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 64408C54E64 for ; Mon, 25 Mar 2024 20:29:17 +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:Mime-Version:References:In-Reply-To: Message-Id:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Ca00uwD7eCA/847KCHrvQum+ycmmAxRwYPFF09PeVb0=; b=JIJUf2Pa2ngKGe Ujn4jmSR25InvN9YNDkRj9YL529becpjduhJbRN8rr8hT6TbmwSScDYKEqyFtKJU77mprvPu7JLge KYPT2+VCs5bE0z9qTm2mfDRcsSFJG+DBTI7vUF+jGlCDV9RQxqxFooijOmWNGbYKWPNnjHgkE6Rh/ HsXEkYWRkLQroFCOS9VB0b0mWGSTku8C9F9tHdP9rk2dud+ZqzfunLUawPKxRU71a0oKxDrZqtnwm yjCIEEdN4dhe3Wgho4n+8UXHvhttIhrUWe05pAZdUAn3NLUDu3ZV0FrFjSu1mKkS8W7FMiUD43OkD 3JCuGsMtO80hnONHPZIQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1roqwV-00000001nxS-3FI1; Mon, 25 Mar 2024 20:29:15 +0000 Received: from sin.source.kernel.org ([145.40.73.55]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1roqwT-00000001nvy-1qgt for kexec@lists.infradead.org; Mon, 25 Mar 2024 20:29:14 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 6B9EDCE1D42; Mon, 25 Mar 2024 20:29:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5DD3AC433C7; Mon, 25 Mar 2024 20:29:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1711398550; bh=nfVLFY97TTH4TNsZH8G5ndSxRhKAMtXtADlNh6V0jyk=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=lLqvdpovYZYCLrBxcniicIdrfgG84STczHwD082AmwsVdLSbADv7f8H+LXhIBvDgn jFPLERwXKBBCnDazptInYJ5w1EdJJyIqLziwHyHzqpdNzPQkPg/xibLzKrLh5VcNub DEDjxkQPrWn24SyhoPel+o+zO2Rr/LLZoK2Ccv4E= Date: Mon, 25 Mar 2024 13:29:09 -0700 From: Andrew Morton To: Baoquan He Cc: kexec@lists.infradead.org, mingo@kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org, chenhuacai@loongson.cn, dyoung@redhat.com, jbohac@suse.cz, lihuafei1@huawei.com, chenhaixiang3@huawei.com Subject: Re: [PATCH v2] crash: use macro to add crashk_res into iomem early for specific arch Message-Id: <20240325132909.741ae47a8a05837c175a981e@linux-foundation.org> In-Reply-To: References: <20240324033513.1027427-1-bhe@redhat.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240325_132913_717593_0961B041 X-CRM114-Status: GOOD ( 13.75 ) X-BeenThere: kexec@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: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org On Mon, 25 Mar 2024 09:50:50 +0800 Baoquan He wrote: > There are regression reports[1][2] that crashkernel region on x86_64 can't > be added into iomem tree sometime. This causes the later failure of kdump > loading. So I think a cc:stable is needed. > This happened after commit 4a693ce65b18 ("kdump: defer the insertion of > crashkernel resources") was merged. > > Even though, these reported issues are proved to be related to other > component, they are just exposed after above commmit applied, I still > would like to keep crashk_res and crashk_low_res being added into iomem > early as before because the early adding has been always there on x86_64 > and working very well. For safety of kdump, Let's change it back. I'll use 4a693ce65b18 as the Fixes: target, since there is no "Exposed-by-non-buggy-patch:" tag. To tell the -stable tree maintainers how far back in history this should be backported. _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec