FreeBSD 12.0-RC1 Released, Fixes Ryzen 2 Temperature Reporting
Written by Michael Larabel in BSD on 18 November 2018 at 12:02 AM EST. Add A Comment
BSD --
The first release candidate of the upcoming FreeBSD 12.0 operating system update is available for testing this weekend.

Over the earlier betas there is mostly fixes presented by FreeBSD 12.0-RC1, including a few prominent items. FreeBSD adds support for a few new keywords to RC, fixes a NUMA domain problem, deprecates the ctm utility, and other work.

Arguably most user-facing with this week's FreeBSD 12.0-RC1 release is updating the amdsmn/amdtemp drivers for attaching to Ryzen 2 host bridges. Additionally, the amdtemp driver has been fixed for correctly reporting the AMD Ryzen Threadripper 2990WX core temperature. The 2990WX temperature reporting is the same fix Linux initially needed to for a 27 degree offset to report the correct temperature. It's just taken FreeBSD longer to add Ryzen 2 / Threadripper 2 temperature bits even though they had beat the Linux kernel crew with the initial Zen CPU temperature reporting last year.

Download links and more details on FreeBSD 12.0-RC1 can be found via this mailing list post. FreeBSD 12.0 is slated to be officially released around mid-December.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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