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[23.128.96.19]) by mx.google.com with ESMTPS id b2-20020a63d802000000b003c631686abbsi20978547pgh.536.2022.06.05.22.02.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Jun 2022 22:02:01 -0700 (PDT) Received-SPF: softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) client-ip=23.128.96.19; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20210309 header.b=KU5D3PVZ; spf=softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 49C7A137C57; Sun, 5 Jun 2022 21:16:06 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237811AbiFCGnt (ORCPT + 99 others); Fri, 3 Jun 2022 02:43:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60160 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235799AbiFCGnk (ORCPT ); Fri, 3 Jun 2022 02:43:40 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6241C3587C; Thu, 2 Jun 2022 23:43:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=X/QtHjJ170o4pOm9TzUZyB3LkXoLeuIRpebpsXIaYcU=; b=KU5D3PVZ/jP7VGIocFtMF5UW2Z yn4OPFR2anuWDtkbBFDW5Z2v7rQzoJIsXAVLlAu1uh6VsxOGIWnmuCBwNHipQZJ8ABSYcOvsu5tm0 gK7x+JRumy7NsQFUuVkFQqqBJ88mXtaTlptMlNH3I2yel/GzBzwVYd5ftUxz/avnsuWVSJ0nGPdj0 PDCZR3m5wVBXwRLHdlbW9kmCOQ0Kt2KJS9sG8iQeb4wuTgdGvggnXCwEnQ+rXmlTTR7xPTJOFqi0v fkVB37bcTfXMctffFzDL7AYcbIBgAd/tWMpxsNt/se8yJy6ZanHehmvBAAtCbvhijcOLkssgPZmgK /fVYdIYg==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1nx122-0064Yx-Dr; Fri, 03 Jun 2022 06:43:38 +0000 Date: Thu, 2 Jun 2022 23:43:38 -0700 From: Christoph Hellwig To: Logan Gunthorpe Cc: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, Song Liu , Christoph Hellwig , Donald Buczek , Guoqing Jiang , Xiao Ni , Stephen Bates , Martin Oliveira , David Sloan Subject: Re: [PATCH v3 06/11] md/raid5-cache: Clear conf->log after finishing work Message-ID: References: <20220602181818.50729-1-logang@deltatee.com> <20220602181818.50729-7-logang@deltatee.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220602181818.50729-7-logang@deltatee.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no 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 Thu, Jun 02, 2022 at 12:18:12PM -0600, Logan Gunthorpe wrote: > A NULL pointer dereferlence on conf->log is seen randomly with > the mdadm test 21raid5cache. Kasan reporst: Looks good: Reviewed-by: Christoph Hellwig