John Baldwin wrote:
[ Bcc'd to various arch mailing lists ]
Please test the patch at http://www.FreeBSD.org/~jhb/patches/smp.patch
You can apply it to a sys/ check out by using patch -p6. It moves
the setting of mp_maxid into a separate function (cpu_mp_setmaxid())
that is called before loader tunables so that UMA and others can use
it. cpu_mp_probe() is now called at SI_SUB_CPU / SI_ORDER_SECOND like
it used to be. This is necessay to re-enable the ACPI module on i386.
I have tested it on i386 but not on other archs. Please be sure to
test that a normal SMP kernel works as well as booting an SMP kernel
with 'kern.smp.disabled'. cpu_mp_probe() is no longer called if SMP
is disabled in the loader using the tunable. Thanks.
What all do I need to adjust on my end, other patches? I took 'device
acpi' out of my kernel, but if I try to boot with the acpi module
loaded, the kernel still uses MPTable for interrupts:
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 5.1-CURRENT #0: Wed Nov 19 08:55:07 CST 2003
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/MAXKERNEL_DEBUG
Preloaded elf kernel "/boot/kernel/kernel" at 0xc07d8000.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc07d8250.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Pentium II/Pentium II Xeon/Celeron (350.80-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x652 Stepping = 2
Features=0x183fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR>
real memory = 402587648 (383 MB)
avail memory = 385548288 (367 MB)
MPTable: <INTEL 440GX >
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
ioapic0: Assuming intbase of 0
ioapic0 <Version 1.1> irqs 0-23 on motherboard
Pentium Pro MTRR support enabled
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <TYANCP TYANTBLE> on motherboard
ACPI-0168: *** Error: Could not transition to ACPI mode.
acpi0: Could not enable ACPI: AE_NO_HARDWARE_RESPONSE
device_probe_and_attach: acpi0 attach returned 6
Pete...
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