From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756662AbbLBIJV (ORCPT ); Wed, 2 Dec 2015 03:09:21 -0500 Received: from mailout3.w1.samsung.com ([210.118.77.13]:12895 "EHLO mailout3.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752798AbbLBIJT (ORCPT ); Wed, 2 Dec 2015 03:09:19 -0500 X-AuditID: cbfec7f4-f79026d00000418a-b4-565ea72d3cff From: Pavel Fedin To: "'Eric Dumazet'" Cc: "'Sunil Goutham'" , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Sunil.Goutham@caviumnetworks.com, "'Sunil Goutham'" References: <1448961223-41888-4-git-send-email-sunil.kovvuri@gmail.com> <01d101d12c46$2de43b40$89acb1c0$@samsung.com> <1448983985.25582.35.camel@edumazet-glaptop2.roam.corp.google.com> In-reply-to: <1448983985.25582.35.camel@edumazet-glaptop2.roam.corp.google.com> Subject: RE: [PATCH 3/6] net: thunderx: Increase transmit queue length Date: Wed, 02 Dec 2015 11:09:15 +0300 Message-id: <00b101d12cd8$bd34fea0$379efbe0$@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=UTF-8 Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: AQGScnHROc58U50eD5J6ppH35rF/UQG2SVlqAT5pB6wB6Z4d1Z8N2Zgg Content-language: ru X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrLLMWRmVeSWpSXmKPExsVy+t/xa7q6y+PCDDZNYLfY9/4sm8Wmx9dY LS7vmsNmcWyBmMXlyz+YLQ583MtisajpHYsDu8eM34tYPDac6Gf12DnrLrvH5iX1Hp83yQWw RnHZpKTmZJalFunbJXBldFy5wlTQyVIx72YHUwPjZOYuRk4OCQETiV9/n7JC2GISF+6tZ+ti 5OIQEljKKPFr3z82kISQwHdGiQm300FsNgF1idNfP7B0MXJwiAhoS6x45QtSzyxwjVFi85n5 UM3nGCXuvb0C1swp4C+x69tTMFtYwE1iztbVYDaLgKpE++9bLCA2r4ClRMfmjcwQtqDEj8n3 wOLMQMsmzVvEDGHLS2xe8xbqagWJHWdfM0Ic4Sbx+IoHRImIxLR/95gnMArNQjJpFpJJs5BM moWkZQEjyypG0dTS5ILipPRcQ73ixNzi0rx0veT83E2MkEj5soNx8TGrQ4wCHIxKPLwreOLC hFgTy4orcw8xSnAwK4nweskAhXhTEiurUovy44tKc1KLDzFKc7AoifPO3fU+REggPbEkNTs1 tSC1CCbLxMEp1cAo2XmCgX2txbreNWe01LVefGBia7HhWnM4isf0ovCGF2USVftvrrlznuE1 b/ezLQsLeN2YPMuWKW5ed77p1dlIHcMFNd86psddfyM3t9C9rNr5va3G/FnsQnlNchc2l3lu yTBUiZ/itY5DcWfd7nfXN5atOiLt/fXOGu2lcRnhzluPLTz1+4CPEktxRqKhFnNRcSIAV3Q9 0pACAAA= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! > > swiotlb: coherent allocation failed for device 0002:01:08.4 size=4198400 > > CPU: 2 PID: 3655 Comm: NetworkManager Tainted: G W O 4.2.6+ #201 > > Hardware name: Cavium ThunderX CN88XX > > Are you sure 4.2.6 kernel is suitable for backporting this patch aimed > for linux-4.5 ? Why not? It's just a networking driver. And, i also have the same problem on 4.3 running as KVM guest with VFIO. Kind regards, Pavel Fedin Expert Engineer Samsung Electronics Research center Russia