Re: [Devil-linux-develop] Kernel abort.

[Jaroslav K. <pe...@pe...>]

On Mon, 5 Apr 2004, Bruce Smith wrote:

> > > I'm pretty sure that PSCHED_JIFFIES was set in the .config file.
> > > It worked a couple days ago on a i686-SMP compile.  All I did was
> > > switch menuconfig to a i586-UP.
> > > 
> > > The error message kind of implies that PSCHED_JIFFIES isn't supported by
> > > i586?  I just set it to PSCHED_GETTIMEOFDAY and restarted the compile.
> > > We'll see if that works, in a few hours...
> > 
> > The PSCHED_CPU is supported only when CONFIG_X86_TSC is selected in 
> > kernel so it does not work with all 586 CPUs. But there's a condition 
> > catching this situation in scripts/configuration/prepare.config . If I 
> > switch kernel CPU from 686 to 586 then PSCHED_CPU is changed to 
> > PSCHED_JIFFIES automatically. Do you have updated all files from CVS?
> 
> I'm pretty sure that I was using JIFFIES on i686-SMP before I switched
> to i586-UP.  (FWIW)

The PSCHED_CPU should never be chosen automagically.

> What's the best option to select for a i686 compile?  PSCHED_CPU?

Yes, because it has the best accuracy and is fast.

						Jaroslav

-----
Jaroslav Kysela <pe...@pe...>