June 21, 20206 yr Hi all,  The past week or so I've been getting kernel panics on my server. This has definitely been happening on the most recent betas (6.9.0-beta1 and beta22) and may have been happening on the stable release as well. Unfortunately as the kernel panics, there are no logs of what was happening before or what went wrong, attached is the only screenshot I've been able to pull from the console screen. Any suggestions would be much appreciated.  Â
June 21, 20206 yr Author Further information that may be relevant: The server has a 10GBe NIC The server is running a Ryzen 3700X The motherboard is a X470D4U by AsRock Rack  I've attached the most recent diagnostics from after the reboot. sector5-diagnostics-20200621-1422.zip Edited June 21, 20206 yr by Alexstrasza Add diagnostics
June 21, 20206 yr Community Expert Make sure it's using the recommended power supply idle control setting.
June 21, 20206 yr Author 27 minutes ago, johnnie.black said: Make sure it's using the recommended power supply idle control setting. I've enabled "Typical current idle" and will report back if that resolves the panic.
June 21, 20206 yr If that fails, try dropping the memory speed from it's overclock setting of 3200 down to its native speed of 2666
June 21, 20206 yr Author 1 minute ago, Squid said: If that fails, try dropping the memory speed from it's overclock setting of 3200 down to its native speed of 2666 Will do, thanks!
June 24, 20206 yr Author Update: The server crashed again. I have now reset the RAM overclock so it's running at stock speeds.  The panic does always appear to be in some kind of TCP stack, so that might be relevant if it crashes again.
July 1, 20206 yr Author Final update: The server has not crashed again, so I can comfortably say that the problem was the overclocked RAM. Thank you everyone for your help!
July 3, 20215 yr Hi Alexstrasza,  I'm having the same issue, and it just happened at the end of my array rebuild 😕  Did the RAM speed setting solve the issue on the long term? No more Kernel Panic since then?
July 3, 20215 yr Author 2 hours ago, ocedric said: Hi Alexstrasza,  I'm having the same issue, and it just happened at the end of my array rebuild 😕  Did the RAM speed setting solve the issue on the long term? No more Kernel Panic since then?  Hi there, no, no more complete panics since then. I've had quite a lot of general instability issues, the X470D4U motherboard seems to be plagued with issues, in particular reliability varies hugely BIOS to BIOS, so if you're running that motherboard then I heavily recommend the P3.50 BIOS firmware and 2.20.00 BMC firmware, which have been the most stable I've seen. It's also worth noting that future UnRaid versions have also improved other issues a lot, so I heavily recommend checking you are on the latest version as well.
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