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Date:      Wed, 06 Apr 2016 12:43:26 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-fs@FreeBSD.org
Subject:   [Bug 207667] Reproducable kernel panics whilst scrubbing a zvol pool...
Message-ID:  <bug-207667-3630-mWP94hfUhI@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-207667-3630@https.bugs.freebsd.org/bugzilla/>
References:  <bug-207667-3630@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D207667

--- Comment #8 from Benjamin Kaduk <bjk@FreeBSD.org> ---
(In reply to Michelle Sullivan from comment #7)

> That would make sense, but can't swap to zfs either (options there are fi=
le - which won't work (documented) or zvol which is not documented but tryi=
ng it just gave an inappropriate ioctl when trying to add the dump dev) pos=
sibly the other thing I could do it take the hotspare device out of the poo=
l and turn it into a sump dev... but really trying not to screw with the ex=
isting config....

Of those, I would only expect taking the hotspare out of the pool and using=
 the
raw device for swap to provide a usable crash dump, but am not at the point=
 of
recommending that you do so.

> Did you take a look at the photo of the console?  Does it seem interestin=
g?  It is 100% reproducable and the panic is instant.

I did look at it, and it seems interesting, but unfortunately outside my ar=
ea
of expertise.  Hopefully Andriy will take a look.

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