cwespressif opened a new pull request, #11340: URL: https://github.com/apache/nuttx/pull/11340
## Summary Tasks use PSRAM as stack can do SPI flash read/write/erase/map/unmap. The root cause is as following: 1. When operating SPI flash, cache is also disable, then software can't access PSRAM by data cache. 2. SPI flash read/write/erase functions have instruction like stack-pop and stack-push which may use stack buffer which is PSRAM space or load/store temp variables which locate in PSRAM space too. 3. Once operation in step 2 triggers, CPU will trigger exception. So related SPI flash functions should be sent and run in tasks which use SRAM as task stack. ## Impact ## Testing -- 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: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
