In message <[EMAIL PROTECTED]>, Ville-Pertti Keinonen writ

>> The easiest way to detect this DOS is probably to keep track of the
>>      namecache entries
>>      -----------------
>>      live vnodes
>> ratio, and enforce an upper limit on it.
>That seems like a reasonable approach.
>If you want to include the other attack I mentioned (I just tried it,
>got up to > 160000 vnodes), then you have to exclude vnodes that are
>only live because of v_cache_src entries from the count.

It should probably only count vnodes in "actual" use.

>BTW: You still haven't committed the v_id patch I sent you in May.  Is
>there any specific reason for this?

I seem to remember we stalled on some detail which wouldn't or
couldn't work was it NFS ?

Poul-Henning Kamp             FreeBSD coreteam member
[EMAIL PROTECTED]               "Real hackers run -current on their laptop."
FreeBSD -- It will take a long time before progress goes too far!

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