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Date:      Fri, 27 Dec 2002 15:55:08 +0700 (KRAT)
From:      Eugene Grosbein <eugen@grosbein.pp.ru>
To:        FreeBSD-gnats-submit@FreeBSD.org
Subject:   kern/46557: ipfw pipe show fails with lots of queues
Message-ID:  <200212270855.gBR8t8Ii075103@gw2.svzserv.kemerovo.su>

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>Number:         46557
>Category:       kern
>Synopsis:       ipfw pipe show fails with lots of queues
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Dec 27 01:00:08 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Eugene Grosbein
>Release:        FreeBSD 4.7-STABLE i386
>Organization:
Svyaz Service JSC
>Environment:
System: FreeBSD gw2.svzserv.kemerovo.su 4.7-STABLE FreeBSD 4.7-STABLE #7: Thu Dec 26 14:00:53 KRAT 2002 sa@gw2.svzserv.kemerovo.su:/usr/obj/usr/src/sys/GW2 i386
	It is a router with 32Mb of RAM, 4x100Mbit NICs, ipfw1 and dummynet.
	
>Description:
	ipfw pipe show says:
	ipfw: getsockopt(IP_DUMMYNET_GET): No buffer space available

	I use dummynet pipes and queues for per-flow queueing, now I have
	192 queues (102 are active currently). Each queue is connected
	to a pipe, each pipe has 'mask all' attribute.

>How-To-Repeat:
	Build a kernel with options DUMMYNET.
	Get ipfw rules from PR kern/44045, make high load of traffic
	wait an hour, try to run ipfw pipe show.

>Fix:

	Unknown for me.
>Release-Note:
>Audit-Trail:
>Unformatted:

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