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=-2.5 required=3.0 tests=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 EA63FC433DF for ; Wed, 1 Jul 2020 20:59:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D37FA2085B for ; Wed, 1 Jul 2020 20:59:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725847AbgGAU73 (ORCPT ); Wed, 1 Jul 2020 16:59:29 -0400 Received: from stargate.chelsio.com ([12.32.117.8]:34834 "EHLO stargate.chelsio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725535AbgGAU73 (ORCPT ); Wed, 1 Jul 2020 16:59:29 -0400 Received: from localhost (pvp1.blr.asicdesigners.com [10.193.80.26]) by stargate.chelsio.com (8.13.8/8.13.8) with ESMTP id 061Kx4l4018508; Wed, 1 Jul 2020 13:59:05 -0700 Date: Thu, 2 Jul 2020 02:29:04 +0530 From: Krishnamraju Eraparaju To: bvanassche@acm.org Cc: sagi@grimberg.me, maxg@mellanox.com, linux-rdma@vger.kernel.org, Potnuri Bharat Teja , Nirranjan Kirubaharan , krishna2@chelsio.com Subject: Re: iSERT completions hung due to unavailable iscsit tag Message-ID: <20200701205903.GA31964@chelsio.com> References: <20200601134637.GA17657@chelsio.com> <20200604151341.GA20246@chelsio.com> <20200616094904.GA21817@chelsio.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200616094904.GA21817@chelsio.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Hi Bart, Looks like this issue belongs iscsit as the hung is at schedule() in iscsit_wait_for_tag(), as I mentioned in my initial post. This issue is observed with both iWARP and ROCE adapter drivers. Note that this issue will occur only if the disk(I used RAMDISK) size is 511MB or below. Even 512MB will not recreate. Thanks, Krishna.