DragonFly users List (threaded) for 2004-12
Re: Crazy clock
:> :The problem is that the BIOS might mess with the timer directly like my
:> :notebook does. We can't detect changes from System Management Mode.
:> Ugh. You're right. SMM bypasses everything. Somebody needs to shoot
:Apart from the shooting bit, is there something I could do to debug the
No. I think if that user-timer-1 option works you should just stick with
Obviously I should add support for other timebases, despite the fact that
most of them are broken. I think FreeBSD did get that one right though
their support infrastructure is ridiculously complex for the purpose.
e.g. the ACPI timer (which is an unlatched ripple counter on many chipsets
and thus cannot simply be read once to get a stable value), and the LAPIC