On Sun, 2007-11-11 at 20:10 +0100, Eric Piel wrote: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: [<c012aa60>] 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?
Does it work if you compile speedstep-ich as a module?
If you load it, ondemand governor should still be set up automatically.
If this works, could it be that the kernel does not like that
queue_delayed_work_on is called that early?