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Date: Tue, 4 Sep 2001 05:15:10 -0700 (PDT)
From: Soonmyung Hong <sonnet@teatime.org>
To: freebsd-gnats-submit@FreeBSD.org
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Subject: kern/30307: dmesg output: looutput: mbuf allocation failed
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>Number:         30307
>Category:       kern
>Synopsis:       dmesg output: looutput: mbuf allocation failed
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Sep 04 05:20:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Soonmyung Hong
>Release:        FreeBSD 4.4-RC #0 i386
>Organization:
Innovay Inc
>Environment:
FreeBSD svr1.netssenger.com 4.4-RC FreeBSD 4.4-RC #0: Mon Aug 27 22:38:53 KST 2001
     root@svr1.netssenger.com:/usr/src/sys/compile/HELFIRE  i386
>Description:
Basically, It is same problem as kern/20927.
But It makes actual trouble. If it happened, networking doesn't work properly(ex: can't login via network, etc).

In previous PR(kern/20927) itojun mentioned "out of mbuf" problem. 
But in my experience, machine's netstat -m report enough mbuf remained.

It seems like after enough progress of mbuf fragmentation, system couldn't get contiguous mbuf.
I got this problem twice, and that machine's uptime is 30day, 41day.

>How-To-Repeat:
Unfortunately, have no idea.

It is heavy loaded network server machine uses about 2500 connection via loopback interface.



>Fix:

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

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