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 4570DC433B4 for ; Tue, 11 May 2021 16:49:46 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E132C61260 for ; Tue, 11 May 2021 16:49:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E132C61260 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.125839.236887 (Exim 4.92) (envelope-from ) id 1lgVZj-0004Cp-9E; Tue, 11 May 2021 16:49:39 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 125839.236887; Tue, 11 May 2021 16:49:39 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lgVZj-0004Ci-4z; Tue, 11 May 2021 16:49:39 +0000 Received: by outflank-mailman (input) for mailman id 125839; Tue, 11 May 2021 16:49:38 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lgVZi-0004CO-Le for xen-devel@lists.xenproject.org; Tue, 11 May 2021 16:49:38 +0000 Received: from verein.lst.de (unknown [213.95.11.211]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 2adc501c-ef24-4767-b570-4847a31b8f91; Tue, 11 May 2021 16:49:36 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id E267367373; Tue, 11 May 2021 18:49:33 +0200 (CEST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 2adc501c-ef24-4767-b570-4847a31b8f91 Date: Tue, 11 May 2021 18:49:33 +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: <20210511164933.GA19775@lst.de> References: <4ea1e89f-a7a0-7664-470c-b3cf773a1031@xen.org> <20210510084057.GA933@lst.de> <20210511063558.GA7605@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) 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?