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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 27F91C2D0A3 for ; Wed, 4 Nov 2020 00:40:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EA971223EA for ; Wed, 4 Nov 2020 00:40:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728632AbgKDAku (ORCPT ); Tue, 3 Nov 2020 19:40:50 -0500 Received: from mga01.intel.com ([192.55.52.88]:50120 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725811AbgKDAku (ORCPT ); Tue, 3 Nov 2020 19:40:50 -0500 IronPort-SDR: HZRQyym2hDqWuf6Br/vnSjn3Psill6Msuq5OXbwsGyWkJJ0nz+rrdacJZGMzz4gWlR7S+R4BfB JEtrXtPBilhw== X-IronPort-AV: E=McAfee;i="6000,8403,9794"; a="187003076" X-IronPort-AV: E=Sophos;i="5.77,449,1596524400"; d="scan'208";a="187003076" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2020 16:40:49 -0800 IronPort-SDR: Btell1bh6sf4GhO56aaZucqN5ZxK1OP6K0D3qvvLZNMjLIiPyna8lm4RFU0hjj3xXYODgzAnmN +xHz/8adXQ/Q== X-IronPort-AV: E=Sophos;i="5.77,449,1596524400"; d="scan'208";a="538694882" Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2020 16:40:49 -0800 Date: Tue, 3 Nov 2020 16:40:48 -0800 From: Ira Weiny To: Changming Liu Cc: "jgg@ziepe.ca" , "linux-rdma@vger.kernel.org" , yaohway Subject: Re: How to fuzz testing infiniband/uverb driver Message-ID: <20201104004048.GA1538856@iweiny-DESK2.sc.intel.com> References: <20201102161617.GE971338@iweiny-DESK2.sc.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.11.1 (2018-12-01) Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On Mon, Nov 02, 2020 at 10:26:22PM +0000, Changming Liu wrote: > > > > -----Original Message----- > > From: Ira Weiny > > Sent: Monday, November 2, 2020 11:16 AM > > To: Changming Liu > > Cc: jgg@ziepe.ca; linux-rdma@vger.kernel.org; yaohway > > > > Subject: Re: How to fuzz testing infiniband/uverb driver > > > > On Sun, Nov 01, 2020 at 09:00:13PM +0000, Changming Liu wrote: > > > > > > there is no 'uverbs0' file created under /sys/class/infiniband or > > > /dev/infiniband/. So may I ask how to properly set up my testing > > > environment so that I can fuzzi testing this driver? Is a physical > > > device required? > > > > A physical device is not required. Look at one of the software drivers like rxe. > > > > Thank you so much for your guidance, > now uverb0 has appeared and syzkaller works! Awesome! More testing is never a bad thing! :-D Ira