From owner-freebsd-stable@FreeBSD.ORG Sun Feb 3 21:23:58 2008 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 CC86F16A418 for ; Sun, 3 Feb 2008 21:23:58 +0000 (UTC) (envelope-from freebsd-stable@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id 4AABF13C4EE for ; Sun, 3 Feb 2008 21:23:58 +0000 (UTC) (envelope-from freebsd-stable@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1JLmJb-0003ok-H9 for freebsd-stable@freebsd.org; Sun, 03 Feb 2008 21:23:51 +0000 Received: from 78-1-113-112.adsl.net.t-com.hr ([78.1.113.112]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 03 Feb 2008 21:23:51 +0000 Received: from ivoras by 78-1-113-112.adsl.net.t-com.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 03 Feb 2008 21:23:51 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-stable@freebsd.org From: Ivan Voras Date: Sun, 03 Feb 2008 22:23:44 +0100 Lines: 42 Message-ID: References: <3aaaa3a0802030751w69ce59a9oeb869e3d87d92616@mail.gmail.com> <20080203205825.GA62536@in-addr.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig71AF302F2031436C49562DDF" X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 78-1-113-112.adsl.net.t-com.hr User-Agent: Thunderbird 2.0.0.9 (Windows/20071031) In-Reply-To: <20080203205825.GA62536@in-addr.com> X-Enigmail-Version: 0.95.6 Sender: news Subject: Re: gjournal panic 7.0-RC1 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: Sun, 03 Feb 2008 21:23:58 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig71AF302F2031436C49562DDF Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Gary Palmer wrote: > On Sun, Feb 03, 2008 at 09:35:44PM +0100, Ivan Voras wrote: >> If so, this is the same class of errors as ZFS (some would call it=20 >> "tuning errors"), only this time the space reserved for the on-disk=20 >> journal is too small, and the fast drives fill it up before data can b= e=20 >> transfered from the journal to the data area. >=20 > Is there something stopping gjournal from temporarily blocking writes > to the journal to allow it to flush the journaled data to the provider?= I've done something like that in the past, but I don't know if Pawel's=20 gjournal has this implemented. I feel that a good solution could be to somehow pause the file system at = the VFS layer not to generate requests that would result in IO writes -=20 this could (in theory...) help with ZFS. --------------enig71AF302F2031436C49562DDF Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHpjDgldnAQVacBcgRAnpuAKCBp41nE55TNHPQ1TNK47+eiWKbkACg6aKf +nGW6jqRPWsxEF+usvN2vnc= =kM2d -----END PGP SIGNATURE----- --------------enig71AF302F2031436C49562DDF--