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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2F441C433F5 for ; Mon, 11 Oct 2021 20:32:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0482C60EE5 for ; Mon, 11 Oct 2021 20:32:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234896AbhJKUeJ (ORCPT ); Mon, 11 Oct 2021 16:34:09 -0400 Received: from mail-il1-f198.google.com ([209.85.166.198]:40565 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232579AbhJKUeH (ORCPT ); Mon, 11 Oct 2021 16:34:07 -0400 Received: by mail-il1-f198.google.com with SMTP id d12-20020a92680c000000b00258ec365becso10772716ilc.7 for ; Mon, 11 Oct 2021 13:32:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=69YQAoBbQKm9TqOi57aQVSWpMMSQKYJxlql/euFSSEE=; b=L16MGXCmEu6cEdjg3lhdhHW1U7Wmn2GulmkXMpmyW0H15B12PAyftzgmBlV7vWFvpE ZMAp1cRV/yBxJg7Qg1Xx709vgAZbjvKSomPFQzo9W+y7+LuVUQuyVYVjqFuWxkUlnH00 rKqgN32omYjqPASSJm0he33Queyz8ZrTFDqc2nra5iF+Vz7/7ZYiacEn09Efat+CsyHZ f4xBUmXxdGl25tYaCW1ExabDzzjLEroWzzqmekH1QLZf/vFEbotEDYVOdjvdZOQiiBWR xtFmQ3foyc+AWhjAcUGysiUiu0RvABjkaw64bK+pR1wiOgIvqdBPyxBZDuemRB+wz/pK aSfw== X-Gm-Message-State: AOAM530fGXA72iOKz2pLUJLhV1eJc6cije8NMUkBtwAGwa3vFHm46h6P YDbTwD/yFDxSYUHp4sRpjNm1CXvnkdNMJBKpmZ4EtAgtZ1A5 X-Google-Smtp-Source: ABdhPJzcQtZG+lbdZ7wjSwBKdxMjz5X9CWlcrhgIHjIyn0/T16KZ5S0OlvEh8lUj07w+vinrQxWe4QPS0wANaZSsUf/mUWXFEMsw MIME-Version: 1.0 X-Received: by 2002:a05:6e02:13c5:: with SMTP id v5mr6885528ilj.75.1633984327040; Mon, 11 Oct 2021 13:32:07 -0700 (PDT) Date: Mon, 11 Oct 2021 13:32:07 -0700 In-Reply-To: <0000000000004bda3905cb84cfc0@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000061c94a05ce199f2a@google.com> Subject: Re: [syzbot] WARNING in io_wq_submit_work (2) From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, fgheet255t@gmail.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org syzbot suspects this issue was fixed by commit: commit c57a91fb1ccfa203ba3e31e5a389cb04de5b0561 Author: Pavel Begunkov Date: Wed Sep 8 19:49:17 2021 +0000 io_uring: fix missing mb() before waitqueue_active bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=143b46bf300000 start commit: 926de8c4326c Merge tag 'acpi-5.15-rc1-3' of git://git.kern.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=37df9ef5660a8387 dashboard link: https://syzkaller.appspot.com/bug?extid=bc2d90f602545761f287 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11e4357d300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1173a663300000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: io_uring: fix missing mb() before waitqueue_active For information about bisection process see: https://goo.gl/tpsmEJ#bisection