On Tue, Feb 14, 2012 at 10:00:52AM +0100, Adriaan wrote: > A year ago, with a 4.9 snapshot the acpi stuff on that box was > configured, and both CPUs detected.
For some reason the probe for apm fails on your system in 4.9, so acpi was allowed to attach. In later releases, it seems the probe for apm succeeds, which is prefered for older systems. Unfortunately for you the BIOS vendor didn't include MP tables, so the decision to use apm over acpi means the kernel is now unaware of additional processors. Check for BIOS knobs? or.. as previously suggested: > > 'disable apm' in config(8) or UKC. > > > > -Bryan. > > > So how would you explain that? ;) > > Adriaan Hmm, what were you unable to understand about that? -Bryan.
