map bss to addr zero

[Mulyadi Santosa]

On Mon, Aug 27, 2012 at 3:31 AM, Srinivas Ramanan
<srinivas.ramanan at gmail.com> wrote:
> Hi all,
> This is an interview question.
> "What is the implication of mapping BSS to the Virtual Memory Segment 0?"

segment 0? or mapping zero page?

If it is indeed zero page, well, it's to trigger page fault later and
do actual page allocation when the variables (or structure etc) at BSS
is actually accessed.

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
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