From owner-freebsd-stable@FreeBSD.ORG Sat Aug 22 23:14:10 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4395C106568B; Sat, 22 Aug 2009 23:14:10 +0000 (UTC) (envelope-from doconnor@gsoft.com.au) Received: from cain.gsoft.com.au (cain.gsoft.com.au [203.31.81.10]) by mx1.freebsd.org (Postfix) with ESMTP id 8EB6D8FC0C; Sat, 22 Aug 2009 23:14:09 +0000 (UTC) Received: from inchoate.gsoft.com.au (ppp121-45-173-89.lns11.adl2.internode.on.net [121.45.173.89]) (authenticated bits=0) by cain.gsoft.com.au (8.13.8/8.13.8) with ESMTP id n7MNE7Nh077085 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Sun, 23 Aug 2009 08:44:07 +0930 (CST) (envelope-from doconnor@gsoft.com.au) From: "Daniel O'Connor" To: Robert Watson Date: Sun, 23 Aug 2009 08:43:53 +0930 User-Agent: KMail/1.9.10 References: <200908201204.24914.doconnor@gsoft.com.au> <200908222211.52878.doconnor@gsoft.com.au> In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1828320.9GPGPxByzW"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200908230844.01585.doconnor@gsoft.com.au> X-Spam-Score: -1.533 () AWL,BAYES_00,RDNS_DYNAMIC X-Scanned-By: MIMEDefang 2.63 on 203.31.81.10 Cc: Kostik Belousov , FreeBSD Stable Subject: Re: Blocked process X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 22 Aug 2009 23:14:10 -0000 --nextPart1828320.9GPGPxByzW Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Sat, 22 Aug 2009, Robert Watson wrote: > On Sat, 22 Aug 2009, Daniel O'Connor wrote: > > On Fri, 21 Aug 2009, CmdLnKid wrote: > >> came back or the machine was rebooted. I continued for a while > >> using /var/mail over NFS while setting or unset mail variables for > >> the shell. You may also want to check into whether something is > >> trying to acquire a lock on a file over that NFS mount which could > >> accrue some extra time making it seem like a process is hung. > > > > We don't have any NFS mounts so I don't think that's it :( > > A number of issues were corrected over the course of the 6.x life > span involving scheduing, including some relating to "lost wakeups".=20 > Many bug fixes relating to threading were also introduced (not sure > if that's relevant to your workload). While it's never a > particularly fun recommendation, I think I'd suggest sliding forward > to the most recent 6.x kernel (but otherwise identical > configuration), perhaps sticking with your current userspace, and > seeing if that resolves the issue. OK, should be feasible to do that I think. Luckily people at this site=20 don't need to drive for a few hours to fix the PC :) Thanks. =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart1828320.9GPGPxByzW Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iD8DBQBKkHu55ZPcIHs/zowRAqVEAJ9H7AyzgmE1AuPVTmMA6TLSMxAhHQCfRn3B rnsIELjInNd2kKZv3rC4CgI= =NN6D -----END PGP SIGNATURE----- --nextPart1828320.9GPGPxByzW--