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=-7.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 AAFA6C11D0B for ; Thu, 20 Feb 2020 16:17:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7CDCB20659 for ; Thu, 20 Feb 2020 16:17:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="nvWq+jMy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727989AbgBTQRZ (ORCPT ); Thu, 20 Feb 2020 11:17:25 -0500 Received: from mail-pl1-f180.google.com ([209.85.214.180]:39013 "EHLO mail-pl1-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726871AbgBTQRZ (ORCPT ); Thu, 20 Feb 2020 11:17:25 -0500 Received: by mail-pl1-f180.google.com with SMTP id g6so1731676plp.6 for ; Thu, 20 Feb 2020 08:17:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=aTvzlQ1bdP4PNCjnPVAMkaQoxvTBbjLsPvkTFe+LKb0=; b=nvWq+jMykZ+ChbWv2Fnkg274mMN6VE4t2QhYgTU2AgLZhEZx/h/wsZazAff0LvrNg3 ka9zt+YCgyKA6kifcTiCTUxak3K8vA0AmmOAsftVf03k3JqrJS5EniUXYfju6leHAR+k o2QMGaGjpI4GJWxb2ABiGpMyVlgZyZzoKFXY0m9n5wKxBP+lYP2jOA9HBn18xa/uQNAn wpL2ZhsUbReFxvSbJ1eU9Kcg0HaK/8eBxQX6DEdquSmRa1mbU5Sqn15GGP/vVlreu1u5 ATz+oc7Wn0YY01zMBW1cY1rxdw7DtM2Wij5qx//5CI02h3RYKZLb32vEUoXiFwsg77XU kBaA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=aTvzlQ1bdP4PNCjnPVAMkaQoxvTBbjLsPvkTFe+LKb0=; b=UwNWJiCJC9yFicublTx4q1GEYhPECLUlmaG3DBMo0yGUoyraz230+I+adO29WRf21J 2Pn5G1ry5DnHgRpisZxMyi1kF0RVC0e7XXDGufsjUw3y4TiOWrwUfXiPYjzACGcBtMe9 byA7epkPZgg+VJnKNrfGmPCP02JHQcinRG81Wi0zNh49u1dDDUvtw47Yt8eNlcAMStYP p8TjV7U0xFQ30Ol9nyZpIkOKcw85cU/dfxNPywsZJoAe9vox2C7pJmvw8nmWreDn59Lg nR/pZKtnWr8XCipb7s0CJXhnittSopbgV5iFvPwO7cC02vUntldtO49Aj4lTV+cw5cuk S2GQ== X-Gm-Message-State: APjAAAXndn1XtkGXJ+0tU7jyHSwUFEIhyYJn9h9a9e5QUxKfCuU/iRj8 pvOvdUaPSnJwk8gICU6REcEY5g== X-Google-Smtp-Source: APXvYqyJOuyJP9m3Og5/wB5332/pqM1tY9dTuG16GwPO8XFEFNmLLwCMczigNiJ+f6EQlZ3riCX+KQ== X-Received: by 2002:a17:902:fe8d:: with SMTP id x13mr32697204plm.232.1582215444449; Thu, 20 Feb 2020 08:17:24 -0800 (PST) Received: from ?IPv6:2605:e000:100e:8c61:8495:a173:67ea:559c? ([2605:e000:100e:8c61:8495:a173:67ea:559c]) by smtp.gmail.com with ESMTPSA id m15sm4240071pgn.40.2020.02.20.08.17.21 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 20 Feb 2020 08:17:22 -0800 (PST) Subject: Re: crash on connect To: Glauber Costa , io-uring@vger.kernel.org, Avi Kivity References: From: Jens Axboe Message-ID: <5e4904d5-e7fc-c079-e112-5b978c8fa129@kernel.dk> Date: Thu, 20 Feb 2020 08:17:20 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: io-uring-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On 2/20/20 7:19 AM, Glauber Costa wrote: > Hi there, me again > > Kernel is at 043f0b67f2ab8d1af418056bc0cc6f0623d31347 > > This test is easier to explain: it essentially issues a connect and a > shutdown right away. > > It currently fails due to no fault of io_uring. But every now and then > it crashes (you may have to run more than once to get it to crash) > > Instructions are similar to my last test. > Except the test to build is now "tests/unit/connect_test" > Code is at git@github.com:glommer/seastar.git branch io-uring-connect-crash > > Run it with ./build/release/tests/unit/connect_test -- -c1 > --reactor-backend=uring > > Backtrace attached Perfect thanks, I'll take a look! -- Jens Axboe