Re: netconsole and a serial one

From: Jeff Moyer
Date: Mon Sep 22 2008 - 09:20:17 EST


"Jon Smirl" <jonsmirl@xxxxxxxxx> writes:

> I have both netconsole and a serial console setup on an embedded
> system. This is what I need for the boot process.
>
> After I'm booted I want to turn off printk() output to the serial
> console but keep it going to netconsole.
> I've been googling for an hour, how do I do this?
>
> I need to turn off the serial output after boot because serial
> printk() disables interrupts for up to 1ms which is enough to cause me
> to lose a lot of other interrupts.

There's no way (that I know of) to do this presently. However, I think
David Howells has been working on a patch that reduces the amount of
time printk spends with IRQs disabled.

David?

Cheers,

Jeff
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