[GHC] #11566: I don't need madvise MADV_DONTNEED

[GHC]

#11566: I don't need madvise MADV_DONTNEED
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        Reporter:  mfox              |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:  aarch64
 Type of failure:  Incorrect         |            Test Case:
  warning at compile-time            |
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by mfox):

 Thanks. Should this be default for arm64? Is it something hardware can't
 support, needs kernel improvement or something that will eventually work?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11566#comment:3>
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