Date: Mon, 14 Feb 2005 17:53:45 +0100 From: Max Laier <max@love2party.net> To: freebsd-hackers@freebsd.org Subject: Re: netstat info weird Message-ID: <200502141753.53718.max@love2party.net> In-Reply-To: <Pine.BSF.4.62.0502141854510.89395@apache.metrocom.ru> References: <Pine.BSF.4.62.0502141854510.89395@apache.metrocom.ru>
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--nextPart1165951.9pb7kWRv05 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Monday 14 February 2005 17:02, Varshavchick Alexander wrote: > Hi all, > > I guess something is wrong here: > > netstat -m > > 4294961156 mbufs in use > ^^^^^^^^^^ > 4294967102/50176 mbuf clusters in use (current/max) > ^^^^^^^^^^ > 0/3/12800 sfbufs in use (current/peak/max) > 4192381 KBytes allocated to network > ^^^^^^^ > 0 requests for sfbufs denied > 0 requests for sfbufs delayed > 0 requests for I/O initiated by sendfile > 43 calls to protocol drain routines > > > It is 5.3-RELEASE, 2-cpu server Xeon box with 4G of RAM. > > As the other evidence that something is wrong with the server, the > system halts at random times (the only way is to press reboot button). > The are no messages in the server logs to the subject. > > Any hints are welcome. Thanks in advance. This is a statistic problem. "$vmstat -z | grep Mbuf" gives accurate numbe= rs. =20 It is possible to have correct stats in netstat -m output, but at the cost = of=20 an additional atomic operation for every allocation. As these are very=20 expensive (esp. on P4) it was decided to not care that much about this=20 special statistics. If the command above gives normal numbers (third column) the cause must be= =20 somewhere else. You can try to build a debugging kernel and see if that=20 turns anything up. =2D-=20 /"\ Best regards, | mlaier@freebsd.org \ / Max Laier | ICQ #67774661 X http://pf4freebsd.love2party.net/ | mlaier@EFnet / \ ASCII Ribbon Campaign | Against HTML Mail and News --nextPart1165951.9pb7kWRv05 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQBCENehXyyEoT62BG0RAso7AJ9Z81T6fOJ0P7TrOgewf/vvQCJG9QCbBYAN QwkeLYeK07fmNdxlcRCX+js= =ZvAD -----END PGP SIGNATURE----- --nextPart1165951.9pb7kWRv05--
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