Hi everybody, When I start more than about 3 domU's the following messages are logged in dom0: Jun 6 18:30:03 thebe kernel: printk: 18 messages suppressed. Jun 6 18:30:03 thebe kernel: xen_net: Memory squeeze in netback driver. Jun 6 18:30:03 thebe last message repeated 9 times This progressively gets worse when I start more and more domU's, up until the point some or all domU's lose their network connectivety. When I google on the error message, a few pages turn up, but no real sollutions. I'll try to describe my setup in detail: the hardware: AMD Opteron 144 4 GB ram Dual Broadcom Corporation NetXtreme BCM5704 Gigabit Ethernet controllers It's Aplus hardware from supermicro. the software: Suse Linux 10.1, default kernel: 2.6.16.13-4-xen Xen version 3.0.2_09656-4 (abuild@suse.de) (gcc version 4.1.0 (SUSE Linux)) Tue May 2 01:39:27 UTC 2006 I've got two bridges: xenbr0 and xenbr1: bridge name bridge id STP enabled interfaces xenbr0 8000.feffffffffff no vif0.0 peth0 vif1.0 (all vifX.0) xenbr1 8000.feffffffffff no vif0.1 peth1 vif1.1 (all vifX.1) So basically I've got two seperate lans, available to all domains. No NAT. One lan is an internal vlan, the other lan is the public internet. Each domain runs an iptables firewall, including domain0. The firewall is your basic run-of-the-mill iptables firewall, rules are matching eth0 and eth1, no special modules are used. domain0's got plenty of free ram when the memory squeeze happens: thebe:~ # free -m total used free shared buffers cached Mem: 1506 646 859 0 290 101 -/+ buffers/cache: 255 1250 Swap: 4102 0 4102 -- Erik Hensema (erik@hensema.net) --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-unsubscribe@opensuse.org For additional commands, e-mail: opensuse-help@opensuse.org