kern/82143: kqueue on FreeBSD 4.11 fails to report UDP read events

[Diane Bruce]

>Number:         82143
>Category:       kern
>Synopsis:       kqueue on FreeBSD 4.11 fails to report UDP read events
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Jun 11 15:40:16 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Diane Bruce
>Release:        FreeBSD 4.11-STABLE i386
>Organization:
As always, disorganised.
>Environment:
System: FreeBSD timdeluxe.fierogods.org 4.11-STABLE FreeBSD 4.11-STABLE #7: Tue Jun 7 13:32:55 MDT 2005 root at timdeluxe.fierogods.org:/usr/obj/usr/src/sys/timdeluxe i386


>Description:
	UDP read events are not triggering a kqueue event, this causes
	DNS resolvers which rely on kqueue to fail.

>How-To-Repeat:
	undernet ircd using kqueue is affected
	ircd-hybrid using kqueue is affected

>Fix:

	Workaround for now is to use poll()


>Release-Note:
>Audit-Trail:
>Unformatted: