Re: Pb with sysrq (kernel 2.1 since sysrq exists)

David Woodhouse (David.Woodhouse@mvhi.com)
Tue, 20 Oct 1998 22:10:42 +0100


christophe.leroy5@capway.com said:
> On my computer, all sys request alt+syst+letter combination works
> except alt+syst+b (reboot) But if in kernel I replace the b by an x
> for instance, it works.

> I've tried on another machine, and alt+syst+b works.

We have exactly the same thing here, and I'd never actually got round to
investigating it. SysRq-B is never being passed to handle_sysrq(), but SysRq-X
seems to work.

Further investigation shows that other keys which don't ever reach
handle_sysrq() are:
1 2 3 4 7 8 9 0 F10 F11 F12 b n / numpad-minus numpad-enter
also the cursor keys and the (insert, home, pgup, del, end, pgdn) block

All numpad numbers work OK.

(L works but then the fucking kernel dies. Nobody ever did tell me why this
was done.)


It's a PS/2 keyboard on an Intel 440BX motherboard.

---- ---- ----
David Woodhouse David.Woodhouse@mvhi.com Office: (+44) 1223 810302
Project Leader, Process Information Systems Mobile: (+44) 976 658355
Axiom (Cambridge) Ltd., Swaffham Bulbeck, Cambridge, CB5 0NA, UK.
finger dwmw2@ferret.lmh.ox.ac.uk for PGP key.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/