Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752850Ab3JPOwa (ORCPT ); Wed, 16 Oct 2013 10:52:30 -0400 Received: from mga14.intel.com ([143.182.124.37]:31467 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750755Ab3JPOw3 convert rfc822-to-8bit (ORCPT ); Wed, 16 Oct 2013 10:52:29 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.93,508,1378882800"; d="scan'208";a="375579820" From: "Luck, Tony" To: Matthew Garrett , Matt Fleming CC: "linux-efi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Andi Kleen , Seiji Aguchi , "x86@kernel.org" , "Fleming, Matt" Subject: RE: [PATCH 5/5] efi: Capsule update support and pstore backend Thread-Topic: [PATCH 5/5] efi: Capsule update support and pstore backend Thread-Index: AQHOynbXia3XS3Tiv0y3jvGPj16o5pn31eqA//+SeZA= Date: Wed, 16 Oct 2013 14:52:25 +0000 Message-ID: <3908561D78D1C84285E8C5FCA982C28F31D31122@ORSMSX106.amr.corp.intel.com> References: <1381931460-6999-1-git-send-email-matt@console-pimps.org> <1381931460-6999-6-git-send-email-matt@console-pimps.org> <20131016141939.GA28684@srcf.ucam.org> In-Reply-To: <20131016141939.GA28684@srcf.ucam.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.22.254.140] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 971 Lines: 19 > Where by "May not function correctly" you mean "May crash the system"? > I'm a little uneasy having this run by default if enabled, even if it's > disabled by default in the config. There's also an "either/or" choice between using efi-capsule with pstore, and the traditional kexec/kdump method for getting a memory dump from a crash. We have to go through a reset to save the capsule - but we don't want a reset for kexec. Perhaps we can pass the reset parameters through the kexec path to the new kernel to make it do the right kind of reset ... but the value of the capsule dump is minimal if kdump managed to dump everything. Bottom line: users need to make an informed choice to use efi-capsule + pstore. -Tony -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/