From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760485Ab0JZVXl (ORCPT ); Tue, 26 Oct 2010 17:23:41 -0400 Received: from rcsinet10.oracle.com ([148.87.113.121]:17908 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760453Ab0JZVXi (ORCPT ); Tue, 26 Oct 2010 17:23:38 -0400 Date: Tue, 26 Oct 2010 14:20:40 -0700 From: Randy Dunlap To: lkml Cc: torvalds , Jason Wessel , "David S. Miller" , "James E.J. Bottomley" , David Airlie , Alexander Shishkin Subject: [PATCH] documentation: update sysrq.txt magic sysrq keys Message-Id: <20101026142040.2f0b70a1.randy.dunlap@oracle.com> Organization: Oracle Linux Eng. X-Mailer: Sylpheed 2.7.1 (GTK+ 2.16.6; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Randy Dunlap Update Documentation/sysrq.txt magic sysrq keys: - 'g' is for kgdb (not arch-specific); - add 2 new uses for 'v', remove the Voyager info; - add 'y' info (SPARC-64 specific); Signed-off-by: Randy Dunlap Cc: Jason Wessel Cc: "David S. Miller" Cc: "James E.J. Bottomley" Cc: David Airlie Acked-by: Alexander Shishkin --- Documentation/sysrq.txt | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) --- lnx-2636-g6-docs.orig/Documentation/sysrq.txt +++ lnx-2636-g6-docs/Documentation/sysrq.txt @@ -75,7 +75,7 @@ On all - write a character to /proc/sys 'f' - Will call oom_kill to kill a memory hog process. -'g' - Used by kgdb on ppc and sh platforms. +'g' - Used by kgdb (kernel debugger) 'h' - Will display help (actually any other key than those listed here will display help. but 'h' is easy to remember :-) @@ -110,12 +110,15 @@ On all - write a character to /proc/sys 'u' - Will attempt to remount all mounted filesystems read-only. -'v' - Dumps Voyager SMP processor info to your console. +'v' - Forcefully restores framebuffer console +'v' - Causes ETM buffer dump [ARM-specific] 'w' - Dumps tasks that are in uninterruptable (blocked) state. 'x' - Used by xmon interface on ppc/powerpc platforms. +'y' - Show global CPU Registers [SPARC-64 specific] + 'z' - Dump the ftrace buffer '0'-'9' - Sets the console log level, controlling which kernel messages