From owner-freebsd-stable@freebsd.org Sat Mar 5 11:21:27 2016 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D3313A09C87 for ; Sat, 5 Mar 2016 11:21:27 +0000 (UTC) (envelope-from trtrmitya@gmail.com) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id B5D04C0A for ; Sat, 5 Mar 2016 11:21:27 +0000 (UTC) (envelope-from trtrmitya@gmail.com) Received: by mailman.ysv.freebsd.org (Postfix) id B4EFAA09C86; Sat, 5 Mar 2016 11:21:27 +0000 (UTC) Delivered-To: stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B484CA09C85 for ; Sat, 5 Mar 2016 11:21:27 +0000 (UTC) (envelope-from trtrmitya@gmail.com) Received: from mail-lb0-x229.google.com (mail-lb0-x229.google.com [IPv6:2a00:1450:4010:c04::229]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 3E123C08 for ; Sat, 5 Mar 2016 11:21:27 +0000 (UTC) (envelope-from trtrmitya@gmail.com) Received: by mail-lb0-x229.google.com with SMTP id x1so86882280lbj.3 for ; Sat, 05 Mar 2016 03:21:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:content-transfer-encoding:subject:message-id:date:to :mime-version; bh=MmxIDF21O8KybZj08UueFoQkyf1TQCZEdxSgFJ0bYGQ=; b=aRPwhKNjhLk7p7dyfVZyXw565i77icEsgBvT9gC20R4cBDG3SWbsrceTU4B+L189Tz SagSavKk8SplGR68roymKLjhG8Z29KsD+S57RKee+5zhdTOAY29LnswL7dnhUdeojc2b gpIcmlUv2GwwWBaSEbfoK3c+vY/z5BgO9n3wtKNbTw4g2hU67xTxbi//DUqR1MBue91k yA6kB+QV468MLXy8bgux5TnP16nieeHq+Tf7XGBeUkJvuYkYOWxIeRdJuAKu4umPrOoS mqIjqJmKrP1ZIUgiyLcmaRs4GQRNlTsYMZQAlPcc+S0vFKt4d6xCU+bGPtqr8cqxGWfP SYTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:content-transfer-encoding:subject :message-id:date:to:mime-version; bh=MmxIDF21O8KybZj08UueFoQkyf1TQCZEdxSgFJ0bYGQ=; b=SJmEZ7zQliaYkmVqPyyTfhHGkS7xLaToQejLSWBTwpOsunfin0QjVJWO5xcFq1fnwg t7zxK11T4cDMUFNjD+v0AzATABm3mXjGEeie3rPALluz6fFxhfZD7d09hMGE1AugSv6F YJKhNjEWi9kkdDvs3SKdaHuP9DmmYMXkhYBle9tTN8FkqmMv/crF7Esne5vPrPxvs6Os FvzDICk5YKqAeJ2EjmZjQPUHSjHfFhGMOUItqLxdMHnBu0TmUoq93til+/3RVVDmL0wR bowatsaczj93rYMhNowlDGJ875bW5QW6mIY+PtUGAxVEpCJ7GcY0+O1HHbonnClNDGzs 2XQQ== X-Gm-Message-State: AD7BkJIsKPRJoUgqjJ4pktJXI5rVRtvCdYxKV2078lSkhJS5qN0OaxeL3bcRC63NkXhuvQ== X-Received: by 10.25.169.82 with SMTP id s79mr4830370lfe.47.1457176885356; Sat, 05 Mar 2016 03:21:25 -0800 (PST) Received: from [10.0.1.4] (broadband-5-228-251-240.nationalcablenetworks.ru. [5.228.251.240]) by smtp.gmail.com with ESMTPSA id rp10sm1260950lbb.13.2016.03.05.03.21.23 for (version=TLSv1/SSLv3 cipher=OTHER); Sat, 05 Mar 2016 03:21:23 -0800 (PST) From: Dmitry Sivachenko Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Subject: nfs_getpages: error 4 Message-Id: Date: Sat, 5 Mar 2016 14:21:22 +0300 To: FreeBSD Stable ML Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) X-Mailer: Apple Mail (2.3112) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 05 Mar 2016 11:21:28 -0000 Hello, I am running a number of machines with /home mounted via nfs (FreeBSD = 10.3-PRERELEASE #0 r294799, rw,bg,intr,soft). Sometimes I get the following messages in syslog: nfs_getpages: error 4 vm_fault: pager read error, pid NNN (myprog) After that I see I lot of processes stuck in "pfault" state (these are = computational processes which use some files from NFS mount), they use = 0% of CPU after that. On NFS server machine I see nothing strange in logs. procstat -kk for = such stuck processes shows: PID TID COMM TDNAME KSTACK = =20 85274 102056 myprog - mi_switch+0xbe = sleepq_wait+0x3a _sleep+0x287 vm_waitpfault+0x8a vm_fault_hold+0xdd0 = vm_fault+0x77 trap_pfault+0x180 trap+0x52c calltrap+0x8 What can be the reason of this? Thanks.=