> That is, more of less, what "no buffer space" means.  The problem is that
> ICMP and UDP generally won't recover those packets.  The original post was
> about name service which tends to lose because of its UDP nature.
> 
not exactly. named were just the first service complaining. it was when
some more memory consuming process were started and (with SLOOOW 40MB
drive) it was sloowly swapping.

but - after everything finished network were still not working.
this is a problem