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 14937C61D94 for ; Tue, 21 Nov 2023 12:50:30 +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:References: 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=zYDy6LXCKsdJQx0s+sovKVHmAosVKtXBviJLEv1+ayE=; b=ctLtU/662yA010 UL/dGcSFJUiuDa9y78l8Ovl9TruhCauAreVpSa/IyJn6bl6qXwIqkbmrpQSNWA5zmHk0TpQx7YfQs m5tcwhaIjhpkmdZ6ZiB44QtA5s9Il1jIis5B7gsiqK86BViPL2uumPOjhTxpUzb8tkX18IB3gamFj 0XUBBSabe48+7qYpVe++Q5fK5dHaIGt9k4/QUm4Nzvyz8N0RgvDiITVrYjlMfVukKa18eMyVOwexu twu5M4bWPOs9P9ffzP1rIJw94P+lDjt7vgea/Cige8ckmCLnsiDUvPCSl8S402J7olLr1RzqQXboB eYb6C1N0Ac858nBo7Krg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r5QCw-00GjpL-0l; Tue, 21 Nov 2023 12:50:26 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1r5QCs-00GjnH-0D for kexec@lists.infradead.org; Tue, 21 Nov 2023 12:50:23 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1700571011; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ROag+VmLCtyBTs9acg1WAJvLy3sMpjYtnMNYFyigFHQ=; b=a6wbvU7h596p0hzvPe+7cONVsSnH0ozOmUxKwQndkvuhXnTibilpx5YBIrglQU53bgMVYb DKAKZ8SEr15G119mVAHTbHb+NyLyqhrD4Sru1C2f+XGfJ0U/hR3FZfk1ZbcIWuYnD76fkM 5YfpFyruqOEaM053/+DT5n7rOFj9pW4= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-339-5cWuSWm2Ox2TstUXPkD42g-1; Tue, 21 Nov 2023 07:50:08 -0500 X-MC-Unique: 5cWuSWm2Ox2TstUXPkD42g-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6DA19852AC8; Tue, 21 Nov 2023 12:50:07 +0000 (UTC) Received: from localhost (unknown [10.72.112.97]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 70282492BE0; Tue, 21 Nov 2023 12:50:06 +0000 (UTC) Date: Tue, 21 Nov 2023 20:50:03 +0800 From: Baoquan He To: "Kirill A. Shutemov" Cc: Thomas Gleixner , Ingo Molnar , ltao@redhat.com, Borislav Petkov , Dave Hansen , x86@kernel.org, "Rafael J. Wysocki" , Peter Zijlstra , Adrian Hunter , Kuppuswamy Sathyanarayanan , Elena Reshetova , Jun Nakajima , Rick Edgecombe , Tom Lendacky , "Kalra, Ashish" , Sean Christopherson , "Huang, Kai" , kexec@lists.infradead.org, linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCHv3 00/14] x86/tdx: Add kexec support Message-ID: References: <20231116125612.daxettqcapled7ac@box.shutemov.name> <20231117124748.umfuc3no2qvh4shj@box.shutemov.name> <20231117154632.zvi6g6lblmtvikzt@box> <20231121084321.t44ntae5ohslgrme@box.shutemov.name> <20231121104011.jfe6fzmxgl7onlfi@box.shutemov.name> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20231121104011.jfe6fzmxgl7onlfi@box.shutemov.name> X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.9 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231121_045022_295329_4078729D X-CRM114-Status: GOOD ( 16.37 ) 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 11/21/23 at 01:40pm, Kirill A. Shutemov wrote: > On Tue, Nov 21, 2023 at 06:15:13PM +0800, Baoquan He wrote: > > > > 2) anything missing to allow makedumpfile/cp access 1st kernel's memory? > > > > > > It worked before for us, but I have not checked for a while. > > > > > > I expected you've dropped my "if (crash) return;" debug patch I asked you > > > to tested before, right? If not, failure is expected. > > > > Ah, my bad. I didn't actually. > > > > Just now I rebuilt kernel and retested, vmcore saving works. Just when > > it finished kdump work and tried to reboot, the rebooting failed because > > cpus are not resettable like kexec reboot does. Not sure if this is seen > > in your test. > > Yes. It is the same reboot limitation I've mentioned before. I see, thanks. _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec