For me the problem is still there. If I remove the files generated by "hal-disable-polling --device /dev/scd0" (see kernel bug tracker), cpu usage goes up again, with kernel 2.6.28-14 as well as 2.6.30.2.
For me the problem is still there. If I remove the files generated by "hal-disable- polling --device /dev/scd0" (see kernel bug tracker), cpu usage goes up again, with kernel 2.6.28-14 as well as 2.6.30.2.