Re: problems with volunteer preempt patch WAS: little NPTL SCHED_FIFO test program

[Ingo Molnar <mingo@elte.hu>]

* martin rumori <lists@rumori.de> wrote:

> ACPI RSDP .....
> .....
> ACPI build 1 zone list
> Detected Processor...
> Memory ...
> ...
> Checking if processor honors the WP bit even in supervisor mode... ok.
> 
> ---
> that's it.  freezes for 1-2 seconds after this last message, then
> reboots.  tried to write down these contents of the screen, as far as
> i could recognize them during the short period of time.
> 
> i am wondering especially about the ACPI messages, as ACPI is
> completely switched off now.

is ACPI switched off in the .config too?

> second (minor) issue: when having enabled CONFIG_PREEMPT_VOLUNTARY(=y)
> but not CONFIG_PREEMPT_TIMING(=n), i get the following when linking:
> 
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> arch/i386/kernel/built-in.o(.text+0x2da1): In function `do_nmi':
> : undefined reference to `__trace'

> maybe latency.o is not included when linking without
> CONFIG_PREEMPT_TIMING?

right. We dont want to link it in so i've added a NOP define for
__trace() to sched.h. This fix will show up in -P6.

	Ingo