Re: [PATCH]: Runtime sysrq toggle for 2.1.107,2.1.108pre1.
Myrdraal (myrdraal@jackalz.dyn.ml.org)
Sun, 28 Jun 1998 15:47:47 -0400
On Sun, Jun 28, 1998 at 03:06:53PM +0300, Tuomas Heino wrote:
Hi,
> [snip]
> > Well, personally I only see any of this making a difference if the system
> > console is publically accessable (ie, library computers or something.) - This
> > is definately not the most common use, IMHO.
> Well... I think I should mention that there are cases where leaving the
> computer vlock'd is relatively safe - as in people aren't stupid enough to
> break the hardware but are stupid enough to "press random keys"... I think
> a password-protected sysrq would be useful in some situations... especially
> when somebody bothers to implement some more multi-user friendly console
> things like a vlock equivalent which won't be able to lock "unused" ttys;
> just current user's ttys... [and yes such things would be really useful
> for real multi-user computers where users don't trust each other;)]
Regarding that password protected sysrq, I spent the day messing around
with that. Take a look at the next two messages from me that hit the list,
let me know what you think :)
> [snip]
> > > Or, supposing you sit in front of the computer waiting for
> > > the crash, why dont you just boot a kernel with SysRq?
> > Well, this requires a recompile/reboot. ('Okay,' you might say, 'But you had
> > to reboot anyhow if it crashed.', that's true. But you still do not have to
> > recompile. Besides, if the X server crashes, you don't have to reboot the
> > system if you can just slam alt-sysrq-r, then run something to reset the
> > video mode.)
> And sometimes the bugs don't show up easily... as in if you recompile the
> memory layout will propably be a bit different and so on...
That's a point.
-Myrdraal
--
Linux jackalz 2.1.108 #77 Sat Jun 27 00:55:49 EDT 1998 i486
3:45pm up 1 day, 14:16, 16 users, load average: 0.26, 0.08, 0.02
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