Incorrect file size?

[Ivan Voras]

Rink Springer wrote:
> Hi,
> 
> On Fri, Jun 20, 2008 at 03:34:26PM +0300, Krassimir Slavchev wrote:
>> # ls -l
>> total 1239702
>> - -rw-------  1 vscan  vscan  4398199488512 Jun 20 15:18 auto-whitelist
>> - -rw-------  1 vscan  vscan             22 Jun 20 15:18 bayes.lock
>> - -rw-------  1 vscan  vscan         102168 Jun 20 15:18 bayes_journal
>> - -rw-------  1 vscan  vscan  1099639861248 Jun 20 15:18 bayes_seen
>> - -rw-------  1 vscan  vscan       21057536 Jun 20 15:18 bayes_toks
>>
>> but:
>> # df -h
>> Filesystem     Size    Used   Avail Capacity  Mounted on
>> /dev/ar0s1a     19G    3.9G     14G    22%    /
>> ...
>>
>> # du
>> 1239758 .
>>
>> # mount
>> /dev/ar0s1a on / (ufs, local)
>> ...
> 
> This is most likely due to the use of 'sparse files': sequential file
> data that consists of only zeros doesn't need have actual storage
> associated to it. This is quite normal in UNIX environments, and quite
> harmless.

Except that the file in question should be, judging by the filename, a
simple text file. I don't really see how a whitelist could grow to such
monstrous sizes :) Most likely it's a file system corruption - fsck
should be the first thing to try.

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