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    • Dr. Matthias St. Pierre's avatar
      Revert the DEVRANDOM_WAIT feature · a08714e1
      Dr. Matthias St. Pierre authored
      The DEVRANDOM_WAIT feature added a select() call to wait for the
      `/dev/random` device to become readable before reading from the
      `/dev/urandom` device. It was introduced in commit 38023b87
      in order to mitigate the fact that the `/dev/urandom` device
      does not block until the initial seeding of the kernel CSPRNG
      has completed, contrary to the behaviour of the `getrandom()`
      system call.
      
      It turned out that this change had negative side effects on
      performance which were not acceptable. After some discussion it
      was decided to revert this feature and leave it up to the OS
      resp. the platform maintainer to ensure a proper initialization
      during early boot time.
      
      Fixes #9078
      
      This partially reverts commit 38023b87
      
      .
      
      Reviewed-by: default avatarTim Hudson <tjh@openssl.org>
      Reviewed-by: default avatarViktor Dukhovni <viktor@openssl.org>
      (Merged from https://github.com/openssl/openssl/pull/9084)
      a08714e1
  7. Jun 07, 2019