From owner-freebsd-fs@FreeBSD.ORG Tue Oct 12 17:33:59 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 26541106566C for ; Tue, 12 Oct 2010 17:33:59 +0000 (UTC) (envelope-from avg@icyb.net.ua) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 6B8898FC17 for ; Tue, 12 Oct 2010 17:33:58 +0000 (UTC) Received: from odyssey.starpoint.kiev.ua (alpha-e.starpoint.kiev.ua [212.40.38.101]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id UAA23401; Tue, 12 Oct 2010 20:33:54 +0300 (EEST) (envelope-from avg@icyb.net.ua) Message-ID: <4CB49C01.4020202@icyb.net.ua> Date: Tue, 12 Oct 2010 20:33:53 +0300 From: Andriy Gapon User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.9) Gecko/20100920 Lightning/1.0b2 Thunderbird/3.1.4 MIME-Version: 1.0 To: Jeremy Chadwick 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> <20101012171818.GA37195@icarus.home.lan> In-Reply-To: <20101012171818.GA37195@icarus.home.lan> X-Enigmail-Version: 1.1.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit 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 17:33:59 -0000 on 12/10/2010 20:18 Jeremy Chadwick said the following: > 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. :-) Yeah :) > 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. Yes. > I'd say commit it! :-) Thanks a lot for testing! > 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? Disabling sendfile should be sufficient. -- Andriy Gapon