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=-9.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 F004EC433DF for ; Thu, 13 Aug 2020 03:57:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D608A206A4 for ; Thu, 13 Aug 2020 03:57:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726600AbgHMD5G (ORCPT ); Wed, 12 Aug 2020 23:57:06 -0400 Received: from mail-il1-f198.google.com ([209.85.166.198]:42202 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726546AbgHMD5F (ORCPT ); Wed, 12 Aug 2020 23:57:05 -0400 Received: by mail-il1-f198.google.com with SMTP id z1so3437722ilz.9 for ; Wed, 12 Aug 2020 20:57:04 -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=818BGdNc1wvnUSaZirTtzYWcZvgSsVpOYq9GYar7pzo=; b=B7i1bL6DhnnWg0we3qs/pvs0/tgk69cgYEIo/AEnCjYqJ5gymdhWVgzFiJLPqEJtW/ eA6i7lYJ1+C1s/W7jKfDINWSUvz/11qCaLEsEyFOaQmj7EIgQ34SYfjdgGrMN6cz+UrT GHF4Ct4DrOEwSDavNWFi1l56D9lB051jGlMlzEbSIPZh+yIuSPrKsKQwIviHqWLmsnO0 RK+LLmZ5J4P1Ejh0zBYdmepkBKUTd64Y4JOwVhFaYdBWHYYjpTez4od8fQaEfWYFt9dX kQzxy1F7Fexd7/cZ40o9gVuM0p0Lxb8U4gaVwGzDA4FNkssH4UpUJ5BRE4J2snIcmHim P1Tg== X-Gm-Message-State: AOAM530B4YJsdOdXVlg4M538sXk3ORSplQF2JJ++Vkvzqp39S82LIa4G kzUiBwYU9AL/FtcFLNBTA14Hhwz9JKCFVp3UzeELl63Av2L0 X-Google-Smtp-Source: ABdhPJxyW2a+ykA+fUEC8D6mFHSlTwIHpmNmLpjhnj+1O5R02Uizom5WTc4bNxK6AVfdyCvjg+GBZ9zseGC71qHLHgVFHLNbJAN8 MIME-Version: 1.0 X-Received: by 2002:a92:874a:: with SMTP id d10mr2849478ilm.273.1597291024427; Wed, 12 Aug 2020 20:57:04 -0700 (PDT) Date: Wed, 12 Aug 2020 20:57:04 -0700 In-Reply-To: <00000000000084b59f05abe928ee@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001d3cbb05acba4cc2@google.com> Subject: Re: INFO: task hung in pipe_release (2) From: syzbot To: James.Bottomley@HansenPartnership.com, amanieu@gmail.com, arnd@arndb.de, benh@kernel.crashing.org, bfields@fieldses.org, borntraeger@de.ibm.com, bp@alien8.de, catalin.marinas@arm.com, chris@zankel.net, christian@brauner.io, corbet@lwn.net, cyphar@cyphar.com, dalias@libc.org, davem@davemloft.net, deller@gmx.de, dvyukov@google.com, fenghua.yu@intel.com, geert@linux-m68k.org, gor@linux.ibm.com, heiko.carstens@de.ibm.com, hpa@zytor.com, ink@jurassic.park.msu.ru, jcmvbkbc@gmail.com, jhogan@kernel.org, jlayton@kernel.org, kvalo@codeaurora.org, linux-alpha@vger.kernel.org, linux-api@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux@armlinux.org.uk, linux@dominikbrodowski.net, linuxppc-dev@lists.ozlabs.org, luis.f.correia@gmail.com, luto@kernel.org, martink@posteo.de, mattst88@gmail.com, ming.lei@canonical.com, ming.lei@redhat.com, mingo@redhat.com, monstr@monstr.eu Content-Type: text/plain; charset="UTF-8" Sender: linux-arch-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org syzbot has bisected this issue to: commit fddb5d430ad9fa91b49b1d34d0202ffe2fa0e179 Author: Aleksa Sarai Date: Sat Jan 18 12:07:59 2020 +0000 open: introduce openat2(2) syscall bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=164e716a900000 start commit: 6ba1b005 Merge tag 'asm-generic-fixes-5.8' of git://git.ke.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=154e716a900000 console output: https://syzkaller.appspot.com/x/log.txt?x=114e716a900000 kernel config: https://syzkaller.appspot.com/x/.config?x=84f076779e989e69 dashboard link: https://syzkaller.appspot.com/bug?extid=61acc40a49a3e46e25ea syz repro: https://syzkaller.appspot.com/x/repro.syz?x=142ae224900000 Reported-by: syzbot+61acc40a49a3e46e25ea@syzkaller.appspotmail.com Fixes: fddb5d430ad9 ("open: introduce openat2(2) syscall") For information about bisection process see: https://goo.gl/tpsmEJ#bisection