Hello, I am having troubles to set up network interfaces on our machine to properly use SMP Linux features. There are two Broadcom Nextreme II ethernet NICs onboard a 2x dual-core CPU machine. My kernel has SMP and Message-Signaled Interrupts (MSI) enabled. When I boot with MSI enabled, I can see in /proc/interrupts that each of the NICs got a unique interrupt assigned. But all traffic generated to the 1st NIC goes to the CPU#0, other CPUs show 0 processed interrupts in the /proc/interrupts. I tried to assign the interrupt to a specific CPU (single bit in smp_affinity, tried each of the 4 CPU cores), with the same results; althought smp_affinity said e.g. 4, everything was processed by CPU#0 When the machine booted with "pci=nomsi" kernel parameter, the NICs were assigned a shared IO-APIC interrupt, but the intr processing was properly distributed among CPU cores as requested by the affinity_mask. What am I doing wrong ? Thanks for any advice, -Svata - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html