An error occurred trying to update the last known TTR (file position) and block number for a stream that had simultaneously been open for read with a stream that was just closed. The NOTE macro failed. The SIGIOERR is raised (if needed). Further reads are prevented until a reopen and reposition.
Check the AMRC for details of the error. In the SIGIOERR handler, the AMRC2 can be checked to find the stream that incurred the error.
JrEdc1oscEutility04