Porting FreeBSD to Loongson 3A (RS780e)

[Paul Ambrose]

My box is not a laptop,  just like Fuloong 2F box, but much bigger,
with mini-ITX board,  and it is supposed to be shipped at till Aug.

2012/7/13, John Long <codeblue at inbox.lv>:
> On Thu, Jul 12, 2012 at 07:55:13PM +0200, Hans Ottevanger wrote:
>> On 07/12/12 18:57, John Long wrote:
>
>> Hi,
>>
>> I still have a Lemote Yeeloong netbook somewhere. It came with
>> Linux. It is a nice though quite simple system, based on a Loongson
>> 2F CPU. The main problem was the regular occurrence of system
>> freezes due to a CPU design problem. If I remember well the OpenBSD
>> guys also stumbled over this issue and I am not sure whether they
>> ever completely solved it.
>
> Hi,
>
> I do not know for sure, but I seem to remember there was a workaround in
> gcc
> to add a NOP in the right places (the error had to do with the chip's
> branch-prediction logic) and that fixed those boxes. I think Lemote also
> fixed the chip itself in later batches and this is not a problem in current
> production.
>
> I have been running OpenBSD-current on my Fuloong for a week including two
> complete rebuilds from source including kernel and userland (including
> pulling down complete source and ports trees twice from CVS). The box has
> performed beautifully and has exhibited 0 problems. It has been rebooted a
> lot for various installs but when it's up it has spent about 4 days running
> at 100% compiling code. And it has not been shut off for over a week. I
> think
> if rebuilding the OS from source and running it works it's a pretty sure
> bet
> the thing is solid. The guy who did the OpenBSD port for Fuloong (THANK YOU
> MIOD!!!) seems be saying he feels the 3A support will be accomplished
> without much difficulty, since much of the 2F support that is already there
> will work and the 3A uses a chipset already supported by OpenBSD.
>
> My point to the OP was I hope he doesn't target only 3A given there are 2F
> boxes out there and they are still being sold and they are really nice
> boxes. We all know, each OS has its plusses and minuses and the more
> support we get, everybody wins since all the BSD share code.
>
> I have no interest in a 3A laptop and I will let the early birds find the
> bugs and wait until they are fixed. If they come out with a Mini in the
> same
> format as the Fuloong and put a 3A in it, and the support is there, I
> wouldn't mind having one. Right now I wouldn't mind having an office full
> of
> the Fuloong 2F. It's the best box for the money I ever bought.
>
> --
>                        _
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