Heavy fs corruption with 9.0-RELEASE
nonesuch at longcount.org
Tue Mar 6 03:00:09 UTC 2012
On Mar 5, 2012, at 5:21 PM, Xin Li <delphij at delphij.net> wrote:
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> On 03/05/12 14:12, Arnaud Lacombe wrote:
>> 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
> 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.
How are you fsck'ng the 9.0 ufs ? Do you have a 9.0 fsck , tunefs , and mount ? 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 ?
> - --
> Xin LI <delphij at delphij.net> https://www.delphij.net/
> FreeBSD - The Power to Serve! Live free or die
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Mark saad | mark.saad at longcount.org
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