From: Rik van Riel <riel@redhat.com>
To: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: linux-next list <linux-next@vger.kernel.org>,
youquan.song@intel.com, rafael.j.wysocki@intel.com,
paulmck@linux.vnet.ibm.com
Subject: Re: [PATCH linux-next] cpuidle: fix a suspicious RCU usage in menu governor
Date: Tue, 20 Nov 2012 11:04:09 -0500 [thread overview]
Message-ID: <50ABA9F9.1020105@redhat.com> (raw)
In-Reply-To: <1353404893.3694.42.camel@ThinkPad-T5421.cn.ibm.com>
On 11/20/2012 04:48 AM, Li Zhong wrote:
> I saw this suspicious RCU usage on the next tree of 11/15
>
> [ 67.123404] ===============================
> [ 67.123413] [ INFO: suspicious RCU usage. ]
> [ 67.123423] 3.7.0-rc5-next-20121115-dirty #1 Not tainted
> [ 67.123434] -------------------------------
> [ 67.123444] include/trace/events/timer.h:186 suspicious rcu_dereference_check() usage!
> hrtimer_start was added in 198fd638 and ae515197. The patch below tries
> to use RCU_NONIDLE around it to avoid the above report.
>
> Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
--
All rights reversed
next prev parent reply other threads:[~2012-11-20 16:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-20 9:48 [PATCH linux-next] cpuidle: fix a suspicious RCU usage in menu governor Li Zhong
2012-11-20 15:34 ` Paul E. McKenney
2012-11-20 16:04 ` Rik van Riel [this message]
-- strict thread matches above, loose matches on Subject: below --
2012-11-22 1:45 Li Zhong
2012-11-22 23:12 ` Rafael J. Wysocki
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