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SubjectRe: [PATCH] documentation: update sysrq.txt key mappings
On Tue, Sep 21, 2010 at 04:01:42 -0700, Randy Dunlap wrote:
> From: Randy Dunlap <randy.dunlap@oracle.com>
>
> 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 <randy.dunlap@oracle.com>
> Cc: Jason Wessel <jason.wessel@windriver.com>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: "James E.J. Bottomley" <James.Bottomley@suse.de>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Alexander Shishkin <virtuoso@slind.org>

Acked-by: Alexander Shishkin <virtuoso@slind.org>

> ---
> Documentation/sysrq.txt | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> --- lnx-2636-rc5.orig/Documentation/sysrq.txt
> +++ lnx-2636-rc5/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


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