From: Shawn Guo <shawn.guo@linaro.org>
To: Subodh Nijsure <snijsure@grid-net.com>
Cc: paulmck@linux.vnet.ibm.com, linux-mtd@lists.infradead.org,
Linux Kernel Maling List <linux-kernel@vger.kernel.org>,
linux-arm-kernel@lists.infradead.org,
Artem Bityutskiy <dedekind1@gmail.com>
Subject: Re: RCU warning during UBI file system mount
Date: Wed, 5 Sep 2012 11:51:10 +0800 [thread overview]
Message-ID: <20120905035108.GV2362@S2101-09.ap.freescale.net> (raw)
In-Reply-To: <50462190.7090702@grid-net.com>
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
prev parent reply other threads:[~2012-09-05 3:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5042EC5D.1010207@grid-net.com>
2012-09-04 7:46 ` RCU warning during UBI file system mount Artem Bityutskiy
2012-09-04 14:48 ` Paul E. McKenney
2012-09-04 15:43 ` Subodh Nijsure
2012-09-04 19:54 ` Paul E. McKenney
2012-09-05 3:51 ` Shawn Guo [this message]
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