some issues with dual G4 1Gig machines

some issues with dual G4 1Gig machines

[Kevin B. Hendricks]

Hi,

I have been using a modified version of Ben's kernel (modified to
recognize the 7455's and built to support smp (but NOT to distribute
irqs to all processors).

Basically this machine has been rock steady and I have gone days (weeks)
without rebooting it into Mac OSX (I realize that is no a long time but
I just got the machine in early Feb).

However the last time I tried to shut it down I received the following
error message:

/sbin/shutdown -h now
...
The system is halted.

smp_call_function on cpu 0: other cpus not responding (0)

Serial port locked ON by debugger!

wait_on_irq, CPU 0:
irq: 1 [0 1]
bh: 0 [0 0]

And it hangs here waiting and it never shuts down the machine.

Are there any known races or problems in the shutdown and halting
sequence for smp machines?  My guess is this sequence is not overly
tested!

Also I seem to error messages about duplicate ticks (an smp issue?) and
my clock loses something like 5 minutes a day (basically running
unloaded most of the time).

Are either of these known issues?

Ideas welcome?

Are all the required changes in your latest tree and should I just grab
it.

Kevin


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Re: some issues with dual G4 1Gig machines

[Kaoru Fukui]

On  8 Mar, Kevin B. Hendricks wrote:
>
> Serial port locked ON by debugger!

I get same problem on dual g4/450 with Ben's tree today.

Kaoru


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Re: some issues with dual G4 1Gig machines

[Kaoru Fukui]

On  8 Mar, Kevin B. Hendricks wrote:

>
> Serial port locked ON by debugger!
>

I found this one in arch/ppc/xmon/start.c.

I got also this message from 2.4.19-pre4 Ben's tree and linuxppc_2_4.

Kaoru


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Re: some issues with dual G4 1Gig machines

[Kaoru Fukui]

> On March 26, 2002 12:01, you wrote:
>> On  8 Mar, Kevin B. Hendricks wrote:

>> > Serial port locked ON by debugger!
>>
>> I found this one in arch/ppc/xmon/start.c.
>>
>> I got also this message from 2.4.19-pre4 Ben's tree and linuxppc_2_4.

 it's stable problem for me.
The kernel(2.4.19pre4 Ben's and linuxppc_2_4) doesn't boot with message on g4
dual.

Kaoru


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