Shell hangs every few seconds

[churchmouse99]

Hi.
Can anyone help me fix the problem of my PVE shell (and basically PVE as a whole) hanging every few seconds?
I did a dmesg and the output seems to show the NIC being disabled and enabled quite a bit.
Any advice would be appreciated.
Thanks.

 

[t.lamprecht]

Hi.

I did a dmesg and the output seems to show the NIC being disabled and enabled quite a bit.

Those are just the virtual interfaces (veth<VMID>i<ID>) of some containers getting attached to the hosts' network bridge (vmbr0).

Anything in the journal (journalctl -b)?
What does top/htop or the like say, any process causing lots of load?
The pressure stall information could be also relevant to see what type of bottleneck your systewm is facing (IO, CPU or maybe even memory) head /proc/pressure/*

 

[churchmouse99]

Thanks for the reply Thomas.

I guess I'm not quite qualified to interpret the journalctl -b output. There are a couple of statements mentioning a bug in the firmware. And then there's the in-and-out of promiscuous mode.
At the end there's quite a number of sessions being logged in and out. I figure some of the logouts is when my pve shell hangs (??).... very often I click on "Shell" and when the console comes up, I don't even get a chance to key a full command before it just hangs on me. Sometimes it comes back after half a minute to a minute. Other times I click on something else and then click back on "Shell" to start a new session.

CPU and Memory displayed in "top" is very low, CPU < 5% and memory < 1%
Curiously, though I can't confirm right now, it seems that as long as top is running, it doesn't hang.

Pressure is low too.

Appreciate it very much if you could take a look at the attached journalctl -b and pressure output.