Re: 0.5sec delay when ttyO0 is enabled

From: Mark Jackson
Date: Tue Sep 18 2012 - 07:34:37 EST


On 18/09/12 11:40, Mark Jackson wrote:
> I'm using a BeagleBone, and the linux kernel from Koen Kooi (https://github.com/koenkooi/linux.git).
>
> I have noticed there is a 0.5sec delay between OMAP UART0 being initialised and the console being
> enabled.

It is, of course, when the printk() messages are processed and dumped to the console.

If I boot with the "quiet" flag, the delay is magically gone.

Apologies for the noise.

--
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/