Re: 2.4.5-ac6 and 2.4.4-ac11 boot fails with APIC timer

Re: 2.4.5-ac6 and 2.4.4-ac11 boot fails with APIC timer

[Mikael Pettersson]

On Sat, 16 Jun 2001 11:27:53 +0900, <root@norma.kjist.ac.kr> wrote:

>> The message on the screen 
>>
>> calibrating APIC timer ..... 
>> .... CPU clock speed is 1395.7390MHz 
>> ... host bus clock speed is 0.0000 MHz 
>> cpu: 0, clocks: 0, slic: 0 
>>
>> Then nothing. I had to push the reset button at this point. 
>> ACPI and APM were disabled from the kernel config. 
>>
>> This boot failure messages was obtained from 
>> Pentium4 board GB-450(?) from Intel, NVIDIA M64 video. 
>> Sound Blaster 128 PCI. Netgear PNIC fast ethernet.... 
>>   
>> The same kernel was able to boot up the other Pentium 4 board from 
>> Gigabyte flawlessly. So, it depends on the motherboard manufacturers. 
>>
>> Regards to all. 
>>
>> G. Hugh Song 
>
>Replying to my own message:
>
>When I chose "No" to "APIC support on uniprocessors", the above error
>message disappeared and the machine booted up OK with 2.4.5-ac13.
>...
>I think that APIC thing was defined by Intel themselves.
>They should have implemented it the best.  How much penalty do I pay 
>by not choosing "yes" to "APIC support on uniprocessors"?

>From the part of the dmesg log you quoted I conclude that
(a) the NMI watchdog didn't kill you (good), but
(b) the calibration loop detects a 0MHz bus speed and then fails
    to produce the "CPU0:<T0: ...>" line, which means it hangs in
    arch/i386/kernel/apic.c:setup_APIC_timer(), probably because
    apic_read(APIC_TMCCT) always returns zero.

Anyway, you should disable CONFIG_X86_UP_APIC on your P4 for now.
You won't lose any performance due to this, only the possibility to
use the NMI watchdog.

/Mikael

Re: 2.4.5-ac6 and 2.4.4-ac11 boot fails with APIC timer

[root]

> The message on the screen 
>
> calibrating APIC timer ..... 
> .... CPU clock speed is 1395.7390MHz 
> ... host bus clock speed is 0.0000 MHz 
> cpu: 0, clocks: 0, slic: 0 
>
> Then nothing. I had to push the reset button at this point. 
> ACPI and APM were disabled from the kernel config. 
>
> This boot failure messages was obtained from 
> Pentium4 board GB-450(?) from Intel, NVIDIA M64 video. 
> Sound Blaster 128 PCI. Netgear PNIC fast ethernet.... 
>   
> The same kernel was able to boot up the other Pentium 4 board from 
> Gigabyte flawlessly. So, it depends on the motherboard manufacturers. 
>
> Regards to all. 
>
> G. Hugh Song 

Replying to my own message:

When I chose "No" to "APIC support on uniprocessors", the above error
message disappeared and the machine booted up OK with 2.4.5-ac13.
Please refer to the following diff:

diff .config.old .config
63,65c63
< CONFIG_X86_UP_APIC=y
< # CONFIG_X86_UP_IOAPIC is not set
< CONFIG_X86_LOCAL_APIC=y
---
> # CONFIG_X86_UP_APIC is not set


I think that APIC thing was defined by Intel themselves.
They should have implemented it the best.  How much penalty do I pay 
by not choosing "yes" to "APIC support on uniprocessors"?

Best regards,

G. Hugh Song

2.4.5-ac6 and 2.4.4-ac11 boot fails with APIC timer

[G. Hugh Song]

The message on the screen 


calibrating APIC timer .....
.... CPU clock speed is 1395.7390MHz
... host bus clock speed is 0.0000 MHz
cpu: 0, clocks: 0, slic: 0


Then nothing.  I had to push the reset button at this point.
ACPI and APM were disabled from the kernel config.

This boot failure messages was obtained from 
Pentium4 board GB-450(?) from Intel, NVIDIA M64 video.
Sound Blaster 128 PCI.  Netgear PNIC fast ethernet....
  
The same kernel was able to boot up the other Pentium 4 board from 
Gigabyte flawlessly. So, it depends on the motherboard manufacturers.

Regards to all.

G. Hugh Song