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Date: Wed, 08 Oct 2014 08:55:26 +0300
From: Andriy Gapon <avg@FreeBSD.org>
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To: Steve Wills <swills@FreeBSD.org>
Subject: Re: zfs hang
References: <20141008004045.GA24762__48659.9047123038$1412728878$gmane$org@mouf.net>
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On 08/10/2014 03:40, Steve Wills wrote:
> Hi,
> 
> Not sure which thread this belongs to, but I have a zfs hang on one of my boxes
> running r272152. Running procstat -kka looks like:
> 
> http://pastebin.com/szZZP8Tf
> 
> My zpool commands seem to be hung in spa_errlog_lock while others are hung in
> zfs_lookup. Suggestions?

There are several threads in zio_wait.  If this is their permanent state then
there is some problem with I/O somewhere below ZFS.


-- 
Andriy Gapon