Re: [PATCH] Disable scheduler debugging

From: David Lang
Date: Sun Jun 06 2004 - 18:03:21 EST


On Sun, 6 Jun 2004, Jeff Garzik wrote:


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.

neither of these are nearly as bad as the crypto code, it takes a HUGE kernel log to get any info from before that if you enable all the encryption modes.

David Lang


--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan
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