Problems with AMD64 and 8 GB RAM?

[Scott Long]

Greg 'groggy' Lehey wrote:
> On Wednesday, 30 March 2005 at 15:30:37 -0700, Scott Long wrote:
> 
>>Greg 'groggy' Lehey wrote:
>>
>>>I've recently acquired an AMD64 box ...
>>>
>>>What's unstable?  ... The amd64 5.4-PRERELEASE kernel just
>>>hangs/freezes.
>>
>>5.3-RELEASE has a lot of problems with >4GB due to busdma issues.
>>Those should no longer be an issue in RELENG_5, including 5.4-PRE.
> 
> 
> They appear to be.
> 

I don't understand what you mean here.

> 
>>>I realize that this isn't enough to diagnose the problem.  The reason
>>>for this message now is to ask:
>>>
>>>3.  Where should I look next?
>>
>>You'll need to dig in and provide some more details, I guess.
> 
> 
> Yes, my guess too.
> 
> 
>>I have an HDAMA dual Opteron system that behaves fine now with 8GB
>>of RAM, so your problem might lie with particular hardware and/or
>>drivers.
> 
> 
> As I described, it doesn't appear to be the drivers.

I don't see how you proved or disproved this.

Scott