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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id ECDA2C433EF for ; Wed, 15 Jun 2022 11:31:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=+R+gwYnExpqPohDJn+o7Gel9vHv+3UbhOqXvNiZjaVQ=; b=jyBdlPdVTsEMskWMUvP8ZZcsgL pE6aT+B9cj+kz3mZgabt7TWINlQdBYKSgtWy0In+iYkNNm3rXHe/Ci82SQGeXISTMEYCqwuuIh4ig SPvpzLFBqEXzSNWL/iMOdRaaO3/BdyJCRVB8F+aZpS8QKC6jP4lRO4EgEfJdAlf8V87rl523noh/O Vy5nnFI4hm4Pi+GfomJmvAc2RII4Q2pv5uuJ4+1aC/tu36CynC2emQ8lU59KHAmcLTxGHOc91COfE AjlrPi91UmOxssmEYlzH3ty/HvX/+HhapFZspTOA+v0D5+T4LeAvpF2mGIBekezuN9yNGfEYAwoEO T9VbRSFw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o1REu-00EBej-N5; Wed, 15 Jun 2022 11:31:12 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o1REs-00EBdF-CY for linux-nvme@lists.infradead.org; Wed, 15 Jun 2022 11:31:11 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 43DD768AA6; Wed, 15 Jun 2022 13:31:06 +0200 (CEST) Date: Wed, 15 Jun 2022 13:31:06 +0200 From: Christoph Hellwig To: Pankaj Raghav Cc: Christoph Hellwig , "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" 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: <20220615113106.GA10697@lst.de> References: <20220610061449.GD24331@lst.de> <20220613135549.GA1714@lst.de> <20220615102757.ugvs6vdxf66nrmyn@quentin> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220615102757.ugvs6vdxf66nrmyn@quentin> User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220615_043110_616857_62F9C9BA X-CRM114-Status: GOOD ( 18.98 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Wed, Jun 15, 2022 at 12:27:57PM +0200, Pankaj Raghav wrote: > Hi Christoph, > On Mon, Jun 13, 2022 at 03:55:49PM +0200, Christoph Hellwig wrote: > > It all appears as PCIe, but the pci_dev has an is_thunderbolt flag. > > > > Thanks to both of you for the information. I'd like to wait until the > > end of the week or so if we can hear something from Samsung, and if we > > don't we'll have to quirk based on the model number. > Our FW team has started looking into the issue. They said they will try > to come up with a solution before 5.20. If not, we can add this quirk > based on the FW ver. and a proper solution can be added by 5.21. I don't think we can wait for 5.20 - the "offending" commit is in 5.19-rc and -stable. So I'll plan to prepare a patch based on the model number for now, still hoping we can come up with something better eventually.