From owner-freebsd-stable@FreeBSD.ORG Sun Nov 22 00:44:05 2009 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 732F9106566C for ; Sun, 22 Nov 2009 00:44:05 +0000 (UTC) (envelope-from randy@psg.com) Received: from ran.psg.com (ran.psg.com [IPv6:2001:418:1::36]) by mx1.freebsd.org (Postfix) with ESMTP id 551F18FC12 for ; Sun, 22 Nov 2009 00:44:05 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=rmac.psg.com) by ran.psg.com with esmtp (Exim 4.69 (FreeBSD)) (envelope-from ) id 1NC0Ye-000BF4-PR; Sun, 22 Nov 2009 00:44:04 +0000 Received: from host-40-47.meeting.ietf.org.psg.com (localhost [127.0.0.1]) by rmac.psg.com (Postfix) with ESMTP id 3588D2C2C0BF; Sun, 22 Nov 2009 09:44:04 +0900 (JST) Date: Sun, 22 Nov 2009 09:44:03 +0900 Message-ID: From: Randy Bush To: Jeremy Chadwick In-Reply-To: <20091122002926.GA19628@icarus.home.lan> References: <4B066B13.1070006@freebsd.org> <4b07ac59.A2Afaf4X0IZlrgGU%perryh@pluto.rain.com> <57200BF94E69E54880C9BB1AF714BBCBA5722E@w2003s01.double-l.local> <20091121193643.GA14122@icarus.home.lan> <790a9fff0911211159k14920410g7a76cf6a292f0bae@mail.gmail.com> <20091122002926.GA19628@icarus.home.lan> User-Agent: Wanderlust/2.15.5 (Almost Unreal) Emacs/22.3 Mule/5.0 (SAKAKI) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Cc: freebsd-stable@freebsd.org Subject: Re: 7.2 dies in zfs 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, 22 Nov 2009 00:44:05 -0000 > Everyone's workloads are different, but the panic is the same every > time: kmem exhaustion. i386 with KVA_PAGES or amd64 -- happens on both. > It's highly dependent upon workload and what the filesystem consists of > (many files vs. fewer files but larger in size, etc.) these are measurable. at least until it crashes. the suggested memsz script could, instead of giving what to a naive admin are some cute but unhepful numbers, suggest values for loader.conf.local. randy