H. Peter Anvin wrote:

 >Followup to:  <20011009105251.A20842@mueller.datastacks.com>
 >By author:    Crutcher Dunnavant <crutcher@datastacks.com>
 >In newsgroup: linux.dev.kernel
 >
 >>Attached is the patch from last week which provides the sysrq system
 >>with the following:
 >>
 >>a toggleable 'sticky' flag in /proc, which makes the sysrq key work 
on bad
 >>keyboards, and through bad KVMs.
 >>
 >>the ability to set which key in /proc, which makes the sysrq key work on
 >>system _without_ a 'sysrq' key; like bad KVMs.
 >>
 >>I've gotten no tracktion on this in a week, so I'm resubmitting it.
 >>
 >
 >I think doing this through procfs might be reasonable, but a kernel
 >command line option would be absolutely mandatory.  If things are
 >crappy you might not get to the point of fidding with /proc.
 >
 >Also, I really think SysRq has nothing to do under "Kernel
 >Hacking/Kernel Debugging".  More than anything else it's a system
 >administration feature.
 >
 >	-hpa
 >

Also, when configuring the kernel you can decide not to have /proc 
mounted (although this is very rare), but it might happen, if somebody 
decided not to use it, so as suggested, I think a kernel command line 
option would be nice.

Balbir