From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 63735149C4A for ; Fri, 7 Feb 2025 03:01:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738897289; cv=none; b=uz4A1866s6hTu4JBWwFqHEtB4HSSNjsIpczlldm0NHPbYxASQ+vh7VQFo/fkqXy1PUl4lMf13fX31Q6hHZ/0GSRB+ULqrwOy923ZqVc2yqz5IAHXLtCR52IhCb8Pgi4vHkQj4R0OtyOAbGd8uIGFhrADU+LrGijcJzw8c257bWg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738897289; c=relaxed/simple; bh=P8YV9TWj0gv0Tib8gKdyU/4QfP2apU0uWIEntYw5YS0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=rjl3kypXPoLIv8woMJ/9iG/TlXbgwv1me3jos2Pc5UZjQ7DjBY/C5Vok31TWU5yWHh3J/SDppQtEcDo3YDJWrYieayTLqsuti+bb40pfUi/k4khqD7KrlMluLvLeuOU1ZWP1IvHOYni6/pP0bDDwYiv/RBS42vuM0iOXhRZEtVM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=PR5SiEif; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="PR5SiEif" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1738897286; 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=bovCnASvGHhB/zWZqXML/1CrlUVnFOGyxkprm/QLHBA=; b=PR5SiEif0FRfnnSVsARnesPQRc2soN2Aq0PcnFGPw9ZBXqS1htpKzDpLnrQTWGEm0ZKGe8 VAiYtOvyvlOLd41HxRkMppW/J6Ps9WZL06xVjMsXf4W6NJeby7sgRZCRioGoGPm/Rmx2O+ PQ7vFWrSvBQgHILvrlCF5+QEI1EczRo= Received: from mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-595-EAWj6CjfObSvsuBwm3Abqg-1; Thu, 06 Feb 2025 22:01:24 -0500 X-MC-Unique: EAWj6CjfObSvsuBwm3Abqg-1 X-Mimecast-MFC-AGG-ID: EAWj6CjfObSvsuBwm3Abqg Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (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 mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 02B451956086; Fri, 7 Feb 2025 03:01:23 +0000 (UTC) Received: from localhost (unknown [10.72.112.206]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id C51F71800570; Fri, 7 Feb 2025 03:01:19 +0000 (UTC) Date: Fri, 7 Feb 2025 11:01:15 +0800 From: Baoquan He To: Coiby Xu Cc: kexec@lists.infradead.org, Ondrej Kozina , Milan Broz , Thomas Staudt , Daniel P =?iso-8859-1?Q?=2E_Berrang=E9?= , Kairui Song , Jan Pazdziora , Pingfan Liu , Dave Young , linux-kernel@vger.kernel.org, x86@kernel.org, Dave Hansen , Vitaly Kuznetsov Subject: Re: [PATCH v7 0/7] Support kdump with LUKS encryption by reusing LUKS volume keys Message-ID: References: <20250116065825.1041558-1-coxu@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250116065825.1041558-1-coxu@redhat.com> X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Hi Coiby, On 01/16/25 at 02:58pm, Coiby Xu wrote: > LUKS is the standard for Linux disk encryption, widely adopted by users, > and in some cases, such as Confidential VMs, it is a requirement. With > kdump enabled, when the first kernel crashes, the system can boot into > the kdump/crash kernel to dump the memory image (i.e., /proc/vmcore) > to a specified target. However, there are two challenges when dumping > vmcore to a LUKS-encrypted device: This v7 series looks good to me, other than Randy's concern. Do you plan to repost to update the document? Thanks Baoquan