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From: dirk.meyer@dinoex.sub.org (Dirk Meyer)
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Subject: Re: mbuf leak? fxp?
Date: Sun, 01 Apr 2001 06:20:43 +0200
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Archie Cobbs wrote:,

> I have this machine that starts running out of mbufs every few days
> ("looutput: mbuf allocation failed") and then crashes, and was wondering
> if anyone else has seen similar behavior...
> 
> [...]
> 
> It appears that something is slowly eating up mbuf clusters.
> The machine is on a network with continuous but very low volume
> traffic, including some random multicast, NTP, etc. The machine
> itself is doing hardly anything at all.
> 
> (Possibly) relevant information:
> 
>   - FreeBSD 4.2-RELEASE
>   - Ethernet driver is fxp(4)
>   - Using ipfw(4) and divert(4)
>   - mysql is running, which uses a UNIX domain socket
> 
> (Possibly) relevant clue:
> 
>   - We have other machines configured almost identically but which
>     are not using the fxp(4) driver (and which are handling lots more
>     traffic) that don't show this problem.
> 
> Any ideas?? I wonder if there's some obscure error condition in the
> fxp(4) driver that has a memory leak.

I saw somthing similar with "Ethernet driver de(4)"
A bad workaround seem to be a daily call to:

ifconfig <interface> down
ifconfig <interface> up

I reported it, but nobody had summiten any followup yet:
http://www.FreeBSD.org/cgi/query-pr.cgi?pr=24949

Gruß Dirk

- Dirk Meyer, Im Grund 4, 34317 Habichtswald, Tel 05606/6512 Q (voice)
- Origin: DINOEX Habichtswald  -FRG-  [dirk.meyer@dinoex.sub.org]

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