From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3FA8AC4321A for ; Tue, 11 Jun 2019 11:03:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AD58420820 for ; Tue, 11 Jun 2019 11:03:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=eikelenboom.it header.i=@eikelenboom.it header.b="bWAl55VN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388755AbfFKLDH (ORCPT ); Tue, 11 Jun 2019 07:03:07 -0400 Received: from server.eikelenboom.it ([91.121.65.215]:47512 "EHLO server.eikelenboom.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387899AbfFKLDG (ORCPT ); Tue, 11 Jun 2019 07:03:06 -0400 X-Greylist: delayed 1180 seconds by postgrey-1.27 at vger.kernel.org; Tue, 11 Jun 2019 07:03:06 EDT DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=eikelenboom.it; s=20180706; h=Content-Transfer-Encoding:Content-Type: MIME-Version:Date:Message-ID:Subject:From:To:Cc:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=QCeifO9zUtS8lYIt9Z5aMEE1UvJc3aqVFQ5sSYZy3wY=; b=bWAl55VNpppr1nSo99UKErndpK HtURPpZZCzodH4vv5P6FsZPU8B+Y6Z/6IAmv4pPwx7gJzAHD/FQxJzaTZt6vCXFKun6A2PYR7LBeI VkI7/h1SzUFiNGScDR/jsW/ZDn8uE0HvTAN4nwIeYvzWfApRqR6NRVualXRKKYQ4hAdw=; Received: from ip4da85049.direct-adsl.nl ([77.168.80.73]:38780 helo=[10.97.34.6]) by server.eikelenboom.it with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1haeFO-0001Qx-Nx; Tue, 11 Jun 2019 12:43:22 +0200 Cc: linux-kernel , linux-fsdevel@vger.kernel.org To: Kirill Smelkov , Miklos Szeredi , gluster-devel@gluster.org From: Sander Eikelenboom Subject: Linux 5.2-RC regression bisected, mounting glusterfs volumes fails after commit: fuse: require /dev/fuse reads to have enough buffer capacity Message-ID: <876aefd0-808a-bb4b-0897-191f0a8d9e12@eikelenboom.it> Date: Tue, 11 Jun 2019 12:46:38 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org L.S., While testing a linux 5.2 kernel I noticed it fails to mount my glusterfs volumes. It repeatedly fails with: [2019-06-11 09:15:27.106946] W [fuse-bridge.c:4993:fuse_thread_proc] 0-glusterfs-fuse: read from /dev/fuse returned -1 (Invalid argument) [2019-06-11 09:15:27.106955] W [fuse-bridge.c:4993:fuse_thread_proc] 0-glusterfs-fuse: read from /dev/fuse returned -1 (Invalid argument) [2019-06-11 09:15:27.106963] W [fuse-bridge.c:4993:fuse_thread_proc] 0-glusterfs-fuse: read from /dev/fuse returned -1 (Invalid argument) [2019-06-11 09:15:27.106971] W [fuse-bridge.c:4993:fuse_thread_proc] 0-glusterfs-fuse: read from /dev/fuse returned -1 (Invalid argument) etc. etc. Bisecting turned up as culprit: commit d4b13963f217dd947da5c0cabd1569e914d21699: fuse: require /dev/fuse reads to have enough buffer capacity The glusterfs version i'm using is from Debian stable: ii glusterfs-client 3.8.8-1 amd64 clustered file-system (client package) ii glusterfs-common 3.8.8-1 amd64 GlusterFS common libraries and translator modules A 5.1.* kernel works fine, as does a 5.2-rc4 kernel with said commit reverted. -- Sander