K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2011-02-05T15:10:27.324126Z
K 7
svn:log
V 252
Clear the padding when returning context to the usermode, for
MI ucontext_t and x86 MD parts.
Kernel allocates the structures on the stack, and not clearing
reserved fields and paddings causes leakage.

Noted and discussed with:	bde
MFC after:	2 weeks

END