badblocks blocksize setting

[Marius Reiner]

Hi,
not really a reiserfs issue:
When following the FAQ everything is fine, I set blocksize zu 4096 as
debugreiserfs told me, and don't get any bad blocks.
Nevertheless I'm a bit concerned about the ones, badblocks reports, when
being invoked without the -b option. How does this happen?
Which docs are there on this topic apart from badblocks manpage/sourcecode?
Or should I just ignore them?
Thanks in advance
Marius