On Tue, 30 Nov 2004, Joseph Koshy wrote: > Strange problem. > > On an IBM xSeries 335 machine with TWO P4 HTT cpus (mptable, dmesg output > enclosed) FreeBSD -CURRENT will sometimes detect both the physical CPUs > and will sometimes detect only one. > > FreeBSD 5.3 reliably detects the 2 physical / 4 logical CPUs that are present. > > Any suggestions on how to debug this? dmesg + mptable + acpidump output in both situations would be a good start. Sounds like one of the physical CPUs might be flakey; you see 2 CPUs since you see the solitary core's hyperthreaded pair. -- Doug White | FreeBSD: The Power to Serve dwhite_at_gumbysoft.com | www.FreeBSD.orgReceived on Wed Dec 01 2004 - 23:25:59 UTC
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