NonStop Operating System Event Management Programming Manual
Operating System Event Messages (ZGRD)
HP NonStop Operating System Event Management Programming Manual—520372-020
12-11
Messages
Conditional Tokens
Cause. The process reported in the event encountered one or more data 
misalignment exceptions.
Effect. The effects are unpredictable. The program might silently corrupt adjacent 
data, compute wrong answers, or make wrong decisions.
Recovery. Fix the data misalignment coding error at the code address indicated by 
ZGRD-TKN-MISALIGN-P for TNS mode processes or ZGRD-TKN-MISALIGN-NMPC 
for native mode processes. If you are unable to fix the code, for whatever reason, see 
the Recovery Action Requiring Vendor Support on page 12-6.
109: ZGRD-EVT-MISALIGN-NOCHECK
The process that checks for misalignment exceptions in current processes could not 
run.
Token Description
ZGRD-TKN-XPROCESSNAME Name of the process that has misalignment. It is 
displayed only for named processes.
ZGRD-TKN-MISALIGN-P Code address (program counter) of the emulated TNS 
instruction (expressed as an octal value). This token is 
present only if the misalignment exception occurs in 
emulated code.
ZGRD-TKN-MISALIGN-NMPC Code address (program counter) associated with the 
misalignment exception (expressed as a hexadecimal 
value). This token is present only if the exception occurs 
in accelerated or native code. If the misalignment 
exception occurred in millicode (ZGRD-TKN-MISALIGN-
EPC is present), the address is a return address, 
indicating the point at which the millicode was invoked.
ZGRD-TKN-MISALIGN-EPC Millicode address (program counter) associated with the 
misalignment exception (expressed as a hexadecimal 
value), if it occurred in the millicode. ZGRD-TKN-
MISALIGN-EPC is present only if it does not contain the 
same value as ZGRD-TKN-MISALIGN-NMPC.
Subject: None
Potentially critical event: No
Action event: No
Message sender: Monitor process
TMDS collector: No
OSM/TSM collector: Yes










