This behavior occurred in a previous installation of Slackware64 14.1 and, after I botched that one, the same thing is happening in a new, clean installation. This behavior is sporadic, I guess once or twice out of a dozen boots. I have put off asking about this because, after I get the login prompt, the system behaves properly; i.e., no emergency!

The boot process starts normally, then I get a string (100+) of lines that read:

"USB 1-2: new high-speed USB device number NN using ehci-pci"

NN usually starts around 17, next line jumps to 18, and so forth up to NN=127; then it starts over with NN=3. Eventually, these lines become interspersed with normal boot message lines; then the strange repeating lines cease and the rest of the boot process is normal.

FWIW: Here are the six lines immediately before the first odd line. This happened during my most recent boot; I do not know whether it happens at the same place every time. All six lines are about nouveau.

1) nouveau [ drm] allocated 1440x900 fb: 0x9000, bo ffff88011a705800

2) fbcom: nouveaufb (fb0) is primary device

3) Console: switching to color frame buffer device 180x56

4) nouveau 0000:00:0d.0: nouveaufb frame buffer device

5) nouveau 0000:00:0d.0: registered panic notifier

6) [drm] Initialized nouveau 1.1.1 20120801 for 0000:00:0d.0 on minor 0

I have not a clue as to what the cause of this behavior is nor how o fix it - if it even needs to be fixed. The only apparent harm is the slightly longer time to boot.

BTW: This is my first post to LQ using my new Slackware64 14.1-multilib setup.
It's been slow, but I'm getting there. :)

Thanks in advance for any information (about the probable cause) or suggestions (about how to fix or not to try to fix).

paulb2

This has happened to me a couple of times when booting recently. Could be a kernel bug, but my hardware has been acting up in other ways of late, so I suspect my hardware is on the way out and I just put it down to that.

@GazL: Thanks for your quick reply. As far as I can tell, all my hardware has been behaving normally, unless this is the first sign of something being wrong.

paulb2

Just a troubleshooting technique ...

I don't know if this boot message is about a USB controller or a USB device plugged into the computer, but if you have USB devices plugged in while the system boots you could unplug those during boot (if possible) and see if the messages tracks with a specific device plugged in.