REISUB is indeed a Magic SysRq combination. It's like your s+b combo, but more complete. See the wiki page [1] for more information on what exactly that combo does.
[1]: http://en.wikipedia.org/wiki/Magic_SysRq_key
REISUB is indeed a Magic SysRq combination. It's like your s+b combo, but
more complete. See the wiki page [1] for more information on what exactly
that combo does.
[1]: http:// en.wikipedia. org/wiki/ Magic_SysRq_ key