linux-rtsig does not work correctly with fastcgi

[graham@…]

When loading fastcgi pages with the linux-rtsig handler enabled on CentOS3, the error log complains of the fastcgi program disconnecting early (as the documentation says it would if the correct address were not in spawn-fcgi) and the page goes to the user incomplete. Switching to the poll implementation solves this issue. Happens erratically, but often. Can duplicate on demand to gather more debugging information.

Also happens in both 1.3.16 and 1.4.4.