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=-5.3 required=3.0 tests=BAYES_00, 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 DDCE0C433E0 for ; Sun, 21 Feb 2021 03:34:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A6BEB64F00 for ; Sun, 21 Feb 2021 03:34:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232938AbhBUDdi (ORCPT ); Sat, 20 Feb 2021 22:33:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36144 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232904AbhBUDdT (ORCPT ); Sat, 20 Feb 2021 22:33:19 -0500 Received: from angie.orcam.me.uk (angie.orcam.me.uk [IPv6:2001:4190:8020::4]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 88299C061574; Sat, 20 Feb 2021 19:32:39 -0800 (PST) Received: by angie.orcam.me.uk (Postfix, from userid 500) id 87AEC92009C; Sun, 21 Feb 2021 04:32:38 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by angie.orcam.me.uk (Postfix) with ESMTP id 7D0A092009B; Sun, 21 Feb 2021 04:32:38 +0100 (CET) Date: Sun, 21 Feb 2021 04:32:38 +0100 (CET) From: "Maciej W. Rozycki" To: Christoph Hellwig cc: Thomas Bogendoerfer , Greg Kroah-Hartman , linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org Subject: Re: [PATCH 5/6] driver core: lift dma_default_coherent into common code In-Reply-To: Message-ID: References: <20210208145024.3320420-1-hch@lst.de> <20210208145024.3320420-6-hch@lst.de> <20210208161043.GA14083@lst.de> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 15 Feb 2021, Maciej W. Rozycki wrote: > I hope to have the adapter properly fixed soon and I'll look at the Malta > side now, possibly using the old server whose DEFPA has worked flawlessly > for some 20 years now. I have planned to use the interface to supply NFS > root, which I think should be enough of a stress test. Card reworked now and network wired, so using the new server actually. I haven't booted Linux on my Malta for a while now, but it turns out to work just fine, and your patch set does not regress it booting multi-user NFS-rooted over FDDI. I note however that the system does not reboot properly: sd 0:0:0:0: [sda] Synchronizing SCSI cache reboot: Restarting system Reboot failed -- System halted which is a regression, and also the MMIO-mapped discrete CBUS UART (ttyS2) does not sign in anymore either: Serial: 8250/16550 driver, 5 ports, IRQ sharing enabled printk: console [ttyS0] disabled serial8250.0: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A printk: console [ttyS0] enabled printk: console [ttyS0] enabled printk: bootconsole [uart8250] disabled printk: bootconsole [uart8250] disabled serial8250.0: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A while long ago: Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled ttyS28 at 0x03f8 (irq = 4) is a 16550A ttyS29 at 0x02f8 (irq = 3) is a 16550A ttyS30 at 0x0000 (irq = 20) is a 16550 (I don't know why the line numbers reported were so odd back then, but the standard character device major:minor numbers for ttyS0-2 just worked), so there's probably something wrong with platform device registration. ISTR using the CBUS UART as a console device at one point too. Maciej