>>> Suspend to RAM resume hangs on a tickless (NO_HZ) kernel
>>>
http://bugzilla.kernel.org/show_bug.cgi?id=9275
>>> Kernel: 2.6.23
>>> This is HP notebook nc6320 T2400 945GM
>> No response from developers
> ..
>
> I *still* get very slow resume-from-RAM quite often here
> (new in 2.6.22 kernel, wasn't there in early 2.6.23-rc*).