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[2620:137:e000::1:20]) by mx.google.com with ESMTP id r11-20020a170902c60b00b0019ceb4b753fsi15218826plr.26.2023.04.12.07.01.41; Wed, 12 Apr 2023 07:02:04 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@szeredi.hu header.s=google header.b=nNjqd5iA; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=szeredi.hu Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230148AbjDLNwz (ORCPT + 99 others); Wed, 12 Apr 2023 09:52:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55090 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229769AbjDLNwy (ORCPT ); Wed, 12 Apr 2023 09:52:54 -0400 Received: from mail-ej1-x633.google.com (mail-ej1-x633.google.com [IPv6:2a00:1450:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 05CF519BE for ; Wed, 12 Apr 2023 06:52:51 -0700 (PDT) Received: by mail-ej1-x633.google.com with SMTP id sg7so40443759ejc.9 for ; Wed, 12 Apr 2023 06:52:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=szeredi.hu; s=google; t=1681307569; x=1683899569; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=6UePRKxgzqqhv0WlMFum5WhT8Fo7qQq0HQsLtF573Ck=; b=nNjqd5iAbQJvG1BOO2ScAd8XxlysS0/k6N6xZoBrsOnwZiCxolUsWjUzeojO9Bw/BA Q/YxqlyLYlP/QnraJ9W1MM7DjQPP2yd3h/w28kk+zee3irMayubbsOs1XWitUfr9H4n8 fPPBQVcFVDEIN9WNmA24dIRWyVwqfNeBEtEqQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1681307569; x=1683899569; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=6UePRKxgzqqhv0WlMFum5WhT8Fo7qQq0HQsLtF573Ck=; b=YILWB6Q1NpmQ/JlGUTDxq6k5PSO+PgGrR9HOMJpVNXSQDrQxe618KJIWPSTIs7Ff7Q FI0lCWRmrJTqtxspq3q6k8m7GMPCiBi+CFCMkvjUSQOXJi++qafcpFYKkD5/RtyWREET Zig46UkLraH2JAi/CN+cg5woAPoX/5EZAWF2FeweyNNJtGXTwOs3Z+VPAhGOSCimaS75 i1/BIUhaN+5W28HrvHPw6CMr7MqguvCppQRt2a+GqIm7XJy4mr1TsTtS5FVZA01IS5Mx em4Xq46RrzDG3I1D9OphpGTc31ATH65NcfH728M03hAbzeXNXZq2QetKvpFOBiQ87sGj yH0g== X-Gm-Message-State: AAQBX9ey0Jlu/zBIa+u+Bzj2sNHMPhcUsGOmU2opNV9fa9yoDdzD4ODN xsFXmmKnis+vuSRHPHj5EA+GQVnbXmAjfwk7j9gdeA== X-Received: by 2002:a17:907:d609:b0:92b:ec37:e4b7 with SMTP id wd9-20020a170907d60900b0092bec37e4b7mr1322484ejc.14.1681307569396; Wed, 12 Apr 2023 06:52:49 -0700 (PDT) MIME-Version: 1.0 References: <000000000000d5a93805f8930638@google.com> In-Reply-To: <000000000000d5a93805f8930638@google.com> From: Miklos Szeredi Date: Wed, 12 Apr 2023 15:52:37 +0200 Message-ID: Subject: Re: [syzbot] Monthly fuse report To: Dmitry Vyukov Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, syzbot Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 5 Apr 2023 at 11:00, syzbot wrote: > > Hello fuse maintainers/developers, > > This is a 30-day syzbot report for the fuse subsystem. > All related reports/information can be found at: > https://syzkaller.appspot.com/upstream/s/fuse > > During the period, 0 new issues were detected and 0 were fixed. > In total, 8 issues are still open and 34 have been fixed so far. > > Some of the still happening issues: > > Crashes Repro Title > 146 Yes INFO: task hung in fuse_simple_request > https://syzkaller.appspot.com/bug?extid=46fe899420456e014d6b > 26 Yes INFO: task hung in lookup_slow (3) > https://syzkaller.appspot.com/bug?extid=7cfc6a4f6b025f710423 > 13 Yes INFO: task hung in walk_component (5) > https://syzkaller.appspot.com/bug?extid=8fba0e0286621ce71edd Hi Dmitry, These all look like non-kernel deadlocks. AFAIR syzbot was taught about breaking these by "umount -f" or "echo 1 > /sys/fs/fuse/connections/$DEV/abort", right? I wonder why they are still triggering a report then. Thanks, Miklos