Hello, I've tried kernel 2.6.24-rc2 and I have a problem with the new option for setting up the cpufreq ondemand governor as default: a kernel panic happens early at boot time. If I boot first with performance governor and later change to ondemand, everything is fine (as usual). This seems related to the delayed_workqueue. The kernel panic message finishes by: EIP: [] wq_per_cpu+0x0/0x10 SS:ESP 0068:c191be58 Kernel panic - not syncing: Attempted to kill init! A picture of the whole message is available here: http://pieleric.free.fr/unorder/1162-ondemand-panic.jpg My computer is a x86 using speedstep-ich, and you can find the full .config leading to the panic attached. Does anyone has any idea was it going wrong? Thanks, Eric PS: I haven't tried 2.6.24-rc1.