Re: [RFC] Changing SysRq - show registers handling

[Andrew Morton]

Dmitry Torokhov <dtor_core@xxxxxxxxxxxxx> wrote:
>
> > Well bear in mind that we can then rip all the pt_regs passing out from
> > everywhere, so as long as you edit every IRQ handler in the kernel it's a
> > net win ;)
> 
> Will you let me? :) USB and serio will at least not mess anyone else...

There are only 1300 of them.  Could do it in three hours.  Don't tempt me ;)

> > 
> > I _think_ it'll work - as long as all architectures go through a common
> > dispatch function like do_IRQ(), which surely they do.  The above code
> > could be an arch-neutral inline actually.
> > 
> > I'm not sure what's best really.  But something this general is more
> > attractive than something which is purely for sysrs-T.
> > 
> 
> I don't like the requirement of SysRq request processing being in hard
> interrupt handler - that excludes uinput-generated events and precludes
> moving keyboard handling to a tasklet for example.

Ho hum.  May as well run with your original idea I guess.
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