORD_HEADER structure describes general information about a hardware error condition.

Syntax

typedef struct _WHEA_ERROR_RECORD_HEADER {
  ULONG                              Signature;
  WHEA_REVISION                      Revision;
  ULONG                              SignatureEnd;
  USHORT                             SectionCount;
  WHEA_ERROR_SEVERITY                Severity;
  WHEA_ERROR_RECORD_HEADER_VALIDBITS ValidBits;
  ULONG                              Length;
  WHEA_TIMESTAMP                     Timestamp;
  GUID                               PlatformId;
  GUID                               PartitionId;
  GUID                               CreatorId;
  GUID                               NotifyType;
  ULONGLONG                          RecordId;
  WHEA_ERROR_RECORD_HEADER_FLAGS     Flags;
  WHEA_PERSISTENCE_INFO              PersistenceInfo;
  union {
    struct {
      ULONG OsBuildNumber;
      UCHAR Reserved2[8];
    };
    UCHAR Reserved[12];
  };
} WHEA_ERROR_RECORD_HEADER, *PWHEA_ERROR_RECORD_HEADER;

Members

Signature

The signature of the error record. This member contains the value 'REPC'.

Revision

A WHEA_REVISION union that describes the revision level of the WHEA_ERROR_RECORD_HEADER structure.

SignatureEnd

The end of the signature of the error record. This member contains the value 0xFFFFFFFF.

SectionCount

The number of sections of error information that are contained in the error record.

Severity

A WHEA_ERROR_SEVERITY-typed value that indicates the severity of the error condition described by the error record.

ValidBits

A WHEA_ERROR_RECORD_HEADER_VALIDBITS union that specifies which members of the WHEA_ERROR_RECORD_HEADER structure contain valid data.

Length

The length, in bytes, of the error record.

Timestamp

A WHEA_TIMESTAMP union that indicates the time that the error was reported to the operating system. This member contains valid data only if the ValidBits.Timestamp bit is set.

PlatformId

A GUID that identifies the platform on which the hardware error occurred. This member contains valid data only if the ValidBits.PlatformId bit is set.

PartitionId

A GUID that identifies the partition on which the hardware error occurred. This member contains valid data only if the ValidBits.PartitionId bit is set.

CreatorId

A GUID that identifies the entity that created the error record. When the Windows kernel creates an error record, it sets this member to WHEA_RECORD_CREATOR_GUID.

NotifyType

A GUID that identifies the notification mechanism by which an error condition is reported to the operating system. The following are the GUIDs for the standard notification types:

CMC_NOTIFY_TYPE_GUID

Corrected Machine Check (CMC)

CPE_NOTIFY_TYPE_GUID

Corrected Platform Error (CPE)

MCE_NOTIFY_TYPE_GUID

Machine Check Exception (MCE)

PCIe_NOTIFY_TYPE_GUID

PCI Express (PCIe) Error

INIT_NOTIFY_TYPE_GUID

INIT Error Record (INIT)

NMI_NOTIFY_TYPE_GUID

Nonmaskable Interrupt (NMI)

BOOT_NOTIFY_TYPE_GUID

Boot Error Record (BOOT)

For error notification types that do not conform to one of the standard types in the previous list, a platform-specific GUID can be defined to identify the notification mechanism. If the notification type does not correspond to any of the standard notification types or any platform-specific notification types, this member is set to GENERIC_NOTIFY_TYPE_GUID.

RecordId

The identifier of the error record. This identifier is unique only on the system that created the error record.

Flags

A WHEA_ERROR_RECORD_HEADER_FLAGS union that describes the error condition.

PersistenceInfo

A WHEA_PERSISTENCE_INFO union that is used by the error record persistence interface.

OsBuildNumber

Reserved2[8]

Reserved[12]

Reserved for system use.

Remarks

A WHEA_ERROR_RECORD_HEADER structure is contained within the WHEA_ERROR_RECORD structure. The WHEA_ERROR_RECORD_HEADER structure describes general information about the hardware error condition that is described by the error record.

Requirements

Requirement	Value
Minimum supported client	Supported in Windows Server 2008, Windows Vista SP1, and later versions of Windows.
Header	ntddk.h (include Ntddk.h)