From: David Lang <david.lang@digitalinsight.com>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Ingo Molnar <mingo@elte.hu>, Andi Kleen <ak@suse.de>,
akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Disable scheduler debugging
Date: Sun, 6 Jun 2004 15:57:12 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.60.0406061554370.11624@dlang.diginsite.com> (raw)
In-Reply-To: <40C3452B.5010500@pobox.com>
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
prev parent reply other threads:[~2004-06-06 23:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-06 1:32 Andi Kleen
2004-06-06 5:53 ` Ingo Molnar
2004-06-06 16:24 ` Jeff Garzik
2004-06-06 21:46 ` Zwane Mwaikambo
2004-06-06 21:55 ` Jeff Garzik
2004-06-06 21:55 ` Randy.Dunlap
2004-06-06 22:57 ` David Lang [this message]
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