On 17 Jan, Mike Tancsa wrote:> On 1/17/2018 8:43 AM, Pete French wrote:
>>
>> Are you running the latest STABLE ? There were some patches for Ryzen
>> which went in I belive, and might affect te stability. Specificly the
>> chnages to stop it locking up when executing code in the top page ?
>
> Hi,
> I was testing with RELENG_11 as of 2 days ago. The fix seems to be there
>
> # sysctl -A hw.lower_amd64_sharedpage
> hw.lower_amd64_sharedpage: 1
>
> Would love to find a class of motherboard that pushes its "You dont
need
> to dork around with any BIOS settings. It just works. Oh, and we have a
> hardware watchdog too".... ipmi would be stellar.
The shared page change fixed the random lockup and silent reboot problem
for me. I've got a 1700X eight core CPU and a Gigabyte X370 Gaming 5. I
did have to RMA my CPU (it was an early one) because it had the problem
with random segfaults that seemed to be triggered by process migration
between CPU cores. I still haven't switched over to using it for
package builds because I see more random fallout than on my older
package builder. I'm not blaming the hardware for that at this point
because I see a lot of the same issues on my older machine, but less
frequently.
One thing to watch (though it should be less critical with a six core
CPU) is VRM cooling. I removed the stupid plastic shroud over the VRM
sink on my motherboard so that it gets some more airflow.