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Date:      Thu, 28 Jul 2016 08:24:12 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-fs@FreeBSD.org
Subject:   [Bug 211381] L2ARC degraded, repeatedly, on Samsung SSD 950 Pro nvme
Message-ID:  <bug-211381-3630-mIuPOBvTbT@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-211381-3630@https.bugs.freebsd.org/bugzilla/>
References:  <bug-211381-3630@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D211381

--- Comment #8 from Andriy Gapon <avg@FreeBSD.org> ---
(In reply to braddeicide from comment #7)
> io_error =3D 22 io_offset =3D 0 io_size =3D 0

This looks really strange.  I am not sure why L2ARC code would issue such
zio-s.
Ah, it's actually a parent zio of all zio-s for individual buffers written =
in a
pass.  If a single child zio fails, then the parent zio is marked as failed
too.

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