Error message from the event log:
Error: process sp_ordr killed due to SIGSEGV [sp_cop/12082]
Core file generated is around 900 MB.
This is the Product issue with the way the libraries are linked. There is a ceiling of 900MB for the HP Itanium build.
As a result reader core dumps when it needs memory greater than the limit.
Apply 22.214.171.124 patch. This can be downloaded from supportlink.
This was discovered in version 126.96.36.199 for HP Itanuim processors. The fix addressed in 188.8.131.52 build is to relink sp_ordr differently, which should give around 2GB of addressable space.