HP ProLiant MicroServer Gen8 instable on v25, OK on v24 and Debian12: kernel issue?

If you scroll upper, there are written times, it varies from ours to days.

System will reboot after NMI and continues working, but

  1. while rebooting data are not accessible

  2. start/stop count is incrementing on disks - power lost for disks during reboot

  3. auto VM run is working, but if all machines run in the same time and they are running “big tasks“, system gets some overload (I am running in one VM ubuntu with docker and some containers and there are some docker jobs consuming CPU) … when I run it manually, I don’t have this problem

  4. containers may have problem too if all running parallel, I run them manually one by one (I have script with short sleep)

I think 3) and 4) maybe caused by too old HW (small performance). But reboots are very unpleasant.

The main problem is I was using TrueNAS Core on this HW "many” years without any issues and after migration to TrueNAS CE (Scale), it is not stable (“enough“).

I can install clean debian or clean freebsd and configure samba share, virtual machiness. But TrueNAS has nice dashboard, reports, audit logs, etc …

I’ve got the exact same cpuidle “settings”.

I think that it is not CPU problem. I suspect more SAS controller operations, but not sure. I have feeling if I run docker containers and don’t write “bigger” files to FS and don’t write “bigger“ files to storage, system is stable. I am not sure about exactly testing of this hypothesis. I also think that we have no solution. Solution is wait for 26.04 if new kernel fix it or don’t use TrueNAS CE.

I was thinking about to turn off hyperthreading, but not realised yet.

There won’t be a “26.04” version, it’ll be “26” (then “26.1”, “26.2”, etc.) :wink:

Joke aside, I’m note sure a new kernel would solve the issue since I can’t find any bugfix close to my issue (the bugreports I’ve found are still open).

I might give the 26 Beta 2 and/or 26 RC a try though.

Please, share info about 26RC. What is your backup plan? XigmaNAS? OMV? Pure FreeBSD and own config? Pure Linux install with own config? Proxmox with virtualised TrueNAS? I don’t want to change HW, I like consumption of this CPU and I want 9 HDD connected so I don’t want to change controller. Thank you

Thanks for sharing.

I’m running a very similar setup (Gen8, G2020T, 16 GB ECC RAM - tested, no errors) and I’m seeing the exact same random restarts.

The system is basically idle most of the time (just file storage). The behavior is identical on my side.

Same thing happens on 25.04 and 25.10 - I rolled back to 24.10 and it’s stable there, no restarts.

At first I thought it might be aging hardware, but after reading this thread and seeing similar reports, it really starts to look more like a software/kernel issue than a hardware problem.

Thank you Blackberry. Do you have also PCI controller or motherboard integrated? Do you have virtualisation enabled?

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I’ve only just spotted this thread, and only quickly scanned it, but:

I have a HP Gen8, with E3-1265L V2 @2.50GHz, 16GB ECC RAM, and ROM is 4/4/19.

B120i Controller, f/w v4.10.

It has 4-off 3.5” 4TB HDDs in the bays, in AHCI mode.

It boots from a SSD connected via a USB-SATA adaptor cable, plugged into the internal, main board USB socket.

It’s running TrueNAS Scale 25.10.2.1 Goldeye, 24/7, with no apparent problems.

(The iLO SD-card is faulty, though)

Also thank you for your experience. Do you have virtualisation and hyperthreading on?

Yes; I’m running two Windows 10 VMs, and have eight available CPU cores.

Show me a Gen8 Microserver that doesn’t have a faulty iLO SD-card error :grinning_face:

They all died long, long ago…

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In my case, the system drive is connected to the first bay via the onboard controller running in AHCI mode (HPE Dynamic Smart Array B120i).

In the BIOS I have Intel Virtualization Technology (VT-x) enabled, VT-d also enabled.

Mine is still working :wink:

It’s holding up and the iLO isn’t complaining, so I guess I ended up with a good unit :smiley:

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