Re: [PATCH 6/6] tty/sysrq: Add configurable handler to execute a compound action

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On Mon, May 11, 2020 at 03:59:18PM +0200, Andrzej Pietrasiewicz wrote:
> Some userland might want to execute e.g. 'w' (show blocked tasks), followed
> by 's' (sync), followed by 1000 ms delay and then followed by 'c' (crash)
> upon a single magic SysRq. Or one might want to execute the famous "Raising
> Elephants Is So Utterly Boring" action. This patch adds a configurable
> handler, triggered with 'C', for this exact purpose. The user specifies the
> composition of the compound action using syntax similar to getopt, where
> each letter corresponds to an individual action and a colon followed by a
> number corresponds to a delay of that many milliseconds, e.g.:
> 
> ws:1000c
> 
> or
> 
> r:100eis:1000ub

Cute, but why?  Who needs/wants this type of thing?

And again, no documentation :(

greg k-h



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