Brian Buchanan wrote:
I'm having problems getting SMP to work on a Tyan S4520 Thunder GCHE
motherboard with 4x 1.9GHz Xeon processors:
Programming 16 pins in IOAPIC #0
IOAPIC #0 intpin 2 -> irq 0
Programming 16 pins in IOAPIC #1
Programming 16 pins in IOAPIC #2
AP #1 (PHY# 2) failed!
panic y/n? [y] AP #2 (PHY# 4) failed!
panic y/n? [y] AP #3 (PHY# 6) failed!
panic y/n? [y]
This is under FreeBSD 4.7-RELEASE. I also tried a recent -STABLE build
and 5.0-RELEASE, with the same results.
I made similar problem known here about middle-January. John Baldwin
told me there is standing problem with APICs on 7500SW2 motherboards.
Possible solution he suggested was:
You can try to change bus_clock from 66000000 to 533000000 in sys/i386/i386/mpapic.c and see if that helps.
This didn't help me (I couldn't even pass "panic (y/n)" with "no"). See if it helps you.
What really concerns me now is 5.0-RELEASE with all the SMPng can't cope with the problem.
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