[lxc-users] lxd process 100% CPU

[Paweł A. Gajda]

On Sat, Jan 28, 2017 at 4:35 PM, David Favor <david at davidfavor.com> wrote:

> Colin Holywell wrote:
>
> I recently upgraded the lxd installation on my Ubuntu 16.04 system. I used
> the lxd-stable repo to update the packages Ubuntu provides (version 2.0 I
> think?) to version 2.7. Everything upgraded fine but now once or twice a
> day the lxd process starts gobbling up a bunch of CPU time. There is
> nothing in the /var/log/lxd/lxd.log or syslog to indicate what it is doing.
> If I restart the lxd service or wait a couple hours it will stops and go
> back to normal.
>
> Does any one know what it is doing? Can I downgrade back to the Ubuntu
> supplied lxd version and not loose my containers?
>
> Try connecting to the process pid with strace + see if that surfaces how
> to fix problem.
>

Same with 2.8, 100% CPU, strace does not help much:

# strace -p 2580
strace: Process 2580 attached
futex(0xfdcdf0, FUTEX_WAIT, 0, NULL

Any hints? 2.2 works for months now in the same environent (PLD Linux,
kernel 4.8) without any problem.
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