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 87FE8C43334 for ; Sun, 10 Jul 2022 09:41:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229508AbiGJJlj (ORCPT ); Sun, 10 Jul 2022 05:41:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229450AbiGJJlj (ORCPT ); Sun, 10 Jul 2022 05:41:39 -0400 Received: from mail-wr1-f41.google.com (mail-wr1-f41.google.com [209.85.221.41]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 875E212620 for ; Sun, 10 Jul 2022 02:41:37 -0700 (PDT) Received: by mail-wr1-f41.google.com with SMTP id f2so3560034wrr.6 for ; Sun, 10 Jul 2022 02:41:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:references:from:in-reply-to :content-transfer-encoding; bh=xEuiyabvsQDb6WJ6qFrmFNq916brfyyk43k/L2CuaG0=; b=n7mm5erXKD+W37oxaFirbrAjN+mj2L+BDDdgcezh56AZokDYxDC1SaAPYR20J4OX4q Y8OvEJpMehbyF4VkMQ3DD6VqFJrtKT1C5T1H9wzy5NI2G+mrnOyVFSEVS0ko5LwHzVb1 3evD+4NzewWjIt+gOlbEhnon18a1F9OD9Sey1A+aFZDIPgL7Vy1umMWbbAeDzuTgo8Uy NWZlYDPEu/KHN1ZpRa4Gxk6FC70MGgl92fbG2KAhHmLm9hles8cZgVoeJ862dYylN+7d k9WJA8+zGZ1qYyuH6O3K1a6rmD7jTPn1rui+e8RhmcmeD9sMdS6xpNWE7Y/tFvcuzbGK fQJQ== X-Gm-Message-State: AJIora+56LXtjMCKa7013T4c1NnsSrfp9vsoW10pAftHrpirU/tPs6fT i5/9WfWne8Xf90iAczuvMCQVsTqpIhQ= X-Google-Smtp-Source: AGRyM1tnYHU2kuKbNjQiVLMiKob0GgudW3LLlovKxZOzecsGCXewdaZdgCiaGIy0Ixz+wQEbAeoUhQ== X-Received: by 2002:adf:c64c:0:b0:21a:7a3:54a4 with SMTP id u12-20020adfc64c000000b0021a07a354a4mr11641836wrg.163.1657446095973; Sun, 10 Jul 2022 02:41:35 -0700 (PDT) Received: from [192.168.64.180] (bzq-219-42-90.isdn.bezeqint.net. [62.219.42.90]) by smtp.gmail.com with ESMTPSA id v18-20020a5d6792000000b0021d4155cd6fsm3235238wru.53.2022.07.10.02.41.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 10 Jul 2022 02:41:35 -0700 (PDT) Message-ID: <5ce566fd-f871-48dc-1cb7-30b745c58f05@grimberg.me> Date: Sun, 10 Jul 2022 12:41:33 +0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: [bug report] blktests nvme/tcp triggered WARNING at kernel/workqueue.c:2628 check_flush_dependency+0x110/0x14c Content-Language: en-US To: Yi Zhang , linux-block , "open list:NVM EXPRESS DRIVER" References: From: Sagi Grimberg In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org > Hello > > I reproduced this issue on the linux-block/for-next, pls help check > it, feel free to let me know if you need info/test, thanks. These reports are making me tired... Should we just remove MEM_RECLAIM from all nvme/nvmet workqueues are be done with it? The only downside is that nvme reset/error-recovery will also be susceptible for low-memory situation... Christoph, Keith, what are your thoughts?