Hi, I have a Gigabit Dual P133 board with two CPUs. Everything worked. I installed Kernel 2.2.15 and compiled as SMP kernel. Now I have a problem with my cheap NE2000 PCI clone (10Mbit): (Another, also cheap, 100Mbit runs well) During bootup the card comes up ok: .... ne2k-pci.c: PCI NE2000 clone 'Compex RL2000' at I/O 0x6200, IRQ 9 eth0: Compex RL2000 found at 0x6200, IRQ 9, 00:80:48:C5:4E:01 .... I can see the card in ifconfig, everything seems fine. If I try a ping, I get the following in the log: Jun 30 22:23:09 elbueno kernel: eth0: Tx timed out, lost interrupt?. TSR=0x3, ISR=0x2, t=875 After more pings: Tx timed out, excess collisions. TSR=0xe, ISR=0x8, t=5000 I have read in the source code, that there seems to be a problem with some lock and the two CPUs. Do I have to buy better cards? Or can I twist something? And I would like to understand the meaning of the parameters TSR, ISR and t .. ;-) Any help appreciated!! --Orm - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.rutgers.edu