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Date:      Fri, 20 Sep 2002 14:33:24 -0500 (CDT)
From:      beemern <beemern@ksu.edu>
To:        <smp@freebsd.org>
Subject:   RE: For those with P4 SMP problems..
Message-ID:  <Pine.GSO.4.33L.0209201427360.23541-100000@unix2.cc.ksu.edu>

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ok, i edit'd as you indicated:

--snip--
  /* get the PHYSICAL APIC ID# */
        physical_cpu = CPU_TO_ID(logical_cpu);

        printf("CPU_TO_ID of logical_cpu: %d gives physical_cpu %d\n",
                logical_cpu,physical_cpu);

        /* XXX: override hack divemojo */
        physical_cpu = 11;
        printf("OVERRIDE physical_cpu to: %d\n",physical_cpu);

        /* calculate the vector */
        vector = (boot_addr >> 12) & 0xff;
--snip--

and i set physical_cpu to 1,2,3...,11 as you indicated

rebooting after make'ing and install'ing each kernel gave:

--snip--
avail memory = 517992448 (505852K bytes)
Programming 24 pins in IOAPIC #0
IOAPIC #0 intpin 2 -> irq 0
Programming 24 pins in IOAPIC #1
Programming 24 pins in IOAPIC #2
CPU_TO_ID of logical_cpu: 1 gives physical_cpu 6
OVERRIDE physical_cpu to: 3
WOOT WOOT WOOT
AP #1 (PHY# 6) failed!
panic y/n? [y] FreeBSD/SMP: Multiprocessor motherboard
 cpu0 (BSP): apic id:  0, version: 0x00050014, at 0xfee00000
 cpu1 (AP):  apic id:  6, version: 0x00000000, at 0xfee00000
 io0 (APIC): apic id:  2, version: 0x00178020, at 0xfec00000
 io1 (APIC): apic id:  3, version: 0x00178020, at 0xfec80000
 io2 (APIC): apic id:  4, version: 0x00178020, at 0xfec80400
Preloaded elf kernel "kernel" at 0xc03b2000.
--snip--

where the ONLY difference, is the printf of the OVERRIDE physical_cpu,
which was obviously different on each instance since i was changing it in
the code (and just wanted to verify it in dmesg)

basically, EACH kernel edit gave the "panic" msg as indicated in the
snippet
so... any other ideas to try at this point?

thanks
nathan


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