[DAFFODIL-2662] P8 cyclic deadlock regression

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.3.0
• Component/s: Back End, Middle "End"
• Assignee: Mike Beckerle
• Reporter: Mike Beckerle
• Created: 16/Feb/22 00:32
• Updated: 11/Mar/22 12:34
• Resolved: 10/Mar/22 14:42

Description

Affects 3.3.0-SNAPSHOTS since 9043425760dae277eff36087a2e715c70793db9c

(alignment/deadlock fix)

I got this backtrace running P8 testResync1c in roundTrip="onePass" mode. 

 

org.apache.daffodil.tdml.TDMLExceptionImpl: (Implementation: daffodil) SuspensionDeadlockException: Runtime Schema Definition Error: Expressions/Unparsers are circularly deadlocked (mutually defined):
 - AlignmentFillUnparserSuspendableOperation for sequence[1]
 - AlignmentFillUnparserSuspendableOperation for sequence[1]
 - AlignmentFillUnparserSuspendableOperation for sequence[1]
 - AlignmentFillUnparserSuspendableOperation for messagePriority
 - AlignmentFillUnparserSuspendableOperation for routingData
 - SuspendableExpression(dfdl:newVariableInstance, expr={ CDSHeader/messageLength })
 - AlignmentFillUnparserSuspendableOperation for length
 - target length for TOMSMessage expr <EvaluatableExpression eName='TOMSMessage' expr='{                        xs:unsignedInt(                          $p8:messageLength - ( 15 + dfdl:valueLength( ../TOMSHeader, "bytes" ))                           ) }' />
 - AlignmentFillUnparserSuspendableOperation for sequence[1]
 - SimpleTypeRetryUnparserSuspendableOperation for messageLength
 - AlignmentFillUnparserSuspendableOperation for sequence[1]
 - AlignmentFillUnparserSuspendableOperation for TTL
Schema context: messageLength Location line 60 column 8 in file:/home/mbeckerle/Documents/dataiti/git/dfdl-schemas/dfdl-p8/target/classes/com/owlcyberdefense/p8/xsd/headers.dfdl.xsd
Data location was preceding byte 124    at org.apache.daffodil.tdml.TDMLException$.apply(TDMLException.scala:32)
    at org.apache.daffodil.tdml.ParserTestCase.doOnePassRoundTripUnparseExpectSuccess(TDMLRunner.scala:1145)