Re: [PATCH] Disable scheduler debugging

[Jeff Garzik]

Ingo Molnar wrote:
> * Andi Kleen <ak@xxxxxxx> wrote:
>
>
> > The domain scheduler spews out a lot of information at boot up, but it
> > looks mostly redundant because it's just a transformation of what is
> > in /proc/cpuinfo anyways. Also it is well tested now. Disable it.
>
>
> i'd rather keep it some more, there are still open issues and if there's
> a boot failure or early crash it makes it easier for us to see the
> actual domain setup. Also, the messages are KERN_DEBUG.


Unfortunately there are just, flat-out, way too many kernel messages at 
boot-up.  Making them KERN_DEBUG doesn't solve the fact that SMP boxes 
often overflow the printk buffer before you boot up to a useful userland 
that can record the dmesg.

The IO-APIC code is a _major_ offender in this area, but the CPU code is 
right up there as well.

	Jeff

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/