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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 960D9C4332F for ; Wed, 21 Dec 2022 16:10:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229596AbiLUQKb (ORCPT ); Wed, 21 Dec 2022 11:10:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229578AbiLUQKa (ORCPT ); Wed, 21 Dec 2022 11:10:30 -0500 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A1508218B1 for ; Wed, 21 Dec 2022 08:10:29 -0800 (PST) Received: by mail-io1-f72.google.com with SMTP id o16-20020a056602225000b006e032e361ccso7000071ioo.13 for ; Wed, 21 Dec 2022 08:10:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=la4vkjbmp/hoBiwyPidnlDXslDjnZqNzD4iiQiAwR94=; b=gVSuPQXwpu0IhiXKj0lLZrigIxEO+R41qV11WXbTum6caaep4TMI88FN5GcviXc2ry R7cQcnBVRTpKkZD5wRy96Ru89k7RRjzn9xzETQUZrhrVD8FssaMFVfosou5haYfFZemb ag5Zyw+7toRog8kL6pZ3PiL3WSIcP3T+tqLD9fgegXKPM+xOcWwAUu5Z7hq7HXW9iHzo LYCvcMSEKz6a5IBscTKp6RseEByh5IhhZ48uOAlJB5KdX7MfCBfun5RB4AxBHX36YbSF A3GmuGnWWZNTwKGBHxE8dfcdT1juxwnoL5gueQiszILuOvXj9LOGt/UE7RtpELQaYTfK 58CQ== X-Gm-Message-State: AFqh2kpN9dbLAM3PNPbKSEK8pDQoDIfflJrjIz+3oFfrL7q/FMR4QEP6 iHp77Dp6blRmDwZk2jqicndFHv8a0zNFQ/ZcfsFltVORVC3/ X-Google-Smtp-Source: AMrXdXvTaIHDV02F+gBN/7BxU/Jg7ssMmiZ9326P326GYCmN7SMnumn5KR5+R2sxh6DqFQF8gNFqXa0r5U+3Zef+PScetgItthKv MIME-Version: 1.0 X-Received: by 2002:a92:d602:0:b0:30b:dae5:c56 with SMTP id w2-20020a92d602000000b0030bdae50c56mr101654ilm.99.1671639029041; Wed, 21 Dec 2022 08:10:29 -0800 (PST) Date: Wed, 21 Dec 2022 08:10:29 -0800 In-Reply-To: <7c89b1c8-f012-3965-ab77-3bc19b3cedaa@kernel.dk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000084d53b05f058cabc@google.com> Subject: Re: [syzbot] WARNING in io_sync_cancel From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, 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 Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: INFO: rcu detected stall in corrupted rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P5778 } 2634 jiffies s: 2893 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: 071531e9 io_uring/cancel: mark task running before re-.. git tree: git://git.kernel.dk/linux.git io_uring-6.2 console output: https://syzkaller.appspot.com/x/log.txt?x=13042ae8480000 kernel config: https://syzkaller.appspot.com/x/.config?x=2edd87fe5cbdf43f dashboard link: https://syzkaller.appspot.com/bug?extid=7df055631cd1be4586fd compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Note: no patches were applied.