Hi, I would like to add additional information to this report.
I have another Linux distribution on another disk partitions on the same computer and there I have the same problem, the same error hapens the same way. The other Linux distribution is a Kubuntu version 11.10 on a Linux 3.0.0-12-generic kernel. The error message there states: [ 136.148968] option: option_instat_callback: error -2 [ 138.161058] irq17: nobody cared (try booting with the "irqpoll" option) [ 138.161140] handlers: [ 138.161152] [<f85a66e0>] ath_isr [ 138.161153] Disabling IRQ #17 [ 167.637858] option: option_instat_callback: error -2 Thanks. Fernando.