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Commit 003bb8ab authored by Randy Dunlap's avatar Randy Dunlap Committed by Linus Torvalds
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documentation: update sysrq.txt magic sysrq keys 



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: default avatarRandy 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>
Acked-by: default avatarAlexander Shishkin <virtuoso@slind.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d2d8f66b

Documentation/sysrq.txt

+5 −2
Original line number Diff line number Diff line
@@ -75,7 +75,7 @@ On all - write a character to /proc/sysrq-trigger. e.g.: 


'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/sysrq-trigger. e.g.: 


'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