Question:Why does su user returns a bus error on Solaris 8
Answer:These kind of problems are caused when there are some missing patches.
Specifically, it is possible that this machine does not have 110898-12 patch that may be causing this problem. Below is the link from where patches can be downloaded.
http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/patch-accessIt is recommended that all "Sun recommended" patch list be downloaded and applied on the solaris machines.
Centrify Corporation does not take any responsibility for the content or availability of this link and it was provided as a courtesy. Customers should contact the vendor if there are any further questions