Hi!
> > On Thu, Sep 07, 2000 at 10:00:05AM -0400, James Simmons wrote:
> > > On the console level their are complex issues as well. Consider a
> > > system with 4 VTs attached to one machine. What if one person pressed
> > > Ctrl-Alt-Del. Anyone can bring the system down when multiple people depend
> > > on it.
> >
> > That particular one is a userspace issue; you can simply tell init not to do
> > anything when Ctrl-Alt-Del is pressed. (You'd also want to disable
> > magic-sysrq for the same reason.)
>
> Don't forget about where printk goes to. Should it goe to every VT or just
> one? As for SysRq do users want the option to disable for everyone, have
> it work for one VT or allow it for everyone? Do we want a all or nothing
> policy?
It is actually very easy. Just one keyboard, and just one monitor is
"system console". All others are just normal terminals.
There's already same problem with serial console / vt problem. There's
solution saying "user selects using command line what _real_ console
is". No new problem here.
[And yes, serial console can do both sysrq and printing kernel
messages. No new problems here.]
Pavel
-- I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care." Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Sep 15 2000 - 21:00:16 EST