linux-kernel - Re: [PATCH] scripts/bootgraph.pl: ignore times until the clock is running

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Date:	Thu, 18 Mar 2010 11:24:40 -0700
From:	Arjan van de Ven <arjan@...ux.intel.com>
To:	Aaro Koskinen <aaro.koskinen@...ia.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] scripts/bootgraph.pl: ignore times until the clock is
 running

On 3/18/2010 10:49, Aaro Koskinen wrote:
> The clock used for printk.time=1 does not necessarily start running
> from zero. On such platforms the bootgraph does not work properly as
> the calculated boottime will be too long.

can we fix the platform to be smarter instead ? I'd think that's needed anyway for various
timers etc to actually work well

>
> To correct this, the patch modifies the script to accept only non-zero
> start times. This ensures the report contains entries only from the
> period when the clock was running.
>
> Signed-off-by: Aaro Koskinen<aaro.koskinen@...ia.com>

nothing wrong with the patch itself... just sad that it's needed to work around such bugs ;(

Acked-by: Arjan van de Ven <arjan@...ux.intel.com>
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