Hi Impact bulletin - that does actually have a fix! if you use SUMA to get fixes!
Here is the bulletin link:
http://www14.software.ibm.com/webapp/set2/subscriptions/onvdq?mode=18&ID=3150&myns=pwraix61&mync=ESummary:
Error description
System crash due to unpinned eventlist in e_clear_wait().
When?
Systems running the 6100-08 Technology Level with bos.mp64 below the 6.1.8.16 level. -- IV14309
Systems running the 6100-07 Technology Level with bos.mp64 below the 6.1.7.19 level. -- IV13404
Systems running the 6100-06 Technology Level with bos.mp64 below the 6.1.6.23 level. -- IZ94647
Solution: use SUMA to download the patches.