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Date:      Tue, 30 Sep 2014 01:06:53 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 193875] [zfs] [panic] [reproducable] zfs/space_map.c: solaris assert: sm->sm_space + size <= sm->sm_size
Message-ID:  <bug-193875-8-CRWZQnjRRr@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-193875-8@https.bugs.freebsd.org/bugzilla/>
References:  <bug-193875-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D193875

--- Comment #5 from Xin LI <delphij@FreeBSD.org> ---
(In reply to Palle Girgensohn from comment #4)
> I did not try a newly created pool, it is a large pool with data, one of =
two
> redundant systems where we use zfs send | ssh | zfs recv to keep them in
> sync. The other machine is still on 9.3, and we got this problem after
> updating one system to 10.0. So, we cannot really upgrade just yet. Also,=
 it
> shouln't present such a big problem just running an old version...?

Since you haven't upgraded the pool, will it be possible for you to downgra=
de
your kernel/world and see if you can reproduce the problem?

> But as you say, there seems to something fishy with the pool, and maybe
> there is nothing wrong with the kernel itself.=20
>=20
> Are you sure there are no other ways to fix this but to recreate the pool?
> Thera are just Terabytes of data, it will take a week... :-/

Yeah I know =EF=BC=9A=EF=BC=88

> is there no zdb magic or zpool export + scrub + zpool import ditto with
> vfs.zfs.recover =3D1 that could help?

Unfortunately, space map corruptions are fatal currently.  In the future ma=
ybe
we can implement a tool that traverses all data and rebuild the space map f=
rom
that, but it's not trivial...

--=20
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