[erlang-questions] AMD Ryzen anyone?

[Iblis Lin]

forgot to CC the list.


On 01/03/2018 01:21 PM, Iblis Lin wrote:
> well, purchasing decision is up to you, but I want to share my personal
> experience:
>
> I will vote -100 for the Ryzen build. For me, the term "Ryzen" means
> malicious trolling.
>
> It wasted my time and mental efforts.
>
> I will show you my journal:
>
>   - I set up the Ryzen box in 2017/5. Mine is 1700 (8 cores 16 threads).
>
>   - I install Arch Linux, ran CouchDB on it... and found the machine
> crash and reboot regularly in an interval of 2-3 days.
>
>   - I also tried to build mainline kernel, (at that moment, it's 4.12
> IIRC), not work , still crashing or freezing.
>
>   - Another test: disabling all deamon, the box can be alive over a week.
>
>   - Changing memory module in 2017/6, not work.
>
>   - 2017/9 I RMA-ed it.
>
>   - After RMA, it still keeps crashing, hard freezing, soft freezing...
> within 3-6 hr if I run something on it.
>
>     the kill-ryzen script DOES kill my box, even it's the new CPU back
> from RMA.
>
>     The *improvement* is the crashing interval shrunk. Thank you AMD.
>
>   - 2017/10, I changed my OS from Arch to Ubuntu. not work.
>
>
> On 01/03/2018 06:46 AM, Adam Rutkowski wrote:
>> Hey all,
>>
>> I'm thinking of building a Ryzen machine, mainly for Erlang development. There's this rather obscure bug with some Ryzen processors on Linux/BSD [1] and I'm worried I might be getting a unit from the faulty batch; I have no means of verifying this before purchasing from my local suppliers. I'm wondering if I should I expect any issues with Erlang VM doing the multi-core heavy lifting. 
>>
>> Cheers
>>
>> [1]: https://www.phoronix.com/scan.php?page=news_item&px=Ryzen-Segv-Response
>>
>> A.
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-- 
Iblis Lin
林峻頤
GitHub: https://github.com/iblis17


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