Description of problem: On a dual Xeon 2.4GHz machine, with HT turned on, only 3 CPUs are found. Errors in dmesg show symptoms (see attachment). Version-Release number of selected component (if applicable): Linux 2.6.15-1.1831_FC4smp #1 SMP Tue Feb 7 13:48:31 EST 2006 i686 i686 GNU/Linux How reproducible: Steps to Reproduce: 1. Install Kernel 2.6.15-1.1831_FC4smp 2. Reboot 3. Check dmesg log Actual results: Only 3 CPUs detected Expected results: 4 CPUs detected Additional info:
Created attachment 125424 [details] dmesg Boot Log and /proc/cpuinfo
Is this still a problem on the 2.6.16 based kernels ? If so, can you attach your dmesg ?
No, the problem only presented itself on kernel 2.6.15-1.1831_FC4smp. All subsequent updates have worked as expected.