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From: Duane Hill <d.hill@yournetplus.com>
To: "Tamouh H." <hakmi@rogers.com>
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Cc: freebsd-questions@freebsd.org
Subject: Re: FreeBSD 6.1 rebooting all the time
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On Fri, 3 Nov 2006 22:49:38 -0500
  "Tamouh H." <hakmi@rogers.com> wrote:
>> 
>> I just installed 6.1 on a new laptop (Dell XPS M1210). 
>>It has 
>> a 2Ghz Intel Core2 Duo processor and two gigs ram. Every 
>>time 
>> it gets to the part in the bootup where you have to type 
>>a 
>> bunch of random junk it goes into a reboot. It's not an 
>> abrupt reboot. FreeBSD does show it is initiating the 
>>reboot. 
>> This is the error that is reported right before the 
>>reboot happens:
>> 
>>    panic: driver error: busdma dflt_lock called
>>    cpuid = 1
>>    Uptime: 12s
>>    Cannot dump. No dump device defined
>>    Automatic reboot in 15 seconds -b fe0: link state 
>>changed to DOWN
>> 
>> Does anyone know what I can do at this point?
>> _______________________________________________
> 
> google it up, plenty of resources, could be lots of 
>things. But first check your hardware:
> 
> http://www.google.ca/search?hl=en&q=busdma+dflt_lock&meta=
> 

Being I do not have anything important on the laptop and 
have a complete image of the HD prior to installing 
FreeBSD, I decided to try loading 7.0-CURRENT from the 
ISO. It was a success. I have now CVSUP'd the sources and 
have completed a buildworld and buildkernel without any 
issues. I've also installed X and have KDE running.

Thanks for your suggestion. I have looked at a number of 
things and will proceed down that path if I run into 
anything with 7.0.