svn commit: r209371 - in head/sys: amd64/amd64 amd64/include conf dev/acpica i386/i386 i386/include isa kern pc98/cbus sys x86/isa x86/x86

Alexander Motin mav at
Mon Jun 21 20:08:40 UTC 2010

Kostik Belousov wrote:
> On Sun, Jun 20, 2010 at 09:33:29PM +0000, Alexander Motin wrote:
>> Author: mav
>> Date: Sun Jun 20 21:33:29 2010
>> New Revision: 209371
>> URL:
>> Log:
>>   Implement new event timers infrastructure. It provides unified APIs for
>>   writing event timer drivers, for choosing best possible drivers by machine
>>   independent code and for operating them to supply kernel with hardclock(),
>>   statclock() and profclock() events in unified fashion on various hardware.
> This broke QEMU for me. I cannot boot FreeBSD guest under QEMU anymore.
> QEMU (not FreeBSD kernel) panics with
> qemu: level-triggered hpet not supported
> message.

According to specification, it is not optional. No more cookies!

> Setting kern.eventtimer.timer1 to LAPIC or i8254, and timer2 to NONE
> does not help.

Try `hint.apic.0.clock=0` and send me verbose dmesg, I'll try to make
workaround if possible.

Alexander Motin

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