[I] [BUG] kernel mode gets stuck at the system call layer during backtrace to user mode [nuttx]

[via GitHub]

gneworld opened a new issue, #14467:
URL: https://github.com/apache/nuttx/issues/14467

   ### Description / Steps to reproduce the issue
   
   build system in protect mode or kernel mode
   
   1. make a breakpoint at function uart_read
   2. type any character in the nsh shell
   
   As you can see, the back trace process is stuck at dispatch_syscall function
   
   
![image](https://github.com/user-attachments/assets/baa47af6-6bb3-4083-8350-dcbeda48ca32)
   
   However, xtensa can handle this case correctly.
   
   
![image](https://github.com/user-attachments/assets/87c6b655-d1a0-4bd3-b724-7efae5d8d604)
   
   
   
   
   
   ### On which OS does this issue occur?
   
   [OS: Linux]
   
   ### What is the version of your OS?
   
   ubuntu 18.04 x64
   
   ### NuttX Version
   
   master
   
   ### Issue Architecture
   
   [Arch: arm]
   
   ### Issue Area
   
   [Area: Debugging]
   
   ### Verification
   
   - [X] I have verified before submitting the report.


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