Re: RCU warning during UBI file system mount

From: Shawn Guo
Date: Tue Sep 04 2012 - 23:51:46 EST


On Tue, Sep 04, 2012 at 08:43:12AM -0700, Subodh Nijsure wrote:
> MX28 is ARM device. I removed following from my config and these
> warnings went away.
>
> CONFIG_CPU_IDLE=y
> CONFIG_CPU_IDLE_GOV_LADDER=y
> CONFIG_CPU_IDLE_GOV_MENU=y
>
There is no cpuidle implemented on imx28. I do not understand how
these options influence the result here.

> I have attached the kernel configuration file I used.
>
> It doesn't affect specific hw I am working with as device is not
> required to enter idle mode.
> I am Cc-ing linux-arm folks, in case someone on arm platform
> requires CPU idele &, RCU to work.
>
I just ran a case with CONFIG_CPU_IDLE and RCU support and failed
to reproduce the warning. Is this something specific to gpmi-nand
or we can see it with any other imx28 drivers/cases? Sorry, I do
not have NAND flash set up on my imx28 board.

--
Regards,
Shawn
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