Using ACPI causes panics and crashes on Tyan 1832 tiger 100

[Nate Lawson]

Charlie Root wrote:
> I've been trying to install 7.0 beta2 on an old machine I have lying
> around. Running in safe mode and hint.apic.0.disabled=1 seems to be
> fine, but as soon as I try to get ACPI functinality, the system gets
> flaky. The motherboard in question is Tyan Tiger 100 D1832, from late
> 1990's.
> 
> Symptoms are sig 12 panics, sig 11 crashes and throttled interrupt storm
> on irq20. Memory tests good with memtest86 using several passes,
> exchanging processors in their slots makes no difference, neither does
> changing the drive the system is installed to plain ATA, plain SCSI or
> mix thereof. The panics are vn related somehow and systemcalls have eip
> set somewhere in outer space, much like the case Greg Lehey has as the
> last example of his BSD kernel debugging guide.

> Is there any hope on getting this system running on ACPI, or is the BIOS
> hosed for good? If I can supply any extra assistance or information I'm
> at your service and access to the box can be provided if needed.

Upgrade your BIOS to the last known version.  If it still has problems,
it's likely your system does not support acpi.  Just set
hint.acpi.0.disabled="1" in /boot/loader.conf and be done with it.

-- 
Nate