Received: by 2002:ad5:4acb:0:0:0:0:0 with SMTP id n11csp2387414imw; Sun, 17 Jul 2022 07:45:01 -0700 (PDT) X-Google-Smtp-Source: AGRyM1uOuVTiBB9M1AWPz4YBgPLSbsiBWLqOhVNGEckwEDqvikC7J4R/bfy/i/n7GF+rizuSNsQ8 X-Received: by 2002:a17:902:edc4:b0:16c:d2ef:7fd2 with SMTP id q4-20020a170902edc400b0016cd2ef7fd2mr9884673plk.160.1658069101177; Sun, 17 Jul 2022 07:45:01 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1658069101; cv=none; d=google.com; s=arc-20160816; b=sUIPPAvoBZSZdcz7flh8YuF65zPicH987ebfoLVtKt9I5bHkZYXeYznNYynLe0Ckry zpunFIVfdsAGTGA2aGsNm0IJa55CsQPH80KCApd0aOV45v5LKgc5wxEtBnCnUWXyMW4z gEtf3FbEL3kuT2RQJpaVsGS+eQPlUksUR/4UOhvgxRa93PD5Dvqy15o3exwhU8vl9k1V sqKJCHofj6THcUUH/dL6djPDxc3wyiP6aRGhzI3LT1kKauTFiY7i04+MkJ3UskliNM3i UClrE9ZoHyFulliAaXI7UPK3lHwTPdIrBCg1uj8O3KTwG9YNVOfx7OGMfGKJHIa44T4g UsoA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=appXrCLeiKBw8gZ99Meg5Mt+UfRWhJRs8SCDv4bEiPo=; b=sWD53mnKCJzPcdngSSm+mRtnYp1qPEhTgFjvxaGm6jfQfFZnaDD+vrB8y4MvJ0r10K msA8RlD5+nkoV+qguMu6AJmr8Rix6C2o2BWKZWYO9L8dAmHYvZEdK47mRkhpg9A32jcy 70MyOvZMacp64a+ovJOFMdpAzqN08h90DOn5d/YD0qepDzCjJJ86rBjTY1+IfkWUNC79 /e4/dF3fkhADEuO4bYPe1dEUOdkQum6GXokETZMvQW0by9uXPJF+tbVVmaRr2kRffrN1 iDAzV0cfj4SjCZU8lMACUFj2pu019olUVpInVI0Gxtr7WHq8pR9TBAMvrVHwc98SYtT4 rgTQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=mN6oaNqh; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id y19-20020a056a00191300b00528cc4fc308si14385085pfi.268.2022.07.17.07.44.45; Sun, 17 Jul 2022 07:45:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=mN6oaNqh; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229701AbiGQOlC (ORCPT + 99 others); Sun, 17 Jul 2022 10:41:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54216 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229536AbiGQOlB (ORCPT ); Sun, 17 Jul 2022 10:41:01 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 80A28FE2; Sun, 17 Jul 2022 07:41:00 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4C3B6611C1; Sun, 17 Jul 2022 14:40:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 596DDC3411E; Sun, 17 Jul 2022 14:40:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1658068858; bh=dqhyP+8gKpip9W8T3rXRIi1I/ss8fh95OtlNLlnaZOk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=mN6oaNqhJWZfiZHBqD5gPoE3RISEwnyksTaYtzQvKEGC9o1D4c0fTEGQSP/CbJTt9 7CvXq2Y39OdCVUrsFN5bhbwJHFj74kQbeyv7aLv2z6/elFyezFX+xGyxrr2OeQx6nD prM0jzrtrcYPM68TjQ3W5EfPd2aCRsPAA0JweMuMS1zUwaw7VD0CMAzUDO3ctpfG8X ZZSFh9WBIEcnT267y+VocMWIl4tXRMEE1PX3ulIgG5igqqo8xyPuc2okxWTEDyG7xP NtQ177S5/xF9YEVxTmt4OJIVVrFvAdnEXnnKk930+ROLeilLustkCR/AHa2uyitk8b zqWw0rgITsQVA== Date: Sun, 17 Jul 2022 08:40:56 -0600 From: Keith Busch To: Wei Chen Cc: axboe@kernel.dk, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org Subject: Re: WARNING in loop_add Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-7.7 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jul 17, 2022 at 10:06:16PM +0800, Wei Chen wrote: > Recently when using our tool to fuzz kernel, the following crash was triggered: > > HEAD commit: 64570fbc14f8 Linux 5.15-rc5 That's an unusual commit to be testing today. Why are you using such an old release candidate?