APCUPSD and "do_IRQ: 3.33 No irq handler for vector"

Question

Logs are filled with error:

Jul 21 17:56:36 servername kernel: [ 2883.646823] do_IRQ: 3.33 No irq handler for vector

Help! What is this?

Its a brand new 18.04 server install on new hardware. I installed APCUPSD via "apt-get -y install apcupsd" and the errors started during the installation. 2 or 3 reboots, the errors persisted. Removed APCUPSD and the errors stopped. Reinstalled, they come back. Turning off the apcupsd service stops the errors.

All the search hits on this error seem to be for very old stuff, like Ubuntu 12 or 14. I need to use APCUPSD. What is going wrong here?

Have you done any edits to the /etc/apcupsd/apcupsd.conf file? Usually it just requires properly identifying the type of UPS and its connection method. — heynnema, Jul 21 '19 at 18:35
Yes, I set the .conf file to what I believe is correct, based on using apcupsd with other systems. — alabamatoy, Jul 21 '19 at 22:02
USB or serial port connection? What did you set the .conf for? — heynnema, Jul 22 '19 at 02:42
I gave the UPS a name, and set it for USB, and I think that's the only changes I made. — alabamatoy, Jul 22 '19 at 12:20
UPSCABLE usb UPSTYPE usb DEVICE /dev/ttyS0
lsusb produces (among other things):

`Bus 001 Device 018: ID 051d:0002 American Power Conversion Uninterruptible Power Supply` — alabamatoy, Jul 23 '19 at 01:36

score 1 · Accepted Answer · answered Jul 24 '19 at 00:17

From the comments...

In /etc/apcupsd/apcupsd.conf there are at least three settings that are important for proper operation of apcupsd via USB. They are UPSCABLE, UPSTYPE, and DEVICE.

In your case, UPSCABLE, UPSTYPE, should be set to usb, and DEVICE should be set to #DEVICE.

APCUPSD and "do_IRQ: 3.33 No irq handler for vector"

1 Answers1