Hardware events flagged by mcelog

[Antoru76]

Hello beautiful peoples , 

 

The fix common problems plugin , asked me to check via mcelog some hardware events . As well the tool recommend to contact the community support , so I'm here  

 

This is what I got : 

Apr 28 19:29:47 BlackHole kernel: mce: [Hardware Error]: Machine check events logged Apr 28 19:29:47 BlackHole kernel: [Hardware Error]: Corrected error, no action required. Apr 28 19:29:47 BlackHole kernel: [Hardware Error]: CPU:8 (17:71:0) MC3_STATUS[-|CE|MiscV|-|-|-|SyndV|-|-|-]: 0x9820000000010150 Apr 28 19:29:47 BlackHole kernel: [Hardware Error]: IPID: 0x000300b000000000, Syndrome: 0x000000001a000202 Apr 28 19:29:47 BlackHole kernel: [Hardware Error]: Decode Unit Ext. Error Code: 1, Micro-op cache data parity error. Apr 28 19:29:47 BlackHole kernel: [Hardware Error]: cache level: RESV, tx: INSN, mem-tx: IRD Apr 28 19:34:00 BlackHole root: Fix Common Problems Version 2021.04.25a Apr 28 19:34:05 BlackHole root: Fix Common Problems: Error: Machine Check Events detected on your server

 

Seems that is something related with my Ryzen CPU , which is OC up to 42.00 from the base 36.00 Mhz clock . 

So far with my CPU overclocked , I never had a complain , but this error, somehow, is affecting name resolution (DNS) services . Seems to me a coincidence , but as per now, I got internet connectivity on my Unraid, but I can't resolve GitHub for Dockers purposes. So the community plugin (which I have the latest) , can't resolve the repo . Strange things and really seems not related . 

 

Attached the log dump and thanks for the help . Maybe there is something in the log that I'm missing .

blackhole-diagnostics-20210428-2031.zip

[Squid]

4 minutes ago, Antoru76 said:

name resolution (DNS) services

Your DNS server is pointed at your router, which presumably in turn is pointed at something else (or not set in which case it's using your ISP's default settings, which suck and are only used to track you)

 

Try what CA suggests to you and set the static ones in Settings - Network Settings

[Antoru76]

Thanks Squid ,

 

I force via FW rule , to let the clients only use OPNsense as DNS server (which has cloudflare upstream) . Clients can't override it . 

However OPNsense work with Unbound which might be tricky . 

I have also disabled the rule and set manually 1.1.1.1 in Unraid netowrk settings. States have been reset but no changes in Unraid behavior.  I can only think the fact that I got Realtek but it is supported currently in Unraid . 

With this configuration , Unraid always worked and the rest of the clients can resolve . So a bit of weird situation but I will double check that too . 

 

cheers , 

 

 

Edited April 28, 2021 by Antoru76

[Antoru76]

Did all the network troubleshooting. Even set a TMP router to test this behavior but not luck .

This must be a sort of bug related to hardware (CPU) overclocking  since I do have connectivity on Unraid but not name resolution . 

I will cool down my overclock and test again . No big deal . This case can be considered solved . 

 

Thanks for the support .