NonStop Operating System Event Management Programming Manual

Low-Level I/O Event Messages (ZGIO)
HP NonStop Operating System Event Management Programming Manual—520372-020
3-35
Messages
Unconditional Tokens
Cause. This event occurs when device ownership changes while the processor that
reports the event is executing an IIO instruction. Either two operating systems are
running in the same system, the device controller has failed, or a power on (PON) has
occurred.
Effect. If there are excessive ownership errors, the operating system disables the
channel.
Recovery. If the error continues to occur, see Recovery Action Requiring Vendor
Support on page 3-13.
123: ZGIO-EVT-IIOPADIN
During an odd-byte data transfer, the device controller did not return a handshake on
the last byte transferred.
Token Description
ZEMS-TKN-EVENTNUMBER Event number for this message. Value is ZGIO-EVT-
IIOOWNERSHIPERROR (122).
ZEMS-MAP-EXIOADDR External (physical) I/O address.
ZGIO-TKN-CHANNEL Subject token that specifies the channel affected by this
event.
ZGIO-TKN-CONTROLLER Subject token that specifies the controller number for the
event.
ZGIO-TKN-UNIT Subject token that specifies the unit number for the event.
ZGIO-TKN-FECODE File-system error code returned when an invalid command
is sent to the device.
Subject: ZGIO-TKN-CHANNEL, ZGIO-TKN-CONTROLLER, and
ZGIO-TKN-UNIT
Type of event: Device-related or controller-related
Potentially critical event: Yes
Action event: No
Message sender: I/O process
TMDS collector: Yes
Unconditional Tokens
ZEMS-TKN-EVENTNUMBER token-type ZSPI-TYP-INT
ZEMS-MAP-EXIOADDR definition ZSPI-DDL-EXIOADDR
ZGIO-TKN-CHANNEL token-type ZSPI-TYP-UINT
ZGIO-TKN-CONTROLLER token-type ZSPI-TYP-BYTE
ZGIO-TKN-UNIT token-type ZSPI-TYP-BYTE
ZGIO-TKN-FECODE token-type ZSPI-TYP-BYTE