Messages in this thread Patch in this message | | | Date | Tue, 21 Sep 2010 16:01:42 -0700 | From | Randy Dunlap <> | Subject | [PATCH] documentation: update sysrq.txt key mappings |
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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> --- 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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