Re: [PATCH] Configurable Magic Sysrq

[Andrew Morton]

Jan Kara <jack@xxxxxxx> wrote:
>
> > Jan Kara <jack@xxxxxxx> wrote:
>  > >
>  > >    I know about a few people who would like to use some functionality of
>  > >  the Magic Sysrq but don't want to enable all the functions it provides.
>  > 
>  > That's a new one.  Can you tell us more about why people want to do such a
>  > thing?
>    For example in a computer lab at the university the admin don't want
>  to allow users to Umount/Kill (mainly to make it harder for users to
>  screw up the computer) but wants to allow SAK/Unraw.
>    Another (actually not so legitimate ;) example is that in e.g. SUSE
>  kernels sysrq is turned off by default (some people are afraid that it
>  could be a security issue) so most users have it turned off and hence
>  when the computer deadlocks, there's no debugging output.

OK, fair enough.  I'll merge the patch if you talk suse into enabling
sysrq-T and sysrq-P and sysrq-M by default ;)
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