Re: [PATCH] Stateful Magic Sysrq Key

[Crutcher Dunnavant <crutcher@datastacks.com>]

++ 02/10/01 10:48 +0200 - willy tarreau:
> > I'd suggest either making this behaviour optional,
> or making it
> > so that hitting alt-sysrq twice, without any other
> keys being
> > pressed makes the next key stick.
> 
> I agree with you that there's a risk. Mike Harris had
> written a
> patch for 2.2 which did something similar, but
> slightly better 
> IMO since it avoids risks of mis-press, handles
> correctly
> broken keyboards and keeps compatible with the
> existing 
> method. Basically, it allows the user to press Alt,
> then SysRQ,
> release SysRQ then press the desired key, and later
> release
> Alt. In fact, it only resets the "magic-key-mode" flag
> after Alt
> has been released, and doesn't bother when SysRq is
> released.

But this would require that alt be pressed. This is not acceptable on
exactly the sort of boards which require this patch.

I will look at adding a 'sysrq-sticky' entry to proc, which will do the
obvious thing. I think that this should address everyone's concerns.

-- 
Crutcher        <crutcher@datastacks.com>
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