misc/53421: 8.0_RC2 named has resource issue

[mark%ecs.vuw.ac.nz@localhost]

>Number:         53421
>Category:       misc
>Synopsis:       8.0_RC2 named has resource issue
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    misc-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jul 03 11:45:00 +0000 2018
>Originator:     Mark Davies
>Release:        NetBSD 8.0_RC2
>Organization:
ECS, Victoria Uni. of Wellington, New Zealand.
>Environment:
	
	
System: NetBSD downstage.ecs.vuw.ac.nz 8.0_RC2 NetBSD 8.0_RC2 (GENERIC) #4: Mon Jun 25 12:23:43 NZST 2018 mark%turakirae.ecs.vuw.ac.nz@localhost:/local/SAVE/8_64.obj/src/work/8/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
	upgrading a reasonably heavily used nameserver machine from 7.1_STABLE to 8.0_RC2
	after running for a few hours named will stop answering queries with the following logged
	to syslog:

Jul  2 21:48:28 downstage named[22054]: UDP client handler shutting down due to fatal receive error: not enough free resources

	restarting named gets it working for another few hours and then repeats.
	Don't know which particular "free resources" its complaining about.
	Same problem occurs if you use the named binary from 7.1_STABLE on the 8.0_RC2 system
	so the issue is presumably in libraries or the kernel.
	
>How-To-Repeat:
	don't know
	
>Fix:
	don't know
	

>Unformatted: