FreeBSD hangs on boot after kernel upgrade to 9.0-R

[Alexander Motin]

Hi.

On 01/21/12 21:34, mato wrote:
> I've used freebsd-update to upgrade from 8.2-R to 9.0-R and all looked nice
> until the first reboot.  Now my FreeBSD always hangs midway through the boot
> process and the last message output is:
> "uhub3:<Intel EHCI root HUB..."
> I've tried safe boot option but that does not help at all.
> When I disable USB support in BIOS the last message before hang is:
> "ata1: reset tp1 mask=03 ostat0=00 ostat1=00
> (aprobe0:ata0:0:1:0): SIGNATURE: eb14"
>
> Any idea what might be wrong and how to fix it please ?

The last line is the ATAPI device detection. What ATA controller do you 
have there? On one Core2Duo-class Supermicro system alike hang was 
caused by ITE PATA controller. In that case it was workarounded by 
adding hint.ata.0.mode="PIO4" to /oot/loader.conf. You may try just set 
it from loader prompt with `set` command.

-- 
Alexander Motin