Subject: Re: pppd "write: No buffer space available"
To: Frederick Bruckman <>
From: Steven M. Bellovin <>
List: netbsd-users
Date: 06/15/2004 09:15:14
In message <>, Frederick Br
uckman writes:
>On Tue, 15 Jun 2004, Carl Brewer wrote:
>> Frederick Bruckman wrote:
>>> On Tue, 15 Jun 2004, Carl Brewer wrote:
>>>> Jun 15 11:59:19 fw pppd[165]: write: No buffer space available
>>> I've seen it too. A work-around seems to be to disable compression,
>>> or reduce it -- with "deflate 9", I don't get that anymore at all.
>>> The problem may be fixed in current and NetBSD 2.0, as they have a
>>> newer version of pppd, but I haven't tried them yet for this.
>> I'll give that a try and see how it goes.  Won't that kill
>> some performance though?

A lot will depend on your traffic mix.  For many people, the bulk of 
the bytes come from jpg and gif files, and those aren't further 
compressed by pppd.  OTOH, Powerpoint and Word files are huge and 
compress very well, which probably says something about the actual 
semantic content of most of them...

		--Steve Bellovin,