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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3540C433F5 for ; Tue, 17 May 2022 15:22:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233914AbiEQPV6 (ORCPT ); Tue, 17 May 2022 11:21:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57744 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234922AbiEQPV5 (ORCPT ); Tue, 17 May 2022 11:21:57 -0400 Received: from mail-oi1-x22c.google.com (mail-oi1-x22c.google.com [IPv6:2607:f8b0:4864:20::22c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1720912AB2 for ; Tue, 17 May 2022 08:21:55 -0700 (PDT) Received: by mail-oi1-x22c.google.com with SMTP id i66so22619991oia.11 for ; Tue, 17 May 2022 08:21:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language:to :cc:references:from:in-reply-to:content-transfer-encoding; bh=xeyQAaAEWFA52W3CWgN0CSmYYnfgfl1GmFQlDCCaVwM=; b=oX5y9nS8jgeBOnTx81dSSDk+rGRKuk1nwPYjy6ESs5DBs1gC9L1x65dAFMgtTFsGxD x9F5ZNcrJs0Yl4Bcr2WIx5Z+Ljg041mfPz1n1ovuUdB8KCc97jbgDmUzUV8leM+rH3oS w+3bZt/p8cjcrzaNaJUVbhuqMIfNlQlnRVGy+IPaPZjlvqJCiXQixn99Q1smAJMBsjM3 E7cF+dbPZy223d4ZCKH1x8/v0Zz9Tk5Pu50Sjz9YLabu2VKWv1QvJ1F8ur/RefehUV0E oNJN92SBB6bJLioFYA1tknYxxW+hDqJwHJvJbpTrfyW1AO0YvrXQHSA9WWnIIESZAqq0 9CZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=xeyQAaAEWFA52W3CWgN0CSmYYnfgfl1GmFQlDCCaVwM=; b=UEIdaGVo0RTEoelrC+nE2xmISreaW4lsbq7uRicraLxwE9nn/92nLlntcUztD7TVvv nKHqLmr+eMEgzILcGQXB6MucgIl2BtwKV7wU7FAVORpmZZSk1FPmMq+MknhmHCnUKD5U DOGIJSsoCpiTiJ9rnmOS58izc3ERUoST1hhBNwMaWJ81NeMhZQlTGixjOeuITEeuF/Gm hSrZGOiBnz6kxUgtg+ngFord7wz6oUnww2sm3mjG772YpMeGJvjecpkwmFZLVZoLMHAU l25TcNH+t0KwDG3dXZ6Xt741u9XL391abk4sxS/XyWTdVqUiBl9q2snEDjbq1ITqI3qF 3hSQ== X-Gm-Message-State: AOAM532X1vWH0mDjKv3nVA+U6TsKe8L+M0DxrB+xz6BdcA6+gWkxd+yc aakwVa+DTZwSEwultLvAp/li+4SjBTg= X-Google-Smtp-Source: ABdhPJz04OoXH6DUFUYUoJhBJtoYwE6RVDGV3KBG6mJ7LsrBVRU02iLB0/BTJDXCfGX5Akjk2ZlvNw== X-Received: by 2002:a05:6808:f90:b0:326:e17a:2a68 with SMTP id o16-20020a0568080f9000b00326e17a2a68mr15837208oiw.59.1652800914420; Tue, 17 May 2022 08:21:54 -0700 (PDT) Received: from ?IPV6:2603:8081:140c:1a00:d310:a4f5:635f:2e00? (2603-8081-140c-1a00-d310-a4f5-635f-2e00.res6.spectrum.com. [2603:8081:140c:1a00:d310:a4f5:635f:2e00]) by smtp.gmail.com with ESMTPSA id a14-20020a05680804ce00b00325cda1ffbasm4853037oie.57.2022.05.17.08.21.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 May 2022 08:21:54 -0700 (PDT) Message-ID: Date: Tue, 17 May 2022 10:21:52 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: Apparent regression in blktests since 5.18-rc1+ Content-Language: en-US To: Bart Van Assche , Jason Gunthorpe , Bernard Metzler , Zhu Yanjun , "linux-rdma@vger.kernel.org" Cc: Yi Zhang , Douglas Gilbert References: <4b0153c7-a8e9-98de-26ae-d421434a116d@linux.dev> <20220507012952.GH49344@nvidia.com> <81571bbb-c5d2-9b68-765d-f004eb7ba6fd@linux.dev> <43c2fed8-699f-19fe-81fa-c5f5b4af646f@gmail.com> <4c3439c3-6279-804f-63b2-99d8529e5d3d@acm.org> <529dbb0a-0b75-9752-62a3-a1235565aa1a@acm.org> <66379f8e-c7ab-1daf-b2a8-19d0368e229f@gmail.com> <7b8f7d5c-cda5-a160-b988-186b371a6e4d@acm.org> From: Bob Pearson In-Reply-To: <7b8f7d5c-cda5-a160-b988-186b371a6e4d@acm.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On 5/12/22 22:40, Bart Van Assche wrote: > On 5/12/22 17:41, Bob Pearson wrote: >> OK thanks. I don't exactly know how to merge "the latest master branch". I did merge the tag v5.18-rc2 and am now trying >> v5.18-rc4. As far as I can tell rc6 is the latest branch. When I tried to merge the git repo it didn't work. > > Hmm ... what didn't work? Merging or running blktests? > > Anyway, this is how I merge Linus' latest branch: > > $ git remote add origin \ >     git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > $ git fetch origin > $ git merge origin/master > > I also found which commit I merged from the master branch (see also my email from May 7): > $ git merge 4b97bac0756a > > Thanks, > > Bart. Thanks Bart. I was able to follow your steps above. But unfortunately not much has changed. I still see hangs in siw (with no code changes by me) and also in rxe (but here I have fixed some lockdep warnings so it will run in a debug kernel.) There are two test cases that cause the most problems. srp/002 and srp/011. 011 always fails solidly. 002 sometimes hangs and sometimes completes but with failed status. The rest of the tests all pass. Both tests hang at a line that looks like scsi host6: ib_srp: Already connected to target port with id_ext=... When 002 completes but fails there are 14 second gaps at some of the same lines in the trace. This has the feel of the earlier problem with the 3 minute timeout that was fixed by the patch (revert ... scsi_debug.c) that you sent and is applied here. I really don't know how to make progress here. If anyone knows what is happening at the already connected lines let me know. They seem normal except for the long gaps and hangs when they occur. Thanks, Bob