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Re: Corrupted FS every 50 checks



Henrique de Moraes Holschuh wrote:
> On Sat, 14 Aug 2010, Merciadri Luca wrote:
>   
>> always on the same: /dev/sdc5. Well, this is where I have all my docs,
>> my university stuff, and this is even more annoying. I could do backups,
>>     
>
> I sure hope you *DID* extensive backups.  Often.  And stored some of
> them for permanent archival.
>   
:)
>> but I can't understand why this filesystem is problematic, because I
>>     
>
> The typical answer is: "because it is always getting corrupted again".
>   
But why again?
>> always get the same errors. This time, it was mainly *things like error
>> filesystem Inode has EXTENTS_FL flag set, but not too many.*
>>     
>
> This could mean you've managed to messing with an ext4 filesystem as if
> it were ext3.  That won't corrupt file data, but can cause lots of other
> problems, and could cause data loss if you manage to confuse the kernel
> and the fsck tools enough.  With some luck, it will end up in lost+found
> after the proper fsck.
>
> I sure hope that's what is happening.
>   
Well, I never modify things like the fs structure type, such as ext3 or
ext4. Where could I have modified this? And why does it often happen to
the same files?
>> *2) Should I think about buying another hdd? I tried with the hdd life
>>     
>
> You should do a 24H memtest86 marathon on that box.
I did it many months ago for another issue, and it went okay.
>  And you should make
> sure you're *always* using that filesystem as ext4, since you apparently
> have a part of it using ext4 features.
>
> If it is a hardware problem, it is a strange one... it should be messing
> with the entire disk, not just a set of files in the same partition. It
> can't be bad magnetic media, as that causes sector read errors, not
> corruption.
>
> I hope this answer helps you.  I won't be able to help you further on this.
> Maybe someone else can (or has a better idea of what the problem could be).
>   
Thanks.

-- 
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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