Re: doubt regarding VMA

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> Threads live in the same process address space....as this is exactly
> what clone() with CLONE_VM does. Therefore, threads on the same group
> share same PGD (page global directory). However, with the help of
> segmentation (GDT and LDT, depends on how your pthread's version
> works), some memory areas are accessible from a thread, others are
> not...

If the threads share the same(single) PGD then AFAIK they must be
sharing the descriptor task_struct . because the threads extract the
the PGD from the mm_struct in the descriptor. Now how do we account
for the thread local storage ...if everything is shared ?? iam
confused about this .

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