just a random pick
JCL Abend code : S028
A paging operation has not completed successfully due to one of the following:
- A permanent I/O error occurred while attempting a page-in or swap-in operation. The data being paged in or swapped in is lost.
- A real storage management routine or another system routine performing a service for RSM suffered an intermediate error. the function performed is terminated.
- A auxiliary storage management routine suffered a translation error while using the control register of another address space to update that address space's LSQA.