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For IMX6DQCE : Errata :ERR003731:An imprecise external abort, received while the  processor enters WFI, may cause a processor deadlock

Question asked by Manyam Personal on Jul 17, 2014
Latest reply on Jul 21, 2014 by igorpadykov

Hi, the work around provided is too high level, could any one please provide more information and also if any fix is provided it will be a great helpful for me.

 

Work Around is mentioned as protecting the MMU with correct settings - what does it mean, and in ARM Architecture reference manual, it has been mentioned that in order to avoid dead lock, DSB operation is needed before entering the WFI. What does DSB Operation means??

 

 

Thanks in advance.

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