Re: Fatal trap 18

[ Available lists | Index of freebsd-stable | Month of Nov 2010 | Week of 9 Nov 2010 | Raw email | View thread | Wrap long lines | Reply | Tag ]
From
Dan Allen <danallen46@airwired.net>
Date
9 Nov 2010 15:59:34
Subject
Re: Fatal trap 18
Message-ID
817835F0-91C1-4945-917A-9C582C4FDFF6@airwired.net

In reply to
Replies
Referenced by

[ Hide this part ]
 
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?

Dan




Elapsed time: 0.240 seconds