Re: Wrong file size, is it dangerous?

Richard B. Johnson (root@chaos.analogic.com)
Mon, 8 Mar 1999 13:34:02 -0500 (EST)


On Mon, 8 Mar 1999, Ricardo Galli Granada wrote:

> Hi all,
> I was suprised today. I found a mailbox in my 2.0.36 to be to
> big to be true
>
> star:/home/var/spool/mail # ls -l .ptocarmen.bad
> -rw------- 1 ptocarme root 3221220956 Mar 5 03:17 .ptocarmen.bad
>

This is a sparse file generated by some kind of error. A sparse file
could show a length equal to the maximum size allowed for a file, but
use only one allocation unit. You could create such a file by creating
one, doing an lseek to some large offset, writing one byte, then closing
it.

I would just delete it. The error probably occurred over NFS with the
file-size being received incorrectly. You probably have nothing wrong
with your local file-system.

Cheers,
Dick Johnson
***** FILE SYSTEM WAS MODIFIED *****
Penguin : Linux version 2.2.2 on an i686 machine (400.59 BogoMips).
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