lockup during zfs destroy

[Richard Perini]

On Wed, Oct 04, 2017 at 10:28:27PM -0700, Freddie Cash wrote:
> On Oct 4, 2017 10:13 PM, "javocado" <javocado at gmail.com> wrote:
> 
> Setting vfs.zfs.free_max_blocks to 20k has not helped unfortunately.
> 
> 
> No, that won't help with this issue as the destroy operation is already in
> progress and part of a transaction group. But it will mitigate or
> (hopefully) prevent this issue in the future.

A bit of a long shot as there's no mention of the FreeBSD version involoved,
but we had somewhat similar symptoms caused by bug: 

	https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222288

Cheers,

--
Richard Perini  
Ramico Australia Pty Ltd   Sydney, Australia   rpp at ci.com.au  +61 2 9552 5500
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