SVNews r322394

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2017-08-11 07:29:50 - r322394 by ed (Ed Schouten)

Complete list of files affected by revision r322394:

(Note: At the moment, these links point to ViewVC on svn.freebsd.org. They are probably slow. Do not overuse.)

   Contents     MODIFY   /stable/11  
  History   Contents   Diff   MODIFY   /stable/11/sys/amd64/cloudabi64/cloudabi64_sysvec.c  

Commit message:

MFC r321924:

  Keep top page on CloudABI to work around AMD Ryzen stability issues.

  Similar to r321899, reduce sv_maxuser by one page inside of CloudABI.
  This ensures that the stack, the vDSO and any allocations cannot touch
  the top page of user virtual memory.

  Considering that CloudABI userspace is completely oblivious to virtual
  memory layout, don't bother making this conditional based on the CPU of
  the running system.

 


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