Date: Wed, 28 Jun 1995 16:50:55 -0400 (EDT) From: "Michael C. Newell" <mnewell@lupine.nsi.nasa.gov> To: hackers@freebsd.org Subject: pppd eating CPU time Message-ID: <Pine.SUN.3.91.950628164111.15400Y-100000@lupine.nsi.nasa.gov>
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I have a 486SX-40 8Mb memory running FreeBSD 2.0.5R with two 16550 UART serial ports and one WD8013 plus one WD8003 Ethernet card. This machine is acting as a PPP server and a router. There is nothing connected to the WD8013 card at present; eventually it will form a test network (it is currently configured "down"). This machine is exclusively a router; we don't run apps on it, and it doesn't have keyboard or monitor (i.e. no X :-). When I connect to it from another host (we're using both SunOS 4.1.3 and FreeBSD 1.1.5.1 as PPP clients) everything looks normal. However, as soon as we ping an interface to verify that it is up the corresponding ppp daemon starts using up all available CPU time. If we have two ppp daemons running, they split the time between them. Everything works correctly (albiet commands issued on the server run REAL slowly), but there's 0% idle time. This occurs wether or not there's data crossing the link. I've enabled debugging but no oddnesses are logged in the messages file. Before I start worrying the problem, I thought I'd check to see if anyone else has seen this (I didn't notice any messages coming through on the -hacker's list, but it's a pretty active list so I may have missed something; if so, I'd appreciate a reference... :-) Thanks, Mike +--------------------------------------+------------------------------------+ |Mike Newell | The opinions expressed herein are | |NASA Science Internet Network Systems | my own, and do not necessarily | |Sterling Software, Inc. | reflect those of the NSI program, | |MNewell@nsipo.nasa.gov | Sterling Software, NASA, or anyone | |+1-202-434-8954 | else. | +--------------------------------------+------------------------------------+ | work: http://www.eco.nsi.nasa.gov/~mnewell | | home: http://www.newell.arlington.va.us | +---------------------------------------------------------------------------+
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