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 88A1AC43334 for ; Fri, 10 Jun 2022 12:06:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347660AbiFJMGD (ORCPT ); Fri, 10 Jun 2022 08:06:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35938 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347121AbiFJMGA (ORCPT ); Fri, 10 Jun 2022 08:06:00 -0400 Received: from mail-lf1-x133.google.com (mail-lf1-x133.google.com [IPv6:2a00:1450:4864:20::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A27483F32C for ; Fri, 10 Jun 2022 05:05:57 -0700 (PDT) Received: by mail-lf1-x133.google.com with SMTP id c4so10457642lfj.12 for ; Fri, 10 Jun 2022 05:05:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=130B3kkD/RZIkOCrcmz351BczRa1xYiEzwjuOf+BIgM=; b=E7/lo+IHcf40eLTK2hdrDgSXpWYiZZx33aHPtjRfBkJ5+KwfnypczseU/evZGlMKHS wdTE0F34tV97mzUPq5NeVhXM8MGKNDBzKJRqNxzmLH5Fkefsa11QkIiGc5mF9mPxTCOx C+ak6qQvMLINN6c9cGRExCq3uqQv/bk7BG7ngLnSjX07nA8OvXGW0m3CSXJ8zZP8TsSo K4Cd7JXgGA4jLI008NOD7MlPfKROGzPol5DFWMQSdInu6sh3kh7V2Mr1SqJB4KvCZPHo eTmor6XZKpk+inF5sIf5xfDX5iOeAUVxRn58Y2TR0+bXwQLBc3itmURO3u+UJk7JFdWg NlMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=130B3kkD/RZIkOCrcmz351BczRa1xYiEzwjuOf+BIgM=; b=BjK/FGisGNw8jPSvvc3aay9sLHh6cozSXIxYQj1Ch3PLDd6DVwa5pT8pCljS6nkuUd w0td2nX5KVSugUJi8dLYCr1aOIg13jgRw81Is4TBL7QFzE1bI/CxNB2RoOg77qdJLxxa OEcptzkOfm+fnyCsK++Ga2vFxM9sutF9uLI+q5MR915FfRcRUVbcTs0ALPuovL7YBcsu NpEv6kgAnUWa46i6D5VCgQU26mqJogTpcbhR7NTO9wPT5J4TjLTbg0JDpCvIPZKpqYUa Bdg0ZN57C3uZc4Z+MAvGxhobLPdqRxXYjAtqWR540KHwKfEZJKIn/W/PDp0s59odB3vW M5Kw== X-Gm-Message-State: AOAM533NCPD4C0npOPPYXtayDHN8bAkbY60xGpZytTb2gnNhf5KTPvue kuwPyA254gmiNe6Elgxo4lY= X-Google-Smtp-Source: ABdhPJyewHpKPtRT9Pz2gZdCnPyd60KQ0mno5fKFPbEcrCwStmYLat3hyEHndZKfU4T/we0GvsOTMQ== X-Received: by 2002:a05:6512:3183:b0:479:3e62:2cb with SMTP id i3-20020a056512318300b004793e6202cbmr16934264lfe.459.1654862756109; Fri, 10 Jun 2022 05:05:56 -0700 (PDT) Received: from localhost (87-49-45-7-mobile.dk.customer.tdc.net. [87.49.45.7]) by smtp.gmail.com with ESMTPSA id o18-20020ac25e32000000b00478fc1eca9bsm4690143lfg.131.2022.06.10.05.05.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Jun 2022 05:05:55 -0700 (PDT) Date: Fri, 10 Jun 2022 14:05:54 +0200 From: Pankaj Raghav To: Christoph Hellwig Cc: "Jason A. Donenfeld" , "R, Monish Kumar" , "open list:NVM EXPRESS DRIVER" , Sagi Grimberg , "alan.adamson@oracle.com" , LKML , Yi Zhang , Keith Busch , "axboe@fb.com" , "Rao, Abhijeet" , Pankaj Raghav , Javier =?utf-8?B?R29uesOhbGV6?= Subject: Re: 2 second nvme initialization delay regression in 5.18 [Was: Re: [bug report]nvme0: Admin Cmd(0x6), I/O Error (sct 0x0 / sc 0x2) MORE DNR observed during blktests] Message-ID: <20220610120554.ry7w37jbf3g6w3p3@quentin> References: <20220610061449.GD24331@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220610061449.GD24331@lst.de> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jun 10, 2022 at 08:14:49AM +0200, Christoph Hellwig wrote: > The 970 seems to actually be very slightly newer than the X5. What > I suspect is that they actually are the same m.2 SSD or at least a > very similar one and Samsung decided to ship it in the thunderbolt > attached versions first. Maybe one of the Samsung folks here can > confirm. > > That leaves us with two plausible theories: > > - the problems could be due to an earlier firmware version or > ASIC stepping > - the problems are due to the thunderbolt attachment > I have forwarded this report internally within Samsung and I will post an update once I have more information about this issue. Cheers, Pankaj