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 BC2B9C4332F for ; Wed, 21 Dec 2022 15:17:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232603AbiLUPRW (ORCPT ); Wed, 21 Dec 2022 10:17:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52640 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231986AbiLUPRV (ORCPT ); Wed, 21 Dec 2022 10:17:21 -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 343162182D for ; Wed, 21 Dec 2022 07:17:20 -0800 (PST) Received: by mail-io1-f72.google.com with SMTP id d24-20020a5d9bd8000000b006ee2ddf6d77so412072ion.6 for ; Wed, 21 Dec 2022 07:17:20 -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=LsL0T+3NXL0r5H78o9iGRrxxUT0PjlhzQTSCxOZ71OE=; b=VVWzDb/8ZhG2bRHSiHy3pWn7BnWt7vCib8Ktv7dbEKyX9DPfPY/PtQHbsg17SaW1gW GeabV4+v1pQ+FXa+kfm3jvuHFPC7tRVTOIx6oCpsNjox96zovS6liLkofZ1iSE3gMk9d j9PQs1CwdiZ+iGaMraN0djo5kD6aL8C9jDryx0X2948r3kSwVieuj/EVEArBgM65u/GF gqxdc/oCqsZXIaw2EgIWKsoeeuX/3uhgXe5SjLRyGFDJbrhgc+Ksi6cAesOH4VtZ9fob Z3wxeaLxNqRp8j+m49HAnznFeFpGs/pEvkWC5Jt8Vl+MQcujuuh5n7sErF2DMNZiAGZI ELwA== X-Gm-Message-State: AFqh2krsQZsHYiIe+5MNfjuzSXV14EtlaHZhGKZOPyeHKsco/77Vc7RA jgL1acqaDugxykdX4nYaN6zLYYUvL/AjLC3rhV/TjKLScrdz X-Google-Smtp-Source: AMrXdXvsdh29OLI5WS5poiu1zFMEBALeZ7KrEBdJ0CFhRjCBL6bGDlyL8wn36sarByDMP9r591OQJxHos7UMy3MvT1LpIMpeK3z6 MIME-Version: 1.0 X-Received: by 2002:a02:a40c:0:b0:38a:6d77:5dcb with SMTP id c12-20020a02a40c000000b0038a6d775dcbmr163066jal.19.1671635839570; Wed, 21 Dec 2022 07:17:19 -0800 (PST) Date: Wed, 21 Dec 2022 07:17:19 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000069608005f0580c52@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: { P5788 } 2646 jiffies s: 2841 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: d1f53b3e 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=13634a0f880000 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.