Dear Maintainer,
I have hit this bug too. Our server (hypervisor with several virtual
machines) did not shut down properly during power outage due to this
bug. Looking at other related reports, it does not matter what type of
UPS is used.
This bug makes the upsmon quite useless.
Please backport this fix to Debian stable.
Thank you in advance.
This is what I got in syslog during power outage:
May 17 07:43:16 xxx nut-monitor[2380]: UPS xxx@localhost on battery
May 17 08:51:26 xxx nut-monitor[2380]: UPS xxx@localhost battery is low
May 17 08:51:31 xxx nut-monitor[2380]: is_ups_critical: seems that UPS
[xxx] is OB+LB now, but it is also calibrating - not declaring a
critical state
... repeated many times for the following 5-6 minutes, until the server
died.
--
Best Regards
Vladislav Kurz
