Fatal trap 18

Dan Allen danallen46 at airwired.net
Tue Nov 9 15:59:34 UTC 2010

On 9 Nov 2010, at 8:24 AM, Andriy Gapon wrote:

> on 09/11/2010 17:22 Dan Allen said the following:
>> On 9 Nov 2010, at 8:11 AM, Andriy Gapon wrote:
>>> /boot/loader.conf contents
>> This might be the smoking gun!
>> cat loader.conf:
>> 	hint.apic.0.disabled="1"
> Yes, it is.
> So why do you have it and what happens if you remove it?

Well, there is good news and bad news.

The good news is that if I remove this hint the machine boots with 2 CPUs.

The bad news is that I get lots of:

  CPU0: local APIC error 0x40
  CPU1: local APIC error 0x40

messages and the machine is very unresponsive.  Every keystroke has a second or two of delay.  It really is unusable.

If memory serves I had to turn off APIC in order to see both CPUs at some time in the past.  However, at some time in the past I had both CPUs and did not have the severe unresponsiveness that I get without this hint.

So with APIC I get both CPUs but an unusable config.  Without APIC I have one CPU but things are lively.

What next?


More information about the freebsd-stable mailing list