Problems with AMD64 and 8 GB RAM?

Greg 'groggy' Lehey grog at
Wed Mar 30 15:09:56 PST 2005

On Wednesday, 30 March 2005 at 16:04:44 -0700, Scott Long wrote:
> 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.

As I said above (and trimmed for convenience), this problem occurs on
5.4-PRERELEASE as of yesterday morning.  The dmesg shows that too.

>> As I described, it doesn't appear to be the drivers.
> I don't see how you proved or disproved this.

Shall I resend the original message?  It seems independent of any
particular driver.  That's not proof, of course, but I didn't claim it

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