Date: Wed, 17 Jan 2018 16:00:53 -0500 From: Mike Tancsa <mike@sentex.net> To: Don Lewis <truckman@FreeBSD.org> Cc: Pete French <petefrench@ingresso.co.uk>, freebsd-stable@freebsd.org Subject: Re: Ryzen issues on FreeBSD ? Message-ID: <795dbb79-3c18-d967-98b9-5d09a740dbfe@sentex.net> In-Reply-To: <tkrat.6d8f44d87e74fa14@FreeBSD.org> References: <8e842dec-ade7-37d1-6bd8-856ea1a827ca@sentex.net> <3b625072-dfb3-6b4f-494d-7fe1b2fa554c@ingresso.co.uk> <2c6ce4dd-f43c-7c40-abc2-732d6f8996ec@sentex.net> <tkrat.6d8f44d87e74fa14@FreeBSD.org>
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On 1/17/2018 3:39 PM, Don Lewis wrote: > 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. Thanks! I will confirm the cooling. I tried just now looking at the CPU FAN control in the BIOS and up'd it to "turbo" from the default. Does amdtmp.ko work with your chipset ? Nothing on mine unfortunately, so I cant tell from the OS if its running hot. Is there a way to see if your CPU is old and has that bug ? I havent seen any segfaults on the few dozen buildworlds I have done. So far its always been a total lockup and not crash with RELENG11. x86info v1.31pre Found 12 identical CPUs Extended Family: 8 Extended Model: 0 Family: 15 Model: 1 Stepping: 1 CPU Model (x86info's best guess): AMD Zen Series Processor (ZP-B1) Processor name string (BIOS programmed): AMD Ryzen 5 1600 Six-Core Processor Monitor/Mwait: min/max line size 64/64, ecx bit 0 support, enumeration extension SVM: revision 1, 32768 ASIDs, np, lbrVirt, SVMLock, NRIPSave, TscRateMsr, VmcbClean, FlushByAsid, DecodeAssists, PauseFilter, PauseFilterThreshold Address Size: 48 bits virtual, 48 bits physical The physical package has 12 of 16 possible cores implemented. running at an estimated 3.20GHz ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada http://www.tancsa.com/
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