ZFS version 13 in FreeBSD (Current)

Kip Macy has committed a couple of long-discussed patches to ZFS on FreeBSD current (and 7-Stable) to increase its stability. Most paches are similar to those on OpenSolaris, and they should bring FreeBSD up to Solaris  ZFS level with regards to performance and stability.

  •  the recurring deadlock was fixed by deferring vinactive to a dedicated thread
  •  zfs boot for all pool types now works
  •  kmem now goes up to 512GB so arc is now limited by physmem
  •  the arc now experiences backpressure from the vm (which can be too much – but this allows ZFS to work without any tunables on amd64)
  •  frequently recurring LOR in the ARC fixed
  •  zfs send coredump fix
  •  fixes for various PRs

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