A little while ago, the Linux-headed sleuths over at Phoronix came across an obscure bug in Ryzen CPUs that triggered segmentation faults ("segfaults," which cause application crashes) in a compiler-specific workload. The bug was confirmed by AMD's engineers, who described it as a "performance marginality problem" and indicated that owners of affected CPUs could reach out to AMD Customer Care. The engineers also noted that Ryzen Threadripper and Epyc processors are unaffected. Phoronix's Michael Larabel took AMD up on its replacement offer and recently received a revised CPU that's apparently clear of the bug.
Larabel performed his due diligence and got to torturing the revised Ryzen 7 1800X under the same conditions that triggered the compilation segfaults. He's happy to report that he came across no issues whatsoever, whether related to compilation or not. The system used for testing was the same for old and revised processors alike. That also seems to clear any suspicion that the bug could somehow also be related to the motherboard or another component.
In his article, Larabel goes on to note that judging from his observations, Ryzen CPUs manufactured before week 25 (mid-June) of 2017 appear to be the ones affected by the problem. The bug is reasonably difficult to trigger, but users that want to rest easy can reach out to AMD Customer Care and get a replacement part.
|Aerocool's Project 7 P7-C1 Pro case reviewed||6|
|Google Project Tango is dead—long live ARCore||6|
|Thermaltake Sync box bridges RGB LED walled gardens||3|
|Intel tips off potential 960 GB and 1.5 TB Optane SSD 900Ps||6|
|Sapphire Nitro+ Radeon RX Vegas put a big chill on spicy-hot chips||17|
|Antec P110 Silent touts quiet looks and quiet operation||11|
|Updated LG Gram laptops put heavy-duty power into feathery bodies||17|
|Monkey Day Shortbread||14|
|Thursday deals: a nice Z370 mobo, a huge VA display, and more||6|
|Nice but unoptaneable.||+11|