BIND 9.x (/dev/random question)

[Tor Houghton <torh@bogus.net>]

Hello,

I've been reading the docs for BIND 9.1.0, and it says the following
about /dev/random:

  On FreeBSD systems, the server logs error messages like "fcntl(8, F_SETFL, 4):
  Inappropriate ioctl for device". This is due to a bug in the FreeBSD /dev/random
  device. The bug has been reported to the FreeBSD maintainers. Versions of
  OpenBSD prior to 2.8 have a similar problem. 

I am still running 2.6 on some systems. What breaks with this "bug"? Can I fix
/dev/random without upgrading to 2.8?

Best regards,

Tor