Re: [PATCH 2.5] speedup kallsyms_lookup

[Andi Kleen]

> Ctrl-ScrollLock on mine if I'm following you correctly.
> Same as Sysrq-P if sysrq is enabled, except that the former
> is always available.

Try Ctrl-,Alt/AltGr-,Shift- with the same key.
> 
> Are there other similar functions that are available without
> Sysrq enabled?  If so, where can I find info about them?

Quite a lot.

In your keymap. e.g. on a SuSE system.

getkeycodes will output a map of the key codes.

% less /usr/share/kbd/keymaps/i386/include/linux-keys-bare.inc 

alt keycode  59 = Console_1
alt keycode  60 = Console_2
...
control alt keycode  59 = Console_1
control alt keycode  60 = Console_2
...
alt keycode  71 = Ascii_7
alt keycode  72 = Ascii_8
...
alt keycode 103 = KeyboardSignal
alt keycode 105 = Decr_Console
alt keycode 106 = Incr_Console
...
shift keycode 104 = Scroll_Backward
shift keycode 109 = Scroll_Forward
control alt keycode 111 = Boot
...
keycode  84 = Last_Console              # Alt+SysRq/PrintScrn
#keycode  99 = Control_backslash                # SysRq/PrintScrn
keycode  99 = VoidSymbol
control keycode  99 = Control_backslash

plain   keycode 70 = Scroll_Lock
shift   keycode 70 = Show_Memory
control keycode 70 = Show_State
alt     keycode 70 = Show_Registers
keycode 101 = Break                     # Ctrl+Break/Pause
control keycode 101 = Control_c
shift   keycode 101 = Control_backslash
keycode 119 = Pause                     # Break/Pause

-Andi