Il 26/05/2014 15:24, Jeff Smith ha scritto:
Your addr2 mmap() call is a bit incorrect semantically and syntactically (you skipped the length arg). The addr2 request will fail because mmap() does not implicitly munmap() occupied virtual address space.
With MAP_FIXED it does. It is in the man page. Paolo
Even if you did that, the following still has a race condition between the addr2 request and another thread grabbing the same virtual space, which nothing short of a lock on all threads' mmap()-ing logic can protect:
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