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Date:      Tue, 22 Jan 2019 17:16:44 +0000
From:      bugzilla-noreply@freebsd.org
To:        fs@FreeBSD.org
Subject:   [Bug 225423] panic: softdep_deallocate_dependencies: dangling deps
Message-ID:  <bug-225423-3630-qELpWXEj6M@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-225423-3630@https.bugs.freebsd.org/bugzilla/>
References:  <bug-225423-3630@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D225423

Warner Losh <imp@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |imp@FreeBSD.org

--- Comment #23 from Warner Losh <imp@FreeBSD.org> ---
The issue is well understood. We've hit an error. We have dirty buffers that
are interdependent. We can't just throw them away because of that
interdependence, but have to carefully unwind the dependency tree. That code
hasn't been written yet, and rather than continue when we know we've lost d=
ata,
we panic. This panic is known to be too aggressive because we also know that
there's no that the data could be flushed to media because the media is gon=
e,
never to return. There's no patches available (unless Kirk has some I've not
noticed).

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