SIze of a file shows 124 GB while available size is less than 16 GB

SIze of a file shows 124 GB while available size is less than 16 GB

[manty kuma]

Hi All,

I am working with bionic c(Android).

There is a file that I generated which is showing 124 GB(ls -l) size.
Whereas the actual available memory on the partition is less than 16 GB.

I am trying to debug but unable to reach any conclusion. What could be the
possible reason? Has someone seen like this before?

Posting it here as I think it has got something to do with linux internals.

I am guessing fseek's offset somewhere has gone wrong. But any directions
would be very helpful.

Regards,
Manty
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SIze of a file shows 124 GB while available size is less than 16 GB

[anupam.kapoor at gmail.com]

>>>>> [2015-01-21T14:37:39+0530]: "manty kuma" (manty-kuma):
,----[ manty-kuma ]
| There is a file that I generated which is showing 124 GB(ls -l) size.
| Whereas the actual available memory on the partition is less than 16 GB.
`----
sparse file probably, for example, create a 10T file:

,----[ ]
| anupam at fatcat quick-hacks % dd if=/dev/zero of=a-large-sparse-file bs=1024k count=0 seek=10485760
| 0+0 records in
| 0+0 records out
| 0 bytes (0 B) copied, 5.8346e-05 s, 0.0 kB/s
| anupam at fatcat quick-hacks % ls -lh a-large-sparse-file
| -rw-r--r-- 1 anupam users 10T Jan 21 14:49 a-large-sparse-file
| anupam at fatcat quick-hacks % 
`----


---
thanks
anupam