Date: Mon, 02 Dec 1996 11:34:59 +0100 From: Terje Normann Marthinussen <Terje.N.Marthinussen@cc.uit.no> To: Steve Passe <smp@csn.net> Cc: freebsd-smp@freebsd.org Subject: Re: SMP-current status Message-ID: <199612021035.LAA07875@slibo.cc.uit.no> In-Reply-To: Your message of "Sun, 01 Dec 1996 14:33:40 MET." <199612012133.OAA15619@clem.systemsix.com>
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>smells like a PCI/EISA/level translation problem,
>I really am growing to *hate* the MP spec!!!
>
>-
>from the output:
>>ahc0 <Adaptec aic7870 SCSI host adapter> rev 3 int a irq 7 on pci1:13
> ^^^^^
>-
>from your mptable output:
>
>I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID INT#
> ExtINT active-hi edge 19 0 14 0
> INT active-hi edge 19 1 14 1
> ...
> INT conforms level 19 7 14 7
> ^^^^^^^^ ^^^^^ ^^ ^
>---
>without getting into the issues here (different boards do different things
>and its all a very ugly $#%^&*^*$% mess)
Yes, I noticed a couple of days after I first sent in my mptable output
and you commented that nothing seemed to be on the XPRESS bus, I looked
on the mptable output again, and it stroke me that nothing seemed to be
on the PCI bus either, even though there should be at least a 3COM ethernet
card and two SCSI controllers.
>
>looking at your previous mail I'm confused:
>
>>FreeBSD 3.0-SMP #0: Sun Dec 1 18:25:33 MET 1996
>> terjem@quattro:/usr/src/sys/compile/netserver
>>FreeBSD/SMP: Multiprocessor motherboard
>> cpu0 (BSP): apic id: 0, version: 0x00030010
>> cpu1 (AP): apic id: 2, version: 0x00030010
>> cpu2 (AP): apic id: 3, version: 0x00030010
>> cpu3 (AP): apic id: 4, version: 0x00030010
>> io0 (APIC): apic id: 14, version: 0x000f0011
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
>the above line should ONLY come out of an APIC_IO enabled kernel, yet you
>inply this one isn't when you go on to say:
Ai... My error. Cut&Paste from the wrong boot, should have been:
FreeBSD 3.0-SMP #0: Sun Dec 1 17:30:48 MET 1996
terjem@quattro:/usr/src/sys/compile/netserver
FreeBSD/SMP: Multiprocessor motherboard
cpu0 (BSP): apic id: 0, version: 0x00030010
cpu1 (AP): apic id: 2, version: 0x00030010
cpu2 (AP): apic id: 3, version: 0x00030010
cpu3 (AP): apic id: 4, version: 0x00030010
Warning: APIC I/O disabled
>what is important to establish here is:
>
> can you run a 2 CPU system with APIC_IO OFF ("options APIC_IO" NOT in config)?
> my guess is you can...
>
>
> can you run a 2 CPU system with APIC_IO ON ("options APIC_IO" IS in config)?
> my guess is you *can't*...
>
You are guessing right.
>the safest way to test 2 CPU version for now is to add line to mp_machdep.c:
>
> /* start each AP */
>+ mp_naps = 2;
> for ( x = mp_naps; x >= 1; --x ) {
>
A bit wrong there.
Should be mp_naps = 1;
Only 1 application processor in a 2 CPU system.
It's the way I first booted 2 CPUs.
Doesn't help though.
Terje Marthinussen
terjem@cc.uit.no
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