2) Lack of requirements - we don't know what people want.
In addition to the requirements already stated by others, another
crucial one is a resolution of the infamous NFS/VM deadlock. There
have been numerous bugs filed over the years concerning it but I
believe the current one is
5065254 NFS/UFS deadlock when system is both NFS server and
If non-global zones are going to be NFS servers, then fixing this is a
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