Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932441AbcLGPzg (ORCPT ); Wed, 7 Dec 2016 10:55:36 -0500 Received: from mo4-p00-ob.smtp.rzone.de ([81.169.146.217]:35313 "EHLO mo4-p00-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753033AbcLGPzf (ORCPT ); Wed, 7 Dec 2016 10:55:35 -0500 X-RZG-AUTH: :I2AFc2Cpfu9A5AwGH0nJ1D+CpGXQnvBFe6Em33ZhbA5Ry2PZdkRq X-RZG-CLASS-ID: mo00 Date: Wed, 07 Dec 2016 16:46:38 +0100 From: Olaf Hering To: KY Srinivasan , "vkuznets@redhat.com" CC: "gregkh@linuxfoundation.org" , "linux-kernel@vger.kernel.org" , "devel@linuxdriverproject.org" Subject: RE: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel User-Agent: K-9 Mail for Android In-Reply-To: References: <20161207085110.GC1618@aepfle.de> Message-ID: <7CEFFEF3-911A-4D37-AC37-DF8C6A3395BF@aepfle.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by mail.home.local id uB7FtmJb017459 Content-Length: 542 Lines: 15 Am 7. Dezember 2016 16:04:29 MEZ, schrieb KY Srinivasan : >Yes; I had played with this approach a while ago. The issue is that the >host knows about a >bunch of in memory state that will be different in the kexec kernel. >For instance if we did all >the cleanup as part of the boot sequence, we will need access to all >the interrupt/messaging >infrastructure that was set up in the previous kernel. Where is that stored? Perhaps it should be put into one place, so that the new kernel can find and use it. Olaf