From owner-freebsd-fs@FreeBSD.ORG Tue Oct 12 17:18:21 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F34601065674 for ; Tue, 12 Oct 2010 17:18:20 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta14.emeryville.ca.mail.comcast.net (qmta14.emeryville.ca.mail.comcast.net [76.96.27.212]) by mx1.freebsd.org (Postfix) with ESMTP id D44438FC08 for ; Tue, 12 Oct 2010 17:18:20 +0000 (UTC) Received: from omta22.emeryville.ca.mail.comcast.net ([76.96.30.89]) by qmta14.emeryville.ca.mail.comcast.net with comcast id Hp2S1f0051vN32cAEtJLPf; Tue, 12 Oct 2010 17:18:20 +0000 Received: from koitsu.dyndns.org ([98.248.41.155]) by omta22.emeryville.ca.mail.comcast.net with comcast id HtJK1f0033LrwQ28itJK85; Tue, 12 Oct 2010 17:18:19 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id F13109B425; Tue, 12 Oct 2010 10:18:18 -0700 (PDT) Date: Tue, 12 Oct 2010 10:18:18 -0700 From: Jeremy Chadwick To: Andriy Gapon Message-ID: <20101012171818.GA37195@icarus.home.lan> References: <20101012130245.GA32584@icarus.home.lan> <4CB46CE9.20905@icyb.net.ua> <20101012143559.GA34396@icarus.home.lan> <4CB47355.1050109@icyb.net.ua> <20101012151852.GA35014@icarus.home.lan> <4CB47E3F.3050002@icyb.net.ua> <20101012154543.GA35378@icarus.home.lan> <4CB4887C.3050309@icyb.net.ua> <20101012162045.GA36262@icarus.home.lan> <4CB48BFA.50604@icyb.net.ua> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4CB48BFA.50604@icyb.net.ua> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-fs@freebsd.org Subject: Re: Locked up processes after upgrade to ZFS v15 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Oct 2010 17:18:21 -0000 On Tue, Oct 12, 2010 at 07:25:30PM +0300, Andriy Gapon wrote: > on 12/10/2010 19:20 Jeremy Chadwick said the following: > > On Tue, Oct 12, 2010 at 07:10:36PM +0300, Andriy Gapon wrote: > >>> Secondly: the testbox is running kernel/world source from October 8th. > >>> I *have not* applied your kernel patch at this point. Just a FYI. > >> > >> OK, can you now retest with the patch? > > > > Will do! Should have results in the next hour or so (going to start the > > buildkernel now). > > Just in case: KERNFAST=1 makes things really fast :-) Hmm, first time I've heard of that one. Akin to something like NOCLEAN? Ah, I'll just look it/the code up myself. :-) Anyway, system's rebuilt with your patch. Seems to work! The sendfile regression test now returns to the shell after the mmap test, and the DTrace script doesn't output any information, which I imagine is what's supposed to happen given the criteria. I'd say commit it! :-) Also, one thing which I'm sure users or SAs will ask in the meantime: what's the workaround, at least for Apache 2.x? Disable sendfile, disable mmap, or both together? -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |