From owner-freebsd-stable@FreeBSD.ORG Wed Feb 8 12:15:57 2012 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 15C95106566B for ; Wed, 8 Feb 2012 12:15:57 +0000 (UTC) (envelope-from alexander@leidinger.net) Received: from mail.ebusiness-leidinger.de (mail.ebusiness-leidinger.de [217.11.53.44]) by mx1.freebsd.org (Postfix) with ESMTP id BD51B8FC0A for ; Wed, 8 Feb 2012 12:15:56 +0000 (UTC) Received: from outgoing.leidinger.net (p5796D68A.dip.t-dialin.net [87.150.214.138]) by mail.ebusiness-leidinger.de (Postfix) with ESMTPSA id 7B85C84400C; Wed, 8 Feb 2012 13:15:41 +0100 (CET) Received: from unknown (IO.Leidinger.net [192.168.1.12]) by outgoing.leidinger.net (Postfix) with ESMTP id BB69C2AA3; Wed, 8 Feb 2012 13:15:38 +0100 (CET) Date: Wed, 8 Feb 2012 13:15:37 +0100 From: Alexander Leidinger To: "Eugene M. Zheganin" Message-ID: <20120208131537.00004c01@unknown> In-Reply-To: <4F324F10.2060508@norma.perm.ru> References: <4F30E284.8080905@norma.perm.ru> <4F310115.3070507@FreeBSD.org> <4F310C5A.6070400@norma.perm.ru> <4F310E75.7090301@FreeBSD.org> <4F3144A9.2000505@norma.perm.ru> <4F314892.50806@FreeBSD.org> <4F314B5B.100@norma.perm.ru> <4F3186C6.8000904@FreeBSD.org> <4F324F10.2060508@norma.perm.ru> X-Mailer: Claws Mail 3.7.10cvs42 (GTK+ 2.16.6; i586-pc-mingw32msvc) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-EBL-MailScanner-Information: Please contact the ISP for more information X-EBL-MailScanner-ID: 7B85C84400C.A04F5 X-EBL-MailScanner: Found to be clean X-EBL-MailScanner-SpamCheck: not spam, spamhaus-ZEN, SpamAssassin (not cached, score=-0.971, required 6, autolearn=disabled, ALL_TRUSTED -1.00, AWL -0.04, TW_ZF 0.08, T_RP_MATCHES_RCVD -0.01) X-EBL-MailScanner-From: alexander@leidinger.net X-EBL-MailScanner-Watermark: 1329308144.06559@BQxXemMODmNt/B59UwXU8Q X-EBL-Spam-Status: No Cc: freebsd-stable Subject: Re: zfs arc and amount of wired memory 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: Wed, 08 Feb 2012 12:15:57 -0000 On Wed, 08 Feb 2012 16:31:44 +0600 "Eugene M. Zheganin" wrote: > swap_pager: indefinite wait buffer > > Since it's swapping on zvol, it looks to me like it could be the > mentioned in another thread here ("Swap on zvol - recommendable?") > resource starvation issue; may be it happens faster when the ARC > isn't limited. > > So I want to ask - how to report it and what should I include in such > pr ? I can't remember to have seen any mention of SWAP on ZFS being safe now. So if nobody can provide a reference to a place which tells that the problems with SWAP on ZFS are fixed: 1. do not use SWAP on ZFS 2. see 1. 3. check if you see the same problem without SWAP on ZFS (btw. see 1.) Bye, Alexander. -- http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137