rcu self-detected stall messages on OMAP3, 4 boards
From: paul@pwsan.com (Paul Walmsley)
Date: 2012-09-20 07:56:06
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Hi, On Wed, 19 Sep 2012, Paul E. McKenney wrote:
On Thu, Sep 13, 2012 at 06:52:10PM +0000, Paul Walmsley wrote:quoted
On Wed, 12 Sep 2012, Paul E. McKenney wrote:quoted
quoted
Subodh Nijsure (also CCed) reported something that might be similar on ARM, and also reported that setting the following got rid of the stalls: CONFIG_CPU_IDLE=y CONFIG_CPU_IDLE_GOV_LADDER=y CONFIG_CPU_IDLE_GOV_MENU=y At which point he was happy, which was good, but which also left the underlying problem unsolved. Do these affect your system? If so, do they cause a different ARM idle loop to be executed?Will give this a try. What board was Subodh using?Any news on trying the above settings?
Sorry, haven't had the chance to try it yet due to the impending merge window opening. Once things settle down I'll give it a try -- or maybe someone else can test it in the meantime. - Paul