@Brendan the reason why it fails on machines with 10 or more CPUs is because one is grep'ing for cpu1 which matches on CPU10, CPU11, CPU12, CPU13, CPU14, CPU15 on the 16 CPU machine. So the script is broken.
It looks like /proc/interrupts CPU* headed columns end with trailing spaces, so we could bodge around this using: grep -i -q "$cpu_num " /proc/interrupts note the trailing space after $cpu_num. But the /proc/interrupts format may change and remove those trailing spaces sometime in the future. So perhaps the line should be something like: cat /proc/interrupts | grep CPU | tr '\n' ' ' | grep -i -q $cpu_num ..just in case one day they remove the trailing spaces after the last CPU number. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/926136 Title: CPU1 on Dell PowerEdge M610, R715 and IBM X3500 M3 goes offline after exercising frequency governors To manage notifications about this bug go to: https://bugs.launchpad.net/checkbox/+bug/926136/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
