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Date: Sun, 16 Nov 2014 22:07:26 +0400
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: Xin LI <delphij@FreeBSD.org>
Subject: Re: svn commit: r274337 - in head: cddl/contrib/opensolaris/cmd/zdb
 cddl/contrib/opensolaris/cmd/zfs cddl/contrib/opensolaris/cmd/zpool
 cddl/contrib/opensolaris/cmd/zstreamdump cddl/contrib/opensolaris...
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On Mon, Nov 10, 2014 at 08:20:22AM +0000, Xin LI wrote:

> Author: delphij
> Date: Mon Nov 10 08:20:21 2014
> New Revision: 274337
> URL: https://svnweb.freebsd.org/changeset/base/274337
> 
> Log:
>   MFV r274273:
>   
>   ZFS large block support.
>   
>   Please note that booting from datasets that have recordsize greater
>   than 128KB is not supported (but it's Okay to enable the feature on
>   the pool).  This *may* remain unchanged because of memory constraint.
>   
>   Limited safety belt is provided for mounted root filesystem but use
>   caution is advised.
>   
>   Illumos issue:
>       5027 zfs large block support
>   
>   MFC after:	1 month

Thanks!
Please, add tunnable and sysctl for modify dsl_dataset.c:zfs_max_recordsize