NonStop Operating System Event Management Programming Manual

Interprocessor Bus Event Messages (ZIPB)
HP NonStop Operating System Event Management Programming Manual—520372-020
4-9
Messages
Cause. If either the ZIPB-EVT-BUSSEND (100) or ZIPB-EVT-BUSXSUM (102) event
message was already issued, a hardware failure occurred on the bus. Prior to this
event message, one of the following situations occurred:

The operating system disabled the bus path because of bus errors.

The operator issued the XBUSDOWN or YBUSDOWN command.
Effect. The operating system brings down the bus.
Recovery. If the operating system brought down the bus, see Recovery Action
Requiring Vendor Support on page 4-6. The bus remains disabled until the operator
manually restores it with the XBUSUP or YBUSUP command.
102: ZIPB-EVT-BUSXSUM
The receiving processor detected checksum errors on the bus.
Subject: ZIPB-TKN-BUS
Potentially critical event: Yes
Action event: No
Message sender: Monitor process
TMDS collector: Yes
Unconditional Tokens
ZEMS-TKN-EVENTNUMBER token-type ZSPI-TYP-INT
ZIPB-TKN-BUS token-type ZSPI-TYP-BYTE
ZIPB-TKN-CPU token-type ZSPI-TYP-UINT
ZIPB-TKN-RECVCHECKSUM token-type ZSPI-TYP-UINT
ZIPB-TKN-RECVROUTE token-type ZSPI-TYP-UINT
ZIPB-TKN-RPTCPU token-type ZSPI-TYP-UINT
ZIPB-TKN-PRBCPU token-type ZSPI-TYP-UINT
Event-Message Text
(D20 and later releases only):
CPU nn : BUS {X|Y}: nn CHECKSUM ERRORS FROM CPU nn
(D10 release only):
CPU nn : {X|Y} BUS ERRORS FROM PROCESSOR nn
#checksum-errors #routing-errors