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| author | Randy Dunlap <randy.dunlap@oracle.com> | 2010-10-27 01:20:40 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-27 04:32:41 +0400 |
| commit | 003bb8ab7cecbfd1830bbccf9c6a9e2047d27c5c (patch) | |
| tree | 1a98a458025f725dde1f9a16c2863e28d8356453 /Documentation/sysrq.txt | |
| parent | d2d8f66bb991757e360728da77920e18bd678767 (diff) | |
| download | linux-003bb8ab7cecbfd1830bbccf9c6a9e2047d27c5c.tar.xz | |
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: 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>
Acked-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/sysrq.txt')
| -rw-r--r-- | Documentation/sysrq.txt | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/Documentation/sysrq.txt b/Documentation/sysrq.txt index 5c17196c8fe9..312e3754e8c5 100644 --- a/Documentation/sysrq.txt +++ b/Documentation/sysrq.txt @@ -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 |