File system issues

[Dominic Fandrey]

On 27/10/2014 14:58, Ian Lepore wrote:
> On Mon, 2014-10-27 at 09:49 +0100, Ronald Klop wrote:
>> On Sat, 25 Oct 2014 22:52:51 +0200, Dominic Fandrey <kamikaze at bsdforen.de>  
>> wrote:
>>
>>> On 25/10/2014 20:36, Kurt Jaeger wrote:
>>>> Hi!
>>>>
>>>>> Two or 3 days ago, after an update to stable/10 my UFS file system
>>>>> started acting weird. I have freezes and files disappearing from the
>>>>> system.
>>>>>
>>>>> The first time that happened SU+J failed me.
>>>>
>>>> I always disable journaling
>>>
>>> I think that's just a symptom here. The issue is stuff mysteriously
>>> disappearing from my file system on a running system.
>>>
>>>
>>
>> Hi,
>>
>> Weird stuff. If you read the following mail thread there is a confirmed  
>> problem with fsck on ARM systems with disappearing files.
>> http://lists.freebsd.org/pipermail/freebsd-arm/2014-September/009168.html
>> It also states that the same problem does not occur on other platforms  
>> (and I can fsck my ARM systems usb-stick on a amd64 system successfully),  
>> but I thought it is worth mentioning.
>>
> 
> It seems unlikely to be related, but it would be easy to test:
> 
>   mdconfig -a -t malloc -s 64m
>   # assume that created unit 0
>   newfs /dev/md0
>   fsck -t ffs /dev/md0
> 
> If that reports errors, you've got the problem.  If it doesn't, it's
> some other problem.  So far the problem exposed by the sequence above
> happens only on one specific type of old low-end arm system; it hasn't
> yet been reproduced on even other arm systems, let alone other arches.

Thanks, I ran it and I didn't get any errors.

By now I decided to implement desperate measures. dump -0;newfs;restore

No more problems so far.

I didn't have the spare space to make a complete FS image. :( So whatever
the cause, it will remain undiscovered.

Regards

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