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From: mandrews@bob.Wittenberg.EDU (Mike Andrews)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: iijppp using 100% CPU even when modem idle?
Date: 25 Jun 96 17:25:12 GMT
Organization: Wittenberg University, Springfield OH
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Message-ID: <mandrews.835723512@bob.wittenberg.edu>
References: <mandrews.834976294@bob.wittenberg.edu> <Pine.SOL.3.91.960617212617.17095B-100000-100000-100000-100000@nujnuj.interaccess.com> <4q5mqr$a2p@spirit.dynas.se>
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OK, I gave the FreeBSD-stable version of iijppp a whirl, and it doesn't
help the 100% CPU problem.  Any more ideas?  The only other thing in common
between the two machines I tried it on is the same off-brand NE2000 card.
This wouldn't have anything to do with it, would it?

I didn't used to have this problem, but I forget what it was that triggered
it -- I think it was upgrading from 2.0.5 to 2.1.0.

(Rory, pppd does the same thing to me, btw -- that's why I tried iijppp
in the first place.)


mikko@dynas.se (Mikko Tyolajarvi) writes:

>Assuming you're running 2.1R, have you tried the ppp from -stable, rather
>than the one in the distribution?  It compiles as-is and contains a bunch
>of bugfixes.  The least it did for me was to relieve me of occasional
>core-dumps...

>Rory Imua Lampert <rory@interaccess.com> writes:

>>Hey there, the same thing happens to my machine.  It does not depend on
>>the modem I use...Practical Peripherals internal or USR Courier External. 
>>Ocassionally it will just start using 80%-98% of the cpu.  This has been
>>pushing me to use pppd, but I'd rather have it fixed than a work-around. 

>>Rory Imua Lampert
>>rory@interaccess.com

>>On 17 Jun 1996, Mike Andrews wrote:

>>> This one's been driving me nuts for a long time, but as I'm functional
>>> regardless I've been too lazy to ask about it until now...
>>> 
>>> How normal is it for iijppp to take up 100% of the CPU, even when the
>>> link is totally idle, and thus the kernel is seeing no comm interrupts?
>>> top indicates it is taking about 80% kernel mode and 20% user mode time.
-- 
-- Mike Andrews  -  mandrews@wittenberg.edu  -  mandrews@termfrost.org (NeXT)
-- Programmer/Analyst, webmaster/netnews guy, Wittenberg Univ, Springfield OH
-- http://www.termfrost.org/~mandrews/           "Don't get even, get odd..."