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Date: Fri, 10 Jan 2014 01:52:33 +0400
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: Adam Nowacki <nowakpl@platinum.linux.pl>
Subject: Re: ZFS 1MB recordsize
Message-ID: <20140109215233.GA16734@zxy.spb.ru>
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On Tue, Jan 07, 2014 at 06:06:39PM +0100, Adam Nowacki wrote:

> On 2014-01-07 17:34, Slawa Olhovchenkov wrote:
> > What is trouble to support 1 MB blocksize in ZFS?
> 
> see http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/178388
> Some extra work is needed to make it user friendly, for example feature
> flag to prevent kernel panics on older systems. This is only speaking of

I am try to access file with 1M recordsize on older system.
Success. No kernel panic. correct md5.