On 3 Nov 2010, at 2:40 AM, Andriy Gapon wrote: > This problem seems to happen only on SMP systems that for some reason run as > UP. > E.g. because ACPI and/or APIC are disabled. > Or some other BIOS configuration. > But I am not sure what exactly is the case here.
Okay, I have been researching my UP/SMP problem. In the past, before recent "Intel topology" changes, on my Toshiba Satellite U205 machine if I used a kernel with ACPI support, only 1 logical CPU showed up in FreeBSD 8.1-STABLE. When I booted into Windows XP on the same machine, with the same BIOS settings, I would see 2 logical CPUs. If I built a FreeBSD kernel WITHOUT ACPI support and left the BIOS settings as they were above, I then would see 2 logical CPUs. Now with these recent FreeBSD changes I cannot get the machine to EVER recognize a 2nd logical processor, but if I boot into Windows XP I still see two CPUs, so we still have a bug in this new Intel topology code. This laptop has an Intel Core Duo T2400 @ 1.83 GHz chip. (The BIOS is set to provide multiple logical CPUs in all cases and Andriy, I am using your patched kernel.) Is there anything else I can do to help you understand this system config? What next? Dan _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
