TWSD 762 - APV1800 will not start after updating to OS10.7.2.19 and performing "system fallback"

Review Request #886 — Created May 27, 2025 and submitted

Information
timlai
APV10
rel_apv_10_7, rel_apv_10_7_2, rel_apv_10_7_3
TWSD-762
Reviewers
jasonchang, timsu, weikai 
Root Cause: 

    We updated the GMP library to support secure NTP. 

    Since the x900 series CPU models are newer, this library works fine on x900 series.

    However, the x800 series uses older CPU models, which leads to an Illegal instruction (core dumped) 

    error when the initialization script runs the expr command. 

    As a result, the APV fails to initialize and enters a continuous reboot loop.


Solution:

    Recompile gmp library with --enable-fat flag to support all CPU models, 

    so that gmp library will select appropriate method to calculate based on CPU models.
    

  1. System upgrade from 10.4 to 10.7
    2. 

  2. System fallback to 10.4
    3. 



Verify there is no reboot issue.
jasonchang
jasonchang 
  1. Ship It!
  2. 
  
    
 
    

 
    
  


    
 
    
 
      

  

 
    


    

 
    

    3. 




  

 
















 



 

  

   




timlai




   

   

  

 



 

  


   

   

    
 Review request changed

    
   


  

  

  






 

  Status:
  

  Closed (submitted)

  
 







 


 










  

 









     

    

   

  

  

   
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