lywind commented on issue #12687:
URL: https://github.com/apache/nuttx/issues/12687#issuecomment-2230539705

   > > In fact, this is a Cortex-M7 MCU which is the ARM v7M-E architecture. 
And it does not have LOCKSTEP or RAR configurations. So I think it might not be 
the DCLS problem.
   > 
   > DCLS is configurable on Cortex-M7, I just suspect that the case they are 
facing is a issue on the lock-step core.
   > 
   > https://developer.arm.com/Processors/Cortex-M7
   > 
   > 
![20240716-160632](https://private-user-images.githubusercontent.com/758493/348996832-af875480-2af4-42f0-842c-4ac59047749c.jpg?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3MjExMjAwNDQsIm5iZiI6MTcyMTExOTc0NCwicGF0aCI6Ii83NTg0OTMvMzQ4OTk2ODMyLWFmODc1NDgwLTJhZjQtNDJmMC04NDJjLTRhYzU5MDQ3NzQ5Yy5qcGc_WC1BbXotQWxnb3JpdGhtPUFXUzQtSE1BQy1TSEEyNTYmWC1BbXotQ3JlZGVudGlhbD1BS0lBVkNPRFlMU0E1M1BRSzRaQSUyRjIwMjQwNzE2JTJGdXMtZWFzdC0xJTJGczMlMkZhd3M0X3JlcXVlc3QmWC1BbXotRGF0ZT0yMDI0MDcxNlQwODQ5MDRaJlgtQW16LUV4cGlyZXM9MzAwJlgtQW16LVNpZ25hdHVyZT1jM2QyYmVkN2E5ZTk5ZmM2MzM5OGI2ODFjOTg3OGIxMjVjZWE2MDllODhkZGE5YjY3MWIxNjRmMWZjZmQ3ZjYwJlgtQW16LVNpZ25lZEhlYWRlcnM9aG9zdCZhY3Rvcl9pZD0wJmtleV9pZD0wJnJlcG9faWQ9MCJ9.Lghuob-mBYL9rlpiELOk3eRSZrQH3zzyyH6v7yJBxQ8)
   
   Double checked and it's comfirmed that the LOCKSTEP and RAR are both 
enabled. And I'm wondering why the function unwind_find_entry(frame->pc) does 
not return NULL when frame->pc == 0xFFFFFFFC? It's obvious that 0xFFFFFFFC 
exceeds __exidx_end.


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]

Reply via email to