From owner-freebsd-questions@FreeBSD.ORG Sun Jun 26 22:48:29 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7549916A41C for ; Sun, 26 Jun 2005 22:48:29 +0000 (GMT) (envelope-from leblanc@keyslapper.net) Received: from camomile.cloud9.net (camomile.cloud9.net [168.100.1.3]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2F9C043D49 for ; Sun, 26 Jun 2005 22:48:29 +0000 (GMT) (envelope-from leblanc@keyslapper.net) Received: from camomile.cloud9.net (localhost.cloud9.net [127.0.0.1]) by camomile.cloud9.net (Postfix) with SMTP id 137925699 for ; Sun, 26 Jun 2005 18:48:27 -0400 (EDT) Received: from keyslapper.net (250-119.customer.cloud9.net [168.100.250.119]) by camomile.cloud9.net (Postfix) with ESMTP id 1C9305697 for ; Sun, 26 Jun 2005 18:48:26 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by keyslapper.net (Postfix) with ESMTP id 4FC6D11564 for ; Sun, 26 Jun 2005 18:48:26 -0400 (EDT) Received: from keyslapper.net ([127.0.0.1]) by localhost (keyslapper.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 00616-06 for ; Sun, 26 Jun 2005 18:48:26 -0400 (EDT) Received: by keyslapper.net (Postfix, from userid 1001) id 08042114FD; Sun, 26 Jun 2005 18:48:26 -0400 (EDT) Date: Sun, 26 Jun 2005 18:48:25 -0400 From: Louis LeBlanc To: freebsd-questions@freebsd.org Message-ID: <20050626224825.GB970@keyslapper.net> Mail-Followup-To: freebsd-questions@freebsd.org References: <20050626191706.GB89575@keyslapper.net> <20050626223917.3b50913b.albi@scii.nl> <20050626205620.GC89575@keyslapper.net> <20050626142104.L1638@sotec.home> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="mYCpIKhGyMATD0i+" Content-Disposition: inline In-Reply-To: <20050626142104.L1638@sotec.home> X-PGP-Key: http://www.keyslapper.net/~leblanc/leblanc-at-keyslapper-net.asc User-Agent: Mutt/1.5.9i X-Virus-Scanned: amavisd-new at keyslapper.net X-AntiVirus: Checked by Vexira Antivirus v1.5 Subject: Re: Perl 5.8.6 to 5.8.7 upgrade fails IPC tests X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-questions@FreeBSD.org List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 26 Jun 2005 22:48:29 -0000 --mYCpIKhGyMATD0i+ Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 06/26/05 02:32 PM, Mikko Tyljrvi sat at the `puter and typed: > On Sun, 26 Jun 2005, Louis LeBlanc wrote: >=20 > > On 06/26/05 10:39 PM, albi@scii.nl sat at the `puter and typed: > >> On Sun, 26 Jun 2005 15:17:06 -0400 > >> Louis LeBlanc wrote: > >> > >>> I'm having a little trouble with my perl upgrade from 5.8.6 to 5.8.7. > >> -- cut -- > >>> ok 5 > >>> ok 6 > >>> semget: No space left on device > >> > >> you need to make disc-space, one idea is to run portsclean -C or to ma= ke > >> some more space in /usr/home > > > > That would be the obvious cause, but not so: >=20 > [...] >=20 > Indeed. Disk space most likely has nothing to do with it. >=20 > The semget(2) call returns ENOSPC when unable to allocate semaphores, > due to hitting one of the many SYSV IPC limitations. Some things to > look for: >=20 > - You need to have SYSVSEM in your kernel, or "sysvsem.ko" loaded. >=20 > - Check semaphore limits with "ipcs -S" >=20 > - Check current semaphore usage with "ipcs -s" >=20 > - Figure out what limit is being hit and do something about it :-) >=20 > Some of the values can be tweaked at run-time, with > "sysctl kern.ipc.semxxx=3Dvalue", others have to be set at boot > time (in /boot/loader.conf), or compiled into the kernel. This certainly does make sense, but I'm not sure I'm actually running short here. I have SYSVSEM in my kernel (as well as SYSVSHM and SYSVMSG), and the relevant sysctls are: kern.ipc.semmap: 30 kern.ipc.semmni: 10 kern.ipc.semmns: 60 kern.ipc.semmnu: 30 kern.ipc.semmsl: 60 kern.ipc.semopm: 100 kern.ipc.semume: 10 kern.ipc.semusz: 92 kern.ipc.semvmx: 32767 kern.ipc.semaem: 16384 # ipcs -S seminfo: semmap: 30 (# of entries in semaphore map) semmni: 10 (# of semaphore identifiers) semmns: 60 (# of semaphores in system) semmnu: 30 (# of undo structures in system) semmsl: 60 (max # of semaphores per id) semopm: 100 (max # of operations per semop call) semume: 10 (max # of undo entries per process) semusz: 92 (size in bytes of undo structure) semvmx: 32767 (semaphore maximum value) semaem: 16384 (adjust on exit max value) # ipcs -s Semaphores: T ID KEY MODE OWNER GROUP s 65536 5432001 --rw------- pgsql pgsql s 65537 5432002 --rw------- pgsql pgsql s 65538 5432003 --rw------- pgsql pgsql Near as I can tell, this tells me I have at least 60 semaphores systemwide, 60 per id, 3 in use, none of which are being used by root (which is who I am running the test as). Shouldn't that leave 57 for the perl tests? How many does it need to open? Lou --=20 Louis LeBlanc FreeBSD-at-keyslapper-DOT-net Fully Funded Hobbyist, KeySlapper Extrordinaire :) Please send off-list email to: leblanc at keyslapper d.t net Key fingerprint =3D C5E7 4762 F071 CE3B ED51 4FB8 AF85 A2FE 80C8 D9A2 Coronation, n.: The ceremony of investing a sovereign with the outward and visible signs of his divine right to be blown skyhigh with a dynamite bomb. -- Ambrose Bierce, "The Devil's Dictionary" --mYCpIKhGyMATD0i+ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFCvzC5r4Wi/oDI2aIRAi6xAJkBsdmxAT794Wp5PDFUhlswvjpl/gCfd8NI x6Kgr4+ljVIkma09p9Y9nKA= =pmYV -----END PGP SIGNATURE----- --mYCpIKhGyMATD0i+--