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Date: Wed, 07 Aug 2013 11:18:45 +0300
From: Andriy Gapon <avg@FreeBSD.org>
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To: hartzell@alerce.com
Subject: Re: Help with filing a [maybe] ZFS/mmap bug.
References: <20967.760.95825.310085@gargle.gargle.HOWL>
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on 18/07/2013 20:44 George Hartzell said the following:
> Andriy Gapon writes:
>  > on 17/07/2013 23:47 George Hartzell said the following:
>  > > How should I move forward with this?
>  > 
>  > Could you please try to reproduce this problem using a kernel built with
>  > INVARIANTS options?
> 
> I added INVARIANT_SUPPORT and INVARIANTS options to the GENERIC
> kernel, rebuilt it, installed it and running through my "test case"
> generated a lot of invalid flac files.  I"m not sure what the options
> are/were supposed to do though, it looks like they generally lead to
> KASSERTS, which lead to abort()'s.  Nothing in /var/log/messages or on
> the console.

George,

do you have anything new on this issue?

Could you please try the following patch?
http://people.freebsd.org/~avg/zfs-putpages.diff

I expect it to not really fix the issue, but it may help to narrow it down.
Please keep INVARIANTS.
Thank you.
-- 
Andriy Gapon