Sorry, I've been unresponsive. I'll carve out some time to look at this.
On 04/08/2011 03:40 AM, Fiedler Roman wrote:
>> -----Ursprüngliche Nachricht-----
>> Von: Christian Kujau [mailto:[email protected]]
>> Gesendet: Mittwoch, 6. April 2011 18:45
>> An: Fiedler Roman
>> Cc: [email protected]
>> Betreff: Re: AW: [Jfs-discussion] jfs issues with power failure, fast reboot
>> sequences and disk/fs unrelated kernel freezes
>>
>> On Wed, 6 Apr 2011 at 17:50, Fiedler Roman wrote:
>>> No ubuntu comes with
>>> ii jfsutils 1.1.12-2.1 utilities for managing the JFS filesystem
>>
>> Well, can you upgrade then? jfsutils has received quite a few bugfixes
>> since 1.1.12. Not sure if your symptoms are covered, but it's worth a
>> try..?
>
> I finally found a reproducer, that triggers the fault with approx ~3
reboots on my machine. The normal fsck 1.1.12 does not report any
errors, but inode file with "stale NFS lock" is added to /lost+found.
Running the 1.1.15 fsck on this already 1.1.12 checked fs in normal mode
does not repair the fault. Both fix it when running them in forced mode.
>
> I also managed to reproduce it after replacing fsck.jfs system-wide
with 1.1.15 and managed to capture an example on a 20MB test image.
Following two commands report the fault before mounting it when using a
loop device.
> if ! fsck.jfs "${loopDev}" || ! jfs_fsck -n "${loopDev}"; then
> echo "Fsck failed!">&2
> exit 1
> fi
>
> Since the first fsck works, the volume can be mounted. Result:
>
> ./usr:
> total 0
> drwx------ 3 root root 8 2011-04-08 07:34 .
> drwxr-xr-x 3 root root 8 2011-04-08 07:34 ..
> ?????????? ? ? ? ? ? bin
>
> I will try to reproduce it also without loop device, to see if this
affects the outcome. Should I send you (or someone else interested in
debugging) the disk image off-list? I have also upstart-based example
that triggers test reboots via sysrequest, should be suitable to
reproduce it on your systems,
Please send me the disk image. Are you actively doing anything on the
affected file system when you trigger the reboot?
> Roman
>
>> Christian.
>> --
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