Re: [PATCH] repairing rtcache killer

[kuznet@xxxxxxxxxxxxx]

Hello!

>  No correct RCU patches are not applied but even before the RCU pathes we 
>  didn't see dst cache overflow during DoS if the routing table was fully 
>  loaded and we used hash chain limit patch. 

Sure. :-) Robert, did not we discover a week ago that the reason of rcu
stalls is rt_run_flush() which runs only when routes change? :-)

By the way, to refresh your memory, months ago there was another reason
for overflows. It was fixed by setting sane value to ip_rt_gc_min_interval.
RCU showed on surface after this.

Alexey