On Wed, May 8, 2013 at 7:05 PM, Amit Mahadik <amitmahadik35@xxxxxxxxx> wrote: > Hello, > Following is the output of cat /proc/interrupts > > CPU0 CPU1 CPU2 > > 200: 9634 0 0 PCIe0-MSI eth0 > > I want to change the processor affinity of the above PCIe interrupt > > By executing command echo 2 > /proc/irq/200/smp_affinity I get the following > error > > sh: write error: Input/output error > > Even after changing the file permissions I have the same problem. AFAIK, even if you change that file's permission, actually it stays the same. So you need to switch into root or use sudo to change the affinity -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies