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Date:      Tue, 12 Sep 2000 17:37:27 -0700 (PDT)
From:      col@pobox.com
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   kern/21240: mbufs allocated to data is huge number in netstat -m
Message-ID:  <20000913003727.5325037B423@hub.freebsd.org>

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>Number:         21240
>Category:       kern
>Synopsis:       mbufs allocated to data is huge number in netstat -m
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Sep 12 17:40:01 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Chad Oleary
>Release:        4.1-STABLE
>Organization:
>Environment:
FreeBSD me.some.com 4.1-STABLE FreeBSD 4.1-STABLE #0: Tue Sep 12 16:38:46 EDT 2000     me@me.some.com:/usr/obj/usr/src/sys/KERN  i386

>Description:
After cvsup'ing from 4.1-RELEASE to 4.1-STABLE, I'm getting some strange
output from netstat -m

me# 4294789544/432/16384 mbufs in use (current/peak/max):
        4294789540 mbufs allocated to data
        4 mbufs allocated to packet headers
297/314/4096 mbuf clusters in use (current/peak/max)
736 Kbytes allocated to network (5440% in use)
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines

I have found problem report kern/19809. This looks identical to the situation
there. However, I have only config'd 4K of mbufs. Here's some sysctl stuff
if it helps.. 

me# sysctl kern | grep mb
kern.ipc.nmbclusters: 4096
kern.ipc.mbuf_wait: 32
kern.ipc.mbtypes: 178151 4294789573 4 0 0 0 0 0 0 0 0 0 0 0 0 0
kern.ipc.nmbufs: 16384

I've also set maxusers to 256.
>How-To-Repeat:
Not sure if a different machine would do the same, yet, but add NMBCLUSERS = 4096,
change maxusers to 256 in GENERIC, build, reboot. Try netstat -m.





>Fix:
not sure, yet.


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


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