The following bug has been logged online:
Bug reference: 1501
Logged by: nagash
Email address: postgresql(at)nagash(dot)org
PostgreSQL version: 7.4.2
Operating system: gentoo
Description: in additional to previous "DEAD of child"
Details:
pg kill all it's childs
also tested on 7.4.2 PG on gentoo OS as result: the same bug