November 6, 2022 9:05 AM, "Damien Le Moal" <damien.lemoal@xxxxxxxxxxxxxxxxxx> wrote: > Can you try current mainline 6.1-rc kernel ? Not going to debug 5.15. > Debugging should be done on the latest kernel and any bug fix backported. OK. I have a bootable kernel v6.1-rc3, but no rootfs yet. I load it via tftp. I built it from github.com/torvalds/linux using OpenWrt toolchain. Bootlog is attached. At 17 seconds I connect the DAS. >> The same router works perfectly when I connect a laptop HDD. > > You mean an external single HDD connected with an eSATA port ? Yes, to show that the hardware is not defective. > What kernel version is running on that older Linksys box ? 5.10 >> [--- Areca connected ---] >> <6>[88761.966331] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl F300) >> <6>[88761.975472] ata1.15: Port Multiplier 1.2, 0x197b:0x0325 r193, 8 ports, feat 0xf/0x1f > > This one seems OK with the PHY detection and it links up. Let me know the > kernel version and we can see what changed between the older kernel and > 5.15. But you should still try latest 6.1-rc if possible. I don't think there is a change in kernel. It's just a diferent driver in use: ahci-mvebu vs. sata-mv. BTW, is sata-mv compatible with this hardware? It won't auto-load instead of ahci-mvebu if ahci-mvebu is missing. Thank you for your reply. Marius Dinu