4 GB USB flash disk with FAT ok, with ext3 corrupted files

Miernik public at miernik.name
Sat Jun 16 19:01:02 UTC 2007

Miernik <public at miernik.name> wrote:
> And trying to write any more files gives "No space left on device" message,
> while only 8% of the device is used:
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/sda1              4120356    305988   3605064   8% /mnt/sda1

And the device really has the 4 GB:

debian105:~# dd if=/dev/zero of=/dev/sda
dd: writing to `/dev/sda': No space left on device
8376322+0 records in
8376321+0 records out
4288676352 bytes (4.3 GB) copied, 4145.71 seconds, 1.0 MB/s

And no error was encountered while doing this dd write.
Neither in dmesg, nor in kern.log. Everything was fine.

Reading also fine:

debian105:~# dd if=/dev/sda of=/dev/null
8376321+0 records in
8376321+0 records out
4288676352 bytes (4.3 GB) copied, 4128.19 seconds, 1.0 MB/s

No strange messages in any of the logs while doing that.

Also I consider it unlikely that these sticks are bad, because the same
happens on both ot them.

I bought them on these Internet auctions:


As you can see the first one was a multi-item fixed price sale of 20 of
such sticks, and many people bought these, some of whom already given
positive comments. The seller has 100% of positive comments, many of
which from sale of the same type of USB sticks. I would contact the
seller if only one of the sticks was bad - well, that could happen, but
would he give me two different bad sticks? Both where bought from the
same seller.


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