Date: Fri, 20 Sep 2002 15:48:29 -0400 (EDT) From: John Baldwin <jhb@FreeBSD.org> To: beemern <beemern@ksu.edu> Cc: smp@freebsd.org Subject: RE: For those with P4 SMP problems.. Message-ID: <XFMail.20020920154829.jhb@FreeBSD.org> In-Reply-To: <Pine.GSO.4.33L.0209201427360.23541-100000@unix2.cc.ksu.edu>
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On 20-Sep-2002 beemern wrote:
>
> 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?
Grrr. Hmm, might need to do the override in CPU_TO_ID() instead
(overriding for logical cpu 1) so it is consistent everywhere. I'm
curious, if you boot up linux what apic id does it give for the
second CPU?
--
John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
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