Date: Mon, 27 Aug 2018 13:29:05 +0200 From: Gary Jennejohn <gljennjohn@gmail.com> To: Phil Norman <philnorm@gmail.com> Cc: Meowthink <meowthink@gmail.com>, freebsd-hackers@freebsd.org, freebsd-stable@freebsd.org Subject: Re: Help diagnose my Ryzen build problem Message-ID: <20180827132905.191dbd8c@ernst.home> In-Reply-To: <CAOa8eG4UGCo3Evz7sp7w72irtP2yb=-9-KURrvCQGu6Z-1HwVA@mail.gmail.com> References: <CABnABoZA4DUOFfr7JdbbBAWxak3=ge6zX0HXtu1RffQH7tSb2Q@mail.gmail.com> <CAOa8eG4UGCo3Evz7sp7w72irtP2yb=-9-KURrvCQGu6Z-1HwVA@mail.gmail.com>
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On Mon, 27 Aug 2018 10:13:10 +0200 Phil Norman <philnorm@gmail.com> wrote: > Hi. > > I have a similar setup: Ryzen 3 and Fatal1ty X370 mini-ITX. I had some > trouble with instability, although my problems weren't panics, but rather > two issues. One was random lockups (with no evidence left in logs), but I > *think* this was down to an inadequately cooled graphics card. > I had instability problems with my Ryzen 5 - lockups for no apparent reason. The only recourse waas a hard reset. It turned out that there were two causes 1) old CPU microcode 2) unhandled errate in the CPU I installed the /usr/ports/sysutils/devcpu-data port, which allowed me to install the latest microcode using cpucontrol(8). I also used a shell script called amd_errata.sh provided by one of the FreeBSD committers. To my shame I can't remember exactly who. Note that the errata fixups are now part of the kernel in FreeBSD 12. After taking these steps about two months ago I have had no more lockups and the machine runs very stabily. [big snip] -- Gary Jennejohn
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