Latest working kernel version: 2.6.28-rc7 Earliest failing kernel version: Distribution: Hardware Environment: x86 Software Environment: fedora10 OS Problem Description: When I work at the console, those warns were output normal(about every five minutes). When I stop all the work, it also occur. [ 4970.068994] atkbd.c: Spurious NAK on isa0060/serio0. Some program might be trying access hardware directly. ... [ 5117.666236] atkbd.c: Spurious NAK on isa0060/serio0. Some program might be trying access hardware directly.