Date: Fri, 30 Jun 2017 16:19:15 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 219399] System panics after several hours of 14-threads-compilation orgies using poudriere on AMD Ryzen... Message-ID: <bug-219399-8-MqnutPTyVW@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-219399-8@https.bugs.freebsd.org/bugzilla/> References: <bug-219399-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D219399 --- Comment #18 from Nils Beyer <nbe@renzel.net> --- SF, sorry, but what five values do you mean exactly? I'm currently not at work = so I cannot test anything for the rest of the weekend. But, because you are experiencing improvments by playing around with voltag= es, it's probably more a voltage than a timing problem. One thing that wonders me most is that the CPU keeps very, very cool at 54= =C2=B0C during compiling stuff with 14 threads. We're talking about an octa-core CPU with 3.0 GHz. Even OCing to 3.4GHz, the temperature stays at 58=C2=B0C. For my taste this temperature is too low, and this suggests that the Ryzen = CPU is permanently undervoltaged. If you feel boldly, you can try the following: - reset all settings to the default values in your BIOS (also SoC volta= ge) - set the CPU VCore voltage staticly to 1.412V and see if that helps in your situation. This has been suggested here: https://community.amd.com/message/2805287?tstart=3D0#2805287 (last sentence) Because I'm home, I cannot test that at the moment. I know that this has not much to do with FreeBSD at all, but for some reason this behaviour is triggered using it. We have another Ryzen-based sever run= ning Win2008R2, and it doesn't show that behaviour at all... BTW: my poudriere build system performed a hard reset (instead of a black screen crash) recently after 8.5 hours - luckily; because so I can still ac= cess it now... --=20 You are receiving this mail because: You are the assignee for the bug.=
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