ip_queue problem (and ip_conntrack DoS)
Mon, 10 Jul 2000 10:22:05 +0200
On Mon, Jul 10, 2000 at 04:18:48PM +1000, James Morris wrote:
> If you get a chance, let me know if you still get the problem with a
> non-SMP build.
No, at least I cannot reproduce it even under extremely heavy conditions
(including case when ip_conntrack is active).
Seems that it is in SMP locking code, or in APIC emulation - later on
I'll try to reproduce it on real SMP box....
But what is very strange... I still get "No buffer space available"
error (on read), but queue is not overflowed. This error appears only
when I ACCEPT packets (though error rate is very low - so far 8 errors
on over 4.5M packets).