66AK2G12: Not able to get SPI interrupt in 66AK2G12(DSP)chip in multi thread environment

Part Number:66AK2G12

Hi  

We are working on implementing a communication between 66AK2G12(DSP)  and microcontroller using SPI  communication .

So when  66AK2G12  is working on  single thread we are able to get SPI interrupt , but in multi thread environment , specially when  audio stream  is transferring  using Multi-Channel Audio Serial Port (McASP) peripheral  , sometime we are not able to get SPI interrupt .   

We are using "processor_sdk_audio_1_02_03_01"  and PDK version 1.0.6 

It would be helpful if some one can point me the issue .