From owner-freebsd-current@FreeBSD.ORG Tue Mar 17 13:59:53 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 497371065674 for ; Tue, 17 Mar 2009 13:59:53 +0000 (UTC) (envelope-from freebsd-current@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id F29588FC19 for ; Tue, 17 Mar 2009 13:59:52 +0000 (UTC) (envelope-from freebsd-current@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1LjZpg-0003Wq-2F for freebsd-current@freebsd.org; Tue, 17 Mar 2009 13:59:52 +0000 Received: from lara.cc.fer.hr ([161.53.72.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 17 Mar 2009 13:59:52 +0000 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 17 Mar 2009 13:59:52 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-current@freebsd.org From: Ivan Voras Date: Tue, 17 Mar 2009 14:59:21 +0100 Lines: 46 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigEE17D9D88A905123349F32F2" X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: lara.cc.fer.hr User-Agent: Thunderbird 2.0.0.19 (X11/20090105) In-Reply-To: X-Enigmail-Version: 0.95.0 Sender: news Subject: Re: A trio of problems X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Mar 2009 13:59:53 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigEE17D9D88A905123349F32F2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Bob Bishop wrote: > Hi, >=20 > On 16 Mar 2009, at 23:28, Ivan Voras wrote: >=20 >> 1. I'm trying to start 1000 jails for demonstration purposes (a >> presentation), but I can reliably panic the kernel when somewhere >> between 400 and 600 jails are started. [etc] >=20 > On 17 Mar 2009, at 01:37, Ivan Voras wrote: >=20 >> ZFS doesn't influence it - the same problem happens without ZFS on the= >> system (though I can create a few hundred more jails without ZFS befor= e >> the kernel panics...). >=20 > In which case, given how memory-hungry ZFS is, it looks like your > problem is with exhausting some memory resource. It did occur to me but if it is, why didn't it fail in an obvious way (e.g. kmem_map panics with ZFS), and how to tune it so if works? This is AMD64 with 0.5 GB - 1 GB memory in the Free bin when it panics. --------------enigEE17D9D88A905123349F32F2 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFJv6y5ldnAQVacBcgRAtOrAKCraQ2aUyLE0ryuu3PkLzqcIOyqOACbBWiK D9Mlln/EcU5sZscvF6KEZfc= =eNPs -----END PGP SIGNATURE----- --------------enigEE17D9D88A905123349F32F2--