Received: by 10.213.65.68 with SMTP id h4csp357136imn; Mon, 26 Mar 2018 23:55:47 -0700 (PDT) X-Google-Smtp-Source: AG47ELvR+4qbFyM+BIBXpdRv+WA21hlJkls5zuastF+Yi3ibODBGSUCavTZix+rsk+xH/DUXIuSD X-Received: by 10.98.74.67 with SMTP id x64mr35613051pfa.135.1522133747566; Mon, 26 Mar 2018 23:55:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1522133747; cv=none; d=google.com; s=arc-20160816; b=zhKdnLb7Iex1SqfFDPLsR7UTqFJ7pXpoAREXDnqRTrwzBDR8dMF+N/xKxTlfQ+1fyn zzrel0o40l9t5Co4kvTx2GtExo8/SdjFiqd+s7ePMOoFI5+ut3N1IdViQw5PAiOQgJhQ 4rfyNPQKzjDyBwoISRCB+rhUSlaiNTEc6gx1FQLPVuBG6T9tD1nfx7dMsAvyMYd35FFM jmSH9BdKJG9rQw/7EQiuTDcqnaeYPPlm2fkpD1xAilj4ffVocXEV3/NdfnD5ftr+dstj AT9IPsyxoyyDxsdXPbGj1t4/oX8OuIu53T9hwNl4ZVsEsmAcaPAi/5srAMh9h4BKbUCb xRWw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:organization:from:to:references:subject:reply-to :arc-authentication-results; bh=uGDOAEmQwaG9K0Mt9UwmF4DNL0hbI5NL1UvKrZFSI4I=; b=VYgrnbxrttDwMwsbckDXLvUnJkQooywqJJy5f+VQz87YrLFfHxNXRISoR+NLIGVBmH VvkiVuwtXMTUuqAzs5uk8Ojujma/2eH5wcJLfx+IKOOvcOjqg0zHMoKCCKfVKCz077+2 XaG5s3iWh0FUbuoQINSJm9ZmaLz/07GB4h+o9HFMzEkv24lXPRseAOikY9hjuPnIcNEZ CpBtfn9Ar1d9/8WWmxWf2sAx3caIgOUGN7+jXVS4UpMIQ0tJSptCdVKW6pyfRMW7rVv9 kI7ou0m517wPs3+HkZTU76ODKyOfIrl+xT3LqGSvOWMN3KwJ/SxL60rVWPDA8lbo5b3c bpCw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id q10si444521pgr.126.2018.03.26.23.55.33; Mon, 26 Mar 2018 23:55:47 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751026AbeC0Gyo (ORCPT + 99 others); Tue, 27 Mar 2018 02:54:44 -0400 Received: from smtp05.smtpout.orange.fr ([80.12.242.127]:22292 "EHLO smtp.smtpout.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750881AbeC0Gyn (ORCPT ); Tue, 27 Mar 2018 02:54:43 -0400 Received: from [192.168.8.29] ([86.214.204.162]) by mwinf5d61 with ME id Suuf1x00V3Wl3g603uufvR; Tue, 27 Mar 2018 08:54:40 +0200 X-ME-Helo: [192.168.8.29] X-ME-Auth: ZXJpYy52YWxldHRlNkB3YW5hZG9vLmZy X-ME-Date: Tue, 27 Mar 2018 08:54:40 +0200 X-ME-IP: 86.214.204.162 Reply-To: eric.valette@free.fr Subject: Re: Periodic Null pointer access with 4.14.29-30 (while using minidlna) in sendfile system call References: <87f4360e-d118-651f-0724-c7f79a5d885b@free.fr> <2f7dab1f-82b2-2f8a-52b1-24a5e73d45d0@free.fr> To: LKML From: Eric Valette Organization: HOME Message-ID: <346ede96-04a6-feed-ce5b-a05814f8277e@free.fr> Date: Tue, 27 Mar 2018 08:54:39 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:58.0) Gecko/20100101 Thunderbird/58.0 MIME-Version: 1.0 In-Reply-To: <2f7dab1f-82b2-2f8a-52b1-24a5e73d45d0@free.fr> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/25/18 11:39 PM, Eric Valette wrote: > On 3/25/18 11:07 PM, Eric Valette wrote: >> Since a few kernels I get this error when streaming video to TV via >> minidlna: > > Checked it started with at least 4.14.25. My older kern.log.2.gz file > says before first march I did not get this error. But I removed older > kernels from my /boot directory. > > I usually update kernel regularly as they appear but sometime I have a > week or two delay. If this helps bisecting. Opened bug 199211 in bugzilla. Other user have confirmed it and even proposed a possible explanation. -- eric