November 15, 2022 5:02 AM, "Damien Le Moal" <damien.lemoal@xxxxxxxxxxxxxxxxxx> wrote: > So something is going on at the hardware level here. The register value is > not stable... You could try playing with the sleep interval (unsigned long > interval = params[0];) and duration (unsigned long duration = params[1];) > to see if anything changes. Especially try reducing and increasing interval. > -- > Damien Le Moal > Western Digital Research What are the defaults? Are these defaults the same for all sata/ahci controllers? How much can I increase them? Will anything break? What could be the cause of this? sata cable? Power source? BTW, while doing the testing, I saw the same error with the laptop HDD. I disconnected the cable and then reconnected it, and the second time it was detected OK. Unfortunately, I wasn't capturing serial messages and I couldn't make it happen again. Marius Dinu
