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=-2.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 B47EBC433DF for ; Sat, 4 Jul 2020 14:25:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 867CC207CD for ; Sat, 4 Jul 2020 14:25:36 +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="o1r5vWX9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726488AbgGDOZf (ORCPT ); Sat, 4 Jul 2020 10:25:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726258AbgGDOZf (ORCPT ); Sat, 4 Jul 2020 10:25:35 -0400 Received: from mail-pf1-x444.google.com (mail-pf1-x444.google.com [IPv6:2607:f8b0:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 42475C061794 for ; Sat, 4 Jul 2020 07:25:35 -0700 (PDT) Received: by mail-pf1-x444.google.com with SMTP id x3so9566087pfo.9 for ; Sat, 04 Jul 2020 07:25:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=bonV9lqc6J6a0nZgeeGxa+83b8+hl9OcR8Wa/VCq8tM=; b=o1r5vWX9MAJGE/id2/vJlnRwnCFtxRrkLYOrq0tx6uIIWtGxi5Ugv8n1MbX6+ImK3y gdGVHigbHVYQxrp2Y0ASha7fy6XkFHnbrS8J/ZxU/aJJuhhqV+EM4OwtPFLtKYU6BpqH +7atSTW71DI7qksOe2ebTWysLtimQ59OjK+olU+EMQzscKvQ9v8DpJZbfDWtx3ox2AVK VCTEnEj7hg46BkYmdrp/ec17FuKD8648KW/l+vkvu1zpoG9V2WBG572mIHYBUfdZIanA K+eVCkMEUtRenDmaCY7z4vi8yUFWZLscCjHBJl8Vydkoa3cV/HKQE0WhKJ2C6jSSu6Y3 EB4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=bonV9lqc6J6a0nZgeeGxa+83b8+hl9OcR8Wa/VCq8tM=; b=ZhO4Ge9koDATGaB2GR/2c0Bj67vN9mno/AcPDuYmF87W4Ao3+cSoXSJlBeBR/XkFWM ynxQK9QlDr227n/cHHFH/80H0KBUyzTH4GntRacUTLApC8fPnV1D57gFboAJHMXrRPhg ukMib4sZ0iXl8db0kneuMaSKQg4hWkgUHgZuQBFhJk1DlgHeLnI3XZpyaDvz4w1glHT4 wbgu5XoWlqkto8F52XXo4TS0m2s/U/q1POOg18GjS5Ys2T+YeaYlMnMM4vTlGZmZY4AV 0OyTy8btAQsbXjKVOOG06FSahFcKeYq0PaHA86LZF/fVpMwhO9q8YbcfsJuZ2Anqx0am zsrA== X-Gm-Message-State: AOAM5325iJgeUIvgWkugGwgTUnKJsy/Y9LFQl4aHd6gTJT04VjPzlUyZ R0CVnPFoxX4OxUtYw3DTfvTN4g== X-Google-Smtp-Source: ABdhPJzq+GqQI/UMescL2+euv57g+aZqpEwQcobWy287BAZOLuEHI/kkKzIiUbLK3nIKKkM1cb4MZQ== X-Received: by 2002:a63:1119:: with SMTP id g25mr32374289pgl.126.1593872734572; Sat, 04 Jul 2020 07:25:34 -0700 (PDT) Received: from [192.168.1.182] ([66.219.217.173]) by smtp.gmail.com with ESMTPSA id io3sm7942177pjb.22.2020.07.04.07.25.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 04 Jul 2020 07:25:33 -0700 (PDT) Subject: Re: regression with commit "null_blk: add helper for deleting the nullb_list" To: Yi Zhang , chaitanya.kulkarni@wdc.com Cc: CKI Project , linux-block@vger.kernel.org, Rachel Sibley References: <44170938.33551884.1593862676831.JavaMail.zimbra@redhat.com> From: Jens Axboe Message-ID: <1b60cae2-c135-5aa1-1127-2ef89c320f43@kernel.dk> Date: Sat, 4 Jul 2020 08:25:32 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: <44170938.33551884.1593862676831.JavaMail.zimbra@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 7/4/20 5:37 AM, Yi Zhang wrote: > Hello > > commit[1] on linux-block/for-next introduced one regression which lead kernel panic, could you help check it? > > [1] > commit a65dee60e5384a648bc49c4ffbd3960d3fa354b0 (origin/for-5.9/drivers) > Author: Chaitanya Kulkarni > Date: Thu Jul 2 18:31:30 2020 -0700 > > null_blk: add helper for deleting the nullb_list Chaitanya, did you even test your patch? + nullb = list_first_entry(nullb_list.next, struct nullb, list); I'm guessing no... Dropped it. -- Jens Axboe