Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261655AbVAMPdJ (ORCPT ); Thu, 13 Jan 2005 10:33:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261656AbVAMPcC (ORCPT ); Thu, 13 Jan 2005 10:32:02 -0500 Received: from www.ssc.unict.it ([151.97.230.9]:60932 "HELO ssc.unict.it") by vger.kernel.org with SMTP id S261657AbVAMPbL (ORCPT ); Thu, 13 Jan 2005 10:31:11 -0500 Subject: [patch 2/8] uml: readd CONFIG_MAGIC_SYSRQ for UML To: akpm@osdl.org Cc: linux-kernel@vger.kernel.org, jdike@addtoit.com, user-mode-linux-devel@lists.sourceforge.net, blaisorblade_spam@yahoo.it From: blaisorblade_spam@yahoo.it Date: Thu, 13 Jan 2005 06:13:27 +0100 Message-Id: <20050113051327.B173A6324B@zion> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2452 Lines: 60 From: Paolo 'Blaisorblade' Giarrusso This config option was lost during the creation of lib/Kconfig.debug, due to a bad expressed dependency; I also moved the option back to its original place for UML (it is near CONFIG_MCONSOLE since it depends on that). Signed-off-by: Paolo 'Blaisorblade' Giarrusso --- linux-2.6.11-paolo/arch/um/Kconfig | 19 +++++++++++++++++++ linux-2.6.11-paolo/lib/Kconfig.debug | 1 - 2 files changed, 19 insertions(+), 1 deletion(-) diff -puN lib/Kconfig.debug~uml-readd-config-magic-sysrq lib/Kconfig.debug --- linux-2.6.11/lib/Kconfig.debug~uml-readd-config-magic-sysrq 2005-01-13 01:48:41.153139144 +0100 +++ linux-2.6.11-paolo/lib/Kconfig.debug 2005-01-13 01:48:41.157138536 +0100 @@ -23,7 +23,6 @@ config MAGIC_SYSRQ config MAGIC_SYSRQ bool "Magic SysRq key" depends on DEBUG_KERNEL && (H8300 || M68KNOMMU || V850) - depends (USERMODE && MCONSOLE) help Enables console device to interpret special characters as commands to dump state information. diff -puN arch/um/Kconfig~uml-readd-config-magic-sysrq arch/um/Kconfig --- linux-2.6.11/arch/um/Kconfig~uml-readd-config-magic-sysrq 2005-01-13 01:48:41.155138840 +0100 +++ linux-2.6.11-paolo/arch/um/Kconfig 2005-01-13 01:48:41.158138384 +0100 @@ -145,6 +145,25 @@ config MCONSOLE It is safe to say 'Y' here. +config MAGIC_SYSRQ + bool "Magic SysRq key" + depends on MCONSOLE + ---help--- + If you say Y here, you will have some control over the system even + if the system crashes for example during kernel debugging (e.g., you + will be able to flush the buffer cache to disk, reboot the system + immediately or dump some status information). A key for each of the + possible requests is provided. + + This is the feature normally accomplished by pressing a key + while holding SysRq (Alt+PrintScreen). + + On UML, this is accomplished by sending a "sysrq" command with + mconsole, followed by the letter for the requested command. + + The keys are documented in . Don't say Y + unless you really know what this hack does. + config HOST_2G_2G bool "2G/2G host address space split" default n _ - 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/