Heavy fs corruption with 9.0-RELEASE

[Xin Li]

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On 03/05/12 14:12, Arnaud Lacombe wrote:
> Hi,
> 
> 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 
> 7.4-RELEASE userland (including FS). I've seen this behavior on 
> various CF, so a single bad card is unlikely to be the culprit.

FWIW FS is part of kernel.  So technically you're running 9.0-RELEASE
UFS with 7.4-RELEASE userland.

> Here are the currently mounted filesystem on the machine, as well
> as mount options:
> 
> # mount /dev/ada0p2 on / (ufs, local, journaled soft-updates) devfs
> on /dev (devfs, local, multilabel)
> 
> Any hints appreciated.

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?

(Hint: tunefs -j disable /; tunefs -n enable /; reboot in single user
mode).

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.

Cheers,
- -- 
Xin LI <delphij at delphij.net>	https://www.delphij.net/
FreeBSD - The Power to Serve!		Live free or die
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