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Date:      Mon, 5 Mar 2012 22:00:03 -0500
From:      Mark Saad <nonesuch@longcount.org>
To:        FreeBSD Stable <freebsd-stable@freebsd.org>
Subject:   Re: Heavy fs corruption with 9.0-RELEASE
Message-ID:  <540DFF08-0064-4AC3-9FFA-31817148B302@longcount.org>
In-Reply-To: <4F553C82.2000305@delphij.net>
References:  <CACqU3MW734kWjNxH2SWHBb_ERiN9TE0ju6DM%2BAh8zkGmh-j5TA@mail.gmail.com> <4F553C82.2000305@delphij.net>

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On Mar 5, 2012, at 5:21 PM, Xin Li <delphij@delphij.net> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
>=20
> On 03/05/12 14:12, Arnaud Lacombe wrote:
>> Hi,
>>=20
>> I've been running a couple of system with 9.0-RELEASE since it is
>> out. All the system were installed through the standard
>> installation procedure. After unclean reboot, either crash or
>> power-failure, I get a huge amount of really bad filesystem
>> corruption (read: "silent", fs-wide, corruptions). This happens
>> with either i386 or amd64 build. Systems involved use compact flash
>> as their system permanent storage medium.
> [...]
>> I do not see this behavior when running 9.0-RELEASE on top of a=20
>> 7.4-RELEASE userland (including FS). I've seen this behavior on=20
>> various CF, so a single bad card is unlikely to be the culprit.
>=20
> FWIW FS is part of kernel.  So technically you're running 9.0-RELEASE
> UFS with 7.4-RELEASE userland.
>=20
>> Here are the currently mounted filesystem on the machine, as well
>> as mount options:
>>=20
>> # mount /dev/ada0p2 on / (ufs, local, journaled soft-updates) devfs
>> on /dev (devfs, local, multilabel)
>>=20
>> Any hints appreciated.
>=20
> My first step would be take out the journalling soft-updates to see if
> things improves.  Could you test if this happens using brand new
> 9.0-RELEASE, but with journaled soft-updates disabled?
>=20
> (Hint: tunefs -j disable /; tunefs -n enable /; reboot in single user
> mode).
>=20
> Note that since you say 7.4-RELEASE userland wouldn't have similar
> issue, it might indicate a bug with the new journalled soft-updates's
> fsck implementation.
>=20
 How are you fsck'ng the 9.0 ufs ? Do you have a 9.0 fsck , tunefs , and mou=
nt ?   Also was the file system created on 9.0 or 7.4 or better yet was it a=
 7.4 newfs or 9.0 newfs ?  What options did you use ?=20


> Cheers,
> - --=20
> Xin LI <delphij@delphij.net>    https://www.delphij.net/
> FreeBSD - The Power to Serve!        Live free or die
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---
Mark saad | mark.saad@longcount.org




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