Received: by 2002:a05:6a10:22f:0:0:0:0 with SMTP id 15csp55558pxk; Wed, 16 Sep 2020 18:43:48 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzG25Yv3snd1wpt9h+kCNd3RsegDyZxccu3RNCj+5mryQ7+3RX9kQn/f10eqmHvSlbpm5tE X-Received: by 2002:a17:906:95cf:: with SMTP id n15mr24306353ejy.14.1600307028453; Wed, 16 Sep 2020 18:43:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1600307028; cv=none; d=google.com; s=arc-20160816; b=MEpMu7on4+/Zt9QsFU9oS/oh4sLkzEus1Zv2cZgI35hdk2XCEtUK22MRwhTMvnkszR P62p7ATjenTj8RRciySO50WqmQDfAqHhORTys9mJwcZ+FMJXcrDkZVMbV5WKyyGUghN8 uLHEVodYZhsGBmHfpRows8x+lPJlbadGV9F5cntWbWyOLALk90CarPA1jagvlCgR2fCJ hbcGKn3oEn/GpzqDY5u0Yw18E8NXyam6R5x1WvnNBOmu5OqpLMw8NFb8XLlKQZ0d8npV UpLAJ2JBo4l8+tKkg0NOBIXsFTEUUQ5MAmkxnBaE2HhE6ZbL8j5Cmh/WXngByAskEsXE attQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:to:from:subject:message-id:in-reply-to:date :mime-version; bh=/sygnsQByh+EwXCfZR6Do2whKxLsSoSrY8B6J/yTUtY=; b=uvFDjVMGKXJTiRva6XlkPPWlwPuDVY998GUCi610F4+JsGkrGStYoRqPp0eL5WgEuk p0hF9EOm0qG/+V0UxdRDP3jhexk1O9uSXWFC/9+afLGp6A2b9+YHYzOGMpFkH8CeBgmL ZyqO9uwufDdUj2G+9ifN0ASiljrgq8xnxH6s9440mVHs5y9uypNL+RwY/z/L8cFcgyZT zkIjzXA+U1cBkMIePv9dWC91MPBUlCupuQ3v7SzFndZvdxgy8JeKAW0Qbhh/DpBOvnpC OGKxxLmYMuPo17ilWQ6KEfR4v0+zhAQKICAMQfYyhy/m+AUpJOW/8GBDLrIlxG6qdwJK arEA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id bu26si12831278edb.135.2020.09.16.18.43.25; Wed, 16 Sep 2020 18:43:48 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726117AbgIQBmM (ORCPT + 99 others); Wed, 16 Sep 2020 21:42:12 -0400 Received: from mail-io1-f80.google.com ([209.85.166.80]:54462 "EHLO mail-io1-f80.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726093AbgIQBmJ (ORCPT ); Wed, 16 Sep 2020 21:42:09 -0400 Received: by mail-io1-f80.google.com with SMTP id q6so597162iod.21 for ; Wed, 16 Sep 2020 18:42:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=/sygnsQByh+EwXCfZR6Do2whKxLsSoSrY8B6J/yTUtY=; b=ig+ULEFM4K6rcSsz8XLdsFcEahAT6qGjD0oLKPo/w0kEQd5i6etZVA+Ewpb2GHC8zG ZMszD6yjVUfrNcgeBMH0wz0FPHgraIgb8OYif5215nwtDn3sj2ETEn9cEvYVXL155Hpk YfQWhUewKZ+AYB5hBmRCnhCjCi4l/fyfnvAc35kt128dzxA+3gVBi4tFCQ1dmlY1JThD M+QZQFjFuRaVl7Bbuwy7XrJu0U/vs1ygdKvg79whIAOZIwY300kLTVKUbAA/2xI06SlL CYsn6PoFlLh0oRPysn+C761ortlnkJiMnEhviWNe4C+Yjy/K4irLtXBA7hsfKOq2WhSK G+Fw== X-Gm-Message-State: AOAM531HP3/icaKNuHQgAMVVerkpu4SI11o8mmqJUS0GDD/vy8CWafpl KHpdkCQqrmgWVKJeRKeZFecolOR1WnZvgKHtCoLOALESXCie MIME-Version: 1.0 X-Received: by 2002:a02:6607:: with SMTP id k7mr24979424jac.91.1600306928703; Wed, 16 Sep 2020 18:42:08 -0700 (PDT) Date: Wed, 16 Sep 2020 18:42:08 -0700 In-Reply-To: <000000000000391eaf05ac87b74d@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000004632a05af787ebf@google.com> Subject: Re: INFO: task hung in io_uring_flush From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this issue was fixed by commit: commit b7ddce3cbf010edbfac6c6d8cc708560a7bcd7a4 Author: Pavel Begunkov Date: Sat Sep 5 21:45:14 2020 +0000 io_uring: fix cancel of deferred reqs with ->files bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=173d9b0d900000 start commit: 9123e3a7 Linux 5.9-rc1 git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3d400a47d1416652 dashboard link: https://syzkaller.appspot.com/bug?extid=6338dcebf269a590b668 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1573f116900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=144d3072900000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: io_uring: fix cancel of deferred reqs with ->files For information about bisection process see: https://goo.gl/tpsmEJ#bisection