Re: ZONE_NORMAL memory exhausted by 4000 TCP sockets

2006/11/6, Eric Dumazet [off-list ref]:

Slab:           293952 kB
So 292 MB used by slab for 2000 sessions.

Expect 600 MB used by slab for 4000 sessions.

So your precious LOWMEM is not gone at all. It *IS* used by SLAB.

You forgot to send
cat /proc/slabinfo

sorry I didn't make myself clear enough. 2000 sessions means 4000
sockets, 2000 for the server, 2000 for the client.