I'm using the LEV6_DEFER in all my kernels for quite
some time now and had absolutely no problems with it.
I can only say good things about it, no more silo
overflows after activating it. My suggestion would be
to make LEV6_DEFER the default and there could be
any problems with it put in an option to turn it off.

Any comments?

-- 
  Blaz Zupan, Ljubljanska 19/b, 62000 Maribor, Slovenia
     blaz.zupan@uni-mb.si, 2:380/104.40, GMIZO::BLAZ