Mbuf Clusters on 4.8

[John Bäckstrand]

> > From this it sounds as it is a problem that should
be
> > fixed, but it
> > obviously isnt in 4.8. Is this behaviour now
considered
> > acceptable? And if
> > so, doesnt this make FreeBSD extremely easy to kill
> > using a simple
> > DOS-attack? Is this "fixed" in any way on 5.1?
>
> Afaik, this bug was recently fixed in both of HEAD
and STABLE.
>
> Eugene

Yes, you could well be right. The fix about not
checking return values from m_copy() when receiving
broadcast messages I think, sure seems to fit what is
happening to me. I disconnected my three machines from
the rest of the LAN, and tried exhausting mbuf clusters
again. This time, it didnt hang, and no rl0 watchdog
messages either. I am ugprading the box now and will
try a new kernel.

---
John Bäckstrand