Re: zfs questions

[Greg Troxel <gdt%lexort.com@localhost>]

Also, Brad and I have been saying lockup, but this is not the
traditional system suddenly freezes and nothing happens.

The system is clearly up, and many things work.  But any process that
accesses a file in zfs (probably, in such a way that needs to allocate
memory or put something into ARC, or ?) blocks.  Often the wchan is zio.
Often it is flt_noram5.  These processes remain stuck even though there
is free ram.