Date: Tue, 3 Jun 2008 17:51:44 +0200 From: Nicolas Haller <nicolas@boiteameuh.org> To: Bill Moran <wmoran@potentialtech.com> Cc: freebsd-questions@freebsd.org Subject: Re: The machine which does nothing Message-ID: <20080603155144.GC19003@boiteameuh.org> In-Reply-To: <20080603102327.7629a042.wmoran@potentialtech.com> References: <20080603140219.GB19003@boiteameuh.org> <20080603102327.7629a042.wmoran@potentialtech.com>
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--kVXhAStRUZ/+rrGn Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jun 03, 2008 at 10:23:27AM -0400, Bill Moran wrote: > In response to Nicolas Haller <nicolas@boiteameuh.org>: > > Hi all, > >=20 > > I have a very strange problem with a machine. The box have a postfix > > which give e-mail to an amavisd-new and deliver ham to mailboxes. > >=20 > > The problem is the mail queue grow but the machine doesn't work at full > > capacity. CPU is 90% idle, vmstat don't see proc are waiting for > > anything, disks are playing poker and there is a lot of RAM available. > >=20 > > The machine have this problem under freebsd 6.3 and 7.0-RELEASE with a > > bi-Xeon Quad core. > amavisd and postfix do a lot of stuff. Could be timing out on DNS or > other networking issues. Grab a tcpdump while it's running and see > if any networking is taking an extraordinary amount of time. Ho, it seems my box randomly send ICMP port unreachable packets to my DNS server. It's an another problem. I see my box doing the DNS request, I see my DNS server answer and, sometimes, my box send the ICMP packet. Anyone know why my box send ICMP port unreachable? --=20 Nicolas Haller --kVXhAStRUZ/+rrGn Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFIRWiQVrtqUQ7Ko4gRAjLaAKCU7TNpdX91C7/6DwH9Th3X+/kU/wCeOUiX yPvqcT1dyddmWkzp6DjRPUw= =D1pK -----END PGP SIGNATURE----- --kVXhAStRUZ/+rrGn--
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