NonStop Operating System Event Management Programming Manual

Low-Level I/O Event Messages (ZGIO)
HP NonStop Operating System Event Management Programming Manual—520372-020
3-42
Messages
Recovery. If the error continues to occur, see Recovery Action Requiring Vendor
Support on page 3-13.
129: ZGIO-EVT-IIOZEROBYTEREAD
An attempt to perform a zero-byte read data transfer was detected.
Unconditional Tokens
Cause. An attempt to read zero bytes was detected by the channel during data
transfer.
Effect. No data is transferred from the device, and the data transfer in progress is
aborted.
Subject: ZGIO-TKN-CHANNEL, ZGIO-TKN-CONTROLLER, and
ZGIO-TKN-UNIT
Type of event: Device-related or controller-related
Potentially critical event: No
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
Event-Message Text
ZERO BYTE COUNT ON READ, CHAN %channel, CTLR %controller,
UNIT %device
Token Description
ZEMS-TKN-EVENTNUMBER Event number for this message. Value is ZGIO-EVT-
IIOZEROBYTEREAD (129).
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.