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From: hm@kts.org (Hellmuth Michaelis)
Subject: Re: ping: sendto: No buffer space available
To: andreas@klemm.gtn.com
Date: Wed, 26 Jun 1996 09:05:32 +0200 (MET DST)
Cc: current@freebsd.org, isdn@muc.ditec.de, mg@gtn.com
In-Reply-To: <Pine.BSI.3.94.960623110257.1705C-100000@klemm.gtn.com> from "Andreas Klemm" at Jun 23, 96 11:11:55 am
Organization: Kitchen Table Systems
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>From the keyboard of Andreas Klemm:

> I'm using FreeBSD-very-current and bisdn-095 to connect to my ISP.
> Unfortunally the Netgw router of my ISP is sometimes very busy.
> 
> After many many retries to connect to my ISP, networking seems
> to "shut down".
> 
> When I try to ping the ISDN router of my ISP, then I receive
> the message:
> 
> root{1119} /usr/bisdn-095/bisdnd ping gtn-isdn
> PING gtn-isdn (194.77.2.33): 56 data bytes
> ping: sendto: No buffer space available
> ping: wrote gtn-isdn 64 chars, ret=-1
> ping: sendto: No buffer space available
> ping: wrote gtn-isdn 64 chars, ret=-1
> 
> All resolver functions seems to hung. Nothing concerning name
> resolution works. No dialup to my default gateway takes place
> anymore to resolve addresses.

The problem is caused by the ipi driver eating up all mbufs available
in the system if no connection is made to the remote system.

I am working on this problem and have a solution for this but it needs
some thinking, work and testing to make the solution more general.

The new driver will be made available ASAP!

hellmuth
-- 
Hellmuth Michaelis                hm@kts.org                    Hamburg, Europe
                                              (A)bort, (R)etry, (I)nstall BSD ?