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From: Gavin Atkinson <gavin@FreeBSD.org>
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Date: Tue, 18 Aug 2009 15:57:29 +0100
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Cc: FreeBSD current <freebsd-current@FreeBSD.org>,
	Pawel Dawidek Jakub <pjd@FreeBSD.org>
Subject: Re: Bad news re: new (20080817) ZFS patches and send/recv (broken
	again)
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On Tue, 2009-08-18 at 16:20 +0200, Thomas Backman wrote:
> OK, I tried to reproduce this in a VM... And I have to say I was a bit  
> surprised: after doing an installkernel/installworld, but BEFORE  
> REBOOTING (I install in "multi"-user (one user via ssh), never had a  
> problem with that), the same issue has appeared, so I'm guessing  
> zfs.ko can't be to blame here?
> What the heck?

So, you're using a new zfs binary, with an old kernel?  This isn't
supported and there's every chance it will fail in odd ways.

Gavin