On Feb 4, Jukka Marin wrote
> Yes, all processes which don't access the disk(s?) run OK and I can still
> type on the console, but the system can't start login.

Hum, so I don't undertsand why the kernel didn't start ddb immedialtly
after ctrl-alt-esc ...

> 
> > Could it be possible that interrupts stays blocked (i.e. a missing splx()
> > somewhere) ?
> 
> Wouldn't that stop the mouse pointer, all processes etc?  

No. In netbsd, there is an 'interrupt mask' which allows a part of code
to block only some kind of interrupts (disks, network, tty, ...). So
I/O interrupts may be blocked (and thus all disks access will block) without
blocking interrupts from the serial port.
(Yes, I should have say: some interuupts :)

However, could these hangs be related to a pccons/pcvt issues ?
Are there pccons users who noticed these kind of hang ?

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
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