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Date:      Thu, 17 Mar 2011 11:03:54 -0700
From:      Freddie Cash <fjwcash@gmail.com>
To:        Olivier Smedts <olivier@gid0.org>
Cc:        FreeBSD-Current <freebsd-current@freebsd.org>
Subject:   Re: ZFS import panic with r219703
Message-ID:  <AANLkTindHNaFtDho5eO3UJ=pKK73qNfyoqh1TTZzunux@mail.gmail.com>
In-Reply-To: <AANLkTi=6yCUEZGHLtOVUbHrieqd62LE51-Bs9UKLF1zQ@mail.gmail.com>
References:  <AANLkTikEBAXz6LO3JOJq7ro0_MRcSUBZa2Fq0WdcJxsQ@mail.gmail.com> <AANLkTikwOhLe4=1b-zc4XCMHeL=ANvApyww%2BjG5gykC5@mail.gmail.com> <AANLkTikdCNXH7KujZ6UqEzL%2B-ABF8vyFKL8yfzhr6sAz@mail.gmail.com> <AANLkTi=6yCUEZGHLtOVUbHrieqd62LE51-Bs9UKLF1zQ@mail.gmail.com>

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On Thu, Mar 17, 2011 at 10:00 AM, Olivier Smedts <olivier@gid0.org> wrote:
> 2011/3/17 Freddie Cash <fjwcash@gmail.com>:
>>> Hrm, it looks like the "pool roll-back on import" feature is working.
>>>
>>> # zpool import -F -d /dev/hast storage
>>>
>>> The above command imported the pool successfully. =C2=A0No dmu_free_ran=
ge()
>>> errors. =C2=A0No solaris assert. =C2=A0No kernel panic. =C2=A0Will try =
hammering on
>>> the system a bit to see if that sticks or whether the space_map errors
>>> show up again.
>>
>> Damn, of course that would be too easy. =C2=A0:( =C2=A0Adding or removin=
g any
>> data from the pool still causes it to panic with the dmu_free_range()
>> assertion.
>
> Does resilvering help after the forced import ?

I think this pool is hooped.  :(  It won't import in any way now, no
matter what combination of options I use: readonly, force, roll-back,
without the corrupted hast device so it's in a degraded state, etc.

The latest panic is:

solaris assert: zio-io_type !=3D ZIO_TYPE_WRITE || spa_writable(spa),
file: /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs=
/zfs/zio.c,
line 2321

In case anyone is interested in the results, I've put core.txt.12 up
at http://www.sd73.bc.ca/downloads/crash/ which is the core file
relating to the above panic.

I think after lunch I'm going to destroy the pool and start over.
This box went through a lot of crashes and hangs while finding the
right loader.conf tunables for hast/zfs and issues with CompactFlash
for the OS.  Now that I've got those set and figured out, I'm going to
start over and see how things go.

--=20
Freddie Cash
fjwcash@gmail.com



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