Also affects me. Some more information: After it gives that message, the
I/O for any ZFS device gets really horrible (NVMe SSDs get a maximum
throuput of 10MB/s while normally does 400MB/s) and only solves by
restarting.
Things I have tried based on what I saw over the internet for the same
issue:
I'm also experiencing this problem.
Linux nblucas 5.4.0-33-generic #37-Ubuntu SMP Thu May 21 12:53:59 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
[44262.937772] GpuWatchdog[1602155]: segfault at 0 ip 5616ee370587 sp
7f75ed8b64d0 error 6 in mqtt-explorer.bin[5616eb195000+53d8000]
[44262.93777
Ok so it looks like upgrading to 15.10 the problem has been solved.
The "CPU Bug" (attached) is still getting at boot time, but it looks
harmless. Also SuperMicro has a FAQ that contains exactly this problem
and they say that a BIOS Update solves the problem:
http://www.supermicro.com/support/faqs
Ok, I upgraded to the next release ubuntu asked me (15.10 in this case).
Now it is with 4.2.0-36 kernel. The server is running for a few hours
without any problem so far. I will test for a few more days and comment
again the results here.
--
You received this bug notification because you are a me
Public bug reported:
The server was working perfectly for months, suddenly (yesterday) it
started to slow down the VMs and now I noticed that the CPU Use is very
high and a lot of messages on the dmesg.
I checked if it had any kernel update, but the latest update were from
last year.
I will try
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