Re: Dangerous use of alloca

[Justus Winter]

Quoting Agustina Arzille (2016-03-15 15:44:13)
> > Good catch.  However, alloca is dangerous even if used correctly, and
> > is best be avoided.  Would you be so kind to prepare a patch to that
> > end?
> > 
> > Thanks,
> > Justus
> 
> Sure. I will cook up a patch when I get home. Right now, the 
> alternatives
> to using alloca that I can think of are either:
> 1) A global buffer with a fixed size, or
> 2) 'kalloc' and friends.
> 
> Obviously, (2) would be the preferred option, but I'm not sure if it's
> completely available during bootstrap. What do you guys think?

The bootscript parser creates userspace tasks.  At that point the
kernel is fully initialized, feel free to use kalloc.