From owner-freebsd-stable@FreeBSD.ORG Mon Jun 29 11:58:25 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 0C321106564A for ; Mon, 29 Jun 2009 11:58:25 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: from mail-bw0-f216.google.com (mail-bw0-f216.google.com [209.85.218.216]) by mx1.freebsd.org (Postfix) with ESMTP id 81C8C8FC1B for ; Mon, 29 Jun 2009 11:58:24 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: by bwz12 with SMTP id 12so282519bwz.43 for ; Mon, 29 Jun 2009 04:58:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to:cc :content-type:content-transfer-encoding; bh=ikjEmZGFR3viEzQEQKrAYaEgYY5TZKs5yMnHi/f3Cxo=; b=DQE2Ka4BcIgZIXwMzmTloWXkKRFq+MNEMws8VJbk622akz4p+jjPqPvTSw5ai/bZFS oXpGVzpNtoFxTMrfWZGccC9zDg6pt51cjc61Z0w29f1RxoVRynhqy1e6AM0emB7ydAXZ OfRTa+FHMWQdQKs/OV3uhulLH4YXesTwsBURE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=oTcQTAg1mdAkQTTGZ3qgc+kiFOvU0l1f5OU0Tl+Qc9wmY0EC0f47vwOiGmj39kCNlW WWbxvoPfFG1SU5vffJjxuXLe7BB9V1WSsM+DLFAMz0DCkh5B1LbBPdTX+qUBq6U4ai+X Rhb3hh+fYLDivhgISix57jaNzURKbrNZMRJas= MIME-Version: 1.0 Sender: asmrookie@gmail.com Received: by 10.223.115.193 with SMTP id j1mr4388281faq.85.1246276703131; Mon, 29 Jun 2009 04:58:23 -0700 (PDT) In-Reply-To: References: Date: Mon, 29 Jun 2009 13:58:23 +0200 X-Google-Sender-Auth: 69052f5313d9ff3d Message-ID: <3bbf2fe10906290458v3d57441ar44c4ed8f36c957f@mail.gmail.com> From: Attilio Rao To: pluknet Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: freebsd-stable Subject: Re: [nfs] process locks in "bo_wwait" on 6.4 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: Mon, 29 Jun 2009 11:58:25 -0000 2009/6/29 pluknet : > 2009/6/26 pluknet : >> 2009/6/26 pluknet : >>> Hello. >>> >>> While building a module on nfs mounted /usr/src >>> I got an unkillable process waiting forever in bo_wwait. >> >> Small note: iface on NFS server has mtu changed from 1500 to 1450. >> Can this be a source of the problem? > > This is 100% reproducible. Lock in the same place. Any hints? Can you also show the value of ps? A precise map of what processes are doing would give an help. Also would be useful to printout traces for other threads and not only the stucked one. Thanks, Attilio -- Peace can only be achieved by understanding - A. Einstein