Date: Sun, 14 May 2006 22:49:58 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Howard Leadmon <howard@leadmon.net> Cc: freebsd-stable@freebsd.org Subject: Re: Trouble with NFSd under 6.1-Stable, any ideas? Message-ID: <20060515024958.GA99002@xor.obsecurity.org> In-Reply-To: <017301c67784$45377a90$071872cf@Leadmon.local> References: <017301c67784$45377a90$071872cf@Leadmon.local>
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--3MwIy2ne0vdjdPXF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, May 14, 2006 at 02:28:55PM -0400, Howard Leadmon wrote: >=20 > Hello All,=20 >=20 > I have been running FBSD a long while, and actually running since the 5.x > releases on the server I am having troubles with. I basically have a sm= all > network and just use NIS/NFS to link my various FBSD and Solaris machines > together. >=20 > This has all been running fine up till a few days ago, when all of a sud= den > NFS came to a crawl, and CPU usage so high the box appears to freeze almo= st. > When I had 6.1-RC running all seemed well, then came the announcement for= the > official 6.1 release, so I did the cvs updates, made world, kernel, and r= an > mergemaster to get everything up to the 6.1 stable version. >=20 > Now after doing this, something is wrong with NFS. It works, it will r= eturn > information and open files, just it's very very slow, and while performin= g a > request the CPU spike is astounding. A simple du of my home directory can > take minutes, and machine all but locks up if the request is done over NF= S. > Here is top snip: >=20 > PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND > 497 root 1 4 0 1252K 780K - 2 50:42 188.48% nfsd >=20 >=20 > This is a nice IBM eServer with dual P4-XEON's and a couple GB or RAM on= a > disk array, and locally is screams, heck NFS used to scream till I update= d. I > am not really sure what info would be useful in debugging, so won't post = tons > of misc junk in this eMail, but if anyone has any ideas as to how best to > figure out and resolve this issue it would sure be appreicated... Use tcpdump and related tools to find out what traffic is being sent. Also verify that you did not change your system configuration in any way: there have been no changes to NFS since the release, so it is unclear why an update would cause the problem to suddenly occur. Kris --3MwIy2ne0vdjdPXF Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (FreeBSD) iD8DBQFEZ+xVWry0BWjoQKURAvEyAKD85OWnWNMROhMa5EFhoAX+VvopnACfYsbJ 9FSFdnqY2b+ViQ01ASJm4u8= =WSoY -----END PGP SIGNATURE----- --3MwIy2ne0vdjdPXF--
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