On Sun, 2021-06-13 at 07:09 +0800, Ed Greshko wrote:
On 13/06/2021 06:57, Ed Greshko wrote:
But, does your plot show a difference?
Speaking of your plot.....
Don't you think the time between
sys-devices-pci0000:00-0000:00:1a.0-usb1-1\x2d1-1\x2d1.6- 1\x2d1.6.2.device and dev-disk-by\x2dpath- pci\x2d0000:00:14.0\x2dusb\x2d0:3:1.0\x2dscsi\x2d0:0:0:1.device
worth looking into?
Of course. That's precisely the issue I'm concerned about. I don't see what's causing it. My working hypothesis is that it's somehow related to the fact that the external dock supports two drives in a BTRFS RAID1 configuration and that the kernel is verifying them when it starts up, even though the drives are not being mounted (they have an automount unit but nothing in /etc/fstab).
Why it would delay the rest of the system startup while this is happening is something I don't understand. The delay is very visible (I get three dots on a blank screen while it's happening).
poc