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 15760C433F5 for ; Fri, 8 Apr 2022 09:49:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:CC:To:Subject:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=e5Z5P4OP+ITMLjBgVwKWSVCYa3zqBTEhpJRpAKah4ww=; b=GL/M9UqEUqGGoTMYaF82/X3FT9 J0oO6frYq4Day7x7/qpqZ10PMZrvPNdLPUEb1ogKroTYSJ0brbNPH9fU/TdtxMZONvtwW7H8ptxz4 VxTMeDVgZaI+SrWrIp/29mdLo5kgFs0lx6NjQ9PkfNhJztRWqCosugzUMSV3BOBB74u3CNUnB8EnT KE+bxQ5mjbUe+W97PdcAZZv4yP5nD6BenjgnarwH0YwwR+QvGgJR8svwdcVOXP3uBojX7vjqyV0ST AVsV2JvYS61taehLeEya5ENEdsoBuqtbRa3LE7kCWLs2bfoPpeLuG1SHjwGtaINiFTgU+qCr2lrUE oL0CkgbQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nclE9-00GBjq-U6; Fri, 08 Apr 2022 09:48:26 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nclE5-00GBfU-Cm; Fri, 08 Apr 2022 09:48:22 +0000 Received: from dggpemm500020.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4KZYKq1bV9zgYWs; Fri, 8 Apr 2022 17:46:23 +0800 (CST) Received: from dggpemm500006.china.huawei.com (7.185.36.236) by dggpemm500020.china.huawei.com (7.185.36.49) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Fri, 8 Apr 2022 17:48:08 +0800 Received: from [10.174.178.55] (10.174.178.55) by dggpemm500006.china.huawei.com (7.185.36.236) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Fri, 8 Apr 2022 17:48:07 +0800 Subject: Re: [PATCH v21 0/5] support reserving crashkernel above 4G on arm64 kdump To: Baoquan He CC: Thomas Gleixner , Ingo Molnar , Borislav Petkov , , "H . Peter Anvin" , , Dave Young , Vivek Goyal , Eric Biederman , , Catalin Marinas , Will Deacon , , Rob Herring , Frank Rowand , , "Jonathan Corbet" , , Randy Dunlap , Feng Zhou , Kefeng Wang , Chen Zhou , "John Donnelly" , Dave Kleikamp References: <20220227030717.1464-1-thunder.leizhen@huawei.com> From: "Leizhen (ThunderTown)" Message-ID: <3a0bb9a9-c2a1-2e3a-8f23-16109ae1e525@huawei.com> Date: Fri, 8 Apr 2022 17:47:55 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Originating-IP: [10.174.178.55] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpemm500006.china.huawei.com (7.185.36.236) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220408_024821_627596_3D6445B6 X-CRM114-Status: GOOD ( 13.78 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 2022/4/8 17:32, Baoquan He wrote: > Hi, Lei > > On 02/27/22 at 11:07am, Zhen Lei wrote: >> Changes since [v20]: >> 1. Check whether crashkernel=Y,low is incorrectly configured or not configured. Do different processing. >> 2. Share the existing description of x86. The configuration of arm64 is the same as that of x86. >> 3. Define the value of macro CRASH_ADDR_HIGH_MAX as memblock.current_limit, instead of MEMBLOCK_ALLOC_ACCESSIBLE. >> 4. To improve readability, some lightweight code adjustments have been made to reserve_craskernel(), including comments. >> 5. The defined value of DEFAULT_CRASH_KERNEL_LOW_SIZE reconsiders swiotlb, just like x86, to share documents. > > 5.18 rc1 is already done, do you have plan to post a new version for > reviewing? Yes, v5.18-rc1 has added a new patch commit 031495635b46 ("arm64: Do not defer reserve_crashkernel() for platforms with no DMA memory zones") to allow block mapping again, so my patches need to be modified. It should be post next week. > > Thanks > Baoquan > > . > -- Regards, Zhen Lei _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel