Hello, I'm using a v5.4 kernel now, with backported 'can: mcp25xxfd: initial commit'. I did focus up to now to CAN recv performance, but now I face another issue. I have errors transmitting to CAN. It's unstable. I need to collect more details, and it is now about focus number 1. I managed to decrease the urgency for my project by inserting a delay in the most busy transmitter. Any ideas what to look for? Kind regards, Kurt