Messages in this thread | | | Date | Mon, 16 Dec 2002 09:42:43 -0500 | From | "Patrick R. McManus" <> | Subject | Re: Dual Xeon w/ HT: Kernel can't find second CPU |
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> > Sent: Friday, December 06, 2002 6:57 PM > > To: linux-kernel@vger.kernel.org > > Subject: Re: Dual Xeon w/ HT: Kernel can't find second CPU
I have a similar (but different) problem that I was hoping for help with.
I can't build a kernel for my dual xeon e7500 board, with hyperthreading enabled, that sees 4 logical processors. I can boot the redhat 8 kernel and that sees 4, but my build of 2.4.20-ac2 gets me 'warning sibling not found' messages and just 2 cpus.
It is built for P4 and has SMP on. Is there anything else I should have to do? acpismp=force doesn't help (not that it should on 2.4.20 from what I read.)
[..] CPU: Trace cache: 12K uops, L1 D cache: 8K CPU: L2 cache: 512K CPU: Physical Processor ID: 0 Intel machine check reporting enabled on CPU#0. CPU: After generic, caps: 3febfbff 00000000 00000000 00000000 CPU: Common caps: 3febfbff 00000000 00000000 00000000 CPU0: Intel(R) XEON(TM) CPU 2.40GHz stepping 04 per-CPU timeslice cutoff: 1462.99 usecs. task migration cache decay timeout: 10 msecs. enabled ExtINT on CPU#0 ESR value before enabling vector: 00000000 ESR value after enabling vector: 00000000 Booting processor 1/2 eip 2000 Initializing CPU#1 masked ExtINT on CPU#1 ESR value before enabling vector: 00000000 ESR value after enabling vector: 00000000 Calibrating delay loop... 4797.23 BogoMIPS CPU: Trace cache: 12K uops, L1 D cache: 8K CPU: L2 cache: 512K CPU: Physical Processor ID: 3 Intel machine check reporting enabled on CPU#1. CPU: After generic, caps: 3febfbff 00000000 00000000 00000000 CPU: Common caps: 3febfbff 00000000 00000000 00000000 CPU1: Intel(R) XEON(TM) CPU 2.40GHz stepping 04 Total of 2 processors activated (9581.36 BogoMIPS). WARNING: No sibling found for CPU 0. WARNING: No sibling found for CPU 1. [...]
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