From: Lokesh Vutla <lokeshvutla@ti.com>
To: Paolo Pisati <p.pisati@gmail.com>
Cc: linux-omap <linux-omap@vger.kernel.org>,
Kevin Hilman <khilman@linaro.org>, Rajendra Nayak <rnayak@ti.com>
Subject: Re: 3.12: omap4: cpuidle: solid hangs at boot
Date: Fri, 15 Nov 2013 14:41:00 +0530 [thread overview]
Message-ID: <5285E524.50202@ti.com> (raw)
In-Reply-To: <20131114110445.GB4594@luxor.wired.org>
+ Kevin
Hi Paolo,
On Thursday 14 November 2013 04:34 PM, Paolo Pisati wrote:
> Vanilla 3.12 multi_v7_defconfig + cpu_idle result in a solid hang on my pandaes
> board: has anyone experienced it before? is cpu_idle safe on omap4?
I have also seen the same issue on my panda es board.
On further investigation, it seemed to work on 3.11 and broken between 3.12-rc1 and 3.12-rc2
because of the following patch:
7835027 ARM: OMAP4: cpuidle: fix: call cpu_cluster_pm_exit conditionally
(http://www.mail-archive.com/linux-omap@vger.kernel.org/msg94655.html)
But by applying a recent patch from Grygorii Strashko https://patchwork.kernel.org/patch/3084521/
seems to make it work.
You can give a try by applying the given patch.
Kevin, please correct me if I am wrong.
Thanks and regards,
Lokesh
>
> same kernel boots fine on omap3 and some other arm boards fwiw.
> if you want to reproduce it:
>
> config: http://people.canonical.com/~ppisati/3.12_armv7multi_cpuidle/config
>
> zImage: http://people.canonical.com/~ppisati/3.12_armv7multi_cpuidle/zImage
>
> boot log: http://paste.ubuntu.com/6415293/
>
prev parent reply other threads:[~2013-11-15 9:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-14 11:04 3.12: omap4: cpuidle: solid hangs at boot Paolo Pisati
2013-11-15 9:11 ` Lokesh Vutla [this message]
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