davids5 opened a new pull request, #11582: URL: https://github.com/apache/nuttx/pull/11582
## Summary See https://github.com/PX4/PX4-Autopilot/issues/22599 for additional details. If a TX DMA completion interrups a forground write. The TX DMA completion can start a dma_send and it will then followed by the forground write's dma_send stoping the,then in progress DMA. By atomicaly marking the tx dma busy, the forground write will not perform the dma_send, and will only enqueue the data. At the next TX dma completion any data pending in the tx queue will be sent ## Impact Without this change, the TX could hang. See https://github.com/PX4/PX4-Autopilot/issues/22599#issuecomment-1900324175 ## Testing px4_fmu-v6x and Mavlink -- 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
