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To: Terry Todd <tlt@badger.tltodd.com>
cc: freebsd-questions@FreeBSD.ORG
Subject: Re: No buffer space available 
In-reply-to: Your message of "Wed, 30 Jul 1997 18:01:17 CDT."
             <199707302301.SAA09724@badger.tltodd.com> 
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Date: Fri, 01 Aug 1997 02:12:47 +0100
From: Brian Somers <brian@awfulhak.org>
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> 
> I posted this once before and didn't hear anything back but that may 
> have been because various people were on vacation.  This happened
> again last week and I had maxconcur set to 8.  My system is set up
> with a dedicated 28.8 dial up using pppd.  99% of the time it just 
> sits there and runs happily along.  I really like FreeBSD.
> Here's the main symptom that something is wrong:
> ping: sendto: No buffer space available
> After it gets in this state it will never recover by itself.
> Is there something else that I need to do if it happens again?
[.....]

You could try the following patch (in /sys/net).  It *may* fix 
things, otherwise you could try iijppp (ppp).

*** slcompress.c.orig	Mon Jun 23 20:06:31 1997
--- slcompress.c	Sun Jun 22 06:51:12 1997
***************
*** 217,222 ****
--- 217,224 ----
  		comp->last_cs = lcs;
  		hlen += th->th_off;
  		hlen <<= 2;
+ 		if (hlen > m->m_len)
+ 		    return TYPE_IP;
  		goto uncompressed;
  
  	found:
***************
*** 247,252 ****
--- 249,256 ----
  	deltaS = hlen;
  	hlen += th->th_off;
  	hlen <<= 2;
+ 	if (hlen > m->m_len)
+ 	    return TYPE_IP;
  
  	if (((u_short *)ip)[0] != ((u_short *)&cs->cs_ip)[0] ||
  	    ((u_short *)ip)[3] != ((u_short *)&cs->cs_ip)[3] ||

-- 
Brian <brian@awfulhak.org>, <brian@freebsd.org>
      <http://www.awfulhak.org>
Don't _EVER_ lose your sense of humour....