Re: Old school SMP

[Michael <macallan%netbsd.org@localhost>]

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Hello,

On Dec 5, 2009, at 4:54 PM, John Klos wrote:

> > On Dec 5, 2009, at 3:44 PM, John Klos wrote:
> >
> > > I finally dug out my dual processor 200 MHz 604e card and tried to  
> > > boot an MP kernel. Not sure if anyone else cares, but what the heck:
> > > NetBSD 5.0_STABLE (GENERIC.MP) #0: Fri Dec  4 02:33:09 UTC 2009
> > >      builds%b8.netbsd.org@localhost:/home/builds/ab/netbsd-5/macppc/ 
> > > 200912040000Z-obj/home/builds/ab/netbsd-5/src/sys/arch/macppc/ 
> > > compile/GENERIC.MP
> > > total memory = 1024 MB
> > > avail memory = 988 MB
> > > found Grand Central PIC at f3000000
>
>
> Just a followup - it seems that an MP kernel won't boot properly on  
> a single CPU system:
>
>
> mainbus0 (root)
> cpu0 at mainbus0trap: pid 0.1 (system): kernel PGM trap @ 0x1e3118  
> (SRR1=0x81032)
> panic: trap
> Stopped in pid 0.1 (systt  netbsd:cpu_Debugger+0x10:       lwz      
> r0, r1, 0
> x14
> 0x0090b900: at panic+0x25c
> 0x0090b950: at trap+0x108
> 0x0090b9e0: kernel PGM trap by cpu_setup+0x50: srr1=0x81032
>            r1=0x90baa0 cr=0x33adbe53 xer=0xc000be6f ctr=0x1e0904
> 0x0090baa0: at cpu_setup+0x4c
> 0x0090bba0: at cpu_attach_common+0x78
> 0x0090bbc0: at cpuattach+0x2c
> 0x0090bbf0: at config_attach_loc+0x1a0
> 0x0090bc20: at mainbus_attach+0x68
> 0x0090bcf0: at config_attach_loc+0x1a0
> 0x0090bd20: at cpu_configure+0x158
> 0x0090bee0: at main+0x1bc
> 0x0090bf30: at 0x100098
> trap: pid 0.1 (system): kernel PGM trap @ 0x1ed554 (SRR1=0x80032)
> panic: trap
> Faulted in DDB; continuing...
> trap: pid 0.1 (system): kernel PGM trap @ 0x1ed554 (SRR1=0x80032)
> panic: trap
>
>
> I'll have to look into this a bit more...

Me too, that's not supposed to happen and I do have a bunch of  
comparable UP machines.
( and I don't remember the last time I tried to boot an SMP kernel on  
a UP mac )

have fun
Michael

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