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Keith Randall authored
We return memory to the kernel with madvise(..., DONTNEED). Also mark returned memory with NOHUGEPAGE to keep the kernel from merging this memory into a huge page, effectively reallocating it. Only known to be a problem on linux/{386,amd64,amd64p32} at the moment. It may come up on other os/arch combinations in the future. Fixes #8832 Change-Id: Ifffc6627a0296926e3f189a8a9b6e4bdb54c79eb Reviewed-on: https://go-review.googlesource.com/5660 Reviewed-by:Dmitry Vyukov <dvyukov@google.com>
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