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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 9455DC433ED for ; Tue, 11 May 2021 17:01:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5FA46610C9 for ; Tue, 11 May 2021 17:01:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231764AbhEKRCW (ORCPT ); Tue, 11 May 2021 13:02:22 -0400 Received: from verein.lst.de ([213.95.11.211]:37566 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231437AbhEKRCK (ORCPT ); Tue, 11 May 2021 13:02:10 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id 14EDB67373; Tue, 11 May 2021 19:01:02 +0200 (CEST) Date: Tue, 11 May 2021 19:01:01 +0200 From: Christoph Hellwig To: Stefano Stabellini Cc: Christoph Hellwig , Julien Grall , f.fainelli@gmail.com, "xen-devel@lists.xenproject.org" , linux-kernel@vger.kernel.org, osstest service owner , Konrad Rzeszutek Wilk , Boris Ostrovsky , iommu@lists.linux-foundation.org Subject: Re: Regression when booting 5.15 as dom0 on arm64 (WAS: Re: [linux-linus test] 161829: regressions - FAIL)] Message-ID: <20210511170101.GA20936@lst.de> References: <4ea1e89f-a7a0-7664-470c-b3cf773a1031@xen.org> <20210510084057.GA933@lst.de> <20210511063558.GA7605@lst.de> <20210511164933.GA19775@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 11, 2021 at 09:51:20AM -0700, Stefano Stabellini wrote: > On Tue, 11 May 2021, Christoph Hellwig wrote: > > On Tue, May 11, 2021 at 09:47:33AM -0700, Stefano Stabellini wrote: > > > That's a much better plan. It is also not super urgent, so maybe for now > > > we could add an explicit check for io_tlb_default_mem != NULL at the > > > beginning of xen_swiotlb_init? So that at least we can fail explicitly > > > or ignore it explicitly rather than by accident. > > > > Fine with me. Do you want to take over from here and test and submit > > your version? > > I can do that. Can I add your signed-off-by for your original fix? Sure: Signed-off-by: Christoph Hellwig