uml: physical memory shouldn't include initial stack
The top of physical memory should be below the initial process stack, not the top of the address space, at least for as long as the stack isn't known to the kernel VM system and appropriately reserved. Cc: "Christopher S. Aker" <caker@theshore.net> Signed-off-by: NJeff Dike <jdike@linux.intel.com> Cc: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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