From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Fri, 08 Dec 2017 22:16:36 +0100 (CET) Received: from mail-io0-x233.google.com ([IPv6:2607:f8b0:4001:c06::233]:39237 "EHLO mail-io0-x233.google.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S23990474AbdLHVQaCDFdX (ORCPT ); Fri, 8 Dec 2017 22:16:30 +0100 Received: by mail-io0-x233.google.com with SMTP id h12so3754455iof.6 for ; Fri, 08 Dec 2017 13:16:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:subject:from:to:cc:date:in-reply-to:references :mime-version:content-transfer-encoding; bh=8JINXylPt24gsOr5tWR0CbYPgLxnS4mhBudiuQ3WdUc=; b=SoJnCGNajr5HdKVb59Wwb66tig2hZ0oiaKjk09pOx5ofMdnKgoX171oAezOc5LCxTS CQxOnSQeXIahCHe7wJctN0jfVynb7BUz5Mc9eT+6JwNCJOuEhAumRL4FqF9y4TLgUn4l 32jNfiu7htF8Wm6HxELBkzu4gmg4PtLer2oPxbgIRNgLCjOLWuOxcmUMqbYXm4GQUFgT FBO8CvEA4NGYJXm472TgKukmEya4wXwtIOkOiyQMRz0nVwxoTJ4cVIhgI99i3v4l8z3y 2mymFtOUgibfHQtSzrB0SPzQVGOMAPoBB8zsgTVsTwuWXF+9zfRZjMLdCuTDjeNdmKJx tl0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:subject:from:to:cc:date:in-reply-to :references:mime-version:content-transfer-encoding; bh=8JINXylPt24gsOr5tWR0CbYPgLxnS4mhBudiuQ3WdUc=; b=krTvmw1IU4aBTRir7+hwc3L4pBddZCaho+69R2CqzUvtkQ9S/ILqxvJwIhkT+n9XcK Sfye8tcd23DIUKMSxhx0pjk5OF82xik8DF9bjESZSmoC63E0fEtYfdUAuHsIwzqkY+XF mAw//Rm+kEc8U1S8ii1BRkUzJ7WWn1P9Jg7uF5vmbBnsoPXIkxb6vaYwf1bHFpWjxiAc LKYIPo0aX9MqXM817v8byay6UNEXeen47t2d19g/XJlaF7GxVLtXzoOPGYGQ5MjU+bVx 9fcWqteBDgiJiDllry66gHn4oJ3HYwIQzwhN/WJ18TIS+JymAEKJV5iq4i0bhf6Uvdtb KTHg== X-Gm-Message-State: AJaThX69yTWlygQwt8mLiQWY6t29puWtw60Ns8rtgAh5G0iN6G2dVSMY 47oTgdgwFBA5ObVIgjkEIV8= X-Google-Smtp-Source: AGs4zMayuEoXL7AIbjW5c4mz8kt3n+tLwF2W8T8QJhN6uom5HfCin+Cstdh4bXKOXpKSDyKpezh7nw== X-Received: by 10.107.9.223 with SMTP id 92mr42710172ioj.16.1512767783736; Fri, 08 Dec 2017 13:16:23 -0800 (PST) Received: from ?IPv6:2620:15c:2c1:100:3fe9:f33:c853:df11? ([2620:15c:2c1:100:3fe9:f33:c853:df11]) by smtp.googlemail.com with ESMTPSA id m123sm3958986iom.71.2017.12.08.13.16.22 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 08 Dec 2017 13:16:22 -0800 (PST) Message-ID: <1512767781.25033.30.camel@gmail.com> Subject: Re: NFS corruption, fixed by echo 1 > /proc/sys/vm/drop_caches -- next debugging steps? From: Eric Dumazet To: Matt Turner Cc: Eric Dumazet , "linux-mips@linux-mips.org" , linux-nfs@vger.kernel.org, Paolo Abeni , Hannes Frederic Sowa , "Peter Zijlstra (Intel)" , Thomas Gleixner , Ingo Molnar , Manuel Lauss , LKML , netdev Date: Fri, 08 Dec 2017 13:16:21 -0800 In-Reply-To: References: <1512741164.25033.28.camel@gmail.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.22.6-1+deb9u1 Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 61381 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: eric.dumazet@gmail.com Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On Fri, 2017-12-08 at 12:26 -0800, Matt Turner wrote: > > Thanks for the quick reply! > > I tried the patch on top of master, but unfortunately the corruption > still occurs. You might try replacing in sbdma_add_rcvbuffer() sb_new = netdev_alloc_skb(dev, size); by  sb_new = alloc_skb(size, GFP_ATOMIC); Maybe the device does not like having a frame spanning 2 pages. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: NFS corruption, fixed by echo 1 > /proc/sys/vm/drop_caches -- next debugging steps? Date: Fri, 08 Dec 2017 13:16:21 -0800 Message-ID: <1512767781.25033.30.camel@gmail.com> References: <1512741164.25033.28.camel@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Cc: Eric Dumazet , "linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org" , linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Paolo Abeni , Hannes Frederic Sowa , "Peter Zijlstra (Intel)" , Thomas Gleixner , Ingo Molnar , Manuel Lauss , LKML , netdev To: Matt Turner Return-path: In-Reply-To: Sender: linux-nfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: netdev.vger.kernel.org On Fri, 2017-12-08 at 12:26 -0800, Matt Turner wrote: > > Thanks for the quick reply! > > I tried the patch on top of master, but unfortunately the corruption > still occurs. You might try replacing in sbdma_add_rcvbuffer() sb_new = netdev_alloc_skb(dev, size); by  sb_new = alloc_skb(size, GFP_ATOMIC); Maybe the device does not like having a frame spanning 2 pages. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html